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1. Phase transition kinetics of superionic H2O ice phases revealed by Megahertz X-ray free-electron laser-heating experiments

Author: R. J. Husband, H. P. Liermann, J. D. McHardy, R. S. McWilliams, A. F. Goncharov, V. B. Prakapenka, E. Edmund, S. Chariton, Z. Konôpková, C. Strohm, C. Sanchez-Valle, M. Frost, L. Andriambariarijaona, K. Appel, C. Baehtz, O. B. Ball, R. Briggs, J. Buchen, V. Cerantola, J. Choi, A. L. Coleman, H. Cynn, A. Dwivedi, H. Graafsma, H. Hwang, E. Koemets, T. Laurus, Y. Lee, X. Li, H. Marquardt, A. Mondal, M. Nakatsutsumi, S. Ninet, E. Pace, C. Pepin, C. Prescher, S. Stern, J. Sztuk-Dambietz, U. Zastrau, and M. I. McMahon
Subjects: Science
Abstract: Abstract H2O transforms to two forms of superionic (SI) ice at high pressures and temperatures, which contain highly mobile protons within a solid oxygen sublattice. Yet the stability field of both phases remains debated. Here, we present the results of an ultrafast X-ray heating study utilizing MHz pulse trains produced by the European X-ray Free Electron Laser to create high temperature states of H2O, which were probed using X-ray diffraction during dynamic cooling. We confirm an isostructural transition during heating in the 26-69 GPa range, consistent with the formation of SI-bcc. In contrast to prior work, SI-fcc was observed exclusively above ~50 GPa, despite evidence of melting at lower pressures. The absence of SI-fcc in lower pressure runs is attributed to short heating timescales and the pressure-temperature path induced by the pump-probe heating scheme in which H2O was heated above its melting temperature before the observation of quenched crystalline states, based on the earlier theoretical prediction that SI-bcc nucleates more readily from the fluid than SI-fcc. Our results may have implications for the stability of SI phases in ice-rich planets, for example during dynamic freezing, where the preferential crystallization of SI-bcc may result in distinct physical properties across mantle ice layers.
Published: 2024
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2. Expected resolution limits of x-ray free-electron laser single-particle imaging for realistic source and detector properties

Author: Juncheng E, Y. Kim, J. Bielecki, M. Sikorski, R. de Wijn, C. Fortmann-Grote, J. Sztuk-Dambietz, J. C. P. Koliyadu, R. Letrun, H. J. Kirkwood, T. Sato, R. Bean, A. P. Mancuso, and C. Kim
Subjects: Crystallography, QD901-999
Abstract: The unprecedented intensity of x-ray free-electron laser sources has enabled single-particle x-ray diffraction imaging (SPI) of various biological specimens in both two-dimensional projection and three dimensions (3D). The potential of studying protein dynamics in their native conditions, without crystallization or chemical staining, has encouraged researchers to aim for increasingly higher resolutions with this technique. The currently achievable resolution of SPI is limited to the sub-10 nanometer range, mainly due to background effects, such as instrumental noise and parasitic scattering from the carrier gas used for sample delivery. Recent theoretical studies have quantified the effects of x-ray pulse parameters, as well as the required number of diffraction patterns to achieve a certain resolution, in a 3D reconstruction, although the effects of detector noise and the random particle orientation in each diffraction snapshot were not taken into account. In this work, we show these shortcomings and address limitations on achievable image resolution imposed by the adaptive gain integrating pixel detector noise.
Published: 2022
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3. Two-particle azimuthal correlations as a probe of collective behaviour in deep inelastic ep scattering at HERA

Author: The ZEUS collaboration, I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, R. K. Dementiev, S. Dusini, J. Ferrando, S. Floerchinger, B. Foster, E. Gallo, D. Gangadharan, A. Garfagnini, A. Geiser, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, C. Gwenlan, D. Hochman, N. Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, R. Klanner, U. Klein, I. A. Korzhavina, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, B. B. Levchenko, A. Levy, B. Löhr, E. Lohrmann, A. Longhin, O. Yu. Lukina, I. Makarenko, J. Malka, S. Masciocchi, K. Nagano, J. D. Nam, J. Onderwaater, Yu. Onishchuk, E. Paul, I. Pidhurskyi, A. Polini, M. Przybycień, A. Quintero, M. Ruspa, D. H. Saxon, U. Schneekloth, T. Schörner-Sadenius, I. Selyuzhenkov, M. Shchedrolosiev, L. M. Shcheglova, I. O. Skillicorn, W. Słomiński, A. Solano, L. Stanco, N. Stefaniuk, P. Stopa, B. Surrow, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W. A. T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A. F. Żarnecki, L. Zawiejski, and O. Zenaiev
Subjects: Collective flow, Lepton-Nucleon Scattering (experiments), Particle correlations and fluctuations, Quark gluon plasma, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Two-particle azimuthal correlations have been measured in neutral current deep inelastic ep scattering with virtuality Q 2 > 5 GeV2 at a centre-of-mass energy s $$ \sqrt{s} $$ = 318 GeV recorded with the ZEUS detector at HERA. The correlations of charged particles have been measured in the range of laboratory pseudorapidity −1.5 < η < 2.0 and transverse momentum 0.1 < p T < 5.0 GeV and event multiplicities N ch up to six times larger than the average 〈N ch〉 ≈ 5. The two-particle correlations have been measured in terms of the angular observables c n{2} = 〈〈cosnΔφ〉〉, where n is between 1 and 4 and ∆φ is the relative azimuthal angle between the two particles. Comparisons with available models of deep inelastic scattering, which are tuned to reproduce inclusive particle production, suggest that the measured two-particle correlations are dominated by contributions from multijet production. The correlations observed here do not indicate the kind of collective behaviour recently observed at the highest RHIC and LHC energies in high-multiplicity hadronic collisions.
Published: 2020
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4. Charm production in charged current deep inelastic scattering at HERA

Author: The ZEUS collaboration, I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, R. K. Dementiev, S. Dusini, J. Ferrando, B. Foster, E. Gallo, D. Gangadharan, A. Garfagnini, A. Geiser, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, C. Gwenlan, D. Hochman, N. Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, R. Klanner, U. Klein, I. A. Korzhavina, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, B. B. Levchenko, A. Levy, B. Löhr, E. Lohrmann, A. Longhin, O. Yu. Lukina, I. Makarenko, J. Malka, S. Masciocchi, K. Nagano, J. D. Nam, J. Onderwaater, Yu. Onishchuk, E. Paul, I. Pidhurskyi, A. Polini, M. Przybycien, A. Quintero, M. Ruspa, D. H. Saxon, U. Schneekloth, T. Schörner-Sadenius, I. Selyuzhenkov, M. Shchedrolosiev, L. M. Shcheglova, O. Shkola, I. O. Skillicorn, W. Slominski, A. Solano, L. Stanco, N. Stefaniuk, P. Stopa, B. Surrow, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W. A. T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A. F. Żarnecki, L. Zawiejski, and O. Zenaiev
Subjects: Heavy quark production, Lepton-Nucleon Scattering (experiments), QCD, Electroweak interaction, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Charm production in charged current deep inelastic scattering has been measured for the first time in e ± p collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of 358 pb−1. Results are presented separately for e + p and e − p scattering at a centre-of-mass energy of s $$ \sqrt{s} $$ = 318 GeV within a kinematic phase-space region of 200 GeV2 < Q 2 < 60000 GeV2 and y < 0.9, where Q 2 is the squared four-momentum transfer and y is the inelasticity. The measured cross sections of electroweak charm production are consistent with expectations from the Standard Model within the large statistical uncertainties.
Published: 2019
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5. Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic ep scattering at HERA

Author: H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, V. Andreev, S. Antonelli, V. Aushev, A. Baghdasaryan, K. Begzsuren, O. Behnke, U. Behrens, A. Belousov, A. Bertolin, I. Bloch, A. Bolz, V. Boudry, G. Brandt, V. Brisson, D. Britzger, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, A. Buniatyan, P. J. Bussey, A. Bylinkin, L. Bystritskaya, A. Caldwell, A. J. Campbell, K. B. Cantun Avila, M. Capua, C. D. Catterall, K. Cerny, V. Chekelian, J. Chwastowski, J. Ciborowski, R. Ciesielski, J. G. Contreras, A. M. Cooper-Sarkar, M. Corradi, J. Cvach, J. B. Dainton, K. Daum, R. K. Dementiev, R. C. E. Devenish, C. Diaconu, M. Dobre, S. Dusini, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, M. Fleischer, A. Fomenko, B. Foster, E. Gallo, A. Garfagnini, J. Gayler, A. Geiser, A. Gizhko, L. K. Gladilin, L. Goerlich, N. Gogitidze, Yu. A. Golubkov, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, G. Grindhammer, G. Grzelak, C. Gwenlan, D. Haidt, R. C. W. Henderson, J. Hladkỳ, O. Hlushchenko, D. Hochman, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, Z. A. Ibrahim, Y. Iga, M. Jacquet, X. Janssen, N. Z. Jomhari, A. W. Jung, H. Jung, I. Kadenko, S. Kananov, M. Kapichine, U. Karshon, J. Katzy, P. Kaur, C. Kiesling, D. Kisielewska, R. Klanner, M. Klein, U. Klein, C. Kleinwort, R. Kogler, I. A. Korzhavina, P. Kostka, A. Kotański, N. Kovalchuk, H. Kowalski, J. Kretzschmar, D. Krücker, K. Krüger, B. Krupa, O. Kuprash, M. Kuze, M. P. J. Landon, W. Lange, P. Laycock, A. Lebedev, B. B. Levchenko, S. Levonian, A. Levy, V. Libov, K. Lipka, M. Lisovyi, B. List, J. List, B. Lobodzinski, B. Löhr, E. Lohrmann, A. Longhin, O. Yu. Lukina, I. Makarenko, E. Malinovski, J. Malka, H. -U. Martyn, S. Masciocchi, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, F. Mohamad Idris, N. Mohammad Nasir, A. Morozov, K. Müller, V. Myronenko, K. Nagano, J. D. Nam, Th. Naumann, P. R. Newman, M. Nicassio, C. Niebuhr, G. Nowak, J. E. Olsson, J. Onderwaater, Yu. Onishchuk, D. Ozerov, C. Pascaud, G. D. Patel, E. Paul, E. Perez, W. Perlański, A. Petrukhin, I. Picuric, H. Pirumov, D. Pitzl, N. S. Pokrovskiy, R. Polifka, A. Polini, M. Przybycień, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, M. Ruspa, D. Šálek, D. P. C. Sankey, M. Sauter, E. Sauvan, D. H. Saxon, M. Schioppa, S. Schmitt, U. Schneekloth, L. Schoeffel, A. Schöning, T. Schörner-Sadenius, F. Sefkow, I. Selyuzhenkov, L. M. Shcheglova, S. Shushkevich, Yu. Shyrma, I. O. Skillicorn, W. Słomiński, A. Solano, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, L. Stanco, M. Steder, N. Stefaniuk, B. Stella, A. Stern, P. Stopa, U. Straumann, B. Surrow, T. Sykora, J. Sztuk-Dambietz, E. Tassi, P. D. Thompson, K. Tokushuku, J. Tomaszewska, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, A. Verbytskyi, W. A. T. Wan Abdullah, D. Wegener, K. Wichmann, M. Wing, E. Wünsch, S. Yamada, Y. Yamazaki, J. Žáček, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, Z. Zhang, B. O. Zhautykov, R. Žlebčík, H. Zohrabyan, and F. Zomer
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Measurements of open charm and beauty production cross sections in deep inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon $$2.5~\hbox {GeV}^2\le Q^2 \le 2000\, \hbox {GeV}^2$$ 2.5GeV2≤Q2≤2000GeV2 and Bjorken scaling variable $$3 \cdot 10^{-5} \le x_\mathrm{Bj} \le 5 \cdot 10^{-2}$$ 3·10-5≤xBj≤5·10-2 . The combination method accounts for the correlations of the statistical and systematic uncertainties among the different datasets. Perturbative QCD calculations are compared to the combined data. A next-to-leading order QCD analysis is performed using these data together with the combined inclusive deep inelastic scattering cross sections from HERA. The running charm- and beauty-quark masses are determined as $$m_c(m_c) = 1.290^{+0.046}_{-0.041} \mathrm{(exp/fit)}$$ mc(mc)=1.290-0.041+0.046(exp/fit) $${}^{+0.062}_{-0.014} \mathrm{(model)}$$ -0.014+0.062(model) $${}^{+0.003}_{-0.031} \mathrm{(parameterisation)}$$ -0.031+0.003(parameterisation) GeV and $$m_b(m_b) = 4.049^{+0.104}_{-0.109} \mathrm{(exp/fit)}$$ mb(mb)=4.049-0.109+0.104(exp/fit) $${}^{+0.090}_{-0.032} \mathrm{(model)}$$ -0.032+0.090(model) $${}^{+0.001}_{-0.031} \mathrm{(parameterisation)}~\mathrm{GeV}$$ -0.031+0.001(parameterisation)GeV .
Published: 2018
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6. Further studies of isolated photon production with a jet in deep inelastic scattering at HERA

Author: The ZEUS collaboration, H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, V. Aushev, Y. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, R. K. Dementiev, R. C. E. Devenish, S. Dusini, B. Foster, G. Gach, E. Gallo, A. Garfagnini, A. Geiser, A. Gizhko, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, M. Guzik, C. Gwenlan, O. Hlushchenko, D. Hochman, R. Hori, Z. A. Ibrahim, Y. Iga, M. Ishitsuka, N. Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, D. Kisielewska, R. Klanner, U. Klein, I. A. Korzhavina, A. Kotanski, N. Kovalchuk, H. Kowalski, B. Krupa, O. Kuprash, M. Kuze, B. B. Levchenko, A. Levy, M. Lisovyi, E. Lobodzinska, B. Löhr, E. Lohrmann, A. Longhin, O. Yu. Lukina, J. Malka, A. Mastroberardino, F. Mohamad Idris, N. Mohammad Nasir, V. Myronenko, K. Nagano, Yu. Onishchuk, E. Paul, W. Perlanski, N. S. Pokrovskiy, A. Polini, M. Przybycien, M. Ruspa, D. H. Saxon, M. Schioppa, U. Schneekloth, T. Schörner-Sadenius, L. M. Shcheglova, O. Shkola, Yu. Shyrma, I. O. Skillicorn, W. Slominski, A. Solano, L. Stanco, N. Stefaniuk, A. Stern, P. Stopa, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, J. Tomaszewska, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W. A. T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, and B. O. Zhautykov
Subjects: Lepton-Nucleon Scattering (experiments), Photon production, QCD, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Isolated photons with high transverse energy have been studied in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326 pb−1 in the range of exchanged-photon virtuality 10-350 GeV2. Outgoing isolated photons with transverse energy 4
Published: 2018
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7. Search for a narrow baryonic state decaying to pKS0 and p‾KS0 in deep inelastic scattering at HERA

Author: H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, S. Antonelli, V. Aushev, O. Behnke, U. Behrens, A. Bertolin, S. Bhadra, I. Bloch, E.G. Boos, I. Brock, N.H. Brook, R. Brugnera, A. Bruni, P.J. Bussey, A. Caldwell, M. Capua, C.D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A.M. Cooper-Sarkar, M. Corradi, R.K. Dementiev, R.C.E. Devenish, S. Dusini, B. Foster, G. Gach, E. Gallo, A. Garfagnini, A. Geiser, A. Gizhko, L.K. Gladilin, Yu.A. Golubkov, G. Grzelak, M. Guzik, C. Gwenlan, W. Hain, O. Hlushchenko, D. Hochman, R. Hori, Z.A. Ibrahim, Y. Iga, M. Ishitsuka, F. Januschek, N.Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, D. Kisielewska, R. Klanner, U. Klein, I.A. Korzhavina, A. Kotański, U. Kötz, N. Kovalchuk, H. Kowalski, B. Krupa, O. Kuprash, M. Kuze, B.B. Levchenko, A. Levy, S. Limentani, M. Lisovyi, E. Lobodzinska, B. Löhr, E. Lohrmann, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, I. Makarenko, J. Malka, A. Mastroberardino, F. Mohamad Idris, N. Mohammad Nasir, V. Myronenko, K. Nagano, T. Nobe, R.J. Nowak, Yu. Onishchuk, E. Paul, W. Perlański, N.S. Pokrovskiy, A. Polini, M. Przybycień, P. Roloff, M. Ruspa, D.H. Saxon, M. Schioppa, U. Schneekloth, T. Schörner-Sadenius, L.M. Shcheglova, R. Shevchenko, O. Shkola, Yu. Shyrma, I. Singh, I.O. Skillicorn, W. Słomiński, A. Solano, L. Stanco, N. Stefaniuk, A. Stern, P. Stopa, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, J. Tomaszewska, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W.A.T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, N. Zakharchuk, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, B.O. Zhautykov, and D.S. Zotkin
Subjects: Physics, QC1-999
Abstract: A search for a narrow baryonic state in the pKS0 and p‾KS0 system has been performed in ep collisions at HERA with the ZEUS detector using an integrated luminosity of 358pb−1 taken in 2003–2007. The search was performed with deep inelastic scattering events at an ep centre-of-mass energy of 318GeV for exchanged photon virtuality, Q2, between 20 and 100GeV2. Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb−1 taken in 1996–2000, no resonance peak was found in the p(p‾)KS0 invariant-mass distribution in the range 1.45–1.7 GeV. Upper limits on the production cross section are set.
Published: 2016
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8. Measurement of the cross-section ratio σψ(2S)/σJ/ψ(1S) in deep inelastic exclusive ep scattering at HERA

Author: H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, S. Antonelli, V. Aushev, Y. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, E.G. Boos, K. Borras, I. Brock, N.H. Brook, R. Brugnera, A. Bruni, P.J. Bussey, A. Caldwell, M. Capua, C.D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A.M. Cooper-Sarkar, M. Corradi, F. Corriveau, R.K. Dementiev, R.C.E. Devenish, G. Dolinska, S. Dusini, J. Figiel, B. Foster, G. Gach, E. Gallo, A. Garfagnini, A. Geiser, A. Gizhko, L.K. Gladilin, Yu.A. Golubkov, J. Grebenyuk, I. Gregor, G. Grzelak, O. Gueta, M. Guzik, W. Hain, D. Hochman, R. Hori, Z.A. Ibrahim, Y. Iga, M. Ishitsuka, A. Iudin, F. Januschek, N.Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, M. Kaur, P. Kaur, D. Kisielewska, R. Klanner, U. Klein, N. Kondrashova, O. Kononenko, Ie. Korol, I.A. Korzhavina, A. Kotański, U. Kötz, N. Kovalchuk, H. Kowalski, B. Krupa, O. Kuprash, M. Kuze, B.B. Levchenko, A. Levy, V. Libov, S. Limentani, M. Lisovyi, E. Lobodzinska, B. Löhr, E. Lohrmann, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, I. Makarenko, J. Malka, S. Mergelmeyer, F. Mohamad Idris, N. Mohammad Nasir, V. Myronenko, K. Nagano, T. Nobe, D. Notz, R.J. Nowak, Yu. Onishchuk, E. Paul, W. Perlański, N.S. Pokrovskiy, M. Przybycień, P. Roloff, I. Rubinsky, M. Ruspa, D.H. Saxon, M. Schioppa, W.B. Schmidke, U. Schneekloth, T. Schörner-Sadenius, L.M. Shcheglova, R. Shevchenko, O. Shkola, Yu. Shyrma, I. Singh, I.O. Skillicorn, W. Słomiński, A. Solano, L. Stanco, N. Stefaniuk, A. Stern, P. Stopa, J. Sztuk-Dambietz, D. Szuba, J. Szuba, E. Tassi, K. Tokushuku, J. Tomaszewska, A. Trofymov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, O. Viazlo, R. Walczak, W.A.T. Wan Abdullah, K. Wichmann, M. Wing, G. Wolf, S. Yamada, Y. Yamazaki, N. Zakharchuk, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, B.O. Zhautykov, N. Zhmak, and D.S. Zotkin
Subjects: Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: The exclusive deep inelastic electroproduction of ψ(2S) and J/ψ(1S) at an ep centre-of-mass energy of 317 GeV has been studied with the ZEUS detector at HERA in the kinematic range 2
Published: 2016
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9. Two-particle azimuthal correlations as a probe of collective behaviour in deep inelastic $\textit{ep}$ scattering at HERA

Author: A. M. Cooper-Sarkar, B. B. Levchenko, Yu. A. Golubkov, E. Paul, R. Brugnera, N. Z. Jomhari, Ilya Selyuzhenkov, Oleg Kuprash, J. Sztuk-Dambietz, O. Turkot, S. Masciocchi, Bernd Surrow, G. Grzelak, Ada Solano, Thomas Schörner-Sadenius, Olaf Behnke, I. Pidhurskyi, Uta Klein, Yuji Yamazaki, M. Ruspa, I. Makarenko, Claire Gwenlan, Ulf Behrens, H. Kowalski, I. O. Skillicorn, O. Yu. Lukina, M. Shchedrolosiev, I. Abt, D. Gangadharan, Wojciech Slominski, Robert Ciesielski, A. Longhin, Mariusz Przybycien, P. Stopa, M. Corradi, J. D. Nam, J. Onderwaater, Nataliia Kovalchuk, R. Aggarwal, S. Kananov, Katsuo Tokushuku, L. M. Shcheglova, Stefan Floerchinger, Elisabetta Gallo, Yu. Onishchuk, A. Garfagnini, B. Löhr, V. Aushev, O. Zenaiev, Aleksander Filip Żarnecki, Janusz Chwastowski, L. Stanco, A. Bertolin, Achim Geiser, S. Yamada, K. Wichmann, A. Bruni, I. Kadenko, A. Quintero, N. H. Brook, L. Zawiejski, M. Turcato, Kunihiro Nagano, D. Hochman, U. Schneekloth, Enrico Tassi, P. J. Bussey, W. A. T. Wan Abdullah, B. Foster, S. Dusini, Ingo Bloch, P. Kaur, M. Kuze, E. Lohrmann, N. Stefaniuk, I. A. Korzhavina, Leszek Adamczyk, J. Ciborowski, U. Karshon, J. Malka, J. Ferrando, A. Polini, L. K. Gladilin, R. K. Dementiev, Allen Caldwell, Matthew Wing, T. Tymieniecka, Marcella Capua, Andrii Verbytskyi, Aharon Levy, Ian Brock, D. H. Saxon, C. D. Catterall, and Robert Klanner
Subjects: Nuclear Theory, Hadron, 01 natural sciences, deep inelastic scattering [model], model: deep inelastic scattering, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), multiplicity, Nuclear Experiment (nucl-ex), Nuclear Experiment, Monte Carlo, Brookhaven RHIC Coll, Physics, angular correlation: two-particle, HERA, Particle correlations and fluctuations, Charged particle, DESY HERA Stor, High Energy Physics - Phenomenology, charged particle: correlation, CERN LHC Coll, Pseudorapidity, correlation: two-particle, Nuclear and High Energy Physics, neutral current, Lepton-Nucleon Scattering (experiments), collective, FOS: Physical sciences, Quark gluon plasma, transverse momentum, HERA, ZEUS, Collective flow, Nuclear Theory (nucl-th), Nuclear physics, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Collective flow, ddc:530, 010306 general physics, hadron hadron: interaction, two-particle [correlation], interaction [hadron hadron], two-particle [angular correlation], ZEUS (particle detector), Neutral current, 010308 nuclear & particles physics, Scattering, scattering, ZEUS, Deep inelastic scattering, rapidity, correlation [charged particle], lcsh:QC770-798, High Energy Physics::Experiment
Abstract: Journal of high energy physics 2004(4), 70 (2020). doi:10.1007/JHEP04(2020)070, Two-particle azimuthal correlations have been measured in neutral current deep inelastic ep scattering with virtuality Q$^{2}$> 5 GeV$^{2}$ at a centre-of-mass energy $ \sqrt{s} $ = 318 GeV recorded with the ZEUS detector at HERA. The correlations of charged particles have been measured in the range of laboratory pseudorapidity −1.5 < η < 2.0 and transverse momentum 0.1 < p$_{T}$< 5.0 GeV and event multiplicities N$_{ch}$ up to six times larger than the average 〈N$_{ch}$〉 ≈ 5. The two-particle correlations have been measured in terms of the angular observables c$_{n{2}}$ = 〈〈cosnΔφ〉〉, where n is between 1 and 4 and ∆φ is the relative azimuthal angle between the two particles. Comparisons with available models of deep inelastic scattering, which are tuned to reproduce inclusive particle production, suggest that the measured two-particle correlations are dominated by contributions from multijet production. The correlations observed here do not indicate the kind of collective behaviour recently observed at the highest RHIC and LHC energies in high-multiplicity hadronic collisions., Published by SISSA, [Trieste]
Published: 2019
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10. Charm production in charged current deep inelastic scattering at HERA

Author: Olaf Behnke, N. Z. Jomhari, Bernd Surrow, C. D. Catterall, Achim Geiser, Marcella Capua, Ada Solano, O. Shkola, B. B. Levchenko, G. Grzelak, W. Słomiński, Ulf Behrens, H. Kowalski, Claire Gwenlan, B. Löhr, A. Longhin, R. Brugnera, P. Stopa, Leszek Adamczyk, J. Onderwaater, Luca Stanco, S. Kananov, S. Yamada, M. Kuze, Thomas Schörner-Sadenius, E. Lohrmann, Andrii Verbytskyi, Marta Ruspa, Katsuo Tokushuku, Robert Ciesielski, Elisabetta Gallo, Yu. Onishchuk, M. Shchedrolosiev, Mariusz Przybycien, M. Corradi, Ian Brock, W. A. T. Wan Abdullah, O. Zenaiev, Matthew Wing, Uta Klein, Janusz Chwastowski, I. Pidhurskyi, D. H. Saxon, A. Quintero, A. Bruni, I. Abt, D. Gangadharan, L. M. Shcheglova, Ilya Selyuzhenkov, Oleg Kuprash, S. Masciocchi, Enrico Tassi, I. Makarenko, O. Yu. Lukina, Nataliia Kovalchuk, B. Foster, J. Ferrando, Aleksander Filip Żarnecki, S. Dusini, Ingo Bloch, N. Stefaniuk, Aharon Levy, N. H. Brook, L. K. Gladilin, R. K. Dementiev, J. D. Nam, I. O. Skillicorn, U. Karshon, Yuji Yamazaki, U. Schneekloth, Allen Caldwell, D. Hochman, P. J. Bussey, T. Tymieniecka, Robert Klanner, I. Kadenko, V. Aushev, K. Wichmann, A. M. Cooper-Sarkar, I. A. Korzhavina, Yu. A. Golubkov, E. Paul, R. Aggarwal, A. Garfagnini, J. Sztuk-Dambietz, O. Turkot, A. Bertolin, L. Zawiejski, M. Turcato, Kunihiro Nagano, P. Kaur, J. Ciborowski, J. Malka, and A. Polini
Subjects: data analysis method, Nuclear and High Energy Physics, HERA, ZEUS, Electroweak interaction, Heavy quark production, Lepton-Nucleon Scattering (experiments), QCD, HERA, heavy quark production, FOS: Physical sciences, phase space [kinematics], measured [cross section], 01 natural sciences, High Energy Physics - Experiment, charged current, Nuclear physics, High Energy Physics - Experiment (hep-ex), statistical analysis, deep inelastic scattering, 0103 physical sciences, Electroweak interaction, ddc:530, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, deep inelastic scattering [positron p], Charm (quantum number), 010306 general physics, Nuclear Experiment, Monte Carlo, lepton-nucleon scattering (experiments), Charged current, Physics, Luminosity (scattering theory), ZEUS (particle detector), electroweak interaction, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, scattering, ZEUS, Deep inelastic scattering, production [charm], DESY HERA Stor, deep inelastic scattering [electron p], lcsh:QC770-798, High Energy Physics::Experiment, statistical, experimental results
Abstract: Charm production in charged current deep inelastic scattering has been measured for the first time in e ± p collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of 358 pb−1. Results are presented separately for e + p and e − p scattering at a centre-of-mass energy of $$ \sqrt{s} $$ s = 318 GeV within a kinematic phase-space region of 200 GeV2 < Q 2 < 60000 GeV2 and y < 0.9, where Q 2 is the squared four-momentum transfer and y is the inelasticity. The measured cross sections of electroweak charm production are consistent with expectations from the Standard Model within the large statistical uncertainties.
Published: 2019
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11. Measurement of the cross-section ratio σ ψ(2S) / σ J/ψ(1S) in deep inelastic exclusive ep scattering at HERA

Author: Matthew Wing, P. Roloff, N. Kovalchuk, B. B. Levchenko, F. Corriveau, G. Grzelak, E.G. Boos, I.O. Skillicorn, Takuya Nobe, I. Abt, A. Kotański, T. Tsurugai, W. A. T. Wan Abdullah, F. Januschek, I. Kadenko, R. Brugnera, Sebastian Mergelmeyer, Marco Schioppa, Yu.O. Shyrma, Kerstin Borras, Achim Geiser, Ie. Korol, E. Lobodzinska, N. Z. Jomhari, A. Garfagnini, Marcella Capua, L. M. Shcheglova, W. Hain, Leszek Adamczyk, R. Ciesielski, A. M. Cooper-Sarkar, I. A. Korzhavina, Andrii Gizhko, Ada Solano, U. Karshon, S. Antonelli, Yu. Onishchuk, O. Yu. Lukina, Ganna Dolinska, Thomas Schörner-Sadenius, Y. Yamazaki, Yu. A. Golubkov, D. Szuba, N.S. Pokrovskiy, L. Stanco, S. Limentani, R. Shevchenko, A. Longhin, E. Paul, D.H. Saxon, O. Kononenko, Katsuo Tokushuku, A. Bruni, M. Turcato, I. Singh, E. Lohrmann, F. Mohamad Idris, K. Nagano, O. Turkot, P. Stopa, Janusz Chwastowski, R. Klanner, Enrico Tassi, U. Klein, V. Aushev, O. Zenaiev, B. Foster, S. Dusini, K. Wichmann, M. Adamus, W. Słomiński, Ulf Behrens, H. Kowalski, J. Grebenyuk, D. Lontkovskyi, I. Gregor, Mariusz Przybycien, M. Corradi, O. Viazlo, I. Makarenko, Allen Caldwell, L. K. Gladilin, R. K. Dementiev, Y. Iga, N. Kondrashova, Zainol Abidin Ibrahim, A. Bertolin, R.C.E. Devenish, T. Tymieniecka, S. Kananov, U. Kötz, L. Zawiejski, B. Löhr, V. Myronenko, R. J. Nowak, W. Perlanski, P. Kaur, B.O. Zhautykov, Masaki Ishitsuka, J. Tomaszewska, O. Kuprash, Jan Figiel, J. Ciborowski, N. Stefaniuk, A. Iudin, Manjit Kaur, N. Mohammad Nasir, M. Lisovyi, J. Malka, Roman Walczak, Halina Abramowicz, I. Rubinsky, Ingo Bloch, A. Trofymov, D. Notz, D.S. Zotkin, C. D. Catterall, O. Shkola, N. Zhmak, Gy. Wolf, B. Krupa, J. Szuba, S. Yamada, Marcin Pawel Guzik, U. Schneekloth, M. Kuze, Grzegorz Gach, Olaf Behnke, Vladyslav Libov, J. Sztuk-Dambietz, Ian Brock, D. Hochman, R. Hori, Y. Aushev, E. Gallo, Danuta Kisielewska, N. Zakharchuk, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, Aharon Levy, Aleksander Filip Żarnecki, N. H. Brook, Peter Bussey, A. Stern, and W. B. Schmidke
Subjects: exclusive reaction, Nuclear and High Energy Physics, Particle physics, Photon, Proton, HERA, FOS: Physical sciences, HERA, ZEUS, Deep inelastic scattering, Psi meson production, 01 natural sciences, 7. Clean energy, decay modes, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), deep inelastic scattering, quantum chromodynamics, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, Nuclear Experiment, 010306 general physics, Physics, ZEUS (particle detector), Luminosity (scattering theory), production [vector meson], 010308 nuclear & particles physics, Scattering, electroproduction [psi(3685)], photon, ZEUS, scattering [electron p], Deep inelastic scattering, electroproduction [J/psi(3100)], DESY HERA Stor, Psi meson production, kinematics, Vertex (curve), lcsh:QC770-798, High Energy Physics::Experiment, ratio [cross section], experimental results
Abstract: The exclusive deep inelastic electroproduction of $\psi(2S)$ and $J/\psi(1S)$ at an $ep$ centre-of-mass energy of 317 GeV has been studied with the ZEUS detector at HERA in the kinematic range $2 < Q^2 < 80$ GeV$^2$, $30 < W < 210$ GeV and $|t| < 1$ GeV$^2$, where $Q^2$ is the photon virtuality, $W$ is the photon-proton centre-of-mass energy and $t$ is the squared four-momentum transfer at the proton vertex. The data for $2 < Q^2 < 5$ GeV$^2$ were taken in the HERA I running period and correspond to an integrated luminosity of 114 pb$^{-1}$. The data for $5 < Q^2 < 80$ GeV$^2$ are from both HERA I and HERA II periods and correspond to an integrated luminosity of 468 pb$^{-1}$. The decay modes analysed were $\mu^+\mu^-$ and $J/\psi(1S) \,\pi^+\pi^-$ for the $\psi(2S)$ and $\mu^+\mu^-$ for the $J/\psi(1S)$. The cross-section ratio $\sigma_{\psi(2S)}/\sigma_{J/\psi(1S)}$ has been measured as a function of $Q^2, W$ and $t$. The results are compared to predictions of QCD-inspired models of exclusive vector-meson production., Comment: 24 pages, 8 figures
Published: 2016

12. Search for a narrow baryonic state decaying to pKS0 and p‾KS0 in deep inelastic scattering at HERA

Author: E. Lobodzinska, Danuta Kisielewska, Marco Schioppa, Thomas Schörner-Sadenius, Y. Yamazaki, R.C.E. Devenish, E. Lohrmann, I.O. Skillicorn, N. Zakharchuk, F. Mohamad Idris, R. Klanner, N. Stefaniuk, P. Stopa, M. Kuze, R. Hori, W. Słomiński, N. Kovalchuk, Olaf Behnke, Ulf Behrens, H. Kowalski, E. Gallo, Grzegorz Gach, B. B. Levchenko, O. Zenaiev, A. Garfagnini, Katsuo Tokushuku, R. Brugnera, Anna Mastroberardino, E.G. Boos, Janusz Chwastowski, Yu.O. Shyrma, D. Lontkovskyi, M. Ruspa, Andrii Verbytskyi, I. Kadenko, Takuya Nobe, R. Ciesielski, Yu. Onishchuk, N. Z. Jomhari, Ian Brock, A. M. Cooper-Sarkar, B. Löhr, Marcin Pawel Guzik, U. Schneekloth, D.H. Saxon, G. Grzelak, N.S. Pokrovskiy, Matthew Wing, Yu. A. Golubkov, E. Paul, Ada Solano, Aleksander Filip Żarnecki, P. Roloff, M. Turcato, Allen Caldwell, I. A. Korzhavina, L. M. Shcheglova, S. Limentani, Claire Gwenlan, U. Klein, I. Makarenko, C.D. Catterall, Andrii Gizhko, Zainol Abidin Ibrahim, Achim Geiser, Aharon Levy, I. Singh, Y. Iga, S. Yamada, L. Stanco, N. H. Brook, F. Januschek, O. Kuprash, S. Antonelli, U. Karshon, K. Nagano, Peter Bussey, M. Lisovyi, W. A. T. Wan Abdullah, T. Tymieniecka, U. Kötz, V. Myronenko, T. Tsurugai, A. Kotański, R. J. Nowak, J. Sztuk-Dambietz, A. Stern, O. Hlushchenko, S. Kananov, A. Bruni, I. Abt, V. Aushev, W. Perlanski, K. Wichmann, M. Adamus, Enrico Tassi, B. Krupa, J. Tomaszewska, W. Hain, D. Hochman, Leszek Adamczyk, J. Ciborowski, O. Yu. Lukina, R. Shevchenko, A. Longhin, J. Malka, A. Polini, Halina Abramowicz, A. Bertolin, L. Zawiejski, P. Kaur, Masaki Ishitsuka, O. Turkot, S. Bhadra, D.S. Zotkin, B.O. Zhautykov, O. Shkola, Marcella Capua, N. Mohammad Nasir, Ingo Bloch, Mariusz Przybycien, M. Corradi, B. Foster, S. Dusini, L. K. Gladilin, and R. K. Dementiev
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Luminosity (scattering theory), ZEUS (particle detector), Photon, 010308 nuclear & particles physics, HERA, Deep inelastic scattering, 7. Clean energy, 01 natural sciences, Resonance (particle physics), Baryon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: A search for a narrow baryonic state in the p K S 0 and p ‾ K S 0 system has been performed in ep collisions at HERA with the ZEUS detector using an integrated luminosity of 358 pb − 1 taken in 2003–2007. The search was performed with deep inelastic scattering events at an ep centre-of-mass energy of 318 GeV for exchanged photon virtuality, Q 2 , between 20 and 100 GeV 2 . Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb − 1 taken in 1996–2000, no resonance peak was found in the p ( p ‾ ) K S 0 invariant-mass distribution in the range 1.45–1.7 GeV. Upper limits on the production cross section are set.
Published: 2016

13. Further studies of isolated photon production with a jet in deep inelastic scattering at HERA

Author: P. Stopa, Aleksander Filip Żarnecki, A. Bruni, O. Zenaiev, J. Sztuk-Dambietz, A. Stern, Marco Schioppa, N. H. Brook, O. Turkot, Enrico Tassi, B. Krupa, Robert Ciesielski, Masahiro Kuze, W. A. T. Wan Abdullah, Danuta Kisielewska, B. B. Levchenko, O. Hlushchenko, Anna Mastroberardino, G. Grzelak, T. Tsurugai, V. Aushev, Yuji Yamazaki, Claire Gwenlan, R. Brugnera, S. Kananov, V. Myronenko, Y. Aushev, M. Adamus, Elisabetta Gallo, Yu. Onishchuk, Yu.O. Shyrma, B. Löhr, Achim Geiser, Allen Caldwell, I. Abt, J. Ciborowski, Zainol Abidin Ibrahim, Leszek Adamczyk, T. Tymieniecka, I. Kadenko, W. Słomiński, Ulf Behrens, H. Kowalski, S. Antonelli, R.C.E. Devenish, Ada Solano, J. Malka, A. Polini, N. Stefaniuk, Olaf Behnke, W. Perlanski, N. Z. Jomhari, A. Bertolin, Katsuo Tokushuku, L. Zawiejski, A. M. Cooper-Sarkar, M. Turcato, N.S. Pokrovskiy, A. Kotański, Kunihiro Nagano, Yu. A. Golubkov, E. Paul, Janusz Chwastowski, L. M. Shcheglova, P. Kaur, L. Stanco, S. Yamada, R. Hori, Y. Iga, I. O. Skillicorn, Mykhailo Lisovyi, A. Garfagnini, J. Tomaszewska, D. Hochman, B. Foster, S. Dusini, P. J. Bussey, L. K. Gladilin, R. K. Dementiev, Matthew Wing, Masaki Ishitsuka, Marcella Capua, Ian Brock, D. H. Saxon, Andrii Verbytskyi, Marta Ruspa, Aharon Levy, A. Longhin, Uta Klein, O. Yu. Lukina, C. D. Catterall, O. Shkola, I. A. Korzhavina, Halina Abramowicz, Andrii Gizhko, U. Karshon, F. Mohamad Idris, Mariusz Przybycien, M. Corradi, B.O. Zhautykov, N. Mohammad Nasir, Oleg Kuprash, Ingo Bloch, K. Wichmann, Nataliia Kovalchuk, Robert Klanner, E. Lobodzinska, E. Lohrmann, Grzegorz Gach, Thomas Schörner-Sadenius, Marcin Pawel Guzik, U. Schneekloth, and R. Aggarwal
Subjects: perturbation theory [quantum chromodynamics], Nuclear and High Energy Physics, Photon, HERA, ZEUS, Lepton-Nucleon Scattering (experiments), Photon production, QCD, Astrophysics::High Energy Astrophysical Phenomena, high [transverse energy], HERA, Lepton-Nucleon Scattering (experiments), FOS: Physical sciences, Electron, transverse energy [photon], Photon energy, 7. Clean energy, 01 natural sciences, energy dependence, rapidity dependence, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), measured [differential cross section], 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, 010306 general physics, Nuclear Experiment, colliding beams [electron p], Quantum chromodynamics, Physics, 010308 nuclear & particles physics, Scattering, production [photon], energy [photon], ZEUS, Monte Carlo [numerical calculations], Deep inelastic scattering, higher-order [perturbation theory], DESY HERA Stor, Pseudorapidity, deep inelastic scattering [electron p], factorization [transverse momentum], lcsh:QC770-798, High Energy Physics::Experiment, 1 [higher-order], experimental results
Abstract: Isolated photons with high transverse energy have been studied in deep inelastic $ep$ scattering with the ZEUS detector at HERA, using an integrated luminosity of $326\,$ pb$^{-1}$ in the range of exchanged-photon virtuality $10 - 350$ GeV$^2$. Outgoing isolated photons with transverse energy $4, Comment: 34 pages, 9 figures
Published: 2017
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14. Studies of the diffractive photoproduction of isolated photons at HERA

Author: A. Bruni, Enrico Tassi, G. Grzelak, Claire Gwenlan, Marco Schioppa, Leszek Adamczyk, Masaki Ishitsuka, Yuji Yamazaki, Volodymyr Myronenko, Mykhailo Lisovyi, Uta Klein, P. Stopa, B. B. Levchenko, I. Abt, O. Yu. Lukina, J. Tomaszewska, A. Longhin, Robert Ciesielski, Allen Caldwell, Elisabetta Gallo, Yu. Onishchuk, Oleksii Turkot, Zainol Abidin Ibrahim, O. Behnke, T. Tymieniecka, Marcin Pawel Guzik, A. M. Cooper-Sarkar, I. A. Korzhavina, Shoichi Yamada, R.C.E. Devenish, T. Schörner-Sadenius, Yu. A. Golubkov, E. Paul, Achim Geiser, A. Kotański, Masahiro Kuze, I. Kadenko, J. Sztuk-Dambietz, Andrii Verbytskyi, Marta Ruspa, S. Antonelli, Andrii Gizhko, U. Karshon, Aharon Levy, Y. Iga, W. Perlanski, S. Kananov, V. Aushev, E. Lohrmann, M. Adamus, A. Garfagnini, Grzegorz Gach, Af Zarnecki, F. Mohamad Idris, W. Slominski, Ewelina Lobodzinska, N. Z. Jomhari, U. Schneekloth, R. Hori, B. Löhr, R. Brugnera, D. Hochman, Yu.O. Shyrma, N.S. Pokrovskiy, Ian Brock, L. M. Shcheglova, P. J. Bussey, Ada Solano, Nataliia Kovalchuk, B.O. Zhautykov, D. H. Saxon, B. Foster, S. Dusini, L. Stanco, A. Stern, N. Mohammad Nasir, Oleg Kuprash, L. K. Gladilin, O. Zenaiev, R. K. Dementiev, I. O. Skillicorn, Ingo Bloch, Nazar Stefaniuk, Anna Mastroberardino, N. H. Brook, Matthew Wing, Mariusz Przybycien, Danuta Kisielewska, M. Corradi, Ulf Behrens, H. Kowalski, K. Wichmann, W. A. T. Wan Abdullah, A. Bertolin, L. Zawiejski, M. Turcato, Kunihiro Nagano, P. Kaur, Katsuo Tokushuku, J. Malka, J. Ciborowski, Janusz Chwastowski, A. Polini, T. Tsurugai, Marcella Capua, Robert Klanner, C. D. Catterall, O. Shkola, B. Krupa, O. Hlushchenko, Halina Abramowicz, and Y. Aushev
Subjects: Photon, Physics and Astronomy (miscellaneous), diffraction, photon: photoproduction, transverse energy [photon], jet: transverse momentum, Jet (particle physics), transverse momentum [jet], 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pomeron, photoproduction [photon], electron p, Nuclear Experiment, Monte Carlo, HERA, ZEUS, QCD, Photoproduction, Diffraction, colliding beams [electron p], photon: transverse energy, Physics, Luminosity (scattering theory), longitudinal momentum, Monte Carlo [numerical calculations], HERA, DESY HERA Stor, electron p: colliding beams, Photoproduction, kinematics, Pseudorapidity, rapidity [jet], numerical calculations: Monte Carlo, Diffraction, photoproduction, electron p: deep inelastic scattering, Particle physics, pomeron: interaction, diffraction: dissociation, FOS: Physical sciences, differential cross section: measured, Nuclear physics, measured [differential cross section], 0103 physical sciences, ddc:530, 010306 general physics, ZEUS (particle detector), rapidity [photon], 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ZEUS, Deep inelastic scattering, QCD, rapidity, photon: rapidity, jet: rapidity, deep inelastic scattering [electron p], High Energy Physics::Experiment, dissociation [diffraction], interaction [pomeron], experimental results
Abstract: Physical review / D 96(3), 032006(2017). doi:10.1103/PhysRevD.96.032006, The photoproduction of isolated photons has been measured in diffractive events recorded by the ZEUS detector at HERA. Cross sections are evaluated in the photon transverse-energy and pseudorapidity ranges $5 < E_T < 15$ GeV and $-0.7 < \eta < 0.9,$ inclusively and also with a jet with transverse energy and pseudorapidity in the ranges $4 < E_{jet} < 35$ GeV and $-1.5 < \eta_{jet} < 1.8,$ using a total integrated electron-proton luminosity of 456 pb$^{-1}$. A number of kinematic variables were studied and compared to predictions from the Rapgap Monte Carlo model. An excess of data is observed above the Rapgap predictions for $z^{meas}_{Pomeron} > 0.9,$ where $z^{meas}_{Pomeron}$ is the fraction of the longitudinal momentum of the colourless 'Pomeron' exchange that is transferred to the photon-jet final state, giving evidence for direct Pomeron interactions., Published by Inst., Woodbury, NY
Published: 2017
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15. Production of Z0 bosons in elastic and quasi-elastic ep collisions at HERA

Author: P. Schleper, E. Lobodzinska, S. Fang, Sebastian Mergelmeyer, L. M. Shcheglova, R. Yoshida, W. H. Smith, Thomas Schörner-Sadenius, Y. Yamazaki, Mário Costa, A. Galas, Aleksander Filip Żarnecki, Katsuo Tokushuku, V.V. Sosnovtsev, I. I. Katkov, D. Gladkov, Yu. A. Golubkov, E. Paul, Nazar Bartosik, L. Stanco, R. Ingbir, Enrico Tassi, J. J. Whitmore, G. DʼAgostini, Alexander Spiridonov, I. A. Melzer-Pellmann, Janusz Chwastowski, J. M. Pawlak, D.D. Reeder, L. Suszycki, Allen Caldwell, B. Löhr, A. Garfagnini, Ramoona Shehzadi, Antonino Zichichi, Wojciech Slominski, A. Verbytskyi, T. Theedt, R. Hori, A. Eskreys, Marco Schioppa, S. Magill, P. G. Pelfer, F. Corriveau, G. Grzelak, Claire Gwenlan, S. Kitamura, Zainol Abidin Ibrahim, F. Januschek, U. Samson, Andrea Contin, O. Yu. Lukina, B. Reisert, F. Mohamad Idris, M. Derrick, T. Tymieniecka, Danuta Kisielewska, K. Nagano, Nazar Stefaniuk, S. De Pasquale, B. B. Levchenko, T. P. Stewart, Janna Katharina Behr, A. Longhin, P.M. Kooijman, A. Keramidas, Rosario Nania, U. Kötz, H. Stadie, A. Kotański, Iwona Grabowska-Bold, M. Jüngst, Ben Bylsma, M. Vázquez, G. Hartner, H. Hartmann, Claudia Glasman, V. Drugakov, Krzysztof Piotrzkowski, Marcella Capua, Kenneth Long, Ulf Behrens, Federico Cindolo, H. Kowalski, Achim Geiser, B.O. Zhautykov, Alexander Tapper, Rainer Mankel, N.N. Vlasov, A. Nigro, A. Antonov, J. Repond, W. B. Schmidke, J. Maeda, D. Szuba, R. J. Nowak, T. Namsoo, Leszek Adamczyk, N. Kondrashova, Lev Khein, Takuya Nobe, Alessia Bruni, M.I. Ferrero, D. Lontkovskyi, C. Youngman, Halina Abramowicz, V. Trusov, H.-P. Jakob, J. F. Martin, H.G.J.M. Tiecke, A. Parenti, I. Kadenko, M. Basile, T. Haas, John Hart, P. Stopa, G. Dolinska, J. D. Morris, A. Pellegrino, F. Karstens, Ozan Arslan, S. Kananov, I. Makarenko, M.C.K. Mattingly, L. S. Durkin, R. Brugnera, Juan Terron, Ada Solano, K. Papageorgiu, Y. Iga, P.F. Ermolov, O. Zabiegalov, Kerstin Borras, V. Bokhonov, O. Zenaiev, R. Hamatsu, O. Bachynska, Z. Ren, S. Limentani, Dong-Chul Son, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, I. O. Skillicorn, Els Koffeman, Matthew Wing, Masaki Ishitsuka, I. Rubinsky, M. Turcato, Alessandro Bertolin, James Ferrando, O. Kononenko, B. Brzozowska, B. Musgrave, V. Aushev, I. Gregor, I. Abt, E. Brownson, A. T. Doyle, A. Montanari, Anselmo Margotti, J. Grebenyuk, I. Singh, L.W. Wiggers, U. Klein, O. Turkot, P. Roloff, V. Sola, V. Libov, S. Miglioranzi, C. Blohm, N. Zhmak, Gy. Wolf, V. Monaco, D. Bot, K. Wichmann, M. Adamus, T. Kanno, G. Marini, B. A. Dolgoshein, W. Hain, Orel Gueta, S. Antonelli, Alexander Savin, Wolfram Dietrich Zeuner, A. Bamberger, Marta Ruspa, A.G. Robertson, Mariusz Przybycien, Ie. Korol, D. Notz, M. Corradi, O. Viazlo, D.S. Zotkin, Marcello Bindi, B. Pawlik, C. D. Catterall, T. W. Jones, N. Brümmer, T. Tsurugai, J. Szuba, A. N. Barakbaev, Ian Brock, Y. Ning, Sergei Chekanov, S. Yamada, A. Stern, K. Wrona, Dirk-Uwe Bartsch, J. Sztuk-Dambietz, B. Foster, K. Olkiewicz, Wolfgang Lohmann, S. Dusini, J. Schwartz, A. Lee, E. Hilger, H. Wolfe, G. Bari, Shima Shimizu, E.G. Boos, Graziano Bruni, I. A. Korzhavina, F. Sciulli, S. Bhadra, J. Y. Kim, U. Karshon, Pietro Antonioli, Luisa Cifarelli, L. K. Gladilin, Tomasz Bold, A. Hüttmann, D. H. Saxon, R. K. Dementiev, B.Y. Oh, D. Hochman, S. Schlenstedt, P. J. Bussey, M. Arneodo, P. Göttlicher, O. Kuprash, Jan Figiel, O. Behnke, S. Fazio, G. Grigorescu, M. Lisovyi, Roberto Sacchi, A.S. Proskuryakov, N.S. Pokrovskiy, Aharon Levy, Zukhaimira Zolkapli, F. Dal Corso, M. Wlasenko, R.C.E. Devenish, A. Gizhko, K. Mujkic, Hanno Perrey, R. Ciesielski, Elisabetta Gallo, Yu. Onishchuk, A.G. Yagües-Molina, J. Tomaszewska, J. Del Peso, W. Perlanski, G. F. Susinno, A. Raval, Fernando Barreiro, S.I. Suchkov, Didar Dobur, Y. Aushev, Lorenzo Bellagamba, N. Coppola, N. Okazaki, M. Kuze, Pawel Plucinski, E. Lohrmann, R. Klanner, Anna Mastroberardino, Amanda Cooper-Sarkar, Y.D. Ri, Grzegorz Gach, Kyrylo Bondarenko, T. Y. Ling, O. Gogota, Y. Eisenberg, R. Walczak, Giuseppe Barbagli, G. Sartorelli, Marcin Pawel Guzik, U. Schneekloth, R. Aggarwal, V. Schönberg, L. Zawiejski, P. Kaur, A. Stifutkin, B. Kahle, Roberto Carlin, J. Ciborowski, Manjit Kaur, J. Malka, Davide Boscherini, A. Polini, and I. Gialas
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, ZEUS (particle detector), Proton, 010308 nuclear & particles physics, Hadron, Elementary particle, HERA, 01 natural sciences, Standard Model, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The production of Z 0 bosons in the reaction ep→eZ 0 p (*) , where p (*) stands for a proton or a low-mass nucleon resonance, has been studied in ep collisions at HERA using the ZEUS detector. The analysis is based on a data sample collected between 1996 and 2007, amounting to 496pb -1 of integrated luminosity. The Z 0 was measured in the hadronic decay mode. The elasticity of the events was ensured by a cut on η max max is the maximum pseudorapidity of energy deposits in the calorimeter defined with respect to the proton beam direction. A signal was observed at the Z 0 mass. The cross section of the reaction ep→eZ 0 p (*) was measured to be σ(ep→eZ 0 p (*) )=0.13±0.06(stat.)±0.01(syst.) pb, in agreement with the Standard Model prediction of 0.16 pb. This is the first measurement of Z 0 production in ep collisions. © 2012 Elsevier B.V.
Published: 2013

16. Production of the excited charm mesons and at HERA

Author: M. Jüngst, Ben Bylsma, D. Szuba, Marco Schioppa, P. G. Pelfer, G. Hartner, Francois Corriveau, H. Hartmann, Claudia Glasman, Katsuo Tokushuku, V.V. Sosnovtsev, D. Gladkov, A. Kotański, B. B. Levchenko, V. Drugakov, Janusz Chwastowski, Takuya Nobe, J. Behr, Anna Mastroberardino, U. Klein, O. Turkot, S. Schlenstedt, J. F. Martin, A. Verbytskyi, Lev Khein, A. Bruni, Alexander Tapper, Antonino Zichichi, R. Hori, B. Brzozowska, Halina Abramowicz, S. Kananov, F. J. Sciulli, F. Dal Corso, A. Keramidas, Pawel Plucinski, Yuji Yamazaki, B.O. Zhautykov, Nazar Bartosik, Enrico Tassi, J. J. Whitmore, I. Kadenko, M. Wlasenko, J. Schwartz, G. Grzelak, Hartmut Stadie, Kenneth Long, A. Bertolin, A. Eskreys, Ie. Korol, L. M. Shcheglova, Claire Gwenlan, Y.D. Ri, S. Yamada, T. Namsoo, I. Gialas, A. Gizhko, G. Bari, F. Januschek, S. De Pasquale, S. Fang, J. Maeda, Giovanna Bruni, John Hart, D.D. Reeder, P.F. Ermolov, O. Yu. Lukina, B. Reisert, A. Longhin, Y. Eisenberg, Ramoona Shehzadi, R. Walczak, Alexander Spiridonov, I. A. Melzer-Pellmann, Michele Arneodo, Sebastian Mergelmeyer, R.C.E. Devenish, Ozan Arslan, A. Nigro, A.G. Yagües-Molina, L. Zawiejski, M. Turcato, Kunihiro Nagano, A. Pellegrino, M. Vázquez, W. Perlanski, G. F. Susinno, Andrea Contin, James Ferrando, J. Tomaszewska, I. Rubinsky, I. Gregor, O. Zabiegalov, Jose Repond, I. A. Korzhavina, O. Kuprash, M.C.K. Mattingly, Jan Figiel, G. Sartorelli, L. S. Durkin, B. Löhr, N. Okazaki, L. Stanco, R. Ingbir, J. Del Peso, Valentina Sola, A. Raval, John Morris, I. Abt, R. Hamatsu, O. Bachynska, B. Musgrave, E. Lobodzinska, Leszek Adamczyk, G. Grigorescu, L. Suszycki, P. Kaur, S. Magill, T. Theedt, Marcella Capua, Fernando Barreiro, Els Koffeman, S. Kitamura, M.I. Ferrero, A.G. Robertson, P. Stopa, A. E. Nuncio-Quiroz, V. Monaco, Mariusz Przybycien, F. Karstens, M. Corradi, O. Viazlo, S.I. Suchkov, Peter Schleper, Didar Dobur, W. A. T. Wan Abdullah, A. Montanari, K. Mujkic, J. Szuba, W. H. Smith, W. Hain, D. Bot, Rainer Mankel, N.N. Vlasov, A. Stifutkin, Y. Aushev, J. Sztuk-Dambietz, A. M. Cooper-Sarkar, O. Zenaiev, Thomas Schörner-Sadenius, D. Notz, D.S. Zotkin, C. D. Catterall, T. W. Jones, K. Olkiewicz, I. I. Katkov, K. Wichmann, M. Adamus, G. Marini, Mário Costa, Wolfram Dietrich Zeuner, Anselmo Margotti, Ada Solano, J. Grebenyuk, Y. Ning, Olaf Behnke, L.W. Wiggers, Yu. A. Golubkov, E. Paul, H. Wolfe, Kyrylo Bondarenko, T. Y. Ling, O. Gogota, A. Bamberger, V. Bokhonov, E. Hilger, F. Mohamad Idris, Marcello Bindi, B. Pawlik, H.G.J.M. Tiecke, A. Parenti, Robert Klanner, K. Wrona, N. Coppola, E.G. Boos, Hanno Perrey, U. Karshon, S. Bhadra, R. Ciesielski, Elisabetta Gallo, B. Foster, Nazar Stefaniuk, D. Boscherini, S. Limentani, Rosario Nania, S. Dusini, Yu. Onishchuk, V. Libov, Krzysztof Piotrzkowski, B.Y. Oh, N. Zhmak, Gy. Wolf, T. Kanno, J. Y. Kim, Pietro Antonioli, Luisa Cifarelli, Alexander Savin, I. Singh, L. K. Gladilin, R. K. Dementiev, N. Kondrashova, B. Kahle, N.S. Pokrovskiy, Zukhaimira Zolkapli, A. N. Barakbaev, Allen Caldwell, Giuseppe Barbagli, N. Brümmer, Roberto Carlin, T. Tsurugai, S. Miglioranzi, I. Makarenko, Y. Iga, Zainol Abidin Ibrahim, M. Derrick, T. Tymieniecka, U. Kötz, J. Ciborowski, Wolfgang Lohmann, R. J. Nowak, I. O. Skillicorn, Manjit Kaur, J. Malka, A. Polini, W. Słomiński, Ulf Behrens, Federico Cindolo, H. Kowalski, R. Yoshida, A. Stern, Matthew Wing, Zhongliang Ren, D. Lontkovskyi, V. Trusov, P. Roloff, J. M. Pawlak, V. Aushev, A. Garfagnini, W. B. Schmidke, U. Samson, Danuta Kisielewska, T. P. Stewart, G. Dolinska, K. Papageorgiu, D. Hochman, M. Basile, T. Haas, P. J. Bussey, S. Fazio, Roberto Sacchi, Aharon Levy, Sergei Chekanov, Dirk-Uwe Bartsch, Marcin Pawel Guzik, A. Lee, L. Bellagamba, A. Galas, Aleksander Filip Żarnecki, Ian Brock, U. Schneekloth, R. Aggarwal, A. Hüttmann, D. H. Saxon, P. Göttlicher, M. Kuze, E. Brownson, A. T. Doyle, E. Lohrmann, M. Ishitsuka, B. A. Dolgoshein, Orel Gueta, Marta Ruspa, Grzegorz Gach, V. Schönberg, Iwona Grabowska-Bold, A. Antonov, C. Youngman, H.-P. Jakob, R. Brugnera, Kerstin Borras, Dong-Chul Son, P.M. Kooijman, Achim Geiser, O. Kononenko, Juan Terron, C. Blohm, S. Antonelli, A.S. Proskuryakov, Shima Shimizu, Tomasz Bold, and G. DʼAgostini
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, HERA, 01 natural sciences, 7. Clean energy, Helicity, D-1, Charm quark, Nuclear physics, Excited state, 0103 physical sciences, Heavy quark effective theory, High Energy Physics::Experiment, 010306 general physics
Abstract: The production of the excited charm mesons D 1 (2420) and D2*(2460) in ep collisions has been measured with the ZEUS detector at HERA using an integrated luminosity of 373pb -1 . The masses of the neutral and charged states, the widths of the neutral states, and the helicity parameter of D 1 (2420) 0 were determined and compared with other measurements and with theoretical expectations. The measured helicity parameter of the D10 allows for some mixing of S- and D-waves in its decay to D *± π Π . The result is also consistent with a pure D-wave decay. Ratios of branching fractions of the two decay modes of the D2*(2460)0 and D2*(2460)± states were measured and compared with previous measurements. The fractions of charm quarks hadronising into D 1 and D2* were measured and are consistent with those obtained in e + e - annihilations. © 2012 Elsevier B.V.
Published: 2013

17. Production of exclusive dijets in diffractive deep inelastic scattering at HERA

Author: N. Zhmak, Gy. Wolf, B. B. Levchenko, Allen Caldwell, J. Szuba, Francois Corriveau, Zainol Abidin Ibrahim, T. Tymieniecka, Vladyslav Libov, R. Brugnera, Yuji Yamazaki, Sebastian Mergelmeyer, Ian Brock, A. Kotański, N. Kondrashova, U. Kötz, Yu.O. Shyrma, A. Trofymov, E. Lobodzinska, Ganna Dolinska, R. J. Nowak, D. H. Saxon, Kerstin Borras, Aleksander Filip Żarnecki, Katsuo Tokushuku, W. Słomiński, Ada Solano, Ulf Behrens, H. Kowalski, Masaki Ishitsuka, O. Kononenko, Thomas Schörner-Sadenius, S. Limentani, Janusz Chwastowski, D. Lontkovskyi, J. Ciborowski, Amanda Cooper-Sarkar, P. Stopa, Robert Klanner, V. Aushev, N. H. Brook, I. Singh, F. Mohamad Idris, Danuta Kisielewska, Marcin Pawel Guzik, J. Tomaszewska, K. Wichmann, M. Adamus, U. Schneekloth, R. Hori, I. Makarenko, O. Yu. Lukina, R. Shevchenko, Y. Iga, Manjit Kaur, I. Abt, Takuya Nobe, D. Notz, N. Zakharchuk, Marcella Capua, A. Longhin, E.G. Boos, O. Zenaiev, R. Ciesielski, Elisabetta Gallo, J. Malka, Roman Walczak, Aharon Levy, Mariusz Przybycien, N. Z. Jomhari, J. Grebenyuk, M. Corradi, O. Viazlo, M. Kuze, Yu. Onishchuk, D.S. Zotkin, C. D. Catterall, E. Lohrmann, B. Foster, I. O. Skillicorn, S. Dusini, D. Hochman, A. Stern, N.S. Pokrovskiy, Grzegorz Gach, Andrii Gizhko, Y. Aushev, L. K. Gladilin, Marco Schioppa, Nataliia Kovalchuk, Yu. A. Golubkov, E. Paul, R. K. Dementiev, J. Sztuk-Dambietz, W. Hain, O. Shkola, S. Kananov, U. Karshon, B. Löhr, Olaf Behnke, O. Kuprash, B.O. Zhautykov, O. Turkot, Jan Figiel, S. Yamada, A. Iudin, U. Klein, M. Lisovyi, Orel Gueta, B. Krupa, Matthew Wing, N. Mohammad Nasir, Andrii Verbytskyi, Marta Ruspa, A. Garfagnini, V. Myronenko, W. A. T. Wan Abdullah, I. Rubinsky, P. Roloff, Ingo Bloch, Achim Geiser, R.C.E. Devenish, N. Stefaniuk, W. Perlanski, I. Kadenko, T. Tsurugai, Ie. Korol, A. Bertolin, S. Antonelli, Peter Bussey, I. Gregor, L. Zawiejski, M. Turcato, W. B. Schmidke, I. A. Korzhavina, Kunihiro Nagano, L. M. Shcheglova, P. Kaur, D. Szuba, L. Stanco, Halina Abramowicz, A. Bruni, Enrico Tassi, G. Grzelak, F. Januschek, and Leszek Adamczyk
Subjects: Physics, Antiparticle, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Elementary particle, HERA, Inelastic scattering, Deep inelastic scattering, 01 natural sciences, Nuclear physics, Pair production, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Engineering (miscellaneous)
Abstract: Production of exclusive dijets in diffractive deep inelastic $$e^\pm p$$ scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 372 pb $$^{-1}$$ . The measurement was performed for $$\gamma ^{*}$$ –p centre-of-mass energies in the range $$90< W < {250}\,{\mathrm{GeV}}$$ and for photon virtualities $$Q^2 > {25}\,{\mathrm{GeV}^{2}}$$ . Energy flows around the jet axis are presented. The cross section is presented as a function of $$\beta $$ and $$\phi $$ , where $$\beta =x/x_\mathrm{I\!P}$$ , x is the Bjorken variable and $$x_\mathrm{I\!P}$$ is the proton fractional longitudinal momentum loss. The angle $$\phi $$ is defined by the $$\gamma ^{*}$$ –dijet plane and the $$\gamma ^{*}$$ – $$e^\pm $$ plane in the rest frame of the diffractive final state. The $$\phi $$ cross section is measured in bins of $$\beta $$ . The results are compared to predictions from models based on different assumptions about the nature of the diffractive exchange.
Published: 2016

18. Measurement of the t dependence in exclusive photoproduction of ϒ(1S) mesons at HERA

Author: R. Yoshida, G. DʼAgostini, Claudia Glasman, V. Drugakov, Takuya Nobe, C. Zhou, Yuji Yamazaki, Lev Khein, J. M. Pawlak, Marco Schioppa, P. G. Pelfer, S. Kananov, A. Garfagnini, J. Behr, A. Bruni, U. Samson, B.O. Zhautykov, Kenneth Long, G. Bari, J. Maeda, Giovanna Bruni, Enrico Tassi, J. J. Whitmore, N. Brümmer, Hanno Perrey, F. Mohamad Idris, Katsuo Tokushuku, V.V. Sosnovtsev, D. Gladkov, Janusz Chwastowski, T. Tsurugai, A. Verbytskyi, O. Gogota, R. Ciesielski, Elisabetta Gallo, U. Klein, Yu. Onishchuk, A. M. Cooper-Sarkar, A. Pellegrino, Rosario Nania, Wolfgang Lohmann, U. Noor, I. I. Katkov, W. B. Schmidke, V. Aushev, M. Basile, Pawel Plucinski, O. Tomalak, T. Haas, S. Fang, Sebastian Mergelmeyer, Yu. A. Golubkov, F. J. Sciulli, John Hart, M.C.K. Mattingly, L. S. Durkin, E. Paul, Ie. Korol, P.M. Kooijman, R. Hamatsu, O. Bachynska, Achim Geiser, L. M. Shcheglova, K. Papageorgiu, Els Koffeman, Krzysztof Piotrzkowski, I. Abt, Peter Schleper, O. Kuprash, Jan Figiel, T. Theedt, K. Oliver, Marcello Bindi, B. Pawlik, D. Hochman, Ada Solano, M. Adamus, I. A. Korzhavina, Juan Terron, I. Rubinsky, Giuseppe Barbagli, Y.D. Ri, V. Bokhonov, S. Schlenstedt, P. J. Bussey, G. Marini, A. N. Barakbaev, Alexander Spiridonov, I. A. Melzer-Pellmann, Wolfram Dietrich Zeuner, A. Bamberger, N. Bartosik, L. Stanco, R. Ingbir, E. Hilger, O. Yu. Lukina, B. Reisert, S. Fazio, Leszek Adamczyk, R.C.E. Devenish, Roberto Sacchi, Hartmut Stadie, Danuta Kisielewska, U. Karshon, V. Monaco, T. P. Stewart, I. Makarenko, D.D. Reeder, W. Hain, M.I. Ferrero, A. Stern, G. Grigorescu, M. Lisovyi, S. Limentani, D. Boscherini, P.F. Ermolov, A. Eskreys, S. Antonelli, Anna Mastroberardino, I. O. Skillicorn, Y. Eisenberg, I. Gialas, Aharon Levy, M. Zolko, S. Bhadra, Ramoona Shehzadi, B.Y. Oh, Sergei Chekanov, Matthew Forrest, A.G. Robertson, A. Longhin, F. Karstens, Dirk-Uwe Bartsch, Mariusz Przybycien, M. Corradi, R. Walczak, Antonino Zichichi, Jose Repond, A. Nigro, A. Lee, L. Bellagamba, N.S. Pokrovskiy, W. Słomiński, J. Schwartz, Ulf Behrens, Federico Cindolo, H. Kowalski, Zukhaimira Zolkapli, G. Grzelak, E. Lobodzinska, Valentina Sola, K. Mujkic, P. Stopa, I. Singh, M. Vázquez, D. Lontkovskyi, L. Suszycki, R. Hori, G. Dolinska, Claire Gwenlan, Ian Brock, F. Januschek, Allen Caldwell, O. Zenaiev, A. Galas, A. Salii, Aleksander Filip Żarnecki, James Ferrando, K. Horton, S. De Pasquale, Andrea Contin, W. H. Smith, Zainol Abidin Ibrahim, Anselmo Margotti, M. Derrick, J. Grebenyuk, L.W. Wiggers, H.G.J.M. Tiecke, A. Parenti, I. Gregor, T. Tymieniecka, A.S. Proskuryakov, Thomas Schörner-Sadenius, U. Kötz, Mário Costa, A. Hüttmann, D. H. Saxon, I. Kadenko, Edouard Boos, Y. Ning, Matthew Wing, P. Göttlicher, F. Dal Corso, G. Sartorelli, R. J. Nowak, P. Roloff, Francois Corriveau, S. Magill, A. Kotański, O. Volynets, T. Namsoo, Shima Shimizu, V. Libov, E. Brownson, Tomasz Bold, N. Zhmak, A. T. Doyle, Alexander Tapper, Gy. Wolf, T. Kanno, B. A. Dolgoshein, Orel Gueta, Alexander Savin, Marta Ruspa, J. Szuba, M. Wlasenko, A. E. Nuncio-Quiroz, B. Löhr, D. Notz, S. Kitamura, D.S. Zotkin, C. D. Catterall, T. W. Jones, S. Yamada, W. A. T. Wan Abdullah, A. Montanari, D. Bot, M. Jüngst, Ben Bylsma, D. Szuba, G. Hartner, H. Hartmann, Halina Abramowicz, Michele Arneodo, Kyrylo Bondarenko, T. Y. Ling, W. Perlanski, G. F. Susinno, Robert Klanner, K. Olkiewicz, N. Okazaki, Marcella Capua, H. Wolfe, John Morris, Rainer Mankel, N.N. Vlasov, K. Wrona, B. Foster, S. Dusini, J. Y. Kim, Pietro Antonioli, Luisa Cifarelli, L. K. Gladilin, R. K. Dementiev, H.-P. Jakob, R. Brugnera, Kerstin Borras, Dong-Chul Son, Y. Aushev, Masaki Ishitsuka, C. Blohm, Fernando Barreiro, S.I. Suchkov, Didar Dobur, S. Miglioranzi, Iwona Grabowska-Bold, A. Antonov, Olaf Behnke, C. Youngman, N. Coppola, A.G. Yagües-Molina, J. Tomaszewska, J. Del Peso, A. Raval, B. B. Levchenko, J. F. Martin, B. Brzozowska, O. Viazlo, J. Sztuk-Dambietz, M. Kuze, E. Lohrmann, Grzegorz Gach, B. Kahle, Roberto Carlin, A. Keramidas, A. Bertolin, L. Zawiejski, M. Turcato, Kunihiro Nagano, V. Schönberg, B. Musgrave, P. Kaur, A. Stifutkin, J. Ciborowski, Manjit Kaur, Marcin Pawel Guzik, U. Schneekloth, R. Aggarwal, Y. Iga, J. Malka, A. Polini, and Zhongliang Ren
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Proton, Meson, 010308 nuclear & particles physics, Hadron, Elementary particle, HERA, 01 natural sciences, 7. Clean energy, Particle identification, Baryon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The exclusive photoproduction reaction γ p → ϒ ( 1 S ) p has been studied with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 468 pb − 1 . The measurement covers the kinematic range 60 W 220 GeV and Q 2 1 GeV 2 , where W is the photon–proton centre-of-mass energy and Q 2 is the photon virtuality. The exponential slope, b, of the t dependence of the cross section, where t is the squared four-momentum transfer at the proton vertex, has been measured, yielding b = 4.3 − 1.3 + 2.0 ( stat . ) − 0.6 + 0.5 ( syst . ) GeV − 2 . This constitutes the first measurement of the t dependence of the γ p → ϒ ( 1 S ) p cross section.
Published: 2012

19. Combination of measurements of inclusive deep inelastic e±p scattering cross sections and QCD analysis of HERA data: H1 and ZEUS Collaborations

Author: R.C.E. Devenish, G. Grzelak, Jenny List, D. Ozerov, Claire Gwenlan, Marina Rotaru, F. Januschek, Richard Polifka, Fabian Zomer, J. Szuba, N. Stefaniuk, P. Stopa, S. Ghazaryan, Pavel A. Belov, Philipp Henkenjohann, Hannes Jung, O. Zenaiev, Aharon Levy, J. Grebenyuk, Robert Klanner, L. M. Shcheglova, H. U. Martyn, Matthias Klein, L. Stanco, I. Kadenko, Ie. Korol, Roland Horisberger, A. Valkárová, Sebastian Mergelmeyer, R. Žlebčík, O. Kononenko, F. Mohamad Idris, P. E. Reimer, Alan Campbell, N. Kondrashova, I. A. Korzhavina, W. Perlanski, Karel Cerny, Roman Kogler, Danuta Kisielewska, A. Behrendt Dubak, D. Salek, Peter Robmann, R. Brugnera, Yu.O. Shyrma, N. Zakharchuk, Kerstin Borras, S. Schmitt, B. B. Levchenko, Andrii Gizhko, P. Roloff, M. Kapichine, B. Foster, S. Dusini, T. Tsurugai, C. Niebuhr, Yu. A. Golubkov, E. Paul, K. Wichmann, M. Adamus, A.S. Belousov, C. Pascaud, C. Vallée, A. Lebedev, U. Karshon, Sergey Rusakov, P. Truöl, Grzegorz Nowak, R. Shevchenko, A. Longhin, B. Stella, V. Dodonov, L. K. Gladilin, R. K. Dementiev, J. G. Contreras, Orel Gueta, Andrii Verbytskyi, Mariusz Przybycien, M. Corradi, O. Viazlo, B. Tseepeldorj, S. Egli, G. Gach, A. Bruni, V. Andreev, Marta Ruspa, E.G. Boos, M. Jacquet, N. Z. Jomhari, M. Steder, Andreas Meyer, Vladyslav Libov, Marco Schioppa, J. Ciborowski, Y. Aushev, Y. Soloviev, V. Spaskov, A. M. Fomenko, W. B. Schmidke, J. Hladkỳ, Enrico Tassi, Laurent Schoeffel, Murrough Landon, W. A. T. Wan Abdullah, Katerina Lipka, Masaki Ishitsuka, Paul Laycock, E. Malinovski, O. Shkola, Emmanuelle Perez, R. C. W. Henderson, J. E. Olsson, Ian Brock, W. Słomiński, Ulf Behrens, H. Kowalski, Elisabetta Gallo, D. Lontkovskyi, M. Fleischer, R. Walczak, Emmanuel Sauvan, D. Notz, G. Grindhammer, D. Britzger, Yu. Onishchuk, Voica Radescu, A. Trofymov, Dirk L. Hoffmann, Christoph Grab, J. Turnau, K. Begzsuren, S. Yamada, D.S. Zotkin, T. Greenshaw, C. D. Catterall, J. Cvach, Manjit Kaur, E. Elsen, Laurent Favart, Natasa Raicevic, Vincent Boudry, A. Grebenyuk, J. Katzy, J. Feltesse, D. H. Saxon, Wolfgang Lange, I. Abt, I. Tsakov, N. Zhmak, A. Specka, A. Nikiforov, David M. South, Uta Klein, Nataliia Kovalchuk, B. Krupa, H. Pirumov, P. Sopicki, Stephen Maxfield, Dave Sankey, A. N. Morozov, Leszek Adamczyk, Ganna Dolinska, V. Brisson, J. Ferencei, J. Malka, Y. Vazdik, Cristinel Diaconu, A. Baghdasaryan, S. Kananov, A. Rostovtsev, D. Szuba, A. Garfagnini, P. Van Mechelen, Gy. Wolf, N.S. Pokrovskiy, Allen Caldwell, W. Hain, P. D. Thompson, N. Gogitidze, T. Ravdandorj, Claus Kleinwort, Amanda Cooper-Sarkar, E. Rizvi, G. D. Patel, Biljana Antunović, Federico Alberto Ceccopieri, J. Gayler, B.O. Zhautykov, Takuya Nobe, Katsuo Tokushuku, Zainol Abidin Ibrahim, P. Kostka, E. Lobodzinska, D. Wegener, T. Tymieniecka, D. Krücker, O. Yu. Lukina, Tomas Sykora, M. Sauter, Yuji Yamazaki, V. Myronenko, U. Kötz, Halina Abramowicz, M. Kuze, D. Haidt, A. Bylinkin, I. Rubinsky, E. Lohrmann, Aleksander Filip Żarnecki, H. J. Meyer, A. Bertolin, Thomas Schörner-Sadenius, Janusz Chwastowski, Ingo Bloch, R. J. Nowak, A. Buniatyan, S. Mikocki, L. Zawiejski, M. Turcato, Z. P. Zhang, E. Wünsch, I. Gregor, K. Daum, R. Roosen, Kunihiro Nagano, K. B. Cantun Avila, C. Kiesling, K. Müller, Monica Dobre, I. Picuric, P. Kaur, Guenter Eckerlin, J. Sztuk-Dambietz, André Schöning, Th. Naumann, O. Turkot, P. Pahl, E. Gabathuler, R. Hori, I. Makarenko, L. Goerlich, N. H. Brook, D. Traynor, Ankita Mehta, Daniel Pitzl, Y. Iga, O. Kuprash, Jan Figiel, S. Levonian, I. O. Skillicorn, A. Iudin, M. Lisovyi, F. Sefkow, Marcin Pawel Guzik, U. Schneekloth, Jan Kretzschmar, D. Hochman, P. J. Bussey, R. Ciesielski, J-P. Meyer, Olaf Behnke, Maxime Gouzevitch, Matthew Wing, J. B. Dainton, Gerhard Brandt, J. Tomaszewska, Xavier Janssen, A. Petrukhin, Benno List, Katja Krüger, A. Stern, A. V. Fedotov, Paul Newman, Achim Geiser, U. Straumann, L. Bystritskaya, V. Aushev, S. Antonelli, N. Muhammad Nasir, H. Zohrabyan, V. Chekelian, B. Löhr, B. Lobodzinski, Ada Solano, S. Limentani, I. Singh, B. Pokorny, Francois Corriveau, A. Kotański, J. Žáček, F. Huber, S. Shushkevich, Marcella Capua, and Tomas Hreus
Subjects: Quantum chromodynamics, Physics, Particle physics, Physics and Astronomy (miscellaneous), Engineering (miscellaneous), High Energy Physics::Phenomenology, Order (ring theory), Parton, HERA, Inelastic scattering, Deep inelastic scattering, Nuclear physics, Distribution function, Production (computer science), High Energy Physics::Experiment
Abstract: A combination is presented of all inclusive deep inelastic cross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current $e^{\pm}p$ scattering for zero beam polarisation. The data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an electron beam energy of 27.5 GeV. The data correspond to an integrated luminosity of about 1 fb$^{-1}$ and span six orders of magnitude in negative four-momentum-transfer squared, $Q^2$, and Bjorken $x$. The correlations of the systematic uncertainties were evaluated and taken into account for the combination. The combined cross sections were input to QCD analyses at leading order, next-to-leading order and at next-to-next-to-leading order, providing a new set of parton distribution functions, called HERAPDF2.0. In addition to the experimental uncertainties, model and parameterisation uncertainties were assessed for these parton distribution functions. Variants of HERAPDF2.0 with an alternative gluon parameterisation, HERAPDF2.0AG, and using fixed-flavour-number schemes, HERAPDF2.0FF, are presented. The analysis was extended by including HERA data on charm and jet production, resulting in the variant HERAPDF2.0Jets. The inclusion of jet-production cross sections made a simultaneous determination of these parton distributions and the strong coupling constant possible, resulting in $\alpha_s(M_Z)=0.1183 \pm 0.0009 {\rm(exp)} \pm 0.0005{\rm (model/parameterisation)} \pm 0.0012{\rm (hadronisation)} ^{+0.0037}_{-0.0030}{\rm (scale)}$. An extraction of $xF_3^{\gamma Z}$ and results on electroweak unification and scaling violations are also presented.
Published: 2015

20. Combination of differential D∗± cross-section measurements in deep-inelastic ep scattering at HERA

Author: C. Vallée, A. Lebedev, A. Bruni, W. B. Schmidke, R.C.E. Devenish, F. Mohamad Idris, D. P. C. Sankey, N. Muhammad Nasir, Andrii Gizhko, N. Kondrashova, Enrico Tassi, P. E. Reimer, P. Roloff, M. Kapichine, Alan Campbell, U. Karshon, D. Notz, I. Kadenko, N. Stefaniuk, L. M. Shcheglova, Ie. Korol, D.S. Zotkin, I. A. Korzhavina, H. U. Martyn, Y. Soloviev, V. Andreev, B. B. Levchenko, J. Szuba, Takuya Nobe, P. D. Thompson, K. Daum, David M. South, J. Cvach, Uta Klein, J. Feltesse, L. Stanco, V. Chekelian, A. V. Fedotov, A. Baghdasaryan, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, Nataliia Kovalchuk, A. Rostovtsev, Fabian Zomer, R. Hori, I. Makarenko, Y. Iga, O. Shkola, B. Löhr, Wolfgang Lange, P. Stopa, D. Wegener, Leszek Adamczyk, B. Krupa, V. Dodonov, Max Klein, D. Traynor, I. O. Skillicorn, J. Gayler, Robert Ciesielski, I. Abt, Tomas Sykora, M. Sauter, E.G. Boos, Karel Cerny, M. Jacquet, E. Rizvi, G. D. Patel, B. Lobodzinski, Yuji Yamazaki, Laurent Schoeffel, O. Yu. Lukina, A. Longhin, Masaki Ishitsuka, Elisabetta Gallo, Yu. Onishchuk, W. Słomiński, Ulf Behrens, H. Kowalski, Roman Kogler, Grzegorz Nowak, S. Egli, L. Bystritskaya, M. Steder, A. Garfagnini, D. Lontkovskyi, Andreas Meyer, A. Grebenyuk, H. J. Meyer, W. Hain, Ada Solano, G. Grzelak, Jenny List, E. Lobodzinska, N. Z. Jomhari, Peter Robmann, M. Fleischer, H. Zohrabyan, Emmanuelle Perez, D. Britzger, M. P. J. Landon, P. Van Mechelen, Dirk L. Hoffmann, Marina Rotaru, F. Januschek, Peter Bussey, Voica Radescu, Christoph Grab, A. Trofymov, Thomas Schörner-Sadenius, W. A. T. Wan Abdullah, N.S. Pokrovskiy, I. Gregor, S. Limentani, R. Shevchenko, S. Kananov, Benno List, O. Kononenko, S. Mikocki, Jean-Arcady Meyer, Z. P. Zhang, D. Ozerov, Paul Newman, Achim Geiser, R. Brugnera, Yu.O. Shyrma, Kerstin Borras, Katja Krüger, R. C. W. Henderson, K. Müller, Sebastian Mergelmeyer, I. Singh, T. Tsurugai, C. Niebuhr, B. Tseepeldorj, A. Stern, R. Žlebčík, Stephen Maxfield, V. Aushev, Andreas Werner Jung, U. Straumann, S. Antonelli, Y. Aushev, D. Szuba, Andrew Mehta, K. Wichmann, M. Adamus, Richard Polifka, B. Pokorny, N. Gogitidze, Katerina Lipka, P. Sopicki, A.S. Belousov, E. Elsen, S. Ghazaryan, Sergey Rusakov, Ganna Dolinska, P. Truöl, A. Specka, V. Brisson, Jan Hladky, V. Myronenko, Allen Caldwell, Federico Alberto Ceccopieri, Francois Corriveau, A. Kotański, B. Foster, Zainol Abidin Ibrahim, P. Kostka, T. Greenshaw, S. Dusini, O. Kuprash, Cristinel Diaconu, T. Tymieniecka, Halina Abramowicz, Robert Klanner, A. Iudin, Jan Figiel, U. Kötz, J. Tomaszewska, Katsuo Tokushuku, L. K. Gladilin, R. K. Dementiev, J. Žáček, M. Lisovyi, F. Huber, J. E. Olsson, A. M. Cooper-Sarkar, R. J. Nowak, J. Ferencei, Yu. A. Golubkov, E. Paul, S. Shushkevich, Marcella Capua, Tomas Hreus, N. Zhmak, Gy. Wolf, Janusz Chwastowski, T. Ravdandorj, R. Roosen, Claus Kleinwort, Natasa Raicevic, Monica Dobre, Vincent Boudry, M. Kuze, A. N. Morozov, Mariusz Przybycien, M. Corradi, O. Viazlo, S. Schmitt, E. Lohrmann, Gerhard Brandt, V. Spaskov, E. Wünsch, Grzegorz Gach, B.O. Zhautykov, Daniel Pitzl, Marcin Pawel Guzik, U. Schneekloth, Jan Kretzschmar, A. Bertolin, A. Buniatyan, I. Rubinsky, Ingo Bloch, Roland Horisberger, L. Zawiejski, A. Valkárová, W. Perlanski, M. Turcato, Kunihiro Nagano, K. B. Cantun Avila, Xavier Janssen, A. Petrukhin, J. Turnau, C. Kiesling, K. Begzsuren, S. Yamada, I. Tsakov, P. Kaur, Olaf Behnke, Alexander Bylinkin, J. Ciborowski, Manjit Kaur, J. Malka, Roman Walczak, Y. Vazdik, J. Sztuk-Dambietz, Th. Naumann, O. Turkot, P. Pahl, E. Gabathuler, M. Gouzevitch, D. Salek, J. G. Contreras, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, Aharon Levy, Vladyslav Libov, C.D. Catterall, Ian Brock, Laurent Favart, D. H. Saxon, S. Levonian, F. Sefkow, D. Haidt, Aleksander Filip Żarnecki, I. Picuric, Guenter Eckerlin, André Schöning, L. Goerlich, N. H. Brook, Danuta Kisielewska, R. Plačakytė, A. M. Fomenko, N. Zakharchuk, Marco Schioppa, H. Pirumov, D. Hochman, Hannes Jung, O. Zenaiev, J. Grebenyuk, Matthew Wing, J. B. Dainton, C. Pascaud, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), H1, ZEUS, H1 Collaboration, and ZEUS Collaboration
Subjects: electron, Particle physics, Nuclear and High Energy Physics, Meson, Lepton-Nucleon Scattering, HERA, heavy quark production, FOS: Physical sciences, transverse momentum, meson, High Energy Physics - Experiment, Nuclear physics, Cross section (physics), High Energy Physics - Experiment (hep-ex), phase space, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, quantum chromodynamics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, ddc:530, Nuclear Experiment, QCD, Heavy quark production, Charm physics, charm physics, Physics, Quantum chromodynamics, ZEUS (particle detector), Scattering, ZEUS, H1, scattering, photon, lepton-nucleon scattering, DESY HERA Stor, rapidity, kinematics, Pseudorapidity, correlation, deep inelastic scattering [electron p], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: H1 and ZEUS have published single-differential cross sections for inclusive D ∗±-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase-space region of photon virtuality Q 2 > 5 GeV2, electron inelasticity 0.02 < y < 0.7 and the D ∗± meson’s transverse momentum p T(D ∗) > 1.5 GeV and pseudorapidity |η(D ∗)| < 1.5. The combination procedure takes into account all correlations, yielding significantly reduced experimental uncertainties. Double-differential cross sections d2 σ/dQ 2dy are combined with earlier D ∗± data, extending the kinematic range down to Q 2 > 1.5 GeV2. Perturbative next-to-leading-order QCD predictions are compared to the results., Journal of High Energy Physics, 2015 (9), ISSN:1126-6708, ISSN:1029-8479
Published: 2015

21. Measurement of charm fragmentation fractions in photoproduction at HERA

Author: Allen Caldwell, Zainol Abidin Ibrahim, M. Derrick, H.-P. Jakob, T. Tymieniecka, A. Parenti, U. Kötz, F. Mohamad Idris, R. Brugnera, R. Yoshida, R. J. Nowak, Kerstin Borras, A. Zichichi, D. Notz, A.G. Yagües-Molina, Ada Solano, J. M. Pawlak, A. Trofymov, K. Mujkic, D.S. Zotkin, R. Hori, Dong-Chul Son, C. D. Catterall, E. Hilger, S. Limentani, E.G. Boos, Takuya Nobe, A. Garfagnini, Krzysztof Piotrzkowski, O. Kononenko, Leszek Adamczyk, Alexander Spiridonov, I. A. Melzer-Pellmann, S. Fazio, Roberto Sacchi, Alessia Bruni, B.Y. Oh, R. Shevchenko, A. Longhin, Tobias M. Haas, U. Samson, C. Blohm, I. Singh, M.I. Ferrero, Aharon Levy, Fernando Barreiro, S. De Pasquale, F. Karstens, F. J. Sciulli, P.F. Ermolov, N.S. Pokrovskiy, A. Nigro, Mykhailo Lisovyi, A. T. Doyle, J. Sztuk-Dambietz, Zukhaimira Zolkapli, S.I. Suchkov, D.D. Reeder, F. Dal Corso, R.C.E. Devenish, O. Turkot, Kenneth Long, Ramoona Shehzadi, Massimo Corradi, I. Gialas, B. Kahle, G. Bari, Roberto Carlin, Didar Dobur, Rosario Nania, Denys Lontkovskyi, Francois Corriveau, L. Cifarelli, Jose Repond, James Ferrando, J. Maeda, B.O. Zhautykov, A. Kotański, Y. Aushev, Alessandro Montanari, Alexander Tapper, S. Magill, Marcello Bindi, B. Pawlik, W. H. Smith, Ganna Dolinska, Ozan Arslan, N. Kovalchuk, Nazar Bartosik, Enrico Tassi, John Hart, Mário Costa, J. J. Whitmore, J. Malka, M. Jüngst, Ben Bylsma, D. Szuba, G. Hartner, Y. Ning, N. Brümmer, Katsuo Tokushuku, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, D. Bot, A. Pellegrino, M.C.K. Mattingly, L. S. Durkin, Ewelina Lobodzinska, T. Tsurugai, J. Schwartz, Robert Ciesielski, G. Grzelak, H. Hartmann, Valentina Sola, A. N. Barakbaev, V. Bokhonov, Giuseppe Barbagli, I. Makarenko, M. Wlasenko, Andrii Gizhko, Janusz Chwastowski, U. Karshon, Oleg Kuprash, Masahiro Kuze, U. Schneekloth, Lorenzo Bellagamba, Claudia Glasman, T. Schörner-Sadenius, Y. Iga, K. Olkiewicz, R. Hamatsu, O. Bachynska, Els Koffeman, Peter Schleper, Claire Gwenlan, P. Göttlicher, Iwona Grabowska-Bold, B. B. Levchenko, F. Januschek, S. Kitamura, H. Wolfe, O. Behnke, I. O. Skillicorn, N. Coppola, I. Rubinsky, Andrea Contin, Vladyslav Libov, R. Mankel, Wolfgang Lohmann, G. Susinno, L. Suszycki, V. Drugakov, J. Szuba, K. Wichmann, M. Adamus, G. Marini, Wolfram Dietrich Zeuner, E. Lohrmann, A. Bamberger, Halina Abramowicz, A. Stern, A.S. Proskuryakov, J. F. Martin, Lev Khein, Graziano Bruni, L. M. Shcheglova, Hartmut Stadie, Ian Brock, Grzegorz Gach, Uta Klein, D. Gladkov, T. W. Jones, Jan Figiel, S. Yamada, Yu. A. Golubkov, E. Paul, S. Kananov, Guenter Wolf, H.G.J.M. Tiecke, I. Kadenko, A. Iudin, G. Grigorescu, Marcella Capua, L. Stanco, R. Ingbir, Shinichi Shimizu, A.G. Robertson, N. Vlasov, B. Brzozowska, P. Stopa, Mariusz Przybycien, O. Viazlo, O. Yu. Lukina, B. Reisert, Tomasz Bold, A. Hüttmann, D. H. Saxon, Yuji Yamazaki, Igor Katkov, P.M. Kooijman, Achim Geiser, J. Tomaszewska, V. Myronenko, V. Sosnovtsev, S. Fang, Sebastian Mergelmeyer, Nazar Stefaniuk, Anselmo Margotti, J. Grebenyuk, L.W. Wiggers, Juan Terron, Marco Schioppa, P. G. Pelfer, Marcin Pawel Guzik, W. Słomiński, Ulf Behrens, Federico Cindolo, H. Kowalski, Hanno Perrey, S. Antonelli, V. Trusov, R. Aggarwal, Ingrid-Maria Gregor, Anna Mastroberardino, Ie. Korol, O. Gogota, Elisabetta Gallo, Amanda Cooper-Sarkar, Yu. Onishchuk, T. Theedt, I. A. Korzhavina, V. Schönberg, N. Kondrashova, W. B. Schmidke, O. Zenaiev, E. Brownson, Michele Arneodo, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, K. Papageorgiu, W. Perlanski, S. Bhadra, N. Okazaki, Masaki Ishitsuka, John Morris, Peter Bussey, B. Löhr, K. Wrona, B. Foster, S. Dusini, J. Y. Kim, Pietro Antonioli, R. K. Dementiev, A. Eskreys, Janna Katharina Behr, M. Vázquez, N. Zhmak, Pawel Plucinski, T. Namsoo, J. Del Peso, G. D'Agostini, T. Y. Ling, V. Aushev, Robert Klanner, Y. Eisenberg, I. Abt, Sergei Chekanov, Boris Dolgoshein, Dirk-Uwe Bartsch, Y. D. Ri, A. Lee, V. Monaco, M. Basile, G. Sartorelli, W. Hain, S. Miglioranzi, A. Raval, Danuta Kisielewska, D. Hochman, S. Schlenstedt, T. P. Stewart, C. Youngman, O. Shkola, Alessandro Polini, N. Zakharchuk, Philipp Roloff, J. Ciborowski, Alexey Antonov, Manjit Kaur, Leonid Gladilin, Roman Walczak, Davide Boscherini, Matthew Wing, Zhongliang Ren, A. Keramidas, A. Bertolin, A. Galas, Aleksander Filip Żarnecki, L. Zawiejski, M. Turcato, Kunihiro Nagano, B. Musgrave, P. Kaur, A. Stifutkin, T. Kanno, Alexander Savin, H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A.N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bold, E.G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P.J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C.D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A.M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. D’Agostini, F. Dal Corso, J. Peso, R.K. Dementiev, S. Pasquale, M. Derrick, R.C.E. Devenish, D. Dobur, B.A. Dolgoshein, G. Dolinska, A.T. Doyle, V. Drugakov, L.S. Durkin, S. Dusini, Y. Eisenberg, P.F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M.I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L.K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu.A. Golubkov, P. Göttlicher, I. Grabowska-Bold, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J.C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z.A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, A. Iudin, H.-P. Jakob, F. Januschek, T.W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I.I. Katkov, M. Kaur, P. Kaur, A. Keramida, L.A. Khein, J.Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I.A. Korzhavina, A. Kotanski, U. Kötz, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B.B. Levchenko, A. Levy, V. Libov, S. Limentani, T.Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K.R. Long, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J.F. Martin, A. Mastroberardino, M.C.K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J.D. Morri, K. Mujkic, B. Musgrave, V. Myronenko, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R.J. Nowak, A.E. Nuncio-Quiroz, B.Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J.M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, W. Perlanski, H. Perrey, K. Piotrzkowski, P. Plucinski, N.S. Pokrovskiy, A. Polini, A.S. Proskuryakov, M. Przybycien, A. Raval, D.D. Reeder, B. Reisert, Z. Ren, J. Repond, Y.D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A.A. Savin, D.H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W.B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L.M. Shcheglova, R. Shehzadi, R. Shevchenko, S. Shimizu, O. Shkola, I. Singh, I.O. Skillicorn, W. Slominski, W.H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T.P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A.D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, A. Trofymov, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N.N. Vlasov, R. Walczak, W.A.T. Wan Abdullah, J.J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A.G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, N. Zakharchuk, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B.O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, D.S. Zotkin, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Antiparticle, Particle physics, Meson, Hadron, Nuclear Theory, Lepton-Nucleon Scattering, HERA, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, lepton-nucleon scattering, charm physics, qcd, Charm quark, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), QCD, Charm physics, High Energy Physics, ZEUS Collaboration, 0103 physical sciences, ddc:530, Rapidity, 010306 general physics, Nuclear Experiment, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Pseudorapidity, High Energy Physics::Experiment
Abstract: The production of D^0, D^*+, D^+, D_s+ and Lambda_c^+ charm hadrons and their antiparticles in ep scattering at HERA has been studied with the ZEUS detector, using a total integrated luminosity of 372 pb^-1. The fractions of charm quarks hadronising into a particular charm hadron were derived. In addition, the ratio of neutral to charged D-meson production rates, the fraction of charged D mesons produced in a vector state, and the stangeness-suppression factor have been determined. The measurements have been performed in the photoproduction regime. The charm hadrons were reconstructed in the range of transverse momentum p_T >3.8 GeV and pseudorapidity |eta, 27 pages, 6 figures
Published: 2013

22. Measurement of D*± production in deep inelastic scattering at HERA

Author: B. B. Levchenko, J. F. Martin, D. Gladkov, Guenter Wolf, B. Brzozowska, S. Bhadra, F. Dal Corso, Ewelina Lobodzinska, Andrii Gizhko, U. Karshon, U. Schneekloth, D. Boscherini, G. Susinno, M. Wlasenko, Af Zarnecki, E. Hilger, A.G. Robertson, Mariusz Przybycien, M. Corradi, O. Viazlo, Hanno Perrey, Katsuo Tokushuku, S. Fang, J. Ciborowski, Sebastian Mergelmeyer, S. Kitamura, H.-P. Jakob, I. Gialas, E.G. Boos, I. Abt, N. Kondrashova, Elisabetta Gallo, Yu. Onishchuk, F. J. Sciulli, M. Jüngst, Ben Bylsma, D. Szuba, Janusz Chwastowski, Francois Corriveau, V. Monaco, B.Y. Oh, L. Cifarelli, R. Brugnera, Kerstin Borras, T. Namsoo, Takuya Nobe, A. Longhin, A.G. Yagües-Molina, Dong-Chul Son, Manjit Kaur, A. Kotański, W. Hain, A. M. Cooper-Sarkar, G. Hartner, I. M. Gregor, Roman Walczak, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, T. Theedt, O. Kononenko, Alexander Tapper, S. De Pasquale, N.S. Pokrovskiy, Zukhaimira Zolkapli, A. Polini, H. Hartmann, Tobias M. Haas, D. Bot, Shoichi Yamada, M. Basile, R.C.E. Devenish, W. H. Smith, G. D'Agostini, P. Stopa, A. Nigro, Masaki Ishitsuka, Y. Ning, Anselmo Margotti, J. Grebenyuk, L.W. Wiggers, T. Schörner-Sadenius, J. Del Peso, K. Olkiewicz, W. B. Schmidke, Mykhailo Lisovyi, Zhongliang Ren, Halina Abramowicz, Allen Caldwell, Zainol Abidin Ibrahim, T. Tymieniecka, T. Y. Ling, O. Gogota, Robert Klanner, Ada Solano, V. Bokhonov, A. Parenti, U. Kötz, B. Löhr, C. Blohm, K. Papageorgiu, A. Eskreys, J. Sztuk-Dambietz, N. Brümmer, F. Mohamad Idris, H. Wolfe, R. Hori, K. Wrona, B. Foster, Hartmut Stadie, Kenneth Long, Yu. A. Golubkov, E. Paul, Fernando Barreiro, Iwona Grabowska-Bold, S. Miglioranzi, A. Raval, Danuta Kisielewska, S. Limentani, A. Antonov, S. Dusini, Michele Arneodo, R. J. Nowak, T. P. Stewart, T. Tsurugai, G. Bari, Marcello Bindi, B. Pawlik, C. Youngman, S.I. Suchkov, A. N. Barakbaev, R. Mankel, Wolfgang Lohmann, Pawel Plucinski, I. Singh, O. Turkot, Janna Katharina Behr, A. Zichichi, J. Maeda, Alexander Spiridonov, I. A. Melzer-Pellmann, W. Perlanski, J. Y. Kim, Pietro Antonioli, Giovanna Bruni, Uta Klein, A. Stern, D. Notz, L. K. Gladilin, R. K. Dementiev, Krzysztof Piotrzkowski, P. Göttlicher, A. Pellegrino, Didar Dobur, M.C.K. Mattingly, L. S. Durkin, M. Vázquez, V. Sosnovtsev, N. Zakharchuk, Ganna Dolinska, J. Repond, B. Kahle, N. Okazaki, Roberto Carlin, J. Malka, D.S. Zotkin, C. D. Catterall, T. W. Jones, Ozan Arslan, R. Hamatsu, Y. Aushev, O. Bachynska, Alessandro Montanari, Philipp Roloff, Marco Schioppa, Els Koffeman, John Morris, Ulf Behrens, P. G. Pelfer, Andrea Contin, Federico Cindolo, H. Kowalski, N. Kovalchuk, Valentina Sola, A. Keramidas, Peter Schleper, V. Aushev, A. Bertolin, Y. Eisenberg, L. Suszycki, O. Yu. Lukina, B. Reisert, V. Trusov, Marcella Capua, L. Zawiejski, K. Wichmann, M. Turcato, N. Coppola, Anna Mastroberardino, Kunihiro Nagano, Y. D. Ri, M. Adamus, G. Marini, N.N. Vlasov, Peter Bussey, S. Magill, P. Kaur, Wolfram Dietrich Zeuner, A. Bamberger, P.F. Ermolov, A. Galas, G. Sartorelli, Jan Figiel, Yuji Yamazaki, A. Stifutkin, Igor Katkov, A. Iudin, J. Tomaszewska, G. Grigorescu, L. M. Shcheglova, James Ferrando, L. Stanco, R. Ingbir, Nazar Stefaniuk, R. Yoshida, Claudia Glasman, V. Drugakov, Lev Khein, S. Kananov, B.O. Zhautykov, Marco Costa, John Hart, Oleg Kuprash, I. Rubinsky, A. Trofymov, J. M. Pawlak, K. Mujkic, A. Garfagnini, U. Samson, Rosario Nania, Giuseppe Barbagli, I. Makarenko, Y. Iga, I. O. Skillicorn, Marcin Pawel Guzik, R. Aggarwal, J. Schwartz, G. Grzelak, M. Kuze, E. Lohrmann, Grzegorz Gach, E. Brownson, A. T. Doyle, Claire Gwenlan, Matthew Wing, B. A. Dolgoshein, W. Slominski, F. Januschek, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, S. Fazio, Roberto Sacchi, Leszek Adamczyk, Aharon Levy, V. Schönberg, Vladyslav Libov, D. Hochman, S. Schlenstedt, O. Zenaiev, Ian Brock, Sergei Chekanov, Dirk-Uwe Bartsch, A. Hüttmann, D. H. Saxon, A. Lee, L. Bellagamba, Tomasz Bold, Denys Lontkovskyi, A. Bruni, Robert Ciesielski, O. Behnke, Nazar Bartosik, Enrico Tassi, J. J. Whitmore, J. Szuba, A.S. Proskuryakov, M. Derrick, P.M. Kooijman, Achim Geiser, Juan Terron, B. Musgrave, S. Antonelli, M.I. Ferrero, F. Karstens, H.G.J.M. Tiecke, I. Kadenko, Shinichi Shimizu, Ie. Korol, I. A. Korzhavina, N. Zhmak, T. Kanno, Alexander Savin, D.D. Reeder, Ramoona Shehzadi, UAM. Departamento de Física Teórica, Zeus (IHEF, IoP, FNWI), H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bold, E. G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P. J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C. D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. D’Agostini, F. Dal Corso, J. Peso, R. K. Dementiev, S. Pasquale, M. Derrick, R. C. E. Devenish, D. Dobur, B. A. Dolgoshein, G. Dolinska, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, Y. Eisenberg, P. F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M. I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu. A. Golubkov, P. Göttlicher, I. Grabowska-Bold, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J. C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, A. Iudin, H.-P. Jakob, F. Januschek, T. W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I. I. Katkov, M. Kaur, P. Kaur, A. Keramida, L. A. Khein, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I. A. Korzhavina, A. Kotanski, U. Kötz, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B. B. Levchenko, A. Levy, V. Libov, S. Limentani, T. Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K. R. Long, A. Longhin, D. Lontkovskyi, O. Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J. F. Martin, A. Mastroberardino, M. C. K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J. D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R. J. Nowak, A. E. Nuncio-Quiroz, B. Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J. M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, W. Perlanski, H. Perrey, K. Piotrzkowski, P. Plucinski, N. S. Pokrovskiy, A. Polini, A. S. Proskuryakov, M. Przybycien, A. Raval, D. D. Reeder, B. Reisert, Z. Ren, J. Repond, Y. D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L. M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I. O. Skillicorn, W. Slominski, W. H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T. P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A. D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, A. Trofymov, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N. N. Vlasov, R. Walczak, W. A. T. Wan Abdullah, J. J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, N. Zakharchuk, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B. O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, and D. S. Zotkin
Subjects: Particle physics, Nuclear and High Energy Physics, Meson, Lepton-Nucleon Scattering, Nuclear Theory, HERA, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, 0103 physical sciences, ddc:530, Charm (quantum number), 010306 general physics, Nuclear Experiment, charm physics, Charm physics, Quantum chromodynamics, Physics, Luminosity (scattering theory), ZEUS (particle detector), 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Física, lepton-nucleon scattering, Deep inelastic scattering, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The production of $D^{*\pm}$ mesons in deep inelastic $ep$ scattering has been measured for exchanged photon virtualities $ 5, Comment: new version with errors fixed in tables 7,9,10 and figures 9,10
Published: 2013

23. Measurement of D ± production in deep inelastic ep scattering with the ZEUS detector at HERA

Author: F. Mohamad Idris, D.D. Reeder, J. Ciborowski, Tobias M. Haas, Ramoona Shehzadi, B. Löhr, Krzysztof Piotrzkowski, K. Wrona, Manjit Kaur, Shoichi Yamada, R.C.E. Devenish, T. Schörner-Sadenius, V. Schönberg, B. Foster, Alexander Spiridonov, S. Dusini, O. Zenaiev, I. A. Melzer-Pellmann, P. Göttlicher, V. Sosnovtsev, Ewelina Lobodzinska, J. Y. Kim, A.G. Robertson, Mariusz Przybycien, M. Corradi, O. Viazlo, R. Yoshida, Fernando Barreiro, A. Eskreys, A. Polini, M. Kuze, E. Lohrmann, M. Ishitsuka, Valentina Sola, L. Suszycki, Marco Schioppa, Pietro Antonioli, U. Schneekloth, Denys Lontkovskyi, Zhongliang Ren, L. K. Gladilin, R. K. Dementiev, Grzegorz Gach, W. Slominski, A. Longhin, Claudia Glasman, V. Drugakov, P. G. Pelfer, S.I. Suchkov, Janna Katharina Behr, F. Dal Corso, A. Bruni, I. Gialas, Nazar Bartosik, S. Kitamura, S. Fazio, Roberto Sacchi, J. M. Pawlak, Lev Khein, M. Basile, J. Sztuk-Dambietz, Didar Dobur, Enrico Tassi, J. J. Whitmore, L. Cifarelli, N. Kondrashova, S. Kananov, M. Vázquez, J. Szuba, Kenneth Long, Aharon Levy, K. Mujkic, A. Garfagnini, Francois Corriveau, A. M. Cooper-Sarkar, Takuya Nobe, D. Hochman, H.G.J.M. Tiecke, A. Kotański, I. Kadenko, M. Derrick, Y. Aushev, G. Bari, A. Nigro, Shinichi Shimizu, Hanno Perrey, Yu. A. Golubkov, E. Paul, Leszek Adamczyk, M. Wlasenko, Af Zarnecki, U. Samson, Elisabetta Gallo, Yu. Onishchuk, J. Maeda, Giovanna Bruni, B. Kahle, W. H. Smith, R. Hori, S. Schlenstedt, Mário Costa, Y. Ning, P. J. Bussey, F. J. Sciulli, Roberto Carlin, Marcin Pawel Guzik, R. Aggarwal, Ganna Dolinska, Alexander Tapper, Ozan Arslan, Rosario Nania, Vladyslav Libov, S. Fang, Sebastian Mergelmeyer, S. Miglioranzi, A. Raval, Danuta Kisielewska, T. P. Stewart, C. Youngman, Pawel Plucinski, Andrii Gizhko, U. Karshon, N. Zhmak, T. Kanno, Alexander Savin, M.I. Ferrero, F. Karstens, Yuji Yamazaki, A. Keramidas, D. Boscherini, Katsuo Tokushuku, Igor Katkov, G. Susinno, Ian Brock, A. Bertolin, J. Schwartz, J. Tomaszewska, O. Turkot, Ada Solano, V. Bokhonov, G. Grzelak, T. Theedt, S. Limentani, N. Zakharchuk, Philipp Roloff, L. Zawiejski, Janusz Chwastowski, Hartmut Stadie, M. Turcato, Claire Gwenlan, F. Januschek, Giuseppe Barbagli, I. Makarenko, A. Hüttmann, Matthew Wing, Kunihiro Nagano, I. Singh, D. H. Saxon, I. Abt, A. Galas, J. Malka, S. Magill, Anna Mastroberardino, Andrea Contin, Uta Klein, P. Kaur, S. Bhadra, I. O. Skillicorn, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, A. Trofymov, V. Monaco, A. Stifutkin, T. Namsoo, Ie. Korol, B.O. Zhautykov, D. Bot, W. Hain, John Hart, Oleg Kuprash, I. Rubinsky, Marcella Capua, Sergei Chekanov, Dirk-Uwe Bartsch, K. Olkiewicz, Michele Arneodo, Y. Iga, A. Lee, L. Bellagamba, H. Wolfe, B. B. Levchenko, N.N. Vlasov, W. Perlanski, J. F. Martin, E. Brownson, I. A. Korzhavina, A. T. Doyle, N. Okazaki, D. Gladkov, G. D'Agostini, John Morris, Guenter Wolf, B. Brzozowska, T. Y. Ling, Iwona Grabowska-Bold, O. Gogota, A. Antonov, B. A. Dolgoshein, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, H.-P. Jakob, R. Brugnera, Kerstin Borras, Dong-Chul Son, P. Stopa, O. Kononenko, Robert Klanner, C. Blohm, Jan Figiel, Y. Eisenberg, R. Walczak, A. Iudin, L. M. Shcheglova, G. Grigorescu, M. Lisovyi, Anselmo Margotti, J. Grebenyuk, L.W. Wiggers, Y. D. Ri, G. Sartorelli, L. Stanco, R. Ingbir, Nazar Stefaniuk, Ulf Behrens, Federico Cindolo, H. Kowalski, V. Trusov, N. Brümmer, T. Tsurugai, R. Mankel, Wolfgang Lohmann, O. Yu. Lukina, B. Reisert, Alessandro Montanari, N. Kovalchuk, N. Coppola, A.G. Yagües-Molina, J. Del Peso, W. B. Schmidke, E. Hilger, E.G. Boos, K. Papageorgiu, B.Y. Oh, Marcello Bindi, B. Pawlik, S. De Pasquale, A. N. Barakbaev, N.S. Pokrovskiy, Zukhaimira Zolkapli, Allen Caldwell, A. Stern, Zainol Abidin Ibrahim, T. Tymieniecka, J. Repond, A. Parenti, U. Kötz, R. J. Nowak, A. Pellegrino, M.C.K. Mattingly, L. S. Durkin, R. Hamatsu, O. Bachynska, Els Koffeman, Peter Schleper, V. Aushev, K. Wichmann, M. Adamus, G. Marini, Wolfram Dietrich Zeuner, A. Bamberger, A. Zichichi, D. Notz, D.S. Zotkin, C. D. Catterall, T. W. Jones, M. Jüngst, Ben Bylsma, D. Szuba, G. Hartner, I. M. Gregor, H. Hartmann, Halina Abramowicz, P.F. Ermolov, James Ferrando, P.M. Kooijman, Achim Geiser, Juan Terron, B. Musgrave, S. Antonelli, Tomasz Bold, Robert Ciesielski, O. Behnke, A.S. Proskuryakov, Zeus (IHEF, IoP, FNWI), H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bold, E. G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P. J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C. D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. D’Agostini, F. Dal Corso, J. Peso, R. K. Dementiev, S. Pasquale, M. Derrick, R. C. E. Devenish, D. Dobur, B. A. Dolgoshein, G. Dolinska, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, Y. Eisenberg, P. F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M. I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu. A. Golubkov, P. Göttlicher, I. Grabowska-Bold, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J. C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, A. Iudin, H.-P. Jakob, F. Januschek, T. W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I. I. Katkov, M. Kaur, P. Kaur, A. Keramida, L. A. Khein, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I. A. Korzhavina, A. Kotanski, U. Kötz, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B. B. Levchenko, A. Levy, V. Libov, S. Limentani, T. Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K. R. Long, A. Longhin, D. Lontkovskyi, O. Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J. F. Martin, A. Mastroberardino, M. C. K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J. D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R. J. Nowak, A. E. Nuncio-Quiroz, B. Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J. M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, W. Perlanski, H. Perrey, K. Piotrzkowski, P. Plucinski, N. S. Pokrovskiy, A. Polini, A. S. Proskuryakov, M. Przybycien, A. Raval, D. D. Reeder, B. Reisert, Z. Ren, J. Repond, Y. D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L. M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I. O. Skillicorn, W. Slominski, W. H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T. P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A. D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, A. Trofymov, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N. N. Vlasov, R. Walczak, W. A. T. Wan Abdullah, J. J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, N. Zakharchuk, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B. O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, and D. S. Zotkin
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, Meson, Lepton-Nucleon Scattering, HERA, 01 natural sciences, Charm quark, Nuclear physics, High Energy Physics, ZEUS Collaboration, 0103 physical sciences, ddc:530, 010306 general physics, Nuclear Experiment, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Scattering, heavy quark production, lepton-nucleon scattering, High Energy Physics::Phenomenology, Strangeness production, Pseudorapidity, High Energy Physics::Experiment
Abstract: Charm production in deep inelastic ep scattering was measured with the ZEUS detector using an integrated luminosity of 354 pb−1. Charm quarks were identified by reconstructing D ± mesons in the D ± → K ∓π±π± decay channel. Lifetime information was used to reduce combinatorial background substantially. Differential cross sections were measured in the kinematic region 5 < Q 2 < 1000 GeV2, 0.02 < y < 0.7, 1.5 < p T (D ±) < 15 GeV and |η(D ±)| < 1.6, where Q 2 is the photon virtuality, y is the inelasticity, and p T (D ±) and η(D ±) are the transverse momentum and the pseudorapidity of the D ± meson, respectively. Next-to-leading-order QCD predictions are compared to the data. The charm contribution, $ F_2^{{c\overline{c}}} $ , to the proton structure-function F 2 was extracted.
Published: 2013

24. Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA

Author: Olaf Behnke, E. Brownson, H. Perrey, T. Tsurugai, C. Niebuhr, K. H. Hiller, R. C. W. Henderson, Alexander Spiridonov, I. A. Melzer-Pellmann, C. Pascaud, N. Coppola, F. Huber, Wolfgang Lohmann, Z. Ren, Grzegorz Nowak, A. Dossanov, B. Musgrave, A. Galas, P. Truoel, D. Haidt, Roland Horisberger, Michele Arneodo, A. Valkárová, E. Elsen, Hans-Christian Schultz-Coulon, Andrea Contin, A. Lebedev, W. Perlanski, G. F. Susinno, N. Okazaki, John Morris, Fabian Zomer, Kenneth Long, A. Longhin, K. Lipka, Takuya Nobe, M. Pandurovic, B. B. Levchenko, Karel Cerny, A. Huettmann, Anna Mastroberardino, I. Picuric, M. Juengst, G. Bari, A. Specka, S. Schlenstedt, Amanda Cooper-Sarkar, Valentina Sola, Alexander Bylinkin, J. Maeda, H.-P. Jakob, Giovanna Bruni, J. Cvach, L. M. Shcheglova, S. Egli, A. Nigro, D. Wegener, R. Brugnera, L. Suszycki, Guenter Eckerlin, L. Goerlich, P. Stopa, S. Shushkevich, Marcella Capua, A. Bruni, Paul Laycock, E. Malinovski, Emmanuel Sauvan, H. U. Martyn, F. Dal Corso, Matthias Klein, Tomas Hreus, Kerstin Borras, Roman Kogler, A. Petrukhin, P. Kostka, Dong-Chul Son, E. Wuensch, M. Wlasenko, Z. Zolkapli, V. Brisson, Ozan Arslan, B. Pokorny, Af Zarnecki, J. Turnau, Eram Rizvi, K. Begzsuren, S. Yamada, E. Hilger, Hannes Jung, Gerhard Brandt, I. Tsakov, A. Gizhko, O. Kononenko, J. Behr, T. H. Tran, R.C.E. Devenish, O. Zenaiev, L. Stanco, R. Zlebcik, R. Ingbir, P.F. Ermolov, A.S. Proskuryakov, Anselmo Margotti, G. Grindhammer, B. Brzozowska, E.G. Boos, J. Tomaszewska, J. Zacek, Katsuo Tokushuku, V.V. Sosnovtsev, J. Del Peso, Marcello Bindi, B. Pawlik, Xavier Janssen, C. Blohm, M. C. K. Mattingly, B. Stella, Marco Schioppa, P. G. Pelfer, Rosario Nania, S. Habib, A. N. Barakbaev, Benno List, P. D. Thompson, M. Fleischer, M. Dobre, Nazar Bartosik, V. Dodonov, Enrico Tassi, J. J. Whitmore, M. Kuze, J. Grebenyuk, L.W. Wiggers, D. Gladkov, M. Kapichine, K. Mujkic, M. Kraemer, Richard Polifka, U. Karshon, O. Zabiegalov, F. Moreau, Voica Radescu, E. Lohrmann, T. P. Stewart, D. Boscherini, Janusz Chwastowski, A. Kotański, M. Jacquet, Pawel Plucinski, A. Raval, J. Ciborowski, K. Daum, James Ferrando, I. Gregor, Nazar Stefaniuk, Yuji Yamazaki, Christoph Grab, Grzegorz Gach, Zhen Zhang, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Fernando Barreiro, S.I. Suchkov, A. Verbytskyi, Ricardo Lopez-Fernandez, J. Szuba, A. Glazov, M. Brinkmann, S. Bhadra, Iwona Grabowska-Bold, B. Y. Oh, Emmanuelle Perez, Tomas Sykora, M. Sauter, R. Hori, I. Bozovic-Jelisavcic, M. Basile, Manjit Kaur, J. Malka, Roman Walczak, Y. Vazdik, F. J. Sciulli, Alexander Tapper, V. Lubimov, W. Słomiński, A. Antonov, Ulf Behrens, Federico Cindolo, H. Kowalski, H. J. Meyer, S. Magill, S. Levonian, T. Haas, B. Lobodzinski, Didar Dobur, Thomas Schoerner-Sadenius, J. Schwartz, A. Lee, M. Steder, Stephen Maxfield, S. De Pasquale, A. Polini, D. Lontkovskyi, Ie. Korol, Giuseppe Barbagli, V. Trusov, N.S. Pokrovskiy, Daniel Pitzl, Andreas Meyer, A. G. Yaguees-Molina, D. Szuba, I. Makarenko, Y. Iga, D. Hoffmann, Vladimir Palichik, C. Youngman, Andrew Mehta, U. Klein, O. Turkot, Y.D. Ri, Leif J. Jönsson, Y. Aushev, G. Hartner, N. Gogitidze, H. Hartmann, K. Nowak, Hartmut Stadie, T. Namsoo, Bogdan Povh, F. Sefkow, Z. Staykova, J. E. Olsson, S. Mikocki, Y. Eisenberg, I. O. Skillicorn, H. Henschel, Ada Solano, V. Bokhonov, S. Limentani, Allen Caldwell, Federico Alberto Ceccopieri, A. V. Fedotov, Zainol Abidin Ibrahim, David M. South, U. Koetz, Ramoona Shehzadi, A. Keramidas, I. A. Korzhavina, A. Baghdasaryan, Danuta Kisielewska, S. Schmitt, Adrian Stern, Claudia Glasman, A. Bertolin, A. Rostovtsev, T. Tymieniecka, V. Drugakov, Malte Hildebrandt, Shima Shimizu, R. Yoshida, Marcin Pawel Guzik, A. W. Jung, K. Mueller, I. I. Katkov, U. Schneekloth, Jan Kretzschmar, J. Zálešák, O. Gogota, R. Ciesielski, Elisabetta Gallo, Yu. Onishchuk, Halina Abramowicz, Laurent Schoeffel, R. Aggarwal, J. F. Martin, V. Spaskov, Y. Ning, Yu. A. Golubkov, E. Paul, G. Herrera, Tomasz Bold, Lev Khein, I. Singh, M. Turcato, J. Gayler, Murrough Landon, A. M. Fomenko, A. Zichichi, G. Grzelak, Jenny List, J. M. Pawlak, I. R. Kenyon, Kunihiro Nagano, K. B. Cantun Avila, V. Schoenberg, H.G.J.M. Tiecke, A. Parenti, D. Notz, D. J. Fischer, S. Kananov, Andre Schoening, I. Kadenko, Natasa Raicevic, B. Reisert, B. Tseepeldorj, D.S. Zotkin, T. W. Jones, C. D. Catterall, C. Kiesling, J. C. Hart, O. Kuprash, Jan Figiel, A. Garfagnini, L. Bystritskaya, G. Sartorelli, Vincent Boudry, P. Kaur, T. Greenshaw, R. J. Nowak, A. Bunyatyan, A. N. Morozov, S. Fang, Sebastian Mergelmeyer, G. Grigorescu, M. Lisovyi, Paul Newman, P.M. Kooijman, U. Samson, P. Van Mechelen, V. Libov, A. Stifutkin, R. Placakyte, H. Zohrabyan, J. Ferencei, A. Pellegrino, N. Zhmak, Peter Bussey, J. Sztuk-Dambietz, D. Salek, Gy. Wolf, T. Kanno, Achim Geiser, T. Ravdandorj, Claus Kleinwort, Alexander Savin, C. Diaconu, A. E. Nuncio-Quiroz, Claire Gwenlan, Marina Rotaru, D. Ozerov, H. Wolfe, L. S. Durkin, R. Hamatsu, W. A. T. Wan Abdullah, Ben Bylsma, Juan Terron, A. T. Doyle, V. Chekelian, P. Pahl, F. Januschek, T. Theedt, M. Derrick, O. Bachynska, Els Koffeman, E. Gabathuler, J. G. Contreras, B. A. Dolgoshein, W. B. Schmidke, U. Straumann, Orel Gueta, Marta Ruspa, S. Kitamura, G. D'Agostini, S. Ghazaryan, Thomas Naumann, V. Lendermann, D. D. Reeder, B. Kahle, S. Antonelli, Kyrylo Bondarenko, T. Y. Ling, Roberto Carlin, Ian Brock, Pavel A. Belov, Robert Klanner, G. Dolinska, Gabriel Stoicea, Peter Schleper, V. Aushev, M. Gouzevitch, E. Hennekemper, K. Papageorgiu, K. Wichmann, M. Adamus, G. Marini, Laurent Favart, F. Mohamad Idris, D. H. Saxon, Wolfram Dietrich Zeuner, A. Bamberger, A.S. Belousov, Sergey Rusakov, S. Fazio, Roberto Sacchi, Aharon Levy, W. Bartel, Dave Sankey, Rainer Mankel, N.N. Vlasov, Leszek Adamczyk, J. Delvax, N. Kondrashova, V. Andreev, M.I. Ferrero, G. D. Patel, Masaki Ishitsuka, B. Loehr, P. Goettlicher, D. Britzger, S. Miglioranzi, F. Karstens, P. E. Reimer, K. Wrona, B. Foster, Alan Campbell, S. Dusini, N. Bruemmer, J. Y. Kim, Y. Soloviev, C. Vallee, Pietro Antonioli, L. K. Gladilin, R. K. Dementiev, Krzysztof Piotrzkowski, K. Krueger, M. Herbst, I. Gialas, L. Cifarelli, E. Lobodzinska, A. Grebenyuk, Mário Costa, Wolfgang Lange, I. Abt, H. Pirumov, V. Monaco, W. Hain, A. Eskreys, S. Baghdasaryan, Jan Hladky, M. Vázquez, Peter Robmann, F. Corriveau, Olga Lukina, Juraj Bracinik, Matthew Wing, J. Repond, J. B. Dainton, P. Roloff, W. H. Smith, Sergei Chekanov, Dirk-Uwe Bartsch, I. Milcewicz-Mika, J. V. Morris, L. Bellagamba, J. Feltesse, A.G. Robertson, Mariusz Przybycien, M. Corradi, O. Viazlo, Calin Alexa, D. Traynor, D. Hochman, P. Sopicki, B.O. Zhautykov, I. Rubinsky, R. Felst, D.K. Nikitin, A. Montanari, D. Bot, G. Laštovička-Medin, K. Olkiewicz, J-P. Meyer, Zeus (IHEF, IoP, FNWI), ZEUS Collaboration (ukupan broj autora: 486), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), H1, ZEUS, H1 Collaboration, ZEUS Collaboration, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, C. Alexa, V. Andreev, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Baghdasaryan, S. Baghdasaryan, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, W. Bartel, N. Bartosik, D. Bartsch, M. Basile, K. Begzsuren, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Belousov, P. Belov, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, K. Bondarenko, E. G. Boo, K. Borra, D. Boscherini, D. Bot, V. Boudry, I. Bozovic-Jelisavcic, T. Bołd, N. Brümmer, J. Bracinik, G. Brandt, M. Brinkmann, V. Brisson, D. Britzger, I. Brock, E. Brownson, R. Brugnera, A. Bruni, G. Bruni, B. Brzozowska, A. Bunyatyan, P. J. Bussey, A. Bylinkin, B. Bylsma, L. Bystritskaya, A. Caldwell, A. J. Campbell, K. B. Cantun Avila, M. Capua, R. Carlin, C. D. Catterall, F. Ceccopieri, K. Cerny, S. Chekanov, V. Chekelian, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, J. G. Contrera, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, J. Cvach, G. D’Agostini, J. B. Dainton, F. Dal Corso, K. Daum, J. Delvax, R. K. Dementiev, M. Derrick, R. C. E. Devenish, S. Pasquale, E. A. Wolf, J. Peso, C. Diaconu, M. Dobre, D. Dobur, V. Dodonov, B. A. Dolgoshein, G. Dolinska, A. Dossanov, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, G. Eckerlin, S. Egli, Y. Eisenberg, E. Elsen, P. F. Ermolov, A. Eskrey, S. Fang, L. Favart, S. Fazio, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, J. Ferrando, M. I. Ferrero, J. Figiel, D.-J. Fischer, M. Fleischer, A. Fomenko, B. Foster, E. Gabathuler, G. Gach, A. Gala, E. Gallo, A. Garfagnini, J. Gayler, A. Geiser, S. Ghazaryan, I. Giala, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, A. Glazov, L. Goerlich, N. Gogitidze, O. Gogota, Y. A. Golubkov, P. Göttlicher, M. Gouzevitch, C. Grab, I. Grabowska-Bołd, A. Grebenyuk, J. Grebenyuk, T. Greenshaw, I. Gregor, G. Grigorescu, G. Grindhammer, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, A. Hüttmann, T. Haa, S. Habib, D. Haidt, W. Hain, R. Hamatsu, J. C. Hart, H. Hartmann, G. Hartner, R. C. W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, E. Hilger, K. H. Hiller, J. Hladký, D. Hochman, D. Hoffmann, R. Hori, R. Horisberger, T. Hreu, F. Huber, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, M. Jacquet, H.-P. Jakob, X. Janssen, F. Januschek, T. W. Jone, L. Jönsson, M. Jüngst, A. W. Jung, H. Jung, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, M. Kapichine, U. Karshon, F. Karsten, I. I. Katkov, P. Kaur, M. Kaur, I. R. Kenyon, A. Keramida, L. A. Khein, C. Kiesling, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, M. Klein, U. Klein, C. Kleinwort, U. Kötz, E. Koffeman, R. Kogler, N. Kondrashova, O. Kononenko, P. Kooijman, I. Korol, I. A. Korzhavina, P. Kostka, A. Kotański, H. Kowalski, M. Krämer, J. Kretzschmar, K. Krüger, O. Kuprash, M. Kuze, M. P. J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, A. Lee, V. Lendermann, B. B. Levchenko, S. Levonian, A. Levy, V. Libov, S. Limentani, T. Y. Ling, K. Lipka, M. Lisovyi, B. List, J. List, E. Lobodzinska, B. Lobodzinski, B. Löhr, W. Lohmann, E. Lohrmann, K. R. Long, A. Longhin, D. Lontkovskyi, R. Lopez-Fernandez, V. Lubimov, O. Y. Lukina, J. Maeda, S. Magill, I. Makarenko, E. Malinovski, J. Malka, R. Mankel, A. Margotti, G. Marini, J. F. Martin, H.-U. Martyn, A. Mastroberardino, M. C. K. Mattingly, S. J. Maxfield, A. Mehta, I.-A. Melzer-Pellmann, S. Mergelmeyer, A. B. Meyer, H. Meyer, J. Meyer, S. Miglioranzi, S. Mikocki, I. Milcewicz-Mika, F. Mohamad Idri, V. Monaco, A. Montanari, F. Moreau, A. Morozov, J. V. Morri, J. D. Morri, K. Mujkic, K. Müller, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, T. Naumann, P. R. Newman, C. Niebuhr, A. Nigro, D. Nikitin, Y. Ning, T. Nobe, D. Notz, G. Nowak, K. Nowak, R. J. Nowak, A. E. Nuncio-Quiroz, B. Y. Oh, N. Okazaki, K. Olkiewicz, J. E. Olsson, Y. Onishchuk, D. Ozerov, P. Pahl, V. Palichik, M. Pandurovic, K. Papageorgiu, A. Parenti, C. Pascaud, G. D. Patel, E. Paul, J. M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, E. Perez, W. Perlański, H. Perrey, A. Petrukhin, I. Picuric, K. Piotrzkowski, H. Pirumov, D. Pitzl, R. Plačakytė, P. Pluciński, B. Pokorny, N. S. Pokrovskiy, R. Polifka, A. Polini, B. Povh, A. S. Proskuryakov, M. Przybycień, V. Radescu, N. Raicevic, A. Raval, T. Ravdandorj, D. D. Reeder, P. Reimer, B. Reisert, Z. Ren, J. Repond, Y. D. Ri, E. Rizvi, A. Robertson, P. Robmann, P. Roloff, R. Roosen, A. Rostovtsev, M. Rotaru, I. Rubinsky, J. E. Ruiz Tabasco, S. Rusakov, M. Ruspa, R. Sacchi, D. Šálek, U. Samson, D. P. C. Sankey, G. Sartorelli, M. Sauter, E. Sauvan, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, S. Schmitt, U. Schneekloth, L. Schoeffel, V. Schönberg, A. Schöning, T. Schörner-Sadeniu, H.-C. Schultz-Coulon, J. Schwartz, F. Sciulli, F. Sefkow, L. M. Shcheglova, R. Shehzadi, S. Shimizu, S. Shushkevich, I. Singh, I. O. Skillicorn, W. Słomiński, W. H. Smith, V. Sola, A. Solano, Y. Soloviev, D. Son, P. Sopicki, V. Sosnovtsev, D. South, V. Spaskov, A. Specka, A. Spiridonov, H. Stadie, L. Stanco, Z. Staykova, M. Steder, N. Stefaniuk, B. Stella, A. Stern, T. P. Stewart, A. Stifutkin, G. Stoicea, P. Stopa, U. Straumann, S. Suchkov, G. Susinno, L. Suszycki, T. Sykora, J. Sztuk-Dambietz, J. Szuba, D. Szuba, A. D. Tapper, E. Tassi, J. Terrón, T. Theedt, P. D. Thompson, H. Tiecke, K. Tokushuku, J. Tomaszewska, T. H. Tran, D. Traynor, P. Truöl, V. Trusov, I. Tsakov, B. Tseepeldorj, T. Tsurugai, M. Turcato, O. Turkot, J. Turnau, T. Tymieniecka, M. Vázquez, A. Valkárová, C. Vallée, P. Mechelen, Y. Vazdik, A. Verbytskyi, O. Viazlo, N. N. Vlasov, R. Walczak, W. A. T. Wan Abdullah, D. Wegener, J. J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, E. Wünsch, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, J. Žáček, J. Zálešák, O. Zenaiev, W. Zeuner, Z. Zhang, B. O. Zhautykov, N. Zhmak, A. Zichichi, R. Žlebčík, H. Zohrabyan, Z. Zolkapli, F. Zomer, D. S. Zotkin, and A. F. Żarnecki
Subjects: Quark, Particle physics, Physics and Astronomy (miscellaneous), Lepton-Nucleon Scattering, HERA, FOS: Physical sciences, Parton, Inelastic scattering, 01 natural sciences, Charm quark, Systematic Uncertainty, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Charm Quark, Charm Production, Reduce Cross Section, Charm Quark Mass, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, Charm (quantum number), High Energy Physics, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), H1 Collaboration, Physics, ZEUS Collaboration, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Deep inelastic scattering, Distribution function, Physique des particules élémentaires, High Energy Physics::Experiment
Abstract: Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σredcc̄ for charm production are obtained in the kinematic range of photon virtuality 2. 5≤Q2≤2000 GeV2 and Bjorken scaling variable 3{dot operator}10-5≤x≤5{dot operator}10-2. The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined. © 2013 The Author(s)., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2013

25. Angular correlations in three-jet events inepcollisions at HERA

Author: A. Raval, Ie. Korol, I. A. Korzhavina, P. Roloff, U. Karshon, Danuta Kisielewska, G. Susinno, T. P. Stewart, P.F. Ermolov, M. Arneodo, Robert Ciesielski, L. M. Shcheglova, B. B. Levchenko, C. Youngman, A. Longhin, Alessandro Polini, P. Stopa, I. Gialas, A. E. Nuncio-Quiroz, J. Grebenyuk, A. Nigro, N. Brümmer, R. Ingbir, R. Yoshida, James Ferrando, P. Göttlicher, O. Behnke, Allen Caldwell, J. Schwartz, G. Grzelak, M. Ruspa, L. Wiggers, E. Gallo, Massimo Corradi, Zainol Abidin Ibrahim, A.S. Proskuryakov, V. Sosnovtsev, J. F. Martin, Ada Solano, T. Namsoo, V. Bokhonov, A. Keramidas, Marcello Bindi, B. Pawlik, Edouard Boos, M. Derrick, T. Tymieniecka, A.G. Yagües-Molina, Masahiro Kuze, Iwona Grabowska-Bold, Tobias M. Haas, D. Gladkov, Antonio Pellegrino, A. N. Barakbaev, V. Schönberg, A. Zichichi, Claire Gwenlan, A.G. Robertson, Mariusz Przybycien, O. Viazlo, F. Januschek, D. Notz, J. M. Pawlak, Z. L. Ren, D.D. Reeder, Kenneth Long, Marco Schioppa, S. Magill, Uta Klein, W. H. Smith, P. G. Pelfer, S. Limentani, J. Del Peso, Y. Ning, J. Repond, D.S. Zotkin, J. Maeda, Yuji Yamazaki, Igor Katkov, C. Zhou, Ramoona Shehzadi, B. Löhr, Denys Lontkovskyi, Marcin Pawel Guzik, A. Stern, Takuya Nobe, A. Parenti, Guenter Wolf, A. Garfagnini, C. D. Catterall, R. J. Nowak, R. Aggarwal, I. Singh, T. Tsurugai, B.O. Zhautykov, Marco Costa, Y. Iga, F. Mohamad Idris, Mykhailo Lisovyi, H.-P. Jakob, K. Oliver, Claudia Glasman, V. Drugakov, Achim Geiser, E. Brownson, W. Perlanski, R.C.E. Devenish, U. Samson, John Hart, B. Brzozowska, Fernando Barreiro, R. Brugnera, O. Yu. Lukina, B. Reisert, Kerstin Borras, T. W. Jones, M.C.K. Mattingly, Juan Terron, Lorenzo Bellagamba, Luca Stanco, Lev Khein, Enrico Tassi, J. J. Whitmore, Dong-Chul Son, J. Tomaszewska, Wojciech Slominski, L. S. Durkin, T. Schörner-Sadenius, Katsuo Tokushuku, S.I. Suchkov, R. Mankel, Wolfgang Lohmann, Graziano Bruni, Oleg Kuprash, J. Szuba, K. Wrona, D. H. Saxon, Orel Gueta, Andrii Verbytskyi, I. Rubinsky, H. Tiecke, S. Antonelli, R. Hamatsu, O. Bachynska, M. Jüngst, Ben Bylsma, D. Szuba, Janusz Chwastowski, Els Koffeman, E. Lohrmann, C. Blohm, Jan Figiel, S. Kananov, S. Fazio, Peter Schleper, G. Hartner, H. Hartmann, S. De Pasquale, V. Aushev, Francois Corriveau, Vladyslav Libov, B. Foster, I. Kadenko, S. Dusini, Grzegorz Gach, M. Adamus, Leszek Adamczyk, Didar Dobur, D. Bot, G. Marini, E. Paul, Shima Shimizu, Wolfram Dietrich Zeuner, A. Bamberger, Alessia Bruni, M.I. Ferrero, Alexander Spiridonov, Ulf Behrens, I. A. Melzer-Pellmann, N. Okazaki, A. Kotański, F. Karstens, E. Hilger, H. Kowalski, Tomasz Bold, Matthew Forrest, Ian Brock, G. Bari, F. J. Sciulli, Y. Aushev, Halina Abramowicz, Alessandro Montanari, F. Cindolo, John Morris, W. A. T. Wan Abdullah, B.Y. Oh, Alexander Tapper, J. Y. Kim, Pietro Antonioli, S. Bhadra, A. Hüttmann, N. Zhmak, Luisa Cifarelli, R. K. Dementiev, K. Mujkic, A. Contin, Alexander Savin, S. Fang, N.S. Pokrovskiy, B. Musgrave, Ewelina Lobodzinska, O. Zenaiev, I. Makarenko, Hartmut Stadie, Valentina Sola, A. Margotti, Zukhaimira Zolkapli, N. Coppola, K. Olkiewicz, H. Wolfe, L. Suszycki, Sebastian Mergelmeyer, Roberto Sacchi, Ingrid-Maria Gregor, Peter Bussey, U. Schneekloth, Anna Mastroberardino, A. Antonov, Masaki Ishitsuka, R. Hori, M. Jimenez, I. O. Skillicorn, Aharon Levy, Amanda Cooper-Sarkar, K. Piotrzkowski, S. Kitamura, M. Zolko, W. B. Schmidke, R. Nania, T. Kanno, Hanno Perrey, G. Dolinska, T. Theedt, Yu. A. Golubkov, K. Papageorgiu, J. Malka, F. Dal Corso, Yu. Onishchuk, U. Noor, Marcella Capua, P. Kooijman, N.N. Vlasov, M. Wlasenko, Silvia Miglioranzi, S. Yamada, Alessandro Bertolin, G. Grigorescu, I. Abt, Boris Dolgoshein, V. Monaco, W. Hain, A. Eskreys, Pawel Plucinski, Janna Katharina Behr, A. F. Żarnecki, Y.D. Ri, A. Galas, A. Salii, D. Hochman, O. Volynets, S. Schlenstedt, L. Zawiejski, M. Turcato, Kunihiro Nagano, G. D'Agostini, M. Vázquez, P. Kaur, Kyrylo Bondarenko, T. Y. Ling, M. Basile, O. Gogota, O. Tomalak, U. Kötz, Robert Klanner, A. Stifutkin, Y. Eisenberg, K. Horton, J. Ciborowski, Giuseppe Barbagli, A. T. Doyle, Manjit Kaur, Matthew Wing, G. Sartorelli, Leonid Gladilin, Roman Walczak, Davide Boscherini, N. Bartosik, J. Sztuk-Dambietz, Sergei Chekanov, Dirk-Uwe Bartsch, B. Kahle, Roberto Carlin, A. Lee, Zeus (IHEF, IoP, FNWI), Precision Frontier, UAM. Departamento de Física Teórica, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, ZEUS, DEEP-INELASTIC-SCATTERING, TRIPLE-GLUON VERTEX, QCD COLOR FACTORS, CENTRAL TRACKING DETECTOR, 4-JET FINAL-STATES, LEPTON-NUCLEON SCATTERING, ZEUS BARREL CALORIMETER, C-A/C-F, PARTON DISTRIBUTIONS, FOS: Physical sciences, ep collisions, Symmetry group, Jet (particle physics), 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ddc:530, 010306 general physics, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Scattering, Física, Perturbative QCD, HERA, Deep inelastic scattering, Symmetry (physics), Three-jet production, High Energy Physics::Experiment, ZEUS experiment
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, Three-jet production in deep inelastic ep scattering and photoproduction was investigated with the ZEUS detector at HERA using an integrated luminosity of up to 127pb-1. Measurements of differential cross sections are presented as functions of angular correlations between the three jets in the final state and the proton-beam direction. These correlations provide a stringent test of perturbative QCD and show sensitivity to the contributions from different color configurations. Fixed-order perturbative calculations assuming the values of the color factors CF, CA, and TF as derived from a variety of gauge groups were compared to the measurements to study the underlying gauge group symmetry. The measured angular correlations in the deep inelastic ep scattering and photoproduction regimes are consistent with the admixture of color configurations as predicted by SU(3) and disfavour other symmetry groups, such as SU(N) in the limit of large N, This work was supported by the U.S. Department of Energy, the Italian National Institute for Nuclear Physics (INFN), the German Federal Ministry for Education and Research (BMBF) under Contract No. H09PDF, No. 05h09GUF, and the SFB 676 of the Deutsche Forschungsgemeinschaft (DFG); DESY, Germany; the Science and Technology Facilities Council, United Kingdom; an FRGS grant from the Malaysian government; Presidential grant N-4142.2010.2 for Leading Scientific Schools, by the Russian Ministry of Education and Science through its grant for Scientific Research on High Energy Physics and under Contract No. 02.740.11.0244; the Netherlands Foundation for Research on Matter (FOM); the Israel Science Foundation; the Max Planck Institute for Physics, Munich, Germany; MEIN research grant No. 1 P03B 04529 (2005–2008), Poland; Warsaw University, Poland; the Russian Foundation for Basic Research, Grant 11-02- 91345-DFG_a; the Polish Ministry of Science and Higher Education as a scientific project No. DPN/N188/DESY/ 2009 and its grants for Scientific Research; the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for Scientific Research; the Korean Ministry of Education and Korea Science and Engineering Foundation; FNRS and its associated funds (IISN and FRIA) and by an Inter-University Attraction Poles Programme subsidized by the Belgian Federal Science Policy Office; the Spanish Ministry of Education and Science through funds provided by CICYT; the Natural Sciences and Engineering Research Council of Canada (NSERC); and the U.S. National Science Foundation
Published: 2012

26. Exclusive electroproduction of two pions at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E. G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, G. DOLINSKA, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I. A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´ NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK DAMBIETZ, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D. S. ZOTKIN, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, Precision Frontier, Zeus (IHEF, IoP, FNWI), H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: Particle physics, TAU-DECAYS, Physics and Astronomy (miscellaneous), J/PSI MESONS, Nuclear Theory, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pion, Pion em form factor, 0103 physical sciences, SCATTERING, ddc:530, RHO-MESON, CALORIMETER, Nuclear Experiment, 010306 general physics, DIFFRACTIVE ELECTROPRODUCTION, Engineering (miscellaneous), Physics, FORM-FACTOR, 010308 nuclear & particles physics, Two-pion exclusive electroproduction, Sigma, ZEUS, CENTRAL TRACKING DETECTOR, VECTOR-MESON PRODUCTION, PHOTOPRODUCTION, HERA, Vertex (geometry), High Energy Physics::Experiment, ZEUS experiment
Abstract: The exclusive electroproduction of two pions in the mass range 0.4 < M{\pi}{\pi} < 2.5 GeV has been studied with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The analysis was carried out in the kinematic range of 2 < Q2 < 80 GeV2, 32 < W < 180 GeV and |t| < 0.6 GeV2, where Q2 is the photon virtuality, W is the photon-proton centre-of-mass energy and t is the squared four-momentum transfer at the proton vertex. The two-pion invariant-mass distribution is interpreted in terms of the pion electromagnetic form factor, |F(M{\pi}{\pi})|, assuming that the studied mass range includes the contributions of the {\rho}, {\rho}' and {\rho}" vector-meson states. The masses and widths of the resonances were obtained and the Q2 dependence of the cross-section ratios {\sigma}({\rho}' \rightarrow {\pi}{\pi})/{\sigma}({\rho}) and {\sigma}({\rho}" \rightarrow {\pi}{\pi})/{\sigma}({\rho}) was extracted. The pion form factor obtained in the present analysis is compared to that obtained in e+e- \rightarrow {\pi}+{\pi}-., Comment: 24 pages, including 11 figures
Published: 2012

27. Search for first-generation leptoquarks at HERA

Author: Hanno Perrey, L. M. Shcheglova, Yu. Onishchuk, Yu. A. Golubkov, E. Paul, Tobias M. Haas, R.C.E. Devenish, T. Schörner-Sadenius, Matthew Forrest, P. Kooijman, S. Fazio, Roberto Sacchi, P. Roloff, U. Karshon, R. Ingbir, Iwona Grabowska-Bold, I. Kadenko, Shinichi Shimizu, M. Basile, A. Antonov, M. Arneodo, Robert Ciesielski, A. E. Nuncio-Quiroz, I. Makarenko, G. Susinno, Alexander Spiridonov, I. A. Melzer-Pellmann, W. A. T. Wan Abdullah, J. Schwartz, G. Grzelak, Aharon Levy, T. Namsoo, Valentina Sola, H.-P. Jakob, R. Nania, M. Ruspa, N. Zhmak, T. Kanno, B. B. Levchenko, I. O. Skillicorn, Claire Gwenlan, L. Suszycki, K. Piotrzkowski, F. Januschek, Nazar Stefaniuk, Takuya Nobe, D. Bot, A. Galas, Aleksander Filip Żarnecki, R. Brugnera, A. Contin, Alexander Savin, F. J. Sciulli, V. Schönberg, Alessandro Bertolin, Kerstin Borras, Ulf Behrens, C. Zhou, W. B. Schmidke, M. Jüngst, Ben Bylsma, H. Kowalski, R. Yoshida, D.D. Reeder, D. Szuba, G. Grigorescu, E. Brownson, A. T. Doyle, Ramoona Shehzadi, I. Abt, K. Olkiewicz, Denys Lontkovskyi, O. Behnke, G. D'Agostini, B. A. Dolgoshein, Orel Gueta, Andrii Verbytskyi, Dong-Chul Son, O. Zenaiev, J. F. Martin, M. Vázquez, Kyrylo Bondarenko, T. Y. Ling, Yuji Yamazaki, D. Gladkov, O. Gogota, V. Trusov, Igor Katkov, Mykhailo Lisovyi, H. Wolfe, Vladyslav Libov, Nazar Bartosik, G. Hartner, I. M. Gregor, J. M. Pawlak, Ian Brock, Robert Klanner, Enrico Tassi, J. J. Whitmore, G. Dolinska, J. Szuba, O. Kononenko, H. Hartmann, Guenter Wolf, I. Gialas, J. Tomaszewska, B. Brzozowska, P. Stopa, Y. Eisenberg, Allen Caldwell, K. Papageorgiu, A. Raval, Danuta Kisielewska, T. P. Stewart, A. Keramidas, K. Mujkic, A.S. Proskuryakov, R. Hori, A. Hüttmann, D. H. Saxon, C. Youngman, A. Garfagnini, Alessandro Polini, Giuseppe Barbagli, Kenneth Long, Leszek Adamczyk, B. Musgrave, C. Blohm, Alessia Bruni, V. Monaco, M.I. Ferrero, O. Turkot, W. Hain, F. Karstens, Marcin Pawel Guzik, Hartmut Stadie, G. Sartorelli, J. Grebenyuk, L.W. Wiggers, U. Samson, W. H. Smith, P. Göttlicher, S. De Pasquale, J. Repond, J. Maeda, Mário Costa, Y. Ning, R. Aggarwal, B.O. Zhautykov, Zainol Abidin Ibrahim, K. Horton, M. Derrick, T. Tymieniecka, Y. Iga, Ada Solano, V. Bokhonov, Lorenzo Bellagamba, Ie. Korol, Pawel Plucinski, A. Margotti, A. Eskreys, N. Brümmer, Peter Bussey, M. Kuze, E. Lohrmann, A. Parenti, U. Kötz, T. Tsurugai, R. Mankel, Marcello Bindi, B. Pawlik, Antonio Pellegrino, Y.D. Ri, V. Sosnovtsev, Wolfgang Lohmann, Grzegorz Gach, Graziano Bruni, Halina Abramowicz, John Hart, Jan Figiel, A. N. Barakbaev, I. A. Korzhavina, L. Zawiejski, M. Turcato, A. Stern, W. Slominski, Marco Schioppa, S. Magill, S. Limentani, F. Cindolo, P. G. Pelfer, Matthew Wing, Ozan Arslan, Tomasz Bold, Oleg Kuprash, Katsuo Tokushuku, Janna Katharina Behr, H. Tiecke, Kunihiro Nagano, A. Zichichi, Janusz Chwastowski, I. Rubinsky, D. Notz, D.S. Zotkin, C. D. Catterall, T. W. Jones, I. Singh, Sergei Chekanov, Achim Geiser, R. J. Nowak, Dirk-Uwe Bartsch, P.F. Ermolov, E. Hilger, G. Bari, Juan Terron, P. Kaur, A. Lee, A. Longhin, A. Nigro, James Ferrando, S. Antonelli, E. Gallo, Massimo Corradi, O. Zabiegalov, Francois Corriveau, B.Y. Oh, A. Stifutkin, A. Kotański, A.G. Robertson, Mariusz Przybycien, O. Viazlo, Alexander Tapper, D. Hochman, S. Schlenstedt, N.S. Pokrovskiy, Zukhaimira Zolkapli, Ewelina Lobodzinska, U. Schneekloth, J. Ciborowski, Edouard Boos, S. Fang, Sebastian Mergelmeyer, M.C.K. Mattingly, L. S. Durkin, S. Kitamura, T. Theedt, R. Hamatsu, O. Bachynska, Manjit Kaur, Els Koffeman, Peter Schleper, V. Aushev, K. Wichmann, M. Adamus, G. Marini, Wolfram Dietrich Zeuner, A. Bamberger, Roman Walczak, Uta Klein, Davide Boscherini, Zhongliang Ren, F. Mohamad dris, S. Bhadra, J. Sztuk-Dambietz, K. Oliver, O. Yu. Lukina, B. Reisert, Claudia Glasman, V. Drugakov, B. Kahle, Roberto Carlin, Luca Stanco, Lev Khein, S. Kananov, J. Malka, F. Dal Corso, Marcella Capua, N.N. Vlasov, N. Kondrashova, Masaki Ishitsuka, B. Löhr, K. Wrona, B. Foster, S. Dusini, J. Y. Kim, Pietro Antonioli, Luisa Cifarelli, L. K. Gladilin, R. K. Dementiev, Fernando Barreiro, S.I. Suchkov, Didar Dobur, Y. Aushev, Alessandro Montanari, N. Coppola, A.G. Yagües-Molina, Anna Mastroberardino, Amanda Cooper-Sarkar, J. Del Peso, M. Wlasenko, Silvia Miglioranzi, S. Yamada, A. Gizhko, W. Perlanski, N. Okazaki, John Morris, UAM. Departamento de Física Teórica, Zeus (IHEF, IoP, FNWI), H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, K. Bondarenko, E. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. D’Agostini, F. Dal Corso, J. del Peso, R. Dementiev, S. De Pasquale, M. Derrick, R. Devenish, D. Dobur, B. Dolgoshein, G. Dolinska, A. Doyle, V. Drugakov, L. Durkin, S. Dusini, Y. Eisenberg, P. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M. Ferrero, J. Figiel, M. Forrest, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, K. Horton, A. Hüttmann, Z. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H.-P. Jakob, F. Januschek, T. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I. Katkov, M. Kaur, P. Kaur, A. Keramida, L. Khein, J. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I. Korzhavina, A. Kotański, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B. Levchenko, A. Levy, V. Libov, S. Limentani, T. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K. Long, A. Longhin, D. Lontkovskyi, O. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J. Martin, A. Mastroberardino, M. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad dri, V. Monaco, A. Montanari, J. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R. Nowak, A. Nuncio-Quiroz, B. Oh, N. Okazaki, K. Oliver, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J. Pawlak, B. Pawlik, P. Pelfer, A. Pellegrino, W. Perlański, H. Perrey, K. Piotrzkowski, P. Pluciński, N. Pokrovskiy, A. Polini, A. Proskuryakov, M. Przybycień, A. Raval, D. Reeder, B. Reisert, Z. Ren, J. Repond, Y. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A. Savin, D. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I. Skillicorn, W. Słomiński, W. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N. Vlasov, R. Walczak, W. Wan Abdullah, J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B. Zhautykov, N. Zhmak, C. Zhou, A. Zichichi, Z. Zolkapli, and D. Zotkin
Subjects: Exclusion limits, Nuclear and High Energy Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Electron, 01 natural sciences, Standard Model, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), EP COLLISIONS, 0103 physical sciences, ddc:530, Leptoquark, 010306 general physics, Physics, Coupling, PP COLLISIONS, ZEUS (particle detector), Luminosity (scattering theory), ROOT-S=7 TEV, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Yukawa potential, GENERATION SCALAR LEPTOQUARKS, Física, ZEUS, ZEUS BARREL CALORIMETER, HERA, SCATTERING CROSS-SECTIONS, PHYSICS EVENT GENERATION, CENTRAL TRACKING DETECTOR, FERMION-PAIR PRODUCTION, HADRON-COLLISIONS, High Energy Physics::Experiment, ZEUS experiment
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, A search for first-generation leptoquarks was performed in electron-proton and positron-proton collisions recorded with the ZEUS detector at HERA in 2003–2007 using an integrated luminosity of 366 pb-1. Final states with an electron and jets or with missing transverse momentum and jets were analyzed, searching for resonances or other deviations from the standard model predictions. No evidence for any leptoquark signal was found. The data were combined with data previously taken at HERA, resulting in a total integrated luminosity of 498 pb-1. Limits on the Yukawa coupling, λ, of leptoquarks were set as a function of the leptoquark mass for different leptoquark types within the Buchmüller-Rückl-Wyler model. Leptoquarks with a coupling λ = 0.3 are excluded for masses up to 699 GeV, This work was supported by the U.S. Department of Energy; the Italian National Institute for Nuclear Physics (INFN); the German Federal Ministry for Education and Research (BMBF), under Contract No. 05 H09PDF; the Science and Technology Facilities Council, UK; an FRGS grant from the Malaysian government; the U.S. National Science Foundation (any opinion, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation); the Polish Ministry of Science and Higher Education as a scientific project No. DPN/N188/DESY/2009; the Polish Ministry of Science and Higher Education and its grants for Scientific Research; the German Federal Ministry for Education and Research (BMBF), under Contract No. 05h09GUF, and the SFB 676 of the Deutsche Forschungsgemeinschaft (DFG); the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for Scientific Research; the Korean Ministry of Education and Korea Science and Engineering Foundation; FNRS and its associated funds (IISN and FRIA) and by an Inter- University Attraction Poles Programme subsidised by the Belgian Federal Science Policy Office; the Spanish Ministry of Education and Science through funds provided by CICYT; the Natural Sciences and Engineering Research Council of Canada (NSERC); supported by the German Federal Ministry for Education and Research (BMBF); R. F. Presidential Grant No. 4142.2010.2 for Leading Scientific Schools, by the Russian Ministry of Education and Science through its grant for Scientific Research on High Energy Physics and under Contract No. 02.740.11.0244; the Netherlands Foundation for Research on Matter (FOM); and the Israel Science Foundation. R. Aggarwal, P. Kaur, and I. Singh were supported by the Max Planck Institute for Physics, Munich, Germany. V. Aushev, Y. Aushev, V. Bokhonov, and N. Zhmak were supported by DESY, Hamburg, Germany. A. Kotanski was supported by the research Grant No. 1 P03B 04529 (2005-2008). W. Słomin´ski was supported by the Polish National Science Centre, Project No. DEC-2011/01/BST2/03643. J. Tomaszewska was partially supported by Warsaw University, Poland. K. Gladilin and I. A. Korzhavina were supported by the Russian Foundation for Basic Research, Grant No. 11-02-91345-DFG_a
Published: 2012
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28. Measurement of the t dependence in exclusive photoproduction of $\Upsilon$(1S) mesons at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E. G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, G. DOLINSKA, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I. A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´ NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK DAMBIETZ, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D. S. ZOTKIN, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: High Energy Physics - Experiment (hep-ex), Upsilon(1S) photoproduction, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics::Experiment, ep collisions, ddc:530, Nuclear Experiment, High Energy Physics - Experiment, ZEUS experiment
Abstract: The exclusive photoproduction reaction gamma p -> Upsilon(1S) p has been studied with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 468 pb^-1. The measurement covers the kinematic range 60 Upsilon(1S) p cross section., Comment: 15 pages, 4 figures; http://dx.doi.org/10.1016/j.physletb.2012.01.009
Published: 2012

29. Combined inclusive diffractive cross sections measured with forward proton spectrometers in deep inelastic ep scattering at HERA

Author: Murrough Landon, J. M. Pawlak, K. Lipka, Takuya Nobe, D. Wegener, A. Garfagnini, Shima Shimizu, Tobias M. Haas, U. Samson, P. Van Mechelen, A. Raval, Alexandre Lebedev, Stephen Maxfield, Tomasz Bold, Mykhailo Lisovyi, Shoichi Yamada, S. Shushkevich, P. Sopicki, J. Žáček, T.H. Tran, Katsuo Tokushuku, M. Jüngst, Ben Bylsma, Danuta Kisielewska, D. Szuba, R.C.E. Devenish, D.D. Reeder, Ramoona Shehzadi, Adrian Stern, A. Pellegrino, T. Schörner-Sadenius, Ingrid-Maria Gregor, J. Zálešák, Andrew Mehta, V. Spaskov, F. Huber, C. Pascaud, Max Klein, A. B. Meyer, D. Traynor, J. Ciborowski, Yu. A. Golubkov, T. P. Stewart, J. Malka, G. Hartner, E. Paul, Ie. Korol, Anna Mastroberardino, A. Eliseev, T. Namsoo, N. Gogitidze, H. Hartmann, B. B. Levchenko, E. Barrelet, M.C.K. Mattingly, L. S. Durkin, Amanda Cooper-Sarkar, C. Youngman, Iwona Grabowska-Bold, R. Hamatsu, O. Bachynska, T. W. Jones, A.G. Robertson, S. Habib, O. Turkot, Hans-Christian Schultz-Coulon, B. Stella, L. M. Shcheglova, Andrea Contin, Mariusz Przybycien, O. Viazlo, Janusz Chwastowski, Alessandro Polini, Z. Staykova, Paul Laycock, J. F. Martin, Alexander Bylinkin, Els Koffeman, Calin Alexa, G. D'Agostini, H. U. Martyn, J. E. Ruiz Tabasco, E. A. De Wolf, A. M. Fomenko, A. Antonov, S. Mikocki, R. Roosen, Dieter H. H. Hoffmann, Matthew Forrest, Peter Schleper, V. Aushev, Rosario Nania, E. Malinovski, Manjit Kaur, Stefan Schmitt, M. Dobre, Vladyslav Libov, Kyrylo Bondarenko, T. Y. Ling, Emmanuel Sauvan, Pavel A. Belov, P.M. Kooijman, E. Perez, G. Grindhammer, D. Gladkov, H. Henschel, Robert Henderson, D. Hochman, K. Wichmann, M. Adamus, S. Ghazaryan, G. Marini, Wolfram Dietrich Zeuner, Achim Geiser, V. P. Andreev, Halina Abramowicz, Ada Solano, Alexander Spiridonov, I. A. Melzer-Pellmann, I. A. Korzhavina, Fabian Zomer, A. Bamberger, T. J. Sloan, A.S. Belousov, Sergey Rusakov, Robert Klanner, L. Stanco, K. Mujkic, Leonid Gladilin, R. Ingbir, Y. Vazdik, S. Schlenstedt, V. Schönberg, V. Bokhonov, P. Göttlicher, Davide Boscherini, Ian Brock, G. Herrera, Guenter Wolf, Claus Kleinwort, Marcella Capua, P. Truöl, E. Hilger, E.G. Boos, Gabriel Stoicea, E. E. Elsen, K. Krüger, K. Daum, V. Sosnovtsev, Y. Soloviev, B. Brzozowska, Roland Horisberger, Juan Terron, P. Stopa, S. Bhadra, S. Limentani, B.O. Zhautykov, Cristinel Diaconu, O. Zenaiev, B. Delcourt, Marco Costa, Michele Arneodo, A. Valkárová, D. Ozerov, A. Keramidas, B. Musgrave, Tomas Hreus, Laurent Favart, U. Straumann, Pawel Plucinski, B.Y. Oh, J. Feltesse, Y. Iga, Ricardo Lopez-Fernandez, W. Perlanski, A. Specka, Valentina Sola, D. H. Saxon, Thomas Naumann, V. Lubimov, Hannes Jung, Vladimir Palichik, P.F. Ermolov, A. Hüttmann, John Hart, A. Bertolin, Lorenzo Bellagamba, D. J. Fischer, Nazar Stefaniuk, N.N. Vlasov, Jan Figiel, L. Suszycki, Alexander Zhokin, S. Antonelli, Marco Schioppa, P. G. Pelfer, N.S. Pokrovskiy, M. Steder, Oleg Kuprash, Grzegorz Nowak, H.-P. Jakob, I. Gialas, A. E. Nuncio-Quiroz, Giuseppe Barbagli, A. Schöning, Anselmo Margotti, J. Grebenyuk, L.W. Wiggers, Zukhaimira Zolkapli, A. Dossanov, I. Makarenko, E. Lohrmann, I. Rubinsky, Masahiro Kuze, I. Singh, L. Zawiejski, Y.D. Ri, M. Turcato, P. D. Thompson, A. Dubak, D.K. Nikitin, G. Grigorescu, A. Galas, A. Petrukhin, Sergei Chekanov, R. Brugnera, N. Okazaki, Ulf Behrens, Federico Cindolo, H. Kowalski, John Morris, I. O. Skillicorn, Allen Caldwell, Grzegorz Gach, Federico Alberto Ceccopieri, Tim Greenshaw, Kunihiro Nagano, K. B. Cantun Avila, J. E. Olsson, Y. Eisenberg, W. Bartel, Robert Ciesielski, M. Brinkmann, W. Slominski, B. Tseepeldorj, M. Jacquet, James Ferrando, Kenneth Long, Dirk-Uwe Bartsch, Kerstin Borras, Dong-Chul Son, I. Picuric, G. Bari, Claudia Glasman, V. Drugakov, P. Roloff, M. Kapichine, Roberto Sacchi, C. Kiesling, V. Trusov, W. A. T. Wan Abdullah, B. Löhr, F. Moreau, J. Hladký, B. Lobodzinski, Karl Heinz Hiller, Yuji Yamazaki, Malte Hildebrandt, R. Walczak, F. Dal Corso, Zainol Abidin Ibrahim, T. Tymieniecka, A.G. Yagües-Molina, A. Parenti, O. Gogota, Elisabetta Gallo, U. Kötz, L. N. Shtarkov, Yu. Onishchuk, Igor Katkov, S. Magill, A. J. Campbell, U. Karshon, Daniel Pitzl, Lev Khein, Karel Cerny, J. Maeda, Guenter Eckerlin, I. R. Kenyon, J. Cvach, I. Milcewicz-Mika, O. Kononenko, A. Lee, L. Goerlich, G. Susinno, P. Kaur, Natasa Raicevic, P. Kostka, M. Wlasenko, Af Zarnecki, Aharon Levy, R. J. Nowak, D. Bot, K. Wrona, J. Tomaszewska, Anastasia Grebenyuk, S. Kananov, B. Foster, V. Radescu, Paul Newman, S. Dusini, Ewelina Lobodzinska, O. Behnke, G. Sartorelli, K. Müller, John A Coughlan, V. Lendermann, V. Brisson, Mila Pandurovic, Gerhard Brandt, A. Stifutkin, G. Laštovička-Medin, J. Turnau, Silvia Miglioranzi, Juraj Bracinik, J. Sztuk-Dambietz, A. N. Morozov, Roman Kogler, Ozan Arslan, J.C. Bizot, C. Blohm, J. Y. Kim, R. Placakyte, I. Bozovic-Jelisavcic, Zhiqing Zhang, K. Begzsuren, I. Tsakov, K. Olkiewicz, U. Schneekloth, V. Chekelian, H. Wolfe, Z. L. Ren, Daniel Britzger, E. Hennekemper, S. Fang, Sebastian Mergelmeyer, Pietro Antonioli, A.S. Proskuryakov, F. J. Sciulli, Luisa Cifarelli, R. Felst, R. K. Dementiev, A. Gizhko, N. Brümmer, P. Pahl, R. Žlebčík, E. Gabathuler, Tomas Sykora, M. Sauter, N. Kondrashova, Marcin Pawel Guzik, H. Perrey, Alexandre Glazov, T. Tsurugai, M. Basile, S. Kitamura, R. Hori, A. T. Doyle, Jan Kretzschmar, D. Salek, Leif J. Jönsson, Matthew Wing, B. Pokorny, R. Mankel, R. Aggarwal, Wolfgang Lohmann, B. Kahle, A. Zichichi, Graziano Bruni, Roberto Carlin, M. Fleischer, T. Kanno, T. Theedt, Hartmut Stadie, J. B. Dainton, E. Brownson, J. Del Peso, V. Boudry, J. G. Contreras, Masaki Ishitsuka, Francois Corriveau, Orel Gueta, Andrii Verbytskyi, D. Notz, Marta Ruspa, D.S. Zotkin, C. D. Catterall, A. Kotański, Xavier Janssen, A. Longhin, Alexander Tapper, C. Niebuhr, K. Nowak, Bogdan Povh, F. Sefkow, S. Egli, A. Nigro, J-P. Meyer, Maxime Gouzevitch, N. Coppola, Massimo Corradi, O. Zabiegalov, Fernando Barreiro, S.I. Suchkov, Christoph Grab, S. Fazio, David M. South, Marina Rotaru, Uta Klein, Didar Dobur, A. Baghdasaryan, Y. Aushev, Alessandro Montanari, S. Levonian, B. Reisert, H.G.J.M. Tiecke, I. Kadenko, Dusan Bruncko, N. Zhmak, T. Ravdandorj, A. Rostovtsev, Alexander Savin, Richard Polifka, J. Szuba, F. D. Aaron, M. Derrick, Peter Robmann, E. Wünsch, Dave Sankey, Leszek Adamczyk, J. Delvax, Alessia Bruni, M.I. Ferrero, G. D. Patel, H. Meyer, F. Karstens, S. Backovic, Michael Kramer, Olga Lukina, C. Vallée, Denys Lontkovskyi, D. Haidt, A. Eskreys, Eram Rizvi, Nazar Bartosik, V. Dodonov, Enrico Tassi, J. J. Whitmore, Janna Katharina Behr, J. Schwartz, J. V. Morris, G. Grzelak, Jenny List, S. Baghdasaryan, M. Vázquez, A. Bunyatyan, Claire Gwenlan, F. Januschek, S. De Pasquale, Wolfgang Lange, W. B. Schmidke, I. Abt, J. Gayler, G. Dolinska, K. Papageorgiu, H. Pirumov, Boris Dolgoshein, A. V. Fedotov, V. Monaco, W. Hain, L. Bystritskaya, H. Zohrabyan, Peter Bussey, W. H. Smith, Y. Ning, Marcello Bindi, B. Pawlik, A. N. Barakbaev, V. Cerny, Benno List, F. Mohamad Idris, P. E. Reimer, J. Repond, Krzysztof Piotrzkowski, M. Herbst, R. Yoshida, J. Ferencei, Laurent Schoeffel, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, ZEUS, F. D. Aaron, H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, C. Alexa, V. Andreev, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, S. Backovic, A. Baghdasaryan, S. Baghdasaryan, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, E. Barrelet, W. Bartel, N. Bartosik, D. Bartsch, M. Basile, K. Begzsuren, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Belousov, P. Belov, A. Bertolin, S. Bhadra, M. Bindi, J. C. Bizot, C. Blohm, V. Bokhonov, K. Bondarenko, E. G. Boo, K. Borra, D. Boscherini, D. Bot, V. Boudry, I. Bozovic-Jelisavcic, T. Bołd, N. Brümmer, J. Bracinik, G. Brandt, M. Brinkmann, V. Brisson, D. Britzger, I. Brock, E. Brownson, R. Brugnera, D. Bruncko, A. Bruni, G. Bruni, B. Brzozowska, A. Bunyatyan, P. J. Bussey, A. Bylinkin, B. Bylsma, L. Bystritskaya, A. Caldwell, A. J. Campbell, K. B. Cantun Avila, M. Capua, R. Carlin, C. D. Catterall, F. Ceccopieri, K. Cerny, V. Cerny, S. Chekanov, V. Chekelian, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, J. G. Contrera, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, J. A. Coughlan, J. Cvach, G. D’Agostini, J. B. Dainton, F. Dal Corso, K. Daum, B. Delcourt, J. Delvax, R. K. Dementiev, M. Derrick, R. C. E. Devenish, S. Pasquale, E. A. Wolf, J. Peso, C. Diaconu, M. Dobre, D. Dobur, V. Dodonov, B. A. Dolgoshein, G. Dolinska, A. Dossanov, A. T. Doyle, V. Drugakov, A. Dubak, L. S. Durkin, S. Dusini, G. Eckerlin, S. Egli, Y. Eisenberg, A. Eliseev, E. Elsen, P. F. Ermolov, A. Eskrey, S. Fang, L. Favart, S. Fazio, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, J. Ferrando, M. I. Ferrero, J. Figiel, D.-J. Fischer, M. Fleischer, A. Fomenko, M. Forrest, B. Foster, E. Gabathuler, G. Gach, A. Gala, E. Gallo, A. Garfagnini, J. Gayler, A. Geiser, S. Ghazaryan, I. Giala, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, A. Glazov, L. Goerlich, N. Gogitidze, O. Gogota, Y. A. Golubkov, P. Göttlicher, M. Gouzevitch, C. Grab, I. Grabowska-Bołd, A. Grebenyuk, J. Grebenyuk, T. Greenshaw, I. Gregor, G. Grigorescu, G. Grindhammer, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, A. Hüttmann, T. Haa, S. Habib, D. Haidt, W. Hain, R. Hamatsu, J. C. Hart, H. Hartmann, G. Hartner, R. C. W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, E. Hilger, K. H. Hiller, J. Hladký, D. Hochman, D. Hoffmann, R. Hori, R. Horisberger, T. Hreu, F. Huber, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, M. Jacquet, H.-P. Jakob, X. Janssen, F. Januschek, T. W. Jone, L. Jönsson, M. Jüngst, H. Jung, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, M. Kapichine, U. Karshon, F. Karsten, I. I. Katkov, P. Kaur, M. Kaur, I. R. Kenyon, A. Keramida, L. A. Khein, C. Kiesling, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, M. Klein, U. Klein, C. Kleinwort, E. Koffeman, R. Kogler, N. Kondrashova, O. Kononenko, P. Kooijman, I. Korol, I. A. Korzhavina, P. Kostka, A. Kotański, U. Kötz, H. Kowalski, M. Krämer, J. Kretzschmar, K. Krüger, O. Kuprash, M. Kuze, M. P. J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, A. Lee, V. Lendermann, B. B. Levchenko, S. Levonian, A. Levy, V. Libov, S. Limentani, T. Y. Ling, K. Lipka, M. Lisovyi, B. List, J. List, E. Lobodzinska, B. Lobodzinski, W. Lohmann, B. Löhr, E. Lohrmann, K. R. Long, A. Longhin, D. Lontkovskyi, R. Lopez-Fernandez, V. Lubimov, O. Y. Lukina, J. Maeda, S. Magill, I. Makarenko, E. Malinovski, J. Malka, R. Mankel, A. Margotti, G. Marini, J. F. Martin, H.-U. Martyn, A. Mastroberardino, M. C. K. Mattingly, S. J. Maxfield, A. Mehta, I.-A. Melzer-Pellmann, S. Mergelmeyer, A. B. Meyer, H. Meyer, J. Meyer, S. Miglioranzi, S. Mikocki, I. Milcewicz-Mika, F. Mohamad Idri, V. Monaco, A. Montanari, F. Moreau, A. Morozov, J. V. Morri, J. D. Morri, K. Mujkic, K. Müller, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, T. Naumann, P. R. Newman, C. Niebuhr, A. Nigro, D. Nikitin, Y. Ning, T. Nobe, D. Notz, G. Nowak, K. Nowak, R. J. Nowak, A. E. Nuncio-Quiroz, B. Y. Oh, N. Okazaki, K. Olkiewicz, J. E. Olsson, Y. Onishchuk, D. Ozerov, P. Pahl, V. Palichik, M. Pandurovic, K. Papageorgiu, A. Parenti, C. Pascaud, G. D. Patel, E. Paul, J. M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, E. Perez, W. Perlański, H. Perrey, A. Petrukhin, I. Picuric, K. Piotrzkowski, H. Pirumov, D. Pitzl, R. Plačakytė, P. Pluciński, B. Pokorny, N. S. Pokrovskiy, R. Polifka, A. Polini, B. Povh, A. S. Proskuryakov, M. Przybycień, V. Radescu, N. Raicevic, A. Raval, T. Ravdandorj, D. D. Reeder, P. Reimer, B. Reisert, Z. Ren, J. Repond, Y. D. Ri, E. Rizvi, A. Robertson, P. Robmann, P. Roloff, R. Roosen, A. Rostovtsev, M. Rotaru, I. Rubinsky, J. E. Ruiz Tabasco, S. Rusakov, M. Ruspa, R. Sacchi, D. Šálek, U. Samson, D. P. C. Sankey, G. Sartorelli, M. Sauter, E. Sauvan, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, S. Schmitt, U. Schneekloth, L. Schoeffel, V. Schönberg, A. Schöning, T. Schörner-Sadeniu, H.-C. Schultz-Coulon, J. Schwartz, F. Sciulli, F. Sefkow, L. M. Shcheglova, R. Shehzadi, S. Shimizu, L. N. Shtarkov, S. Shushkevich, I. Singh, I. O. Skillicorn, W. Słomiński, T. Sloan, W. H. Smith, V. Sola, A. Solano, Y. Soloviev, D. Son, P. Sopicki, V. Sosnovtsev, D. South, V. Spaskov, A. Specka, A. Spiridonov, H. Stadie, L. Stanco, Z. Staykova, M. Steder, N. Stefaniuk, B. Stella, A. Stern, T. P. Stewart, A. Stifutkin, G. Stoicea, P. Stopa, U. Straumann, S. Suchkov, G. Susinno, L. Suszycki, T. Sykora, J. Sztuk-Dambietz, J. Szuba, D. Szuba, A. D. Tapper, E. Tassi, J. Terrón, T. Theedt, P. D. Thompson, H. Tiecke, K. Tokushuku, J. Tomaszewska, T. H. Tran, D. Traynor, P. Truöl, V. Trusov, I. Tsakov, B. Tseepeldorj, T. Tsurugai, M. Turcato, O. Turkot, J. Turnau, T. Tymieniecka, M. Vázquez, A. Valkárová, C. Vallée, P. Mechelen, Y. Vazdik, A. Verbytskyi, O. Viazlo, N. N. Vlasov, R. Walczak, W. A. T. Wan Abdullah, D. Wegener, J. J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, E. Wünsch, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, J. Žáček, J. Zálešák, L. Zawiejski, O. Zenaiev, W. Zeuner, Z. Zhang, B. O. Zhautykov, N. Zhmak, A. Zhokin, A. Zichichi, R. Žlebčík, H. Zohrabyan, Z. Zolkapli, F. Zomer, D. S. Zotkin, A. F. Żarnecki, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H1 Collaboration, ZEUS Collaboration, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Zeus (IHEF, IoP, FNWI), and ZEUS Collaboration (ukupan broj autora: 500)
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Proton, Leading proton spectrometers, Hadron, HERA, FOS: Physical sciences, Inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), ZEUS and H1 experiment, Physics, ZEUS (particle detector), 010308 nuclear & particles physics, Scattering, Inclusive diffractive cross section, ZEUS, Deep inelastic scattering, Proton Spectrometers, Physique des particules élémentaires, H1, Diffraction, High Energy Physics::Experiment, Nucleon
Abstract: A combination of the inclusive diffractive cross section measurements made by the H1 and ZEUS Collaborations at HERA is presented. The analysis uses samples of diffractive deep inelastic ep scattering data at a centre-of-mass energy √s= 318 Gev where leading protons are detected by dedicated spectrometers. Correlations of systematic uncertainties are taken into account, resulting in an improved precision of the cross section measurement which reaches 6 % for the most precise points. The combined data cover the range 2.5 < Q 2 < 200 GeV 2 in photon virtuality, 0.00035 < xP < 0.09 in proton fractional momentum loss, 0.09, 0, H1 and ZEUS Collaborations, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2012

30. Study of tau-pair production at HERA

Author: Katsuo Tokushuku, A. Longhin, F. Dal Corso, P. Stopa, A. Nigro, Francois Corriveau, C. Uribe-Estrada, R. Yoshida, F. Mohamad Idris, M. Jüngst, Ben Bylsma, D. Szuba, A. Kotański, O. Gogota, Y. Eisenberg, I. M. Gregor, M. Wlasenko, Af Zarnecki, H. Hartmann, D. Hochman, N. Brümmer, J. M. Pawlak, Anselmo Margotti, J. Grebenyuk, Alexander Tapper, Edouard Boos, T. Tsurugai, L.W. Wiggers, A. Garfagnini, Claudia Glasman, S. Yamada, A. Keramidas, V. Drugakov, N. Zhmak, J. Szuba, A. A. Savin, A. Bertolin, U. Samson, Lev Khein, R. Mankel, Wolfgang Lohmann, Halina Abramowicz, T. Tymieniecka, Krzysztof Piotrzkowski, Allen Caldwell, S. Fourletov, Iwona Grabowska-Bold, L. Zawiejski, S. Kananov, E. Brownson, M. Turcato, A. Antonov, R. Walczak, Cd Catterall, Ada Solano, Kunihiro Nagano, Y. D. Ri, T. Namsoo, Yuji Yamazaki, S. Limentani, Rosario Nania, D. Nicholass, L. M. Shcheglova, G. D'Agostini, Igor Katkov, T. Y. Ling, Jan Figiel, P. Plucinski, B. Musgrave, P. Kaur, Zainol Abidin Ibrahim, M. Derrick, I. Singh, Kenneth Long, Michele Arneodo, N. Bartosik, G. Grigorescu, I. Gialas, Giuseppe Iacobucci, G. Bari, H.G.J.M. Tiecke, A. Parenti, W. Perlanski, G. F. Susinno, P. Roloff, Giuseppe Barbagli, P. Göttlicher, B. B. Levchenko, J. Maeda, Giovanna Bruni, A. Salii, A. Stifutkin, L. Stanco, R. Ingbir, D. Notz, H.-P. Jakob, Jose Repond, D.S. Zotkin, A. Eskreys, Shinichi Shimizu, Gabriella Sartorelli, Uta Klein, I. O. Skillicorn, J. Sztuk-Dambietz, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, R. Brugnera, N. Okazaki, T. W. Jones, Janna Katharina Behr, O. Viazlo, K. Oliver, O. Tomalak, U. Kötz, D. Boscherini, Ewelina Lobodzinska, V. Sosnovtsev, Y. Aushev, M. Costa, J. F. Martin, Y. Onishchuk, Yu. A. Golubkov, E. Paul, Kerstin Borras, D. Bot, Fernando Barreiro, M. Vázquez, John Morris, Dong-Chul Son, O. Yu. Lukina, B. Reisert, T. Kanno, D. Gladkov, Y. Ning, U. Schneekloth, Marco Schioppa, W. Słomiński, P. G. Pelfer, Ulf Behrens, Federico Cindolo, H. Kowalski, D. D. Reeder, J. Chwastowski, J. Malka, P.F. Ermolov, S.I. Suchkov, K. Olkiewicz, Guenter Wolf, B. Brzozowska, M. Jimenez, S. Kitamura, J. Tomaszewska, S. Fang, Tobias M. Haas, R. J. Nowak, C. Blohm, Alexander Spiridonov, I. A. Melzer-Pellmann, B. Kahle, Ramoona Shehzadi, E. Ron, Roberto Carlin, Sebastian Mergelmeyer, Andrea Contin, G. Hartner, Anna Mastroberardino, R.C.E. Devenish, Didar Dobur, R. Hori, O. Zenaiev, Marcella Capua, P. Łużniak, Mykhailo Lisovyi, Amanda Cooper-Sarkar, Valentina Sola, F. J. Sciulli, V. Monaco, W. Hain, T. Schörner-Sadenius, J. Ciborowski, James Ferrando, O. Volynets, L. Suszycki, N.N. Vlasov, J. Whyte, Silvia Miglioranzi, Manjit Kaur, Alessandro Montanari, T. Theedt, S. K. Boutle, Hartmut Stadie, Leszek Adamczyk, B. Löhr, S. Magill, A. Polini, Matthew Forrest, E. Hilger, Ie. Korol, M. Adamus, Zhongliang Ren, K. Wrona, B. Foster, W. B. Schmidke, U. Karshon, A.G. Yagües-Molina, S. Dusini, K. Mujkic, G. Dolinska, J. Y. Kim, B.Y. Oh, Pietro Antonioli, L. K. Gladilin, W. H. Smith, M.I. Ferrero, R. K. Dementiev, K. Papageorgiu, Hanno Perrey, Elisabetta Gallo, J. Del Peso, A. Zichichi, S. Bhadra, O. Bolilyi, N.S. Pokrovskiy, O. Kuprash, Marcello Bindi, B. Pawlik, A. N. Barakbaev, V. Bokhonov, A. Pellegrino, F. Karstens, M.C.K. Mattingly, L. S. Durkin, R. Hamatsu, O. Bachynska, Els Koffeman, Peter Schleper, A. Stern, P. Kulinski, G. Marini, A. Galas, Wolfram Dietrich Zeuner, A. Bamberger, J.H. Loizides, R. Klanner, N. Coppola, J. Schwartz, G. Grzelak, Claire Gwenlan, F. Januschek, A. Raval, C. Zhou, Danuta Kisielewska, I. A. Korzhavina, A. Bruni, T. P. Stewart, D. Lontkovskyi, C. Youngman, L. Cifarelli, Z. Zulkapli, Enrico Tassi, J. J. Whitmore, A.G. Robertson, Mariusz Przybycien, M. Corradi, I. Kadenko, M. Zolko, M. Basile, K. Horton, Matthew Wing, V. Aushev, Sergei Chekanov, Dirk-Uwe Bartsch, A. Lee, L. Bellagamba, U. Noor, B.O. Zhautykov, B. Kamaluddin, S. Schlenstedt, P. J. Bussey, V. Schönberg, Jonathan Butterworth, John Hart, Vladyslav Libov, Ian Brock, A. Hüttmann, D. H. Saxon, I. Rubinsky, Robert Ciesielski, O. Behnke, A.S. Proskuryakov, S. De Pasquale, A. T. Doyle, R. Aggarwal, P.M. Kooijman, B. A. Dolgoshein, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, Y. Iga, Achim Geiser, S. Fazio, Roberto Sacchi, H. Wolfe, Aharon Levy, Juan Terron, M. Kuze, S. Antonelli, E. Lohrmann, I. Makarenko, M. Ishitsuka, Grzegorz Gach, Tomasz Bold, Zeus (IHEF, IoP, FNWI), UAM. Departamento de Física Teórica, H. ABRAMOWICZ, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, and Z. ZULKAPLI
Subjects: Particle physics, Nuclear and High Energy Physics, HERA, FOS: Physical sciences, 01 natural sciences, Standard Model, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Lepton-nucleon scattering, 0103 physical sciences, Bethe-Heitler processes, Tau-pair production, Invariant mass, ddc:530, High Energy Physics, 010306 general physics, ZEUS Collaboration, Physics, Muon, ZEUS (particle detector), Luminosity (scattering theory), 010308 nuclear & particles physics, Física, Pair production, High Energy Physics::Experiment, Lepton, ZEUS experiment
Abstract: Journal of High Energy Physics 2011.2 (2011): 117 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA), A study of events containing two tau leptons with high transverse momentum has been performed with the ZEUS detector at HERA, using a data sample corresponding to an integrated luminosity of 0.33 fb-1. The tau candidates were identified from their decays into electrons, muons or hadronic jets. The number of tau-pair candidates has been compared with the prediction from the Standard Model, where the largest contribution is expected from Bethe-Heitler processes. The total visible cross section was extracted. Standard Model expectations agree well with the measured distributions, also at high invariant mass of the tau pair.
Published: 2011

31. Measurement of neutral currente±pcross sections at high Bjorkenxwith the ZEUS detector

Author: B. B. Levchenko, Takuya Nobe, J. Szuba, J. F. Martin, Shoichi Yamada, R.C.E. Devenish, T. Schörner-Sadenius, Allen Caldwell, Janna Katharina Behr, Guenter Wolf, B. Brzozowska, Mykhailo Lisovyi, L. M. Shcheglova, L. Stanco, Nazar Stefaniuk, Zainol Abidin Ibrahim, James Ferrando, K. Mujkic, Denys Lontkovskyi, T. Tymieniecka, A. Bruni, A. M. Cooper-Sarkar, Aharon Levy, F. Mohamad Idris, Yu. A. Golubkov, U. Kötz, Aleksander Filip Żarnecki, Nazar Bartosik, E. Paul, P. Stopa, Uta Klein, J. Sztuk-Dambietz, S. Bhadra, R. J. Nowak, D. Szuba, Enrico Tassi, I. Abt, V. Samojlov, O. Kononenko, G. Hartner, I. M. Gregor, Robert Ciesielski, O. Bachynska, Vladyslav Libov, B. Löhr, J. Maeda, T. Tsurugai, Wolfgang Lohmann, B. Foster, S. Dusini, Ulf Behrens, H. Kowalski, Oleksii Turkot, O. Behnke, Ada Solano, J. Grebenyuk, W. Hain, L. K. Gladilin, R. K. Dementiev, V. Aushev, V. Trusov, Ian Brock, J. Malka, Ganna Dolinska, Hanno Perrey, Ozan Arslan, Halina Abramowicz, Sebastian Mergelmeyer, V. Bokhonov, S. Limentani, K. Wichmann, M. Adamus, A. Raval, Danuta Kisielewska, T. P. Stewart, Yu. Onishchuk, Leszek Adamczyk, A.S. Proskuryakov, Y. Aushev, D. H. Saxon, Marcella Capua, Katsuo Tokushuku, D. Notz, D.S. Zotkin, C. D. Catterall, Andrii Gizhko, J. Tomaszewska, P. Roloff, U. Karshon, O. Yu. Lukina, Janusz Chwastowski, N. Kovalchuk, O. Shkola, N. Zakharchuk, R. Shevchenko, A. Longhin, Volodymyr Myronenko, T. Temiraliev, I. Singh, N. Kondrashova, A. Nigro, Achim Geiser, D. Hochman, Alexander Spiridonov, P. J. Bussey, M. Kuze, E. Lohrmann, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, J. Ciborowski, J. Schwartz, Grzegorz Gach, Masaki Ishitsuka, V. Drugakov, I. Kadenko, W. Slominski, Marco Schioppa, I. Makarenko, G. Grzelak, Manjit Kaur, Roman Walczak, Ie. Korol, Valentina Sola, F. Januschek, Lev Khein, Edouard Boos, I. O. Skillicorn, Ewelina Lobodzinska, S. Kananov, N.S. Pokrovskiy, Y. Iga, B.O. Zhautykov, S. Antonelli, Yasunori Yamazaki, Matthew Wing, U. Schneekloth, W. Perlanski, I. A. Korzhavina, G. D'Agostini, A. Garfagnini, O. Zenaiev, O. Gogota, Francois Corriveau, Robert Klanner, A. N. Barakbaev, A. Kotański, Oleg Kuprash, I. Rubinsky, A. Stern, Ingo Bloch, Marcin Pawel Guzik, R. Aggarwal, W. B. Schmidke, Mariusz Przybycien, M. Corradi, O. Viazlo, R. Hori, R. Brugnera, Kerstin Borras, A. Trofymov, W. A. T. Wan Abdullah, K. Olkiewicz, Jan Figiel, A. Iudin, A. Bertolin, L. Zawiejski, M. Turcato, Kunihiro Nagano, P. Kaur, N. Zhmak, and T. Kanno
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Distribution function, Neutral current, Parton, HERA, Reconstruction method, Boson
Abstract: The neutral current ${e}^{\ifmmode\pm\else\textpm\fi{}}p$ cross section has been measured up to values of Bjorken $x\ensuremath{\cong}1$ with the ZEUS detector at HERA using an integrated luminosity of $187\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ of ${e}^{\ensuremath{-}}p$ and $142\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ of ${e}^{+}p$ collisions at $\sqrt{s}=318\text{ }\text{ }\mathrm{GeV}$. Differential cross sections in $x$ and ${Q}^{2}$, the exchanged boson virtuality, are presented for ${Q}^{2}\ensuremath{\ge}725\text{ }\text{ }{\mathrm{GeV}}^{2}$. An improved reconstruction method and greatly increased amount of data allows a finer binning in the high-$x$ region of the neutral current cross section and leads to a measurement with much improved precision compared to a similar earlier analysis. The measurements are compared to Standard Model expectations based on a variety of recent parton distribution functions.
Published: 2014

32. Photoproduction of isolated photons, inclusively and with a jet, at HERA

Author: R.C.E. Devenish, J. Ciborowski, Manjit Kaur, N. Stefaniuk, Katsuo Tokushuku, J. Malka, Roman Walczak, I.O. Skillicorn, K. Mujkic, Janusz Chwastowski, Sebastian Mergelmeyer, Danuta Kisielewska, Ie. Korol, O. Kononenko, T. P. Stewart, B. B. Levchenko, Takuya Nobe, J. F. Martin, Alexander Spiridonov, F. Mohamad Idris, A. Bertolin, J. Behr, Yu. A. Golubkov, E. Paul, N. Zakharchuk, O. Bachynska, A. Bruni, B. Brzozowska, I. A. Korzhavina, V. Aushev, Hanno Perrey, W. Słomiński, Nazar Bartosik, Enrico Tassi, J. Maeda, M. Turcato, R. Ciesielski, V. Myronenko, L. Zawiejski, K. Wichmann, Ulf Behrens, H. Kowalski, M. Adamus, Yu. Onishchuk, J. Szuba, A. Kotański, O. Kuprash, Jan Figiel, D. Lontkovskyi, S. Bhadra, U. Klein, V. Sola, N. Kondrashova, V. Samojlov, Ganna Dolinska, Ozan Arslan, O. Yu. Lukina, D.H. Saxon, A. N. Barakbaev, A. Raval, A. Iudin, V. Trusov, M. Lisovyi, S. Yamada, Marco Schioppa, R. Shevchenko, A. Longhin, P. Stopa, Leszek Adamczyk, P. Kaur, A. Stern, Allen Caldwell, A. Nigro, W. A. T. Wan Abdullah, I. Abt, O. Zenaiev, Zainol Abidin Ibrahim, W. Perlanski, B. Löhr, T. Tymieniecka, J. Ferrando, J. Grebenyuk, V. Drugakov, E. Lobodzinska, Lev Khein, U. Kötz, D. Notz, F. Corriveau, G. Grzelak, T. Tsurugai, Ada Solano, Masaki Ishitsuka, Andrii Gizhko, V. Bokhonov, K. Olkiewicz, W. Hain, Aleksander Filip Żarnecki, F. Januschek, Wolfgang Lohmann, S. Limentani, D.S. Zotkin, Edouard Boos, S. Kananov, R. Hori, R. J. Nowak, U. Karshon, I. Kadenko, D. Szuba, C. D. Catterall, J. Tomaszewska, I. Singh, Thomas Schörner-Sadenius, Y. Yamazaki, L. M. Shcheglova, Y. Aushev, O. Turkot, N. Kovalchuk, Olaf Behnke, O. Shkola, L. Stanco, Marcella Capua, Peter Bussey, G. D'Agostini, O. Gogota, N. Zhmak, Gy. Wolf, T. Kanno, R. Brugnera, Kerstin Borras, N.S. Pokrovskiy, B. Foster, S. Dusini, G. Hartner, K. Nagano, J. Schwartz, W. B. Schmidke, E. Lohrmann, R. Klanner, Amanda Cooper-Sarkar, L. K. Gladilin, R. K. Dementiev, Halina Abramowicz, I. Gregor, A.S. Proskuryakov, Achim Geiser, J. Sztuk-Dambietz, S. Antonelli, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, Vladyslav Libov, Ian Brock, Matthew Wing, P. Roloff, T. Temiraliev, I. Makarenko, Y. Iga, B.O. Zhautykov, Aharon Levy, A. Garfagnini, D. Hochman, I. Rubinsky, Ingo Bloch, Mariusz Przybycien, M. Corradi, O. Viazlo, A. Trofymov, Marcin Pawel Guzik, U. Schneekloth, R. Aggarwal, M. Kuze, Grzegorz Gach, University of Warsaw, Faculty of Physics, and Łódź University
Subjects: perturbation theory [quantum chromodynamics], Particle physics, Nuclear and High Energy Physics, Photon, Astrophysics::High Energy Astrophysical Phenomena, HERA, ZEUS, FOS: Physical sciences, rapidity dependence, High Energy Physics - Experiment, isolated production [photon], Nuclear physics, High Energy Physics - Experiment (hep-ex), measured [differential cross section], photoproduction [photon], ddc:530, associated production [jet], Nuclear Experiment, 318 GeV-cms, Physics, Jet (fluid), ZEUS (particle detector), Luminosity (scattering theory), interaction [electron p], Deep inelastic scattering, DESY HERA Stor, Transverse plane, Pseudorapidity, dependence [transverse energy], High Energy Physics::Experiment, 1 [higher-order], experimental results
Abstract: The photoproduction of isolated photons, both inclusive and together with a jet, has been measured with the ZEUS detector at HERA using an integrated luminosity of $374\, \mathrm{pb}^{-1}$. Differential cross sections are presented in the isolated-photon transverse-energy and pseudorapidity ranges $6 < E_T^��< 15$ GeV and $-0.7 < ��^��< 0.9,$ and for jet transverse-energy and pseudorapidity ranges $4 < E_T^{jet} < 35$ GeV and $-1.5 < ��^{jet} < 1.8,$ for exchanged-photon virtualities $Q^2 < 1$ GeV$^2$. Differential cross sections are also presented for inclusive isolated-photon production as functions of the transverse energy and pseudorapidity of the photon. Higher-order theoretical calculations are compared to the results., 19 pages, 7 figures. Small changes in published version
Published: 2014

33. Further studies of the photoproduction of isolated photons with a jet at HERA

Author: E. Lobodzinska, Uta Klein, Thomas Schörner-Sadenius, Marcella Capua, Ada Solano, V. Bokhonov, G. D'Agostini, A. N. Barakbaev, M. Kuze, L. M. Shcheglova, S. Limentani, O. Gogota, E. Lohrmann, J. Szuba, Robert Klanner, A. Stern, O. Kononenko, I. Singh, N. Zhmak, Gy. Wolf, T. Kanno, O. Bachynska, Olaf Behnke, F. Mohamad Idris, Achim Geiser, Grzegorz Gach, V. Aushev, K. Wichmann, M. Adamus, Hanno Perrey, James Ferrando, I. Gregor, L. Stanco, O. Yu. Lukina, Allen Caldwell, A. Garfagnini, A. Trofymov, N. Kondrashova, Zainol Abidin Ibrahim, Yu. Onishchuk, T. Tymieniecka, U. Kötz, B. B. Levchenko, S. Bhadra, V. Samojlov, W. A. T. Wan Abdullah, R. Shevchenko, A. Longhin, B. Löhr, R. J. Nowak, Masaki Ishitsuka, A. Nigro, J. Maeda, S. Antonelli, V. Myronenko, Mariusz Przybycien, M. Corradi, O. Viazlo, W. B. Schmidke, J. F. Martin, D. Notz, Francois Corriveau, Leszek Adamczyk, R.C.E. Devenish, A. Kotański, N.S. Pokrovskiy, D.S. Zotkin, T. Temiraliev, C. D. Catterall, Ganna Dolinska, Robert Ciesielski, I. Abt, Marco Schioppa, T. Tsurugai, B.O. Zhautykov, Sebastian Mergelmeyer, W. Perlanski, O. Shkola, B. Foster, S. Dusini, Ozan Arslan, K. Olkiewicz, Marcin Pawel Guzik, U. Schneekloth, W. Hain, J. Tomaszewska, N. Stefaniuk, Edouard Boos, R. Aggarwal, Wolfgang Lohmann, B. Brzozowska, R. Hori, I. Makarenko, A. Raval, Y. Iga, K. Mujkic, I. Rubinsky, Ingo Bloch, A.S. Proskuryakov, L. K. Gladilin, R. K. Dementiev, I. O. Skillicorn, D. Szuba, Takuya Nobe, G. Hartner, Katsuo Tokushuku, V. Drugakov, W. Słomiński, Ulf Behrens, Amanda Cooper-Sarkar, Y. Aushev, Lev Khein, R. Brugnera, H. Kowalski, D. Lontkovskyi, N. Kovalchuk, J. Schwartz, S. Kananov, Kerstin Borras, Halina Abramowicz, Peter Bussey, V. Trusov, G. Grzelak, J. Behr, S. Yamada, Janusz Chwastowski, O. Kuprash, Jan Figiel, F. Januschek, A. Iudin, M. Lisovyi, A. Bruni, Nazar Bartosik, Enrico Tassi, J. Ciborowski, Manjit Kaur, Yu. A. Golubkov, E. Paul, J. Malka, Roman Walczak, J. Sztuk-Dambietz, O. Turkot, Andrii Gizhko, A. Bertolin, U. Karshon, L. Zawiejski, M. Turcato, Kunihiro Nagano, Yuji Yamazaki, P. Kaur, I. Kadenko, Alexander Spiridonov, Danuta Kisielewska, Ie. Korol, T. P. Stewart, Valentina Sola, I. A. Korzhavina, Matthew Wing, N. Zakharchuk, Philipp Roloff, P. Stopa, O. Zenaiev, Aleksander Filip Żarnecki, J. Grebenyuk, D. Hochman, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, Aharon Levy, Vladyslav Libov, Ian Brock, D. H. Saxon, University of Warsaw, Faculty of Physics, and Lódz University
Subjects: Particle physics, Nuclear and High Energy Physics, Photon, Astrophysics::High Energy Astrophysical Phenomena, HERA, ZEUS, Lepton-Nucleon Scattering, FOS: Physical sciences, measured [cross section], Photon energy, 7. Clean energy, High Energy Physics - Experiment, rapidity dependence, energy dependence, Nuclear physics, isolated production [photon], High Energy Physics - Experiment (hep-ex), photoproduction [photon], ddc:530, associated production [jet], Nuclear Experiment, Monte Carlo, 318 GeV-cms, Quantum chromodynamics, Physics, Jet (fluid), ZEUS (particle detector), Luminosity (scattering theory), angular correlation, QCD, DESY HERA Stor, difference [rapidity], Pseudorapidity, Photon production, deep inelastic scattering [electron p], dependence [transverse energy], High Energy Physics::Experiment, experimental results
Abstract: In this extended analysis using the ZEUS detector at HERA, the photoproduction of isolated photons together with a jet is measured for different ranges of the fractional photon energy, $x_��^{\mathrm{meas}}$, contributing to the photon-jet final state. Cross sections are evaluated in the photon transverse-energy and pseudorapidity ranges $6 < E_T^�� < 15$ GeV and $-0.7 < ��^�� < 0.9$, and for jet transverse-energy and pseudorapidity ranges $4 < E_T^{\rm jet} < 35$ GeV and $-1.5 < ��^{\rm jet} < 1.8$, for an integrated luminosity of 374 $\mathrm{pb}^{-1}$. The kinematic observables studied comprise the transverse energy and pseudorapidity of the photon and the jet, the azimuthal difference between them, the fraction of proton energy taking part in the interaction, and the difference between the pseudorapidities of the photon and the jet. Higher-order theoretical calculations are compared to the results., 26 pages, 7 figures. Updated with small corrections from journal referee and journal reference
Published: 2014

34. Measurement of the Luminosity in the ZEUS Experiment at HERA II

Author: Y. Ning, C. Buettner, K. Olkiewicz, W. Schmidke, J. Sztuk-Dambietz, V. Drugakov, D. Kisielewska, Jan Figiel, M. Gil, P. Borzemski, J. Andruszkow, P. Stopa, Tomasz Bold, W. Daniluk, L. Suszycki, Wolfgang Lohmann, Z. Ren, F. Januschek, F. J. Sciulli, U. Klein, W. Wierba, L. Zawiejski, J. Pieron, M. Helbich, Janusz Chwastowski, W. Ruchlewicz, A. Kotarba, U. Schneekloth, S. Paganis, Allen Caldwell, P. Jurkiewicz, M.B. Przybycien, J. Sutiak, A. Eskreys, L. Adamczyk, K. Oliwa, and A. Galas
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, Physics - Instrumentation and Detectors, neutral current, Physics::Instrumentation and Detectors, energy spectrum [bremsstrahlung], Astrophysics::High Energy Astrophysical Phenomena, Synchrotron radiation, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Radiation, Scintillator, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), calorimeter, measurement methods [luminosity], ddc:530, Instrumentation, scintillation counter, Physics, Spectrometer, Detector, Bremsstrahlung, shielding [synchrotron radiation], ZEUS, Monte Carlo [numerical calculations], HERA, Instrumentation and Detectors (physics.ins-det), magnetic spectrometer, bremsstrahlung [electron], Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract: The luminosity in the ZEUS detector was measured using photons from electron bremsstrahlung. In 2001 the HERA collider was upgraded for operation at higher luminosity. At the same time the luminosity-measuring system of the ZEUS experiment was modified to tackle the expected higher photon rate and synchrotron radiation. The existing lead-scintillator calorimeter was equipped with radiation hard scintillator tiles and shielded against synchrotron radiation. In addition, a magnetic spectrometer was installed to measure the luminosity independently using photons converted in the beam-pipe exit window. The redundancy provided a reliable and robust luminosity determination with a systematic uncertainty of 1.7%. The experimental setup, the techniques used for luminosity determination and the estimate of the systematic uncertainty are reported., Comment: 25 pages, 11 figures
Published: 2013
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35. Inclusive-jet photoproduction at HERA and determination of α s

Author: B. B. Levchenko, Jose Repond, J. F. Martin, H.-P. Jakob, Leszek Adamczyk, E. Lobodzinska, M.I. Ferrero, R. Brugnera, B. Brzozowska, W. H. Smith, F. J. Sciulli, Katsuo Tokushuku, V.V. Sosnovtsev, Kerstin Borras, K. Horton, G. DʼAgostini, D. Gladkov, F. Karstens, Dong-Chul Son, Marco Schioppa, P. G. Pelfer, N. Kondrashova, Thomas Schörner-Sadenius, Mário Costa, Y. Ning, Janusz Chwastowski, Hartmut Stadie, Matthew Wing, Rosario Nania, R.C.E. Devenish, J. Schwartz, G. Grzelak, P. Roloff, A. Verbytskyi, C. Blohm, Francois Corriveau, Claire Gwenlan, Y. Eisenberg, A. M. Cooper-Sarkar, F. Januschek, S. De Pasquale, F. Mohamad Idris, A.G. Yagües-Molina, A. Kotański, I. I. Katkov, Allen Caldwell, C. Zhou, Yu. A. Golubkov, E. Paul, Matthew Forrest, A.S. Proskuryakov, Alexander Tapper, R. Walczak, D. Notz, Sergei Chekanov, A. Bruni, Giuseppe Barbagli, J. Tomaszewska, I. Makarenko, Zainol Abidin Ibrahim, D.S. Zotkin, Dirk-Uwe Bartsch, J. Del Peso, M. Derrick, O. Yu. Lukina, B. Reisert, Marcello Bindi, B. Pawlik, S. Fang, Sebastian Mergelmeyer, P.M. Kooijman, Takuya Nobe, D.D. Reeder, Nazar Bartosik, Enrico Tassi, J. J. Whitmore, K. Mujkic, T. Tymieniecka, C. D. Catterall, T. W. Jones, Ada Solano, A. Longhin, Achim Geiser, V. Bokhonov, A. Lee, L. Bellagamba, I. O. Skillicorn, A. Raval, Michele Arneodo, A. N. Barakbaev, N. Brümmer, Krzysztof Piotrzkowski, S. Limentani, R. Yoshida, T. Tsurugai, Ramoona Shehzadi, Kenneth Long, Juan Terron, Y. Iga, U. Kötz, A. Nigro, G. Bari, J. Behr, A. Stern, I. Singh, Iwona Grabowska-Bold, Wolfgang Lohmann, M. Jüngst, Ben Bylsma, T. Theedt, D. Szuba, Olaf Behnke, J. Maeda, Giovanna Bruni, Masaki Ishitsuka, S. Antonelli, A. Antonov, J. M. Pawlak, A.G. Robertson, G. Hartner, Mariusz Przybycien, M. Corradi, O. Viazlo, H. Hartmann, Yuji Yamazaki, Hanno Perrey, O. Zabiegalov, A. Garfagnini, Claudia Glasman, O. Kuprash, Jan Figiel, V. Drugakov, C. Youngman, R. J. Nowak, K. Oliver, W. Słomiński, Ulf Behrens, Federico Cindolo, H. Kowalski, R. Ciesielski, Elisabetta Gallo, Lev Khein, W. Perlanski, G. F. Susinno, G. Sartorelli, Shima Shimizu, B. Löhr, U. Samson, U. Klein, O. Turkot, S. Kitamura, Yu. Onishchuk, S. Kananov, N. Coppola, G. Grigorescu, Halina Abramowicz, D. Lontkovskyi, U. Noor, Tomasz Bold, A. Pellegrino, S. Miglioranzi, V. Trusov, M. Lisovyi, B.O. Zhautykov, O. Kononeko, H.G.J.M. Tiecke, A. Parenti, Fernando Barreiro, W. B. Schmidke, M.C.K. Mattingly, L. S. Durkin, P.F. Ermolov, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, S.I. Suchkov, John Hart, S. Bhadra, R. Hamatsu, O. Bachynska, L. M. Shcheglova, A. Montanari, G. Dolinska, James Ferrando, Els Koffeman, I. Gregor, D. Bot, Peter Schleper, K. Papageorgiu, L. Stanco, R. Ingbir, N. Okazaki, Pawel Plucinski, N. Zhmak, K. Wrona, Gy. Wolf, I. Rubinsky, S. Magill, Didar Dobur, T. Kanno, B. Foster, S. Dusini, Alexander Savin, K. Olkiewicz, John Morris, H. Wolfe, M. Adamus, G. Marini, Nazar Stefaniuk, J. Y. Kim, F. Dal Corso, Y.D. Ri, Wolfram Dietrich Zeuner, A. Bamberger, J. Szuba, Pietro Antonioli, Luisa Cifarelli, L. K. Gladilin, R. K. Dementiev, Antonino Zichichi, R. Hori, I. Abt, Y. Aushev, E. Hilger, E.G. Boos, V. Schönberg, Andrea Contin, T. Namsoo, Marcella Capua, Kyrylo Bondarenko, T. Y. Ling, O. Gogota, Rainer Mankel, N.N. Vlasov, B.Y. Oh, Robert Klanner, N.S. Pokrovskiy, Zukhaimira Zolkapli, M. Wlasenko, V. Monaco, W. Hain, A. Eskreys, S. Yamada, A. Gizhko, M. Kuze, E. Lohrmann, Anna Mastroberardino, M. Vázquez, S. Schlenstedt, M. Ruspa, Grzegorz Gach, Marcin Pawel Guzik, U. Schneekloth, R. Aggarwal, A. Keramidas, A. Bertolin, L. Zawiejski, M. Turcato, Kunihiro Nagano, B. Musgrave, P. Kaur, A. Stifutkin, J. Ciborowski, Manjit Kaur, J. Malka, A. Polini, Zhongliang Ren, J. Sztuk-Dambietz, Alexander Spiridonov, I. A. Melzer-Pellmann, B. Kahle, V. Aushev, Roberto Carlin, Valentina Sola, D. Hochman, P. J. Bussey, L. Suszycki, Danuta Kisielewska, U. Karshon, D. Boscherini, T. P. Stewart, P. Stopa, O. Zenaiev, Anselmo Margotti, J. Grebenyuk, L.W. Wiggers, I. Kadenko, Ie. Korol, E. Brownson, A. T. Doyle, M. Basile, T. Haas, I. A. Korzhavina, B. A. Dolgoshein, Orel Gueta, A. Galas, Vladyslav Libov, Aleksander Filip Żarnecki, Ian Brock, A. Hüttmann, D. H. Saxon, P. Göttlicher, S. Fazio, Roberto Sacchi, Aharon Levy, I. Gialas, and Zeus (IHEF, IoP, FNWI)
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, HERA, Deep inelastic scattering, Kinetic energy, 01 natural sciences, 7. Clean energy, Particle identification, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Quantum field theory, 010306 general physics
Abstract: Inclusive-jet cross sections have been measured in the reaction e p → e + jet + X for photon virtuality Q 2 1 GeV 2 and γp centre-of-mass energies in the region 142 W γ p 293 GeV with the ZEUS detector at HERA using an integrated luminosity of 300 pb − 1 . Jets were identified using the k T , anti- k T or SIScone jet algorithms in the laboratory frame. Single-differential cross sections are presented as functions of the jet transverse energy, E T jet , and pseudorapidity, η jet , for jets with E T jet > 17 GeV and − 1 η jet 2.5 . In addition, measurements of double-differential inclusive-jet cross sections are presented as functions of E T jet in different regions of η jet . Next-to-leading-order QCD calculations give a good description of the measurements, except for jets with low E T jet and high η jet . The influence of non-perturbative effects not related to hadronisation was studied. Measurements of the ratios of cross sections using different jet algorithms are also presented; the measured ratios are well described by calculations including up to O ( α s 2 ) terms. Values of α s ( M Z ) were extracted from the measurements and the energy-scale dependence of the coupling was determined. The value of α s ( M Z ) extracted from the measurements based on the k T jet algorithm is α s ( M Z ) = 0.1206 − 0.0022 + 0.0023 ( exp . ) − 0.0035 + 0.0042 ( th . ) ; the results from the anti- k T and SIScone algorithms are compatible with this value and have a similar precision.
Published: 2012

36. Multi-lepton production and a search for doubly-charged Higgs at HERA

Author: J Sztuk-Dambietz
Subjects: Physics, History, Particle physics, Muon, Physics beyond the Standard Model, High Energy Physics::Phenomenology, Yukawa potential, HERA, Computer Science Applications, Education, Standard Model, Nuclear physics, symbols.namesake, symbols, Higgs boson, High Energy Physics::Experiment, Higgs mechanism, Lepton
Abstract: Events with two or more leptons (electrons or muons) with high transverse momentum are measured in electron-proton collisions at HERA using the data samples collected in the period 1994-2007. Yields of di-lepton and tri-lepton events are investigated and a general good agreement is found with the Standard Model (SM) prediction. Multi-lepton events at high transverse momenta, where the SM prediction is low, are of special interest as these signature might reveal new physics beyond the Standard Model. An example is the single production of a doubly-charged Higgs boson (H±±) decaying into a high mass pair of same charge leptons. This possibility has been investigated and H±± decays involving electrons, muons and taus are considered. No evidence for doubly-charged Higgs production is observed and mass-dependent upper limits are derived on the Yukawa couplings hij of the Higgs boson to leptons of flavour i and j.
Published: 2008

37. Scaled momentum distributions for $ K_S^0 $ KS and $ \Lambda /\bar{\Lambda } $ in DIS at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E. G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, G. DOLINSKA, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I. A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´ NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK DAMBIETZ, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D. S. ZOTKIN, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: Quark, Particle physics, Nuclear and High Energy Physics, Photon, Hadron, Monte Carlo method, FOS: Physical sciences, Lambda, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ddc:530, 010306 general physics, Nuclear Experiment, Strange hadron production, Quantum chromodynamics, Physics, Bjorken scaling, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, lepton-nucleon scattering, HERA, 16. Peace & justice, Gluon, High Energy Physics::Experiment, ZEUS experiment
Abstract: Scaled momentum distributions for the strange hadrons K0s and Lambda/bar Lambda were measured in deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 330 pb-1. The evolution of these distributions with the photon virtuality, Q2, was studied in the kinematic region 10, Comment: 34 pages, 8 figures
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38. Erratum: Measurement of D*± production in deep inelastic scattering at HERA

Author: S. Fang, Sebastian Mergelmeyer, J. Ciborowski, A. Eskreys, I. Kadenko, J. Schwartz, Manjit Kaur, Ie. Korol, G. Grzelak, D. Notz, D.S. Zotkin, Alexander Spiridonov, I. A. Melzer-Pellmann, C. D. Catterall, Claire Gwenlan, F. Januschek, A. Polini, L. M. Shcheglova, S. De Pasquale, T. W. Jones, F. J. Sciulli, H.-P. Jakob, P. Göttlicher, Michele Arneodo, Yuji Yamazaki, Igor Katkov, J. Tomaszewska, Valentina Sola, R. Brugnera, L. Suszycki, Janna Katharina Behr, Zhongliang Ren, A. Trofymov, Kerstin Borras, W. Perlanski, G. F. Susinno, Dong-Chul Son, L. Stanco, R. Ingbir, A. M. Cooper-Sarkar, Yu. A. Golubkov, E. Paul, B. B. Levchenko, I. A. Korzhavina, Denys Lontkovskyi, J. Sztuk-Dambietz, A. Bruni, N. Okazaki, T. Namsoo, M. Jüngst, Ben Bylsma, D. Szuba, Rosario Nania, G. Hartner, I. M. Gregor, A. Raval, J. F. Martin, Danuta Kisielewska, T. P. Stewart, C. Youngman, Uta Klein, C. Blohm, D. Gladkov, Nazar Bartosik, Enrico Tassi, J. J. Whitmore, M. Vázquez, John Morris, G. Bari, J. Maeda, Giovanna Bruni, Hanno Perrey, N. Zakharchuk, H. Hartmann, G. D'Agostini, Guenter Wolf, F. Mohamad Idris, Giuseppe Barbagli, I. Makarenko, Y. Iga, Anna Mastroberardino, S. Schlenstedt, D.D. Reeder, P. Stopa, B. Brzozowska, I. O. Skillicorn, Philipp Roloff, Hartmut Stadie, Marcin Pawel Guzik, T. Y. Ling, Elisabetta Gallo, Yu. Onishchuk, B. Kahle, O. Gogota, Jan Figiel, Ramoona Shehzadi, E. Brownson, A. T. Doyle, Roberto Carlin, Ganna Dolinska, Ozan Arslan, R. Yoshida, R. Aggarwal, Halina Abramowicz, O. Yu. Lukina, B. Reisert, Robert Klanner, Leszek Adamczyk, B. A. Dolgoshein, Orel Gueta, A. Longhin, Katsuo Tokushuku, F. Dal Corso, A. Iudin, G. Grigorescu, Anselmo Margotti, Andrii Verbytskyi, A. Keramidas, Marta Ruspa, J. Grebenyuk, Y. Eisenberg, L.W. Wiggers, Janusz Chwastowski, A. Nigro, A. Bertolin, A.G. Robertson, Takuya Nobe, M. Kuze, P.F. Ermolov, R. Ciesielski, J. M. Pawlak, A. Galas, Aleksander Filip Żarnecki, Antonino Zichichi, Krzysztof Piotrzkowski, Iwona Grabowska-Bold, S. Fazio, Mariusz Przybycien, R. Walczak, Roberto Sacchi, K. Mujkic, F. Karstens, E. Lohrmann, R. Hori, A. Garfagnini, M. Corradi, O. Viazlo, Andrii Gizhko, A. Antonov, Tobias M. Haas, L. Zawiejski, W. Slominski, Kr Long, James Ferrando, U. Karshon, M. Turcato, Grzegorz Gach, C. Uribe-Estrada, Aharon Levy, D. Boscherini, Kunihiro Nagano, U. Samson, M. Wlasenko, H.G.J.M. Tiecke, V. Sosnovtsev, Y. D. Ri, R.C.E. Devenish, Mykhailo Lisovyi, Shinichi Shimizu, S. Magill, B. Musgrave, T. Schörner-Sadenius, A. E. Nuncio-Quiroz, I. Gialas, P. Kaur, W. A. T. Wan Abdullah, Marco Schioppa, S. Yamada, P. G. Pelfer, D. Bot, B.O. Zhautykov, Marco Costa, A. Stifutkin, G. Sartorelli, O. Turkot, Vladyslav Libov, Jose Repond, T. Kanno, K. Olkiewicz, Alexander Savin, John Hart, H. Wolfe, Ian Brock, V. Schönberg, J. Szuba, O. Zenaiev, Oleg Kuprash, I. Rubinsky, A. Hüttmann, W. H. Smith, N. Zhmak, Pawel Plucinski, M. Basile, D. H. Saxon, Y. Ning, I. Abt, W. Hain, S. Miglioranzi, Nazar Stefaniuk, E. Hilger, N. Brümmer, E.G. Boos, T. Tsurugai, R. Mankel, Wolfgang Lohmann, B.Y. Oh, Ulf Behrens, Federico Cindolo, H. Kowalski, N.S. Pokrovskiy, Zukhaimira Zolkapli, V. Trusov, O. Kononenko, A. Pellegrino, M.C.K. Mattingly, L. S. Durkin, R. Hamatsu, O. Bachynska, Els Koffeman, Peter Schleper, K. Wichmann, M. Adamus, G. Marini, Wolfram Dietrich Zeuner, A. Bamberger, Allen Caldwell, Zainol Abidin Ibrahim, M. Derrick, T. Tymieniecka, A. Parenti, U. Kötz, R. J. Nowak, Matthew Wing, V. Aushev, Sergei Chekanov, Dirk-Uwe Bartsch, A. Lee, L. Bellagamba, D. Hochman, P. J. Bussey, A.G. Yagües-Molina, J. Del Peso, Fernando Barreiro, Ada Solano, S.I. Suchkov, S. Limentani, Didar Dobur, I. Singh, Y. Aushev, Alessandro Montanari, M. I. Ferrero, N. Kovalchuk, Ewelina Lobodzinska, U. Schneekloth, N. Coppola, S. Kitamura, Francois Corriveau, W. B. Schmidke, A. Kotański, K. Papageorgiu, Marcello Bindi, B. Pawlik, A. N. Barakbaev, V. Bokhonov, Alexander Tapper, Vincenzo Monaco, A. Stern, P.M. Kooijman, Achim Geiser, Juan Terron, S. Antonelli, T. Theedt, O. Behnke, A.S. Proskuryakov, Tomasz Bold, S. Bhadra, J. Malka, Andrea Contin, Marcella Capua, N.N. Vlasov, Claudia Glasman, V. Drugakov, B. Löhr, Lev Khein, K. Wrona, B. Foster, S. Dusini, S. Kananov, J. Y. Kim, Pietro Antonioli, Luisa Cifarelli, L. K. Gladilin, R. K. Dementiev, N. Kondrashova, Masaki Ishitsuka, University of Warsaw, Faculty of Physics, Lódz University, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, HERA, Deep inelastic scattering
Abstract: The ZEUS collaboration In the analysis for our paper on D* production, the beauty contribution was erroneously subtracted twice in the extraction of the reduced cross sections. This affected tables 9 and 10 as well as figures 9 and 10 that are reproduced here in a corrected version. The kinematical acceptances shown in the last colum of table 10 have been also corrected since they were calculated with a different value for the charm fragmentation fraction than what was used in the rest of the analysis and reported in the text. A misprint was found in table 7: the value in the third column at four rows from the bottom should read 49.8, not 59.8. Finally, one of the authors was missing from the author list: C. Uribe-Estrada (Department of Physics, University of Oxford, United Kingdom). Article funded by SCOAP3
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39. Measurement of isolated photons accompanied by jets in deep inelastic ep scattering

Author: Abramowicz, H, Abt, I, Adamczyk, L, Adamus, M, Aggarwal, R, Antonelli, S, Antonioli, P, Antonov, A, Arneodo, M, Arslan, O, Aushev, V, Aushev, Y, Bachynska, O, Bamberger, A, Barakbaev, AN, Barbagli, G, Bari, G, Barreiro, F, Bartosik, N, Bartsch, D, Basile, M, Behnke, O, Behr, J, Behrens, U, Bellagamba, L, Bertolin, A, Bhadra, S, Bindi, M, Blohm, C, Bokhonov, V, Bold, T, Bondarenko, K, Boos, EG, Borras, K, Boscherini, D, Bot, D, Brock, I, Brownson, E, Brugnera, R, Bruemmer, N, Bruni, A, Bruni, G, Brzozowska, B, Bussey, PJ, Bylsma, B, Caldwell, A, Capua, M, Carlin, R, Catterall, CD, Chekanov, S, Chwastowski, J, Ciborowski, J, Ciesielski, R, Cifarelli, L, Cindolo, F, Contin, A, Cooper-Sarkar, AM, Coppola, N, Corradi, M, Corriveau, F, Costa, M, D'Agostini, G, Dal Corso, F, del Peso, J, Dementiev, RK, De Pasquale, S, Derrick, M, Devenish, RCE, Dobur, D, Dolgoshein, BA, Dolinska, G, Doyle, AT, Drugakov, V, Durkin, LS, Dusini, S, Eisenberg, Y, Ermolov, PF, Eskreys, A, Fang, S, Fazio, S, Ferrando, J, Ferrero, MI, Figiel, J, Forrest, M, Foster, B, Gach, G, Galas, A, Gallo, E, Garfagnini, A, Geiser, A, Gialas, I, Gizhko, A, Gladilin, LK, Gladkov, D, Glasman, C, Gogota, O, Golubkov, YA, Goettlicher, P, Grabowska-Bold, I, Grebenyuk, J, Gregor, I, Grigorescu, G, Grzelak, G, Gueta, O, Guzik, M, Gwenlan, C, Haas, T, Hain, W, Hamatsu, R, Hart, JC, Hartmann, H, Hartner, G, Hilger, E, Hochman, D, Hori, R, Huettmann, A, Ibrahim, ZA, Iga, Y, Ingbir, R, Ishitsuka, M, Jakob, H-P, Januschek, F, Jones, TW, Juengst, M, Kadenko, I, Kahle, B, Kananov, S, Kanno, T, Karshon, U, Karstens, F, Katkov, II, Kaur, M, Kaur, P, Keramidas, A, Khein, LA, Kim, JY, Kisielewska, D, Kitamura, S, Klanner, R, Klein, U, Koffeman, E, Kondrashova, N, Kononenko, O, Kooijman, P, Korol, I, Korzhavina, IA, Kotanski, A, Koetz, U, Kowalski, H, Kuprash, O, Kuze, M, Lee, A, Levchenko, BB, Levy, A, Libov, V, Limentani, S, Ling, TY, Lisovyi, M, Lobodzinska, E, Lohmann, W, Loehr, B, Lohrmann, E, Long, KR, Longhin, A, Lontkovskyi, D, Lukina, OY, Maeda, J, Magill, S, Makarenko, I, Malka, J, Mankel, R, Margotti, A, Marini, G, Martin, JF, Mastroberardino, A, Mattingly, MCK, Melzer-Pellmann, I-A, Mergelmeyer, S, Miglioranzi, S, Idris, FM, Monaco, V, Montanari, A, Morris, JD, Mujkic, K, Musgrave, B, Nagano, K, Namsoo, T, Nania, R, Nigro, A, Ning, Y, Nobe, T, Notz, D, Nowak, RJ, Nuncio-Quiroz, AE, Oh, BY, Okazaki, N, Olkiewicz, K, Onishchuk, Y, Papageorgiu, K, Parenti, A, Paul, E, Pawlak, JM, Pawlik, B, Pelfer, PG, Pellegrino, A, Perlanski, W, Perrey, H, Piotrzkowski, K, Plucinski, P, Pokrovskiy, NS, Polini, A, Proskuryakov, AS, Przybycien, M, Raval, A, Reeder, DD, Reisert, B, Ren, Z, Repond, J, Ri, YD, Robertson, A, Roloff, P, Rubinsky, I, Ruspa, M, Sacchi, R, Samson, U, Sartorelli, G, Savin, AA, Saxon, DH, Schioppa, M, Schlenstedt, S, Schleper, P, Schmidke, WB, Schneekloth, U, Schoenberg, V, Schoerner-Sadenius, T, Schwartz, J, Sciulli, F, Shcheglova, LM, Shehzadi, R, Shimizu, S, Singh, I, Skillicorn, IO, Slominski, W, Smith, WH, Sola, V, Solano, A, Son, D, Sosnovtsev, V, Spiridonov, A, Stadie, H, Stanco, L, Stefaniuk, N, Stern, A, Stewart, TP, Stifutkin, A, Stopa, P, Suchkov, S, Susinno, G, Suszycki, L, Sztuk-Dambietz, J, Szuba, D, Szuba, J, Tapper, AD, Tassi, E, Terron, J, Theedt, T, Tiecke, H, Tokushuku, K, Tomaszewska, J, Trusov, V, Tsurugai, T, Turcato, M, Turkot, O, Tymieniecka, T, Vazquez, M, Verbytskyi, A, Viazlo, O, Vlasov, NN, Walczak, R, Abdullah, WATW, Whitmore, JJ, Wichmann, K, Wiggers, L, Wing, M, Wlasenko, M, Wolf, G, Wolfe, H, Wrona, K, Yaguees-Molina, AG, Yamada, S, Yamazaki, Y, Yoshida, R, Youngman, C, Zabiegalov, O, Zarnecki, AF, Zawiejski, L, Zenaiev, O, Zeuner, W, Zhautykov, BO, Zhmak, N, Zichichi, A, Zolkapli, Z, Zotkin, DS, Collaboration, ZEUS, UAM. Departamento de Física Teórica, H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A.N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, K. Bondarenko, E.G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P.J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C.D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A.M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. DʼAgostini, F. Dal Corso, J. del Peso, R.K. Dementiev, S. De Pasquale, M. Derrick, R.C.E. Devenish, D. Dobur, B.A. Dolgoshein, G. Dolinska, A.T. Doyle, V. Drugakov, L.S. Durkin, S. Dusini, Y. Eisenberg, P.F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M.I. Ferrero, J. Figiel, M. Forrest, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L.K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu.A. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J.C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z.A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H.-P. Jakob, F. Januschek, T.W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I.I. Katkov, M. Kaur, P. Kaur, A. Keramida, L.A. Khein, J.Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I.A. Korzhavina, A. Kotański, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B.B. Levchenko, A. Levy, V. Libov, S. Limentani, T.Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K.R. Long, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J.F. Martin, A. Mastroberardino, M.C.K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J.D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R.J. Nowak, A.E. Nuncio-Quiroz, B.Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J.M. Pawlak, B. Pawlik, P.G. Pelfer, A. Pellegrino, W. Perlański, H. Perrey, K. Piotrzkowski, P. Pluciński, N.S. Pokrovskiy, A. Polini, A.S. Proskuryakov, M. Przybycień, A. Raval, D.D. Reeder, B. Reisert, Z. Ren, J. Repond, Y.D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A.A. Savin, D.H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W.B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L.M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I.O. Skillicorn, W. Słomiński, W.H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T.P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A.D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N.N. Vlasov, R. Walczak, W.A.T. Wan Abdullah, J.J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A.G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B.O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, D.S. Zotkin, Zeus (IHEF, IoP, FNWI), and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, Astrophysics::High Energy Astrophysical Phenomena, ZEUS, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, E-T PHOTONS, CROSS-SECTION, P(P)OVER-BAR COLLISIONS, PROMPT PHOTONS, TRANSVERSE-MOMENTUM, HADRON-COLLISIONS, ROOT-S=1.8 TEV, MONTE-CARLO, Isolated photon, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Jets, 0103 physical sciences, ddc:530, Nuclear Experiment, 010306 general physics, Physics, ZEUS (particle detector), Luminosity (scattering theory), 010308 nuclear & particles physics, Scattering, Física, Perturbative QCD, HERA, Pseudorapidity, High Energy Physics::Experiment, ZEUS experiment
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, The production of isolated high-energy photons accompanied by jets has been measured in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326 pb−1. Measurements were made for exchanged photon virtualities, Q 2, in the range 10 to 350 GeV2. The photons were measured in the transverse-energy and pseudorapidity ranges 4 < Eγ T < 15 GeV and −0.7 < ηγ < 0.9, and the jets were measured in the transverse-energy and pseudorapidity ranges 2.5 < Ejet T < 35 GeV and −1.5 < ηjet < 1.8. Differential cross sections are presented as functions of these quantities. Perturbative QCD predictions give a reasonable description of the shape of the measured cross sections over most of the kinematic range, but the absolute normalisation is typically in disagreement by 20–30%, We appreciate the contributions to the construction and maintenance of the ZEUS detector of many people who are not listed as authors. The HERA machine group and the DESY computing staff are especially acknowledged for their success in providing excellent operation of the collider and the data-analysis environment. We thank the DESY directorate for their strong support and encouragement. We also thank H. Spiesberger and N. Zotov for providing theoretical results
Published: 2012

40. Production of Z(0) bosons in elastic and quasi-elastic ep collisions at HERA

Author: Abramowicz, H, Abt, I, Adamczyk, L, Adamus, M, Aggarwal, R, Antonelli, S, Antonioli, P, Antonov, A, Arneodo, M, Arslan, O, Aushev, V, Aushev, Y, Bachynska, O, Bamberger, A, Barakbaev, AN, Barbagli, G, Bari, G, Barreiro, F, Bartosik, N, Bartsch, D, Basile, M, Behnke, O, Behr, J, Behrens, U, Bellagamba, L, Bertolin, A, Bhadra, S, Bindi, M, Blohm, C, Bokhonov, V, Bold, T, Bondarenko, K, Boos, EG, Borras, K, Boscherini, D, Bot, D, Brock, I, Brownson, E, Brugnera, R, Bruemmer, N, Bruni, A, Bruni, G, Brzozowska, B, Bussey, PJ, Bylsma, B, Caldwell, A, Capua, M, Carlin, R, Catterall, CD, Chekanov, S, Chwastowski, J, Ciborowski, J, Ciesielski, R, Cifarelli, L, Cindolo, F, Contin, A, Cooper-Sarkar, AM, Coppola, N, Corradi, M, Corriveau, F, Costa, M, D'Agostini, G, Dal Corso, E, del Peso, J, Dementiev, RK, De Pasquale, S, Derrick, M, Devenish, RCE, Dobur, D, Dolgoshein, BA, Dolinska, G, Doyle, AT, Drugakov, V, Durkin, LS, Dusini, S, Eisenberg, Y, Ermolov, PF, Eskreys, A, Fang, S, Fazio, S, Ferrando, J, Ferrero, MI, Figiel, J, Foster, B, Gach, G, Galas, A, Gallo, E, Garfagnini, A, Geiser, A, Gialas, I, Gizhko, A, Gladilin, LK, Gladkov, D, Glasman, C, Gogota, O, Golubkov, YA, Goettlicher, P, Grabowska-Bold, I, Grebenyuk, J, Gregor, I, Grigorescu, G, Grzelak, G, Gueta, O, Guzik, M, Gwenlan, C, Haas, T, Hain, W, Hamatsu, R, Hart, JC, Hartmann, H, Hartner, G, Hilger, E, Hochman, D, Hori, R, Huettmann, A, Ibrahim, ZA, Iga, Y, Ingbir, R, Ishitsuka, M, Jakob, H-P, Januschek, F, Jones, TW, Juengst, M, Kadenko, I, Kahle, B, Kananov, S, Kanno, T, Karshon, U, Karstens, F, Katkov, II, Kaur, M, Kaur, P, Keramidas, A, Khein, LA, Kim, JY, Kisielewska, D, Kitamura, S, Klanner, R, Klein, U, Koffeman, E, Kondrashova, N, Kononenko, O, Kooijman, P, Korol, I, Korzhavina, IA, Kotanski, A, Koetz, U, Kowalski, H, Kuprash, O, Kuze, M, Lee, A, Levchenko, BB, Levy, A, Libov, V, Limentani, S, Ling, TY, Lisovyi, M, Lobodzinska, E, Lohmann, W, Loehr, B, Lohrmann, E, Long, KR, Longhin, A, Lontkovskyi, D, Lukina, OY, Maeda, J, Magill, S, Makarenko, I, Malka, J, Mankel, R, Margotti, A, Marini, G, Martin, JF, Mastroberardino, A, Mattingly, MCK, Melzer-Pellmann, I-A, Mergelmeyer, S, Miglioranzi, S, Idris, FM, Monaco, V, Montanari, A, Morris, JD, Mujkic, K, Musgrave, B, Nagano, K, Namsoo, T, Nania, R, Nigro, A, Ning, Y, Nobe, T, Notz, D, Nowak, RJ, Nuncio-Quiroz, AE, Oh, BY, Okazaki, N, Olkiewicz, K, Onishchuk, Y, Papageorgiu, K, Parenti, A, Paul, E, Pawlak, JM, Pawlik, B, Pelfer, PG, Pellegrino, A, Perlanski, W, Perrey, H, Piotrzkowski, K, Plucinski, P, Pokrovskiy, NS, Polini, A, Proskuryakov, AS, Przybycien, M, Raval, A, Reeder, DD, Reisert, B, Ren, Z, Repond, J, Ri, YD, Robertson, A, Roloff, P, Rubinsky, I, Ruspa, M, Sacchi, R, Samson, U, Sartorelli, G, Savin, AA, Saxon, DH, Schioppa, M, Schlenstedt, S, Schleper, P, Schmidke, WB, Schneekloth, U, Schoenberg, V, Schoerner-Sadenius, T, Schwartz, J, Sciulli, F, Shcheglova, LM, Shehzadi, R, Shimizu, S, Singh, I, Skillicorn, IO, Slominski, W, Smith, WH, Sola, V, Solano, A, Son, D, Sosnovtsev, V, Spiridonov, A, Stadie, H, Stanco, L, Stefaniuk, N, Stern, A, Stewart, TP, Stifutkin, A, Stopa, P, Suchkov, S, Susinno, G, Suszycki, L, Sztuk-Dambietz, J, Szuba, D, Szuba, J, Tapper, AD, Tassi, E, Terron, J, Theedt, T, Tiecke, H, Tokushuku, K, Tomaszewska, J, Trusov, V, Tsurugai, T, Turcato, M, Turkot, O, Tymieniecka, T, Vazquez, M, Verbytskyi, A, Viazlo, O, Vlasov, NN, Walczak, R, Abdullah, WATW, Whitmore, JJ, Wichmann, K, Wiggers, L, Wing, M, Wlasenko, M, Wolf, G, Wolfe, H, Wrona, K, Yaguees-Molina, AG, Yamada, S, Yamazaki, Y, Yoshida, R, Youngman, C, Zabiegalov, O, Zarnecki, AF, Zawiejski, L, Zenaiev, O, Zeuner, W, Zhautykov, BO, Zhmak, N, Zichichi, A, Zolkapli, Z, Zotkin, DS, Collaboration, ZEUS, H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A.N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, K. Bondarenko, E.G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P.J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C.D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A.M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. DʼAgostini, F. Dal Corso, J. del Peso, R.K. Dementiev, S. De Pasquale, M. Derrick, R.C.E. Devenish, D. Dobur, B.A. Dolgoshein, G. Dolinska, A.T. Doyle, V. Drugakov, L.S. Durkin, S. Dusini, Y. Eisenberg, P.F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M.I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L.K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu.A. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J.C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z.A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H.-P. Jakob, F. Januschek, T.W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I.I. Katkov, M. Kaur, P. Kaur, A. Keramida, L.A. Khein, J.Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I.A. Korzhavina, A. Kotański, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B.B. Levchenko, A. Levy, V. Libov, S. Limentani, T.Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K.R. Long, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J.F. Martin, A. Mastroberardino, M.C.K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J.D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R.J. Nowak, A.E. Nuncio-Quiroz, B.Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J.M. Pawlak, B. Pawlik, P.G. Pelfer, A. Pellegrino, W. Perlański, H. Perrey, K. Piotrzkowski, P. Pluciński, N.S. Pokrovskiy, A. Polini, A.S. Proskuryakov, M. Przybycień, A. Raval, D.D. Reeder, B. Reisert, Z. Ren, J. Repond, Y.D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A.A. Savin, D.H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W.B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L.M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I.O. Skillicorn, W. Słomiński, W.H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T.P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A.D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N.N. Vlasov, R. Walczak, W.A.T. Wan Abdullah, J.J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A.G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B.O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, and D.S. Zotkin
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics, HERA, ZEUS Collaboration, FOS: Physical sciences, ddc:530, E-P COLLISIONS, High Energy Physics::Experiment, Z0 BOSON, Nuclear Experiment, ZEUS experiment, High Energy Physics - Experiment
Abstract: The production of Z0 bosons in the reaction ep -> eZ0p*, where p* stands for a proton or a low-mass nucleon resonance, has been studied in ep collisions at HERA using the ZEUS detector. The analysis is based on a data sample collected between 1996 and 2007, amounting to 496 pb-1 of integrated luminosity. The Z0 was measured in the hadronic decay mode. The elasticity of the events was ensured by a cut on eta_max < 3.0, where eta_max is the maximum pseudorapidity of energy deposits in the calorimeter defined with respect to the proton beam direction. A signal was observed at the Z0 mass. The cross section of the reaction ep -> eZ0p* was measured to be sigma(ep -> eZ0p*) = 0.13 +/- 0.06 (stat.) +/- 0.01 (syst.) pb, in agreement with the Standard Model prediction of 0.16 pb. This is the first measurement of Z0 production in ep collisions., 13 pages, 3 figures, submitted to PLB
Published: 2013

41. Measurement of inelastic J/ψ and ψ′ photoproduction at HERA

Author: Chekanov, S, Krakauer, D, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, Mck, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, Gc, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, DE PASQUALE, Salvatore, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, Hp, Kappes, A, Katz, Uf, Kind, O, Paul, E, Rautenberg, J, Renner, R, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, Kc, Wang, M, Weber, A, Bailey, Ds, Brook, Nh, Cole, Je, Foster, B, Heath, Gp, Heath, Hf, Robins, S, Rodrigues, E, Scott, J, Tapper, Rj, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, Jy, Kim, Yk, Lee, Jh, Lim, It, Pac, My, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, Wb, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska Bold, I, Kisielewska, D, Kowal, Am, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotasnski, A, Slominski, W, Bauerdick, Lat, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Derrick, M, Drews, G, Fourletova, J, Fox Murphy, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, Gf, Hillert, S, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer Pellmann, Ia, Moritz, M, Notz, D, Petrucci, Mc, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Wessoleck, H, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Viani, Ald, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, Pg, Bamberger, A, Benen, A, Coppola, N, Bell, M, Bussey, Pj, Doyle, At, Glasman, C, Hanlon, S, Lee, Sw, Lupi, A, Mccance, Gj, Saxon, Dh, Skillicorn, Io, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, Collins Tooth, C, Foudas, C, Goncalo, R, Long, Kr, Metlica, F, Tapper, Ad, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, An, Boos, Eg, Pokrovskiy, Ns, Zhautykov, Bo, Lim, H, Son, D, Barreiro, F, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Tassi, E, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, Dg, St Laurent, M, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, Ba, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, Rk, Ermolov, Pf, Golubkov, Ya, Katkov, Ii, Khein, La, Korzhavina, Ia, Kuzmin, Va, Levchenko, Bb, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Vlasov, Nn, Zotkin, Sa, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tiecke, H, Tuning, N, Velthuis, Jj, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, Ls, Ling, Ty, Boogert, S, Cooper Sarkar, Am, Devenish, Rce, Ferrando, J, Grzelak, G, Matsushita, T, Rigby, M, Ruske, O, Sutton, Mr, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, Ea, By, Oh, Saull, Prb, Whitmore, Jj, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, Jc, Mccubbin, Na, Heusch, C, Park, Ih, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Ferrero, Mi, Monaco, V, Ruspa, M, Sacchi, R, Solano, A, Galea, R, Koop, T, Levman, Gm, Martin, Jf, Mirea, A, Sabetfakhri, A, Butterworth, Jm, Gwenlan, C, Hall Wilton, R, Jones, Tw, Lightwood, Ms, Loizides, Jh, West, Bj, Ciborowski, J, Ciesielski, R, Nowak, Rj, Pawlak, Jm, Smalska, B, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, Af, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, Lk, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, Dd, Savin, Aa, Smith, Wh, Deshpande, A, Dhawan, S, Hughes, Vw, Straub, Pb, Bhadra, S, Catterall, Cd, Fourletov, S, Menary, S, Soares, M, Standage, J., H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bold, K. Bondarenko, E. G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P. J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C. D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. D’Agostini, F. Dal Corso, J. Peso, R. K. Dementiev, S. Pasquale, M. Derrick, R. C. E. Devenish, D. Dobur, B. A. Dolgoshein, G. Dolinska, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, Y. Eisenberg, P. F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M. I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu. A. Golubkov, P. Göttlicher, I. Grabowska-Bold, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J. C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H.-P. Jakob, F. Januschek, T. W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I. I. Katkov, M. Kaur, P. Kaur, A. Keramida, L. A. Khein, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I. A. Korzhavina, A. Kotanski, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B. B. Levchenko, A. Levy, V. Libov, S. Limentani, T. Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K. R. Long, A. Longhin, D. Lontkovskyi, O. Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J. F. Martin, A. Mastroberardino, M. C. K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J. D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R. J. Nowak, A. E. Nuncio-Quiroz, B. Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J. M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, W. Perlanski, H. Perrey, K. Piotrzkowski, P. Plucinski, N. S. Pokrovskiy, A. Polini, A. S. Proskuryakov, M. Przybycien, A. Raval, D. D. Reeder, B. Reisert, Z. Ren, J. Repond, Y. D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L. M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I. O. Skillicorn, W. Slominski, W. H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T. P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A. D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N. N. Vlasov, R. Walczak, W. A. T. Wan Abdullah, J. J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B. O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, D. S. Zotkin, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, Nuclear and High Energy Physics, ROOT S=1.8 TEV, Meson, LUND MONTE-CARLO, HERA, P(P)OVER-BAR COLLISIONS, Nuclear Theory, Lepton-Nucleon Scattering, Photon energy, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, Cross section (physics), High Energy Physics, ZEUS Collaboration, Factorization, 0103 physical sciences, 010306 general physics, Nuclear Experiment, Quantum chromodynamics, Physics, ZEUS (particle detector), Luminosity (scattering theory), CONSTRUCTION, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ZEUS BARREL CALORIMETER, lepton-nucleon scattering, MESONS, QCD, CENTRAL TRACKING DETECTOR, PARTON DISTRIBUTIONS, QUARKONIUM PRODUCTION, High Energy Physics::Experiment, qcd, J/PSI and PSI' PHOTOPRODUCTION
Abstract: The cross sections for inelastic photoproduction of J/ψ and ψ′ mesons have been measured in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb−1 collected in the period 1996–2007. The ψ′ to J/ψ cross section ratio was measured in the range 0.55 0.9 and 60 190 GeV as a function of W, z and p T . Here W denotes the photon-proton centre-of-mass energy, z is the fraction of the incident photon energy carried by the meson and p T is the transverse momentum of the meson with respect to the beam axis. The J/ψ cross sections were measured for 0.1 0.9, 60 240 GeV and p T > 1 GeV. Theoretical predictions within the non-relativistic QCD framework including NLO colour-singlet and colour-octet contributions were compared to the data, as were predictions based on the k T -factorisation approach.
Published: 2013

42. Measurement of high-Q2 neutral current deep inelastic e+p scattering cross sections with a longitudinally polarised positron beam at HERA

Author: ZEUS Collaboration, Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Arslan, O., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartosik, N., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bokhonov, V., Bold, T., Bondarenko, K., Boos, E. G., Borras, K., Boscherini, D., Bot, D., Brock, I., Brownson, E., Brugnera, R., Brummer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper-Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., D'Agostini, G., Corso, F. Dal, del Peso, J., Dementiev, R. K., De Pasquale, S., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Dolinska, G., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Foster, B., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gizhko, A., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Yu. A., Gottlicher, P., Grabowska-Bold, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gueta, O., Guzik, M., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Hori, R., Huttmann, A., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H. -P., Januschek, F., Jones, T. W., Jungst, M., Kadenko, I., Kahle, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kondrashova, N., Kononenko, O., Kooijman, P., Korol, Ie., Korzhavina, I. A., Kotanski, A., Kotz, U., Kowalski, H., Kuprash, O., Kuze, M., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Long, K. R., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Mattingly, M. C. K., Melzer-Pellmann, I. -A., Mergelmeyer, S., Miglioranzi, S., Idris, F. Mohamad, Monaco, V., Montanari, A., Morris, J. D., Mujkic, K., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nigro, A., Ning, Y., Nobe, T., Notz, D., Nowak, R. J., Nuncio-Quiroz, A. E., Oh, B. Y., Okazaki, N., Olkiewicz, K., Onishchuk, Yu., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perlanski, W., Perrey, H., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycien, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Ri, Y. D., Robertson, A., Roloff, P., Rubinsky, I., Ruspa, M., Sacchi, R., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Schonberg, V., Schorner-Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., Slominski, W., Smith, W. H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stefaniuk, N., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terron, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomaszewska, J., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Vazquez, M., Verbytskyi, A., Viazlo, O., Vlasov, N. N., Walczak, R., Abdullah, W. A. T. Wan, Whitmore, J. J., Wichmann, K., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagues-Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Zabiegalov, O., Zarnecki, A. F. ., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zichichi, A., Zolkapli, Z., Zotkin, D. S., H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, K. Bondarenko, E. G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P. J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C. D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. D’Agostini, F. Dal Corso, J. del Peso, R. K. Dementiev, S. De Pasquale, M. Derrick, R. C. E. Devenish, D. Dobur, B. A. Dolgoshein, G. Dolinska, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, Y. Eisenberg, P. F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M. I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu. A. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J. C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H. -P. Jakob, F. Januschek, T. W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I. I. Katkov, M. Kaur, P. Kaur, A. Keramida, L. A. Khein, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I. A. Korzhavina, A. Kotański, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B. B. Levchenko, A. Levy, V. Libov, S. Limentani, T. Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K. R. Long, A. Longhin, D. Lontkovskyi, O. Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J. F. Martin, A. Mastroberardino, M. C. K. Mattingly, I. -A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J. D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R. J. Nowak, A. E. Nuncio-Quiroz, B. Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J. M. Pawlak, B. Pawlik, P. G. Pelfer, A. Pellegrino, W. Perlański, H. Perrey, K. Piotrzkowski, P. Pluciński, N. S. Pokrovskiy, A. Polini, A. S. Proskuryakov, M. Przybycień, A. Raval, D. D. Reeder, B. Reisert, Z. Ren, J. Repond, Y. D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L. M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I. O. Skillicorn, W. Słomiński, W. H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T. P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A. D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N. N. Vlasov, R. Walczak, W. A. T. Wan Abdullah, J. J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B. O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, and D. S. Zotkin
Subjects: High Energy Physics - Experiment (hep-ex), Neutral currents, High Energy Physics, HERA, ZEUS Collaboration, FOS: Physical sciences, ddc:530, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract: Measurements of neutral current cross sections for deep inelastic scattering in e+p collisions at HERA with a longitudinally polarised positron beam are presented. The single-differential cross-sections d(sigma)/dQ2, d(sigma)/dx and d(sigma)/dy and the reduced cross-section were measured in the kinematic region Q2 > 185 GeV2 and y < 0.9, where Q2 is the four-momentum transfer squared, x the Bjorken scaling variable, and y the inelasticity of the interaction. The measurements were performed separately for positively and negatively polarised positron beams. The measurements are based on an integrated luminosity of 135.5 pb-1 collected with the ZEUS detector in 2006 and 2007 at a centre-of-mass energy of 318 GeV. The structure functions F3 and F3(gamma)Z were determined by combining the e+p results presented in this paper with previously published e-p neutral current results. The asymmetry parameter A+ is used to demonstrate the parity violation predicted in electroweak interactions. The measurements are well described by the predictions of the Standard Model., 46 pages, 10 figures and 15 tables. Version updated after journal review and including full list of authors
Published: 2012

43. Inclusive-jet photoproduction at HERA and determination of alpha(s)

Author: Abramowicz, H, Abt, I, Adamczyk, L, Adamus, M, Aggarwal, R, Antonelli, S, Antonioli, P, Antonov, A, Arneodo, M, Aushev, V, Aushev, Y, Bachynska, O, Bamberger, A, Barakbaev, AN, Barbagli, G, Bari, G, Barreiro, F, Bartosik, N, Bartsch, D, Basile, M, Behnke, O, Behr, J, Behrens, U, Bellagamba, L, Bertolin, A, Bhadra, S, Bindi, M, Blohm, C, Bokhonov, V, Bold, T, Bondarenko, K, Boos, EG, Borras, K, Boscherini, D, Bot, D, Brock, I, Brownson, E, Brugnera, R, Bruemmer, N, Bruni, A, Bruni, G, Brzozowska, B, Bussey, PJ, Bylsma, B, Caldwell, A, Capua, M, Carlin, R, Catterall, CD, Chekanov, S, Chwastowski, J, Ciborowski, J, Ciesielski, R, Cifarelli, L, Cindolo, F, Contin, A, Cooper-Sarkar, AM, Coppola, N, Corradi, M, Corriveau, F, Costa, M, D'Agostini, G, Dal Corso, F, del Peso, J, Dementiev, RK, De Pasquale, S, Derrick, M, Devenish, RCE, Dobur, D, Dolgoshein, BA, Dolinska, G, Doyle, AT, Drugakov, V, Durkin, LS, Dusini, S, Eisenberg, Y, Ermolov, PF, Eskreys, A, Fang, S, Fazio, S, Ferrando, J, Ferrero, MI, Figiel, J, Forrest, M, Foster, B, Gach, G, Galas, A, Gallo, E, Garfagnini, A, Geiser, A, Gialas, I, Gizhko, A, Gladilin, LK, Gladkov, D, Glasman, C, Gogota, O, Golubkov, YA, Goettlicher, P, Grabowska-Bold, I, Grebenyuk, J, Gregor, I, Grigorescu, G, Grzelak, G, Gueta, O, Guzik, M, Gwenlan, C, Haas, T, Hain, W, Hamatsu, R, Hart, JC, Hartmann, H, Hartner, G, Hilger, E, Hochman, D, Hori, R, Horton, K, Huettmann, A, Ibrahim, ZA, Iga, Y, Ingbir, R, Ishitsuka, M, Jakob, H-P, Januschek, F, Jones, TW, Juengst, M, Kadenko, I, Kahle, B, Kananov, S, Kanno, T, Karshon, U, Karstens, F, Katkov, II, Kaur, M, Kaur, P, Keramidas, A, Khein, LA, Kim, JY, Kisielewska, D, Kitamura, S, Klanner, R, Klein, U, Koffeman, E, Kondrashova, N, Kononeko, O, Kooijman, P, Korol, I, Korzhavina, IA, Kotanski, A, Koetz, U, Kowalski, H, Kuprash, O, Kuze, M, Lee, A, Levchenko, BB, Levy, A, Libov, V, Limentani, S, Ling, TY, Lisovyi, M, Lobodzinska, E, Lohmann, W, Loehr, B, Lohrmann, E, Long, KR, Longhin, A, Lontkovskyi, D, Lukina, OY, Maeda, J, Magill, S, Makarenko, I, Malka, J, Mankel, R, Margotti, A, Marini, G, Martin, JF, Mastroberardino, A, Mattingly, MCK, Melzer-Pellmann, I-A, Mergelmeyer, S, Miglioranzi, S, Idris, FM, Monaco, V, Montanari, A, Morris, JD, Mujkic, K, Musgrave, B, Nagano, K, Namsoo, T, Nania, R, Nigro, A, Ning, Y, Nobe, T, Noor, U, Notz, D, Nowak, RJ, Nuncio-Quiroz, AE, Oh, BY, Okazaki, N, Oliver, K, Olkiewicz, K, Onishchuk, Y, Papageorgiu, K, Parenti, A, Paul, E, Pawlak, JM, Pawlik, B, Pelfer, PG, Pellegrino, A, Perlanski, W, Perrey, H, Piotrzkowski, K, Plucinski, P, Pokrovskiy, NS, Polini, A, Proskuryakov, AS, Przybycien, M, Raval, A, Reeder, DD, Reisert, B, Ren, Z, Repond, J, Ri, YD, Robertson, A, Roloff, P, Rubinsky, I, Ruspa, M, Sacchi, R, Samson, U, Sartorelli, G, Savin, AA, Saxon, DH, Schioppa, M, Schlenstedt, S, Schleper, P, Schmidke, WB, Schneekloth, U, Schoenberg, V, Schoerner-Sadenius, T, Schwartz, J, Sciulli, F, Shcheglova, LM, Shehzadi, R, Shimizu, S, Singh, I, Skillicorn, IO, Slominski, W, Smith, WH, Sola, V, Solano, A, Son, D, Sosnovtsev, V, Spiridonov, A, Stadie, H, Stanco, L, Stefaniuk, N, Stern, A, Stewart, TP, Stifutkin, A, Stopa, P, Suchkov, S, Susinno, G, Suszycki, L, Sztuk-Dambietz, J, Szuba, D, Szuba, J, Tapper, AD, Tassi, E, Terron, J, Theedt, T, Tiecke, H, Tokushuku, K, Tomaszewska, J, Trusov, V, Tsurugai, T, Turcato, M, Turkot, O, Tymieniecka, T, Vazquez, M, Verbytskyi, A, Viazlo, O, Vlasov, NN, Walczak, R, Abdullah, WATW, Whitmore, JJ, Wiggers, L, Wing, M, Wlasenko, M, Wolf, G, Wolfe, H, Wrona, K, Yaguees-Molina, AG, Yamada, S, Yamazaki, Y, Yoshida, R, Youngman, C, Zabiegalov, O, Zarnecki, AF, Zawiejski, L, Zenaiev, O, Zeuner, W, Zhautykov, BO, Zhmak, N, Zhou, C, Zichichi, A, Zolkapli, Z, Zotkin, DS, Collaboration, ZEUS, H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A.N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, K. Bondarenko, E.G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P.J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C.D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A.M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. DʼAgostini, F. Dal Corso, J. del Peso, R.K. Dementiev, S. De Pasquale, M. Derrick, R.C.E. Devenish, D. Dobur, B.A. Dolgoshein, G. Dolinska, A.T. Doyle, V. Drugakov, L.S. Durkin, S. Dusini, Y. Eisenberg, P.F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M.I. Ferrero, J. Figiel, M. Forrest, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L.K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu.A. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J.C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, K. Horton, A. Hüttmann, Z.A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H.-P. Jakob, F. Januschek, T.W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I.I. Katkov, M. Kaur, P. Kaur, A. Keramida, L.A. Khein, J.Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononeko, P. Kooijman, Ie. Korol, I.A. Korzhavina, A. Kotański, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B.B. Levchenko, A. Levy, V. Libov, S. Limentani, T.Y. Ling, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K.R. Long, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J.F. Martin, A. Mastroberardino, M.C.K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J.D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, U. Noor, D. Notz, R.J. Nowak, A.E. Nuncio-Quiroz, B.Y. Oh, N. Okazaki, K. Oliver, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J.M. Pawlak, B. Pawlik, P.G. Pelfer, A. Pellegrino, W. Perlański, H. Perrey, K. Piotrzkowski, P. Pluciński, N.S. Pokrovskiy, A. Polini, A.S. Proskuryakov, M. Przybycień, A. Raval, D.D. Reeder, B. Reisert, Z. Ren, J. Repond, Y.D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A.A. Savin, D.H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W.B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L.M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I.O. Skillicorn, W. Słomiński, W.H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T.P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A.D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N.N. Vlasov, R. Walczak, W.A.T. Wan Abdullah, J.J. Whitmore, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A.G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B.O. Zhautykov, N. Zhmak, C. Zhou, A. Zichichi, Z. Zolkapli, and D.S. Zotkin
Subjects: COUPLING ALPHA(S), LUND MONTE-CARLO, Astrophysics::High Energy Astrophysical Phenomena, TRANSVERSE-MOMENTUM, FOS: Physical sciences, ZEUS, ZEUS BARREL CALORIMETER, DEEP-INELASTIC SCATTERING, CENTRAL TRACKING DETECTOR, DIJET CROSS-SECTIONS, HADRONIC EVENT SHAPES, EP COLLIDER HERA, PARTON DISTRIBUTIONS, Strong coupling alpha, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), INCLUSIVE JET CROSS SECTION, ddc:530, High Energy Physics::Experiment, ZEUS experiment
Abstract: Inclusive-jet cross sections have been measured in the reaction ep->e+jet+X for photon virtuality Q2 < 1 GeV2 and gamma-p centre-of-mass energies in the region 142 < W(gamma-p) < 293 GeV with the ZEUS detector at HERA using an integrated luminosity of 300 pb-1. Jets were identified using the kT, anti-kT or SIScone jet algorithms in the laboratory frame. Single-differential cross sections are presented as functions of the jet transverse energy, ETjet, and pseudorapidity, etajet, for jets with ETjet > 17 GeV and -1 < etajet < 2.5. In addition, measurements of double-differential inclusive-jet cross sections are presented as functions of ETjet in different regions of etajet. Next-to-leading-order QCD calculations give a good description of the measurements, except for jets with low ETjet and high etajet. The influence of non-perturbative effects not related to hadronisation was studied. Measurements of the ratios of cross sections using different jet algorithms are also presented; the measured ratios are well described by calculations including up to O(alphas2) terms. Values of alphas(Mz) were extracted from the measurements and the energy-scale dependence of the coupling was determined. The value of alphas(Mz) extracted from the measurements based on the kT jet algorithm is alphas(Mz) = 0.1206 +0.0023 -0.0022 (exp.) +0.0042 -0.0035 (th.); the results from the anti-kT and SIScone algorithms are compatible with this value and have a similar precision., 53 pages, 17 figures
Published: 2012

44. Production of the excited charm mesons D_1 and D^*_2 at HERA

Author: Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Arslan, O., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartosik, N., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bokhonov, V., Bołd, T., Bondarenko, K., Boos, E. G., Borras, K., Boscherini, D., Bot, D., Brock, I., Brownson, E., Brugnera, R., Brümmer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper-Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., D'Agostini, G., Dal Corso, F., del Peso, J., Dementiev, R. K., De Pasquale, S., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Dolinska, G., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Foster, B., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gizhko, A., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Yu. A., Göttlicher, P., Grabowska-Bołd, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gueta, O., Guzik, M., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Hori, R., Hüttmann, A., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H.-P., Januschek, F., Jones, T. W., Jüngst, M., Kadenko, I., Kahle, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kondrashova, N., Kononenko, O., Kooijman, P., Korol, Ie., Korzhavina, I. A., Kota\'nski, A., Kötz, U., Kowalski, H., Kuprash, O., Kuze, M., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., Löhr, B., Lohrmann, E., Long, K. R., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Mattingly, M. C. K., Melzer-Pellmann, I.-A., Mergelmeyer, S., Miglioranzi, S., Mohamad Idris, F., Monaco, V., Montanari, A., Morris, J. D., Mujkic, K., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nigro, A., Ning, Y., Nobe, T., Notz, D., Nowak, R. J., Nuncio-Quiroz, A. E., Oh, B. Y., Okazaki, N., Olkiewicz, K., Onishchuk, Yu., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perla\'nski, W., Perrey, H., Piotrzkowski, K., Pluci\'nski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycie\'n, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Ri, Y. D., Robertson, A., Roloff, P., Rubinsky, I., Ruspa, M., Sacchi, R., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Schönberg, V., Schörner-Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., Słomi\'nski, W., Smith, W. H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stefaniuk, N., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terrón, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomaszewska, J., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Vázquez, M., Verbytskyi, A., Viazlo, O., Vlasov, N. N., Walczak, R., Wan Abdullah, W. A. T., Whitmore, J. J., Wichmann, K., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagües-Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Zabiegalov, O., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zichichi, A., Zolkapli, Z., Zotkin, D. S., H. Abramowicz, I. Abt, L. Adamczyk, M. Adamu, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A.N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, N. Bartosik, D. Bartsch, M. Basile, O. Behnke, J. Behr, U. Behren, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, K. Bondarenko, E.G. Boo, K. Borra, D. Boscherini, D. Bot, I. Brock, E. Brownson, R. Brugnera, N. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, P.J. Bussey, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C.D. Catterall, S. Chekanov, J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, A.M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, G. DʼAgostini, F. Dal Corso, J. del Peso, R.K. Dementiev, S. De Pasquale, M. Derrick, R.C.E. Devenish, D. Dobur, B.A. Dolgoshein, G. Dolinska, A.T. Doyle, V. Drugakov, L.S. Durkin, S. Dusini, Y. Eisenberg, P.F. Ermolov, A. Eskrey, S. Fang, S. Fazio, J. Ferrando, M.I. Ferrero, J. Figiel, B. Foster, G. Gach, A. Gala, E. Gallo, A. Garfagnini, A. Geiser, I. Giala, A. Gizhko, L.K. Gladilin, D. Gladkov, C. Glasman, O. Gogota, Yu.A. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. Gregor, G. Grigorescu, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, T. Haa, W. Hain, R. Hamatsu, J.C. Hart, H. Hartmann, G. Hartner, E. Hilger, D. Hochman, R. Hori, A. Hüttmann, Z.A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, H.-P. Jakob, F. Januschek, T.W. Jone, M. Jüngst, I. Kadenko, B. Kahle, S. Kananov, T. Kanno, U. Karshon, F. Karsten, I.I. Katkov, M. Kaur, P. Kaur, A. Keramida, L.A. Khein, J.Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, U. Klein, E. Koffeman, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I.A. Korzhavina, A. Kotański, U. Kötz, H. Kowalski, O. Kuprash, M. Kuze, A. Lee, B.B. Levchenko, A. Levy, V. Libov, S. Limentani, T.Y. Ling, E. Lobodzinska, W. Lohmann, B. Löhr, E. Lohrmann, K.R. Long, A. Longhin, D. Lontkovskyi, O.Yu. Lukina, J. Maeda, S. Magill, I. Makarenko, J. Malka, R. Mankel, A. Margotti, G. Marini, J.F. Martin, A. Mastroberardino, M.C.K. Mattingly, I.-A. Melzer-Pellmann, S. Mergelmeyer, S. Miglioranzi, F. Mohamad Idri, V. Monaco, A. Montanari, J.D. Morri, K. Mujkic, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, A. Nigro, Y. Ning, T. Nobe, D. Notz, R.J. Nowak, A.E. Nuncio-Quiroz, B.Y. Oh, N. Okazaki, K. Olkiewicz, Yu. Onishchuk, K. Papageorgiu, A. Parenti, E. Paul, J.M. Pawlak, B. Pawlik, P.G. Pelfer, A. Pellegrino, W. Perlański, H. Perrey, K. Piotrzkowski, P. Pluciński, N.S. Pokrovskiy, A. Polini, A.S. Proskuryakov, M. Przybycień, A. Raval, D.D. Reeder, B. Reisert, Z. Ren, J. Repond, Y.D. Ri, A. Robertson, P. Roloff, I. Rubinsky, M. Ruspa, R. Sacchi, U. Samson, G. Sartorelli, A.A. Savin, D.H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W.B. Schmidke, U. Schneekloth, V. Schönberg, T. Schörner-Sadeniu, J. Schwartz, F. Sciulli, L.M. Shcheglova, R. Shehzadi, S. Shimizu, I. Singh, I.O. Skillicorn, W. Słomiński, W.H. Smith, V. Sola, A. Solano, D. Son, V. Sosnovtsev, A. Spiridonov, H. Stadie, L. Stanco, N. Stefaniuk, A. Stern, T.P. Stewart, A. Stifutkin, P. Stopa, S. Suchkov, G. Susinno, L. Suszycki, J. Sztuk-Dambietz, D. Szuba, J. Szuba, A.D. Tapper, E. Tassi, J. Terrón, T. Theedt, H. Tiecke, K. Tokushuku, J. Tomaszewska, V. Trusov, T. Tsurugai, M. Turcato, O. Turkot, T. Tymieniecka, M. Vázquez, A. Verbytskyi, O. Viazlo, N.N. Vlasov, R. Walczak, W.A.T. Wan Abdullah, J.J. Whitmore, K. Wichmann, L. Wigger, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, A.G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, A.F. Żarnecki, L. Zawiejski, O. Zenaiev, W. Zeuner, B.O. Zhautykov, N. Zhmak, A. Zichichi, Z. Zolkapli, and D.S. Zotkin
Subjects: EXCITED CHARM MESONS, High Energy Physics - Experiment (hep-ex), High Energy Physics, HERA, ZEUS Collaboration, FOS: Physical sciences, ddc:530, High Energy Physics::Experiment, High Energy Physics - Experiment, ZEUS experiment
Abstract: The production of the excited charm mesons D_1(2420) and D^*_2(2460) in ep collisions has been measured with the ZEUS detector at HERA using an integrated luminosity of 373 pb^{-1}. The masses of the neutral and charged states, the widths of the neutral states, and the helicity parameter of D_1(2420)^{0} were determined and compared with other measurements and with theoretical expectations. The measured helicity parameter of the D^0_1 allows for some mixing of S- and D-waves in its decay to D^{*\pm}\pi^{\mp}. The result is also consistent with a pure D-wave decay. Ratios of branching fractions of the two decay modes of the D^*_2(2460)^0 and D^*_2(2460)^{\pm} states were measured and compared with previous measurements. The fractions of charm quarks hadronising into D_1 and D^{*}_2 were measured and are consistent with those obtained in e^+ e^- annihilations., Comment: 31 pages, 6 figures
Published: 2012
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45. Measurement of the energy dependence of the total photon-proton cross section at HERA

Author: Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bold, T., Boos, E. G., Borodin, M., Borras, K., Boscherini, D., Bot, D., Boutle, S. K., Brock, I., Brownson, E., Brugnera, R., Brummer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Butterworth, J. M., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., D'Agostini, Giulio, Dal Corso, F., De Favereau, J., Del Peso, J., Dementiev, R. K., De Pasquale, S., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Forrest, M., Foster, B., Fourletov, S., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Yu A., Gottlicher, P., Grabowska Bold, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Holm, U., Hori, R., Horton, K., Huttmann, A., Iacobucci, G., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H. P., Januschek, F., Jimenez, M., Jones, T. W., Jungst, M., Kadenko, I., Kahle, B., Kamaluddin, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kollar, D., Kooijman, P., Korol, Ie, Korzhavina, I. A., Kotanski, A., Kotz, U., Kowalski, H., Kulinski, P., Kuprash, O., Kuze, M., Kuzmin, V. A., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Loizides, J. H., Long, K. R., Longhin, A., Lontkovskyi, D., Yu Lukina, O., Luzniak, P., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Matsumoto, T., Mattingly, M. C. K., Melzer Pellmann, I. A., Miglioranzi, S., Mohamad Idris, F., Monaco, V., Montanari, A., Morris, J. D., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nicholass, D., Nigro, Andrea, Ning, Y., Noor, U., Notz, D., Nowak, R. J., Nuncio Quiroz, A. E., B. Y., Oh, Okazaki, N., Oliver, K., Olkiewicz, K., Onishchuk, Yu, Ota, O., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perlanski, W., Perrey, H., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycien, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Y. D., Ri, Robertson, A., Roloff, P., Ron, E., Rubinsky, I., Ruspa, M., Sacchi, R., Salii, A., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Schonberg, V., Schorner Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., Slominski, W., Smith, W. H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terron, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomalak, O., Tomaszewska, J., Tsurugai, T., Turcato, M., Tymieniecka, T., Uribe Estrada, C., Vazquez, M., Verbytskyi, A., Viazlo, V., Vlasov, N. N., Volynets, O., Walczak, R., Wan Abdullah, W. A. T., Whitmore, J. J., Whyte, J., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagues Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zhou, C., Zichichi, A., Zolko, M., Zotkin, D. S., Zulkapli, Z., H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, Z. ZULKAPLI, Precision Frontier, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, LOW X, REPRESENTATION, Proton, Astrophysics::High Energy Astrophysical Phenomena, HERA, Hadron, FOS: Physical sciences, 01 natural sciences, Particle identification, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Positron, DESIGN, 0103 physical sciences, LOW Q(2), SCATTERING, ddc:530, High Energy Physics, Nuclear Experiment, 010306 general physics, ZEUS Collaboration, P system, Physics, ZEUS (particle detector), CONSTRUCTION, IDENTIFICATION, 010308 nuclear & particles physics, OF-MASS ENERGY, Energy dependence, Física, ZEUS BARREL CALORIMETER, photoproduction, energy dependence, total cross section, CENTRAL TRACKING DETECTOR, Photoproduction, Total cross section, Antimatter, High Energy Physics::Experiment, Photon-proton cross section, ZEUS experiment
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, The energy dependence of the photon–proton total cross section, σγ p tot , was determined from e+p scattering data collected with the ZEUS detector at HERA at three values of the center-of-mass energy, W, of the γ p system in the range 194 < W < 296 GeV. This is the first determination of the W dependence of σγ p tot from a single experiment at high W. Parameterizing σγ p tot ∝ W2€, € = 0.111 ± 0.009 (stat.) ± 0.036 (syst.) was obtained, We appreciate the contributions to the construction and maintenance of the ZEUS detector of many people who are not listed as authors. The HERA machine group and the DESY computing staff are especially acknowledged for their success in providing excellent operation of the collider and the data-analysis environment. We thank the DESY directorate for their strong support and encouragement
Published: 2011

46. Measurement of heavy-quark jet photoproduction at HERA

Author: ZEUS Collaboration, Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartosik, N., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bokhonov, V., Bo��d, T., Bolilyi, O., Bondarenko, K., Boos, E. G., Borras, K., Boscherini, D., Bot, D., Brock, I., Brownson, E., Brugnera, R., Br��mmer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper-Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., D'Agostini, G., Corso, F. Dal, del Peso, J., Dementiev, R. K., De Pasquale, S., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Dolinska, G., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Forrest, M., Foster, B., Fourletov, S., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Yu. A., G��ttlicher, P., Grabowska-Bo��d, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gueta, O., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Hori, R., Horton, K., H��ttmann, A., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H. -P., Januschek, F., Jimenez, M., Jones, T. W., J��ngst, M., Kadenko, I., Kahle, B., Kamaluddin, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kooijman, P., Korol, Ie., Korzhavina, I. A., Kota��ski, A., K��tz, U., Kowalski, H., Kulinski, P., Kuprash, O., Kuze, M., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., L��hr, B., Lohrmann, E., Long, K. R., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., ��u��niak, P., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Mattingly, M. C. K., Melzer-Pellmann, I. -A., Mergelmeyer, S., Miglioranzi, S., Idris, F. Mohamad, Monaco, V., Montanari, A., Morris, J. D., Mujkic, K., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nicholass, D., Nigro, A., Ning, Y., Nobe, T., Noor, U., Notz, D., Nowak, R. J., Nuncio-Quiroz, A. E., Oh, B. Y., Okazaki, N., Oliver, K., Olkiewicz, K., Onishchuk, Yu., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perlanski, W., Perrey, H., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycie��, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Ri, Y. D., Robertson, A., Roloff, P., Ron, E., Rubinsky, I., Ruspa, M., Sacchi, R., Salii, A., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Sch��nberg, V., Sch��rner-Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., S��omi��ski, W., Smith, W. H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terr��n, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomalak, O., Tomaszewska, J., Tsurugai, T., Turcato, M., Tymieniecka, T., Uribe-Estrada, C., V��zquez, M., Verbytskyi, A., Viazlo, O., Vlasov, N. N., Volynets, O., Walczak, R., Abdullah, W. A. T. Wan, Whitmore, J. J., Whyte, J., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yag��es-Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., ��arnecki, A. F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zhou, C., Zichichi, A., Zolko, M., Zotkin, D. S., Zulkapli, Z., Zeus (IHEF, IoP, FNWI), H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, Z. ZULKAPLI, and Precision Frontier
Subjects: Quark, Particle physics, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, HERA, FOS: Physical sciences, Heavy-quark jets, Jet (particle physics), 7. Clean energy, 01 natural sciences, CHARM, High Energy Physics - Experiment, Charm quark, OPEN BEAUTY PRODUCTION, High Energy Physics - Experiment (hep-ex), DESIGN, 0103 physical sciences, VERTEX DETECTOR, Invariant mass, ddc:530, High Energy Physics, Nuclear Experiment, 010306 general physics, ZEUS Collaboration, Engineering (miscellaneous), Quantum chromodynamics, Physics, ZEUS (particle detector), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FLAVOR PRODUCTION, ZEUS BARREL CALORIMETER, CENTRAL TRACKING DETECTOR, Photoproduction, Pseudorapidity, PARTON DISTRIBUTIONS, DIJET CROSS-SECTIONS, High Energy Physics::Experiment, HADRON-COLLISIONS, ZEUS experiment
Abstract: Photoproduction of beauty and charm quarks in events with at least two jets has been measured with the ZEUS detector at HERA using an integrated luminosity of 133 $pb^{-1}$. The fractions of jets containing b and c quarks were extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of jet transverse momentum, $p_{T}^{\text{jet}}$, and pseudorapidity, $\eta^{\text{jet}}$, were measured. The data are compared with previous measurements and are well described by next-to-leading-order QCD predictions., Comment: 35 pages, 9 figures, 3 tables
Published: 2011

47. Search for single-top production in ep collisions at HERA

Author: Chekanov, S, Derrick, M, Krakauer, D, Loizides, J H, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, M C K, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G C, Cifarelli, L, Cindolo, R, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Saitorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, H P, Kappes, A, Katz, U F, Kind, O, Meyer, U, Paul, E, Rautenberg, J, Renner, R, Stifutkin, A, Tandler, J, Voss, K C, Wang, M, Weber, A, Bailey, D S, Brook, N H, Cole, J E, Foster, B, Heath, G P, Heath, H F, Robins, S, Rodrigues, E, Scott, J, Tapper, R J, Wing, M, Capua, A, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, J Y, Kim, Y K, Lee, J H, Lim, I T, Pac, M Y, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, W B, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Kowal, A M, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Slominski, W, Bauerdick, L A T, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Drews, G, Fourletova, J, Fricke, U, Geiser, A, Goebel, R, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, G F, Hillert, S, Kahle, B, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer-Pellmann, I A, Moritz, M, Nguyen, C N, Notz, D, Petrucci, M C, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Wessoleck, H, Wolf, G, Youngman, C, Zeuner, W, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, G, Bamberger, A, Benen, A, Bell, M, Bussey, P, Doyle, A T, Glasman, C, Hamilton, J, Hanlon, S, Lee, S W, Lupi, A, Saxon, D H, Skillicorn, I O, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, Collins-Tooth, C, Foudas, C, Goncalo, R, Long, K R, Tapper, A D, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, A N, Boos, E G, Pokrovskiy, N S, Zhautykov, B O, Lim, H, Son, D, Piotrzkowski, K, Barreiro, F, Gonzalez, O, Labarga, L, del Peso, J, Tassi, E, Terron, J, Vazquez, M, Barbi, M, Corriveau, F, Gliga, S, Lainesse, J, Padhi, S, Stairs, D G, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, B A, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, R K, Ermolov, R, Golubkov, Y A, Katkov, I I, Khein, L A, Korzhavina, I A, Kuzmin, V A, Levchenko, B B, Lukina, O Y, Proskuryakov, A S, Shcheglova, L M, Vlasov, N N, Zotkin, S A, Coppola, N, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tiecke, H, Velthuis, J J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, L S, Ling, T Y, Boogert, S, Cooper-Sarkar, A M, Devenish, R C E, Ferrando, J, Grzelak, G, Matsushita, T, Patel, S, Rigby, M, Sutton, M R, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, E A, Metlica, F, Oh, B Y, Saull, P R B, Whitmore, J J, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, J C, McCubbin, N A, Heusch, C, Park, I H, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, I, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Ferrero, M I, Monaco, V, Ruspa, M, Sacchi, R, Solano, A, Koop, T, Levman, G M, Martin, J F, Mirea, A, Butterworth, J M, Gwenlan, C, Hall-Wilton, R, Jones, T W, Lightwood, M S, West, B J, Ciborowski, J, Ciesielski, R, Nowak, R J, Pawlak, J M, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, A F, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, L K, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, D D, Savin, A A, Smith, W H, Deshpande, A, Dhawan, S, Hughes, V W, Straub, P B, Bhadra, S, Catterall, C D, Fourletov, S, Menary, S, Soares, M, Standage, J, ZEUS Collaboration, UCL, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D.S. ZOTKIN, Zeus (IHEF, IoP, FNWI), and Precision Frontier
Subjects: Particle physics, Nuclear and High Energy Physics, MONTE-CARLO GENERATOR, LUND MONTE-CARLO, P(P)OVER-BAR COLLISIONS, FOS: Physical sciences, FCNC, CHANGING NEUTRAL CURRENTS, DEEP-INELASTIC-SCATTERING, MISSING TRANSVERSE-MOMENTUM, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, COLOR DIPOLE MODEL, HIGH-ENERGY LEPTON, PARTON DISTRIBUTIONS, QUARK PRODUCTION, CROSS-SECTIONS, 7. Clean energy, 01 natural sciences, JET FRAGMENTATION, Standard Model, Vector boson, High Energy Physics - Experiment, Nuclear physics, E(+)E(-) COLLISIONS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, QC, Boson, Physics, Research Groups and Centres\Physics\Low Temperature Physics, Luminosity (scattering theory), ZEUS (particle detector), Neutral current, 010308 nuclear & particles physics, Faculty of Science\Physics, Electroweak interaction, High Energy Physics::Phenomenology, ZEUS, Single-top production, HERA, High Energy Physics::Experiment, HADRON-COLLISIONS, ZEUS experiment
Abstract: A search for single-top production, ep --> etX, has been made with the ZEUS detector at HERA using an integrated luminosity of 130.1 pb-1. Events from both the leptonic and hadronic decay channels of the W boson resulting from the decay of the top quark were sought. For the leptonic mode, the search was made for events with isolated high-energy leptons and significant missing transverse momentum. For the hadronic decay mode, three-jet events in which two of the jets had an invariant mass consistent with that of the W were selected. No evidence for top production was found. The results are used to constrain single-top production via flavour-changing neutral current (FCNC) transitions. The ZEUS limit excludes a substantial region in the FCNC t-u-gamma coupling not ruled out by other experiments., 28 pages, 4 figures, 2 tables, final version (minor changes in text) Addendum with new limits included
Published: 2003

48. Ultrafast Yttrium Hydride Chemistry at High Pressures via Non-equilibrium States Induced by an X-ray Free Electron Laser.

Author: Siska E, Smith GA, Villa-Cortes S, Conway LJ, Husband RJ, Van Cleave J, Petitgirard S, Cerantola V, Appel K, Baehtz C, Bouffetier V, Dwivedi A, Göde S, Gorkhover T, Konopkova Z, Hosseini-Saber SMA, Kuschel S, Laurus T, Nakatsutsumi M, Strohm C, Sztuk-Dambietz J, Zastrau U, Smith D, Lawler KV, Pickard CJ, Schwartz CP, and Salamat A
Abstract: Controlling the formation and stoichiometric content of the desired phases of materials has become of central interest for a variety of fields. The possibility of accessing metastable states by initiating reactions by X-ray-triggered mechanisms over ultrashort time scales has been enabled by the development of X-ray free electron lasers (XFELs). Utilizing the exceptionally high-brilliance X-ray pulses from the EuXFEL, we report the synthesis of a previously unobserved yttrium hydride under high pressure, along with nonstoichiometric changes in hydrogen content as probed at a repetition rate of 4.5 MHz using time-resolved X-ray diffraction. Exploiting non-equilibrium pathways, we synthesize and characterize a hydride in a Weaire-Phelan structure type at pressures as low as 125 GPa, predicted using a crystal structure search, with a hydrogen content of 4.0-5.75 hydrogens per cation, that is enthalpically metastable on the convex hull.
Published: 2024
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49. Phase transition kinetics of superionic H 2 O ice phases revealed by Megahertz X-ray free-electron laser-heating experiments.

Author: Husband RJ, Liermann HP, McHardy JD, McWilliams RS, Goncharov AF, Prakapenka VB, Edmund E, Chariton S, Konôpková Z, Strohm C, Sanchez-Valle C, Frost M, Andriambariarijaona L, Appel K, Baehtz C, Ball OB, Briggs R, Buchen J, Cerantola V, Choi J, Coleman AL, Cynn H, Dwivedi A, Graafsma H, Hwang H, Koemets E, Laurus T, Lee Y, Li X, Marquardt H, Mondal A, Nakatsutsumi M, Ninet S, Pace E, Pepin C, Prescher C, Stern S, Sztuk-Dambietz J, Zastrau U, and McMahon MI
Abstract: H 2 O transforms to two forms of superionic (SI) ice at high pressures and temperatures, which contain highly mobile protons within a solid oxygen sublattice. Yet the stability field of both phases remains debated. Here, we present the results of an ultrafast X-ray heating study utilizing MHz pulse trains produced by the European X-ray Free Electron Laser to create high temperature states of H 2 O, which were probed using X-ray diffraction during dynamic cooling. We confirm an isostructural transition during heating in the 26-69 GPa range, consistent with the formation of SI-bcc. In contrast to prior work, SI-fcc was observed exclusively above ~50 GPa, despite evidence of melting at lower pressures. The absence of SI-fcc in lower pressure runs is attributed to short heating timescales and the pressure-temperature path induced by the pump-probe heating scheme in which H 2 O was heated above its melting temperature before the observation of quenched crystalline states, based on the earlier theoretical prediction that SI-bcc nucleates more readily from the fluid than SI-fcc. Our results may have implications for the stability of SI phases in ice-rich planets, for example during dynamic freezing, where the preferential crystallization of SI-bcc may result in distinct physical properties across mantle ice layers., (© 2024. The Author(s).)
Published: 2024
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50. A MHz X-ray diffraction set-up for dynamic compression experiments in the diamond anvil cell.

Author: Husband RJ, Strohm C, Appel K, Ball OB, Briggs R, Buchen J, Cerantola V, Chariton S, Coleman AL, Cynn H, Dattelbaum D, Dwivedi A, Eggert JH, Ehm L, Evans WJ, Glazyrin K, Goncharov AF, Graafsma H, Howard A, Huston L, Hutchinson TM, Hwang H, Jacob S, Kaa J, Kim J, Kim M, Koemets E, Konôpková Z, Langenhorst F, Laurus T, Li X, Mainberger J, Marquardt H, McBride EE, McGuire C, McHardy JD, McMahon MI, McWilliams RS, Méndez ASJ, Mondal A, Morard G, O'Bannon EF, Otzen C, Pépin CM, Prakapenka VB, Prescher C, Preston TR, Redmer R, Roeper M, Sanchez-Valle C, Smith D, Smith RF, Sneed D, Speziale S, Spitzbart T, Stern S, Sturtevant BT, Sztuk-Dambietz J, Talkovski P, Velisavljevic N, Vennari C, Wu Z, Yoo CS, Zastrau U, Jenei Z, and Liermann HP
Subjects: X-Ray Diffraction, Pressure, X-Rays, Diamond, Lasers
Abstract: An experimental platform for dynamic diamond anvil cell (dDAC) research has been developed at the High Energy Density (HED) Instrument at the European X-ray Free Electron Laser (European XFEL). Advantage was taken of the high repetition rate of the European XFEL (up to 4.5 MHz) to collect pulse-resolved MHz X-ray diffraction data from samples as they are dynamically compressed at intermediate strain rates (≤10 3 s -1 ), where up to 352 diffraction images can be collected from a single pulse train. The set-up employs piezo-driven dDACs capable of compressing samples in ≥340 µs, compatible with the maximum length of the pulse train (550 µs). Results from rapid compression experiments on a wide range of sample systems with different X-ray scattering powers are presented. A maximum compression rate of 87 TPa s -1 was observed during the fast compression of Au, while a strain rate of ∼1100 s -1 was achieved during the rapid compression of N 2 at 23 TPa s -1 ., (open access.)
Published: 2023
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