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1. Minimal cobordisms between thin and thick torus knots

Author: Baader, Sebastian, Lewark, Lukas, Misev, Filip, and Truöl, Paula
Subjects: Mathematics - Geometric Topology, 57K10
Abstract: We determine the locally flat cobordism distance between torus knots with small and large braid index, up to high precision. Here small means 2, 3, 4, or 6. As an application, we derive a surprising fact about torus knots that are met along the way of almost minimal cobordisms between two-stranded torus knots and the trivial knot., Comment: 7 pages, 1 figure, comments welcome
Published: 2024

2. 3-braid knots with maximal 4-genus

Author: Baader, Sebastian, Lewark, Lukas, Misev, Filip, and Truöl, Paula
Subjects: Mathematics - Geometric Topology, 57K10
Abstract: We classify 3-braid knots whose topological 4-genus coincides with their Seifert genus, using McCoy's twisting method and the Xu normal form. In addition, we give upper bounds for the topological 4-genus of positive and strongly quasipositive 3-braid knots., Comment: 24 pages, 7 figures, comments welcome. v2: minor changes, new infinite family of examples in Remark 4.7. Corresponds to published version
Published: 2023
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3. Strongly quasipositive links are concordant to infinitely many strongly quasipositive links

Author: Truöl, Paula
Subjects: Mathematics - Geometric Topology, 57K10 (Primary) 20F36 (Secondary)
Abstract: We show that every strongly quasipositive link other than an unlink is smoothly concordant to infinitely many (pairwise non-isotopic) strongly quasipositive links. In contrast to our result, it was conjectured by Baker that smoothly concordant strongly quasipositive fibered knots are isotopic. Our construction uses a satellite operation whose companion is a slice knot with maximal Thurston-Bennequin number -1., Comment: 15 pages, 5 figures. Comments are welcome!
Published: 2022

4. On the nonorientable four-ball genus of torus knots

Author: Binns, Fraser, Kang, Sungkyung, Simone, Jonathan, and Truöl, Paula
Subjects: Mathematics - Geometric Topology, 57K10 (Primary) 57K18 (Secondary)
Abstract: The nonorientable four-ball genus of a knot $K$ in $S^3$ is the minimal first Betti number of nonorientable surfaces in $B^4$ bounded by $K$. By amalgamating ideas from involutive knot Floer homology and unoriented knot Floer homology, we give a new lower bound on the smooth nonorientable four-ball genus $\gamma_4$ of any knot. This bound is sharp for several families of torus knots, including $T_{4n,(2n\pm 1)^2}$ for even $n\ge 2$, a family Longo showed were counterexamples to Batson's conjecture. We also prove that, whenever $p$ is an even positive integer and $\frac{p}{2}$ is not a perfect square, the torus knot $T_{p,q}$ does not bound a locally flat M\"obius band for almost all integers $q$ relatively prime to $p$., Comment: 31 pages, 8 figures. Comments are welcome! v2: Corresponds to version accepted for publication in Algebraic & Geometric Topology
Published: 2021

5. The upsilon invariant at 1 of 3-braid knots

Author: Truöl, Paula
Subjects: Mathematics - Geometric Topology, 57K10 (Primary) 57K18, 20F36 (Secondary)
Abstract: We provide explicit formulas for the integer-valued smooth concordance invariant $\upsilon(K) = \Upsilon_K(1)$ for every 3-braid knot $K$. We determine this invariant, which was defined by Ozsv\'ath, Stipsicz and Szab\'o, by constructing cobordisms between 3-braid knots and (connected sums of) torus knots. As an application, we show that for positive 3-braid knots $K$ several alternating distances all equal the sum $g(K) + \upsilon(K)$, where $g(K)$ denotes the 3-genus of $K$. In particular, we compute the alternation number, the dealternating number and the Turaev genus for all positive 3-braid knots. We also provide upper and lower bounds on the alternation number and dealternating number of every 3-braid knot which differ by 1., Comment: 34 pages, 3 figures. Comments are welcome! V2: Implementation of referee's suggestions. A small error in the uniqueness statement of Prop. 3.2 which is never used or mentioned later in the article was corrected. Accepted for publication in Algebraic & Geometric Topology
Published: 2021
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6. PEN experiment: a precise test of lepton universality

Author: Glaser, C. J., Pocanic, D., Alonzi, L. P., Baranov, V. A., Bertl, W., Bychkov, M., Bystritsky, Yu. M., Frlez, E., Kalinnikov, V. A., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Lehman, M. C., Munyangabe, E., Mzhavia, D., Palladino, A., Robmann, P., Rozhdestvensky, A. M., Smith, R. T., Supek, I., Truöl, P., van der Schaaf, A., Velicheva, E. P., Vitz, M. G., and Volnykh, V. P.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment
Abstract: With few open channels and uncomplicated theoretical description, charged pion decays are uniquely sensitive to certain standard model (SM) symmetries, the universality of weak fermion couplings, and to aspects of pion structure and chiral dynamics. We review the current knowledge of the pion electronic decay $\pi^+ \to e^+ \nu_e({\gamma})$, or $\pi_{e2({\gamma})}$, and the resulting limits on non-SM processes. Focusing on the PEN experiment at the Paul Scherrer Institute (PSI), Switzerland, we examine the prospects for further improvement in the near term., Comment: Talk presented at CIPANP2018. 9 pages, LaTeX, 4 pdf figures, 1 table. arXiv admin note: substantial text overlap with arXiv:1701.05254
Published: 2018

7. Determination of the strong coupling constant $\alpha_s(M_Z)$ in next-to-next-to-leading order QCD using H1 jet cross section measurements

Author: H1 collaboration, Andreev, V., Baghdasaryan, A., Begzsuren, K., Belousov, A., Bertone, V., Bolz, A., Boudry, V., Brandt, G., Brisson, V., Britzger, D., Buniatyan, A., Bylinkin, A., Bystritskaya, L., Campbell, A. J., Avila, K. B. Cantun, Cerny, K., Chekelian, V., Contreras, J. G., Cvach, J., Currie, J., Dainton, J. B., Daum, K., Diaconu, C., Dobre, M., Dodonov, V., Eckerlin, G., Egli, S., Elsen, E., Favart, L., Fedotov, A., Feltesse, J., Fleischer, M., Fomenko, A., Gabathuler, E., Gayler, J., Gehrmann, T., Ghazaryan, S., Goerlich, L., Gogitidze, N., Gouzevitch, M., Grab, C., Grebenyuk, A., Greenshaw, T., Grindhammer, G., Gwenlan, C., Haidt, D., Henderson, R. C. W., Hladky, J., Hoffmann, D., Horisberger, R., Hreus, T., Huber, F., Huss, A., Jacquet, M., Janssen, X., Jung, A. W., Jung, H., Kapichine, M., Katzy, J., Kiesling, C., Klein, M., Kleinwort, C., Kogler, R., Kostka, P., Kretzschmar, J., Krücker, D., Krüger, K., Landon, M. P. J., Lange, W., Laycock, P., Lebedev, A., Levonian, S., Lipka, K., List, B., List, J., Lobodzinski, B., Malinovski, E., Martyn, H. -U., Maxfield, S. J., Mehta, A., Meyer, A. B., Meyer, H., Meyer, J., Mikocki, S., Morozov, A., Müller, K., Naumann, Th., Newman, P. R., Niebuhr, C., Niehues, J., Nowak, G., Olsson, J. E., Ozerov, D., Pascaud, C., Patel, G. D., Perez, E., Petrukhin, A., Picuric, I., Pirumov, H., Pitzl, D., Plačakytė, R., Polifka, R., Rabbertz, K., Radescu, V., Raicevic, N., Ravdandorj, T., Reimer, P., Rizvi, E., Robmann, P., Roosen, R., Rostovtsev, A., Rotaru, M., Šálek, D., Sankey, D. P. C., Sauter, M., Sauvan, E., Schmitt, S., Schoeffel, L., Schöning, A., Sefkow, F., Shushkevich, S., Soloviev, Y., Sopicki, P., South, D., Spaskov, V., Specka, A., Steder, M., Stella, B., Straumann, U., Sutton, M. R., Sykora, T., Thompson, P. D., Traynor, D., Truöl, P., Tsakov, I., Tseepeldorj, B., Valkárová, A., Vallée, C., Van Mechelen, P., Vazdik, Y., Wegener, D., Wünsch, E., Žáček, J., Zhang, Z., Žlebčík, R., Zohrabyan, H., and Zomer, F.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: The strong coupling constant $\alpha_s(M_Z)$ is determined from inclusive jet and dijet cross sections in neutral-current deep-inelastic $ep$ scattering (DIS) measured at HERA by the H1 collaboration using next-to-next-to-leading order (NNLO) QCD predictions. The dependence of the NNLO predictions and of the resulting value of $\alpha_s(M_Z)$ at the $Z$-boson mass $m_Z$ are studied as a function of the choice of the renormalisation and factorisation scales. Using inclusive jet and dijet data together, the strong coupling constant is determined to be $\alpha_s(M_Z)=0.1166\,(19)_{\rm exp}\,(24)_{\rm th}$. Complementary, $\alpha_s(M_Z)$ is determined together with parton distribution functions of the proton (PDFs) from jet and inclusive DIS data measured by the H1 experiment. The value $\alpha_s(M_Z)=0.1147\,(25)_{\rm tot}$ obtained is consistent with the determination from jet data alone. The impact of the jet data on the PDFs is studied. The running of the strong coupling is tested at different values of the renormalisation scale and the results are found to be in agreement with expectations., Comment: 45 pages, 17 figures, with changes discussed in an erratum submitted to EPJ C
Published: 2017

8. Comment on arXiv:1612.01502 'Is the Trineutron Resonance Lower in Energy than a Tetraneutron Resonance ?'

Author: Truöl, P. and MIller, J. P.
Subjects: Nuclear Experiment
Abstract: Comment on the article by S. Gandolfi et al. Phys.Rev.Letters 118 (2017), 232501; arXiv:1612.01502 [nucl-th]
Published: 2017

9. Running of the Charm-Quark Mass from HERA Deep-Inelastic Scattering Data

Author: Gizhko, A., Geiser, A., Moch, S., Abt, I., Behnke, O., Bertolin, A., Blümlein, J., Britzger, D., Brugnera, R., Buniatyan, A., Bussey, P. J., Carlin, R., Cooper-Sarkar, A. M., Daum, K., Dusini, S., Elsen, E., Favart, L., Feltesse, J., Foster, B., Garfagnini, A., Garzelli, M., Gayler, J., Haidt, D., Hladky, J., Jung, A. W., Kapichine, M., Korzhavina, I. A., Levchenko, B. B., Lipka, K., Lisovyi, M., Longhin, A., Mikocki, S., Naumann, Th., Nowak, G., Paul, E., Plačakytė, R., Rabbertz, K., Schmitt, S., Shcheglova, L. M., Si, Z., Spiesberger, H., Stanco, L., Truöl, P., Tymieniecka, T., Verbytskyi, A., Wichmann, K., Wing, M., Żarnecki, A. F., Zenaiev, O., and Zhang, Z.
Subjects: High Energy Physics - Phenomenology
Abstract: Combined HERA data on charm production in deep-inelastic scattering have previously been used to determine the charm-quark running mass $m_c(m_c)$ in the MSbar renormalisation scheme. Here, the same data are used as a function of the photon virtuality $Q^2$ to evaluate the charm-quark running mass at different scales to one-loop order, in the context of a next-to-leading order QCD analysis. The scale dependence of the mass is found to be consistent with QCD expectations., Comment: 12 pages, 4 figures
Published: 2017
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10. PEN: a low energy test of lepton universality

Author: Pocanic, D., Alonzi, L. P., Baranov, V. A., Bertl, W., Bychkov, M., Bystritsky, Yu. M., Frlez, E., Glaser, C. J., Kalinnikov, V. A., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Lehman, M. C., Mzhavia, D., Palladino, A., Robmann, P., Rozhdestvensky, A. M., Supek, I., Truoel, P., van der Schaaf, A., Velicheva, E. P., Vitz, M. G., and Volnykh, V. P.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment
Abstract: Allowed charged $\pi$ meson decays are characterized by simple dynamics, few available decay channels, mainly into leptons, and extremely well controlled radiative and loop corrections. In that sense, pion decays represent a veritable triumph of the standard model (SM) of elementary particles and interactions. This relative theoretical simplicity makes charged pion decays a sensitive means for testing the underlying symmetries and the universality of weak fermion couplings, as well as for studying pion structure and chiral dynamics. Even after considerable recent improvements, experimental precision is lagging far behind that of the theoretical description for pion decays. We review the current state of experimental study of the pion electronic decay $\pi^+ \to e^+\nu_e(\gamma)$, or $\pi_{e2(\gamma)}$, where the $(\gamma)$ indicates inclusion and explicit treatment of radiative decay events. We briefly review the limits on non-SM processes arising from the present level of experimental precision in $\pi_{e2(\gamma)}$ decays. Focusing on the PEN experiment at the Paul Scherrer Institute (PSI), Switzerland, we examine the prospects for further improvement in the near term., Comment: 11 pages, 5 figures; paper presented at the XIII International Conference on Heavy Quarks and Leptons, 22-27 May 2016, Blacksburg, Virginia, USA
Published: 2017

11. Repolarization of Negative Muons by Polarized $^{209}$Bi Nuclei

Author: Kadono, R., Imazato, J., Ishikawa, T., Nishiyama, K., Nagamine, K., Yamazaki, T., Bosshard, A., Döbeli, M., van Elmbt, L., Schaad, M., Truöl, P., Bay, A., Perroud, J. P., Deutsch, J., Tasiaux, B., and Hagn, E.
Subjects: Nuclear Experiment
Abstract: A large $\mu^-$ polarization was achieved in muonic Bi atoms with the help of the strong hyperfine field in a polarized nuclear target. Using $^{209}$Bi nuclei polarized to ($59\pm9$)% in ferromagnetic BiMn, we observed a $\mu$-$e$ decay asymmetry of ($13.1\pm3.9$)%, which gives $\mu^-$ polarization per nuclear polarization equal to $-1.07\pm 0.35$. This value is almost consistent with $-0.792$ calculated for nuclei with spin $I= \frac{9}{2}$ and a positive magnetic moment under the assumption that the hyperfine interaction becomes effective in the lowest muonic states., Comment: Corrected version of original paper, 4 pages, 2 figures, corrections indicated by red
Published: 2016
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12. New results in rare allowed muon and pion decays

Author: Pocanic, D., Munyangabe, E., Bychkov, M., Baranov, V. A., Bertl, W., Bystritsky, Yu. M., Frlez, E., Kalinnikov, V. A., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Lehman, M. C., Mekterovic, D., Mzhavia, D., Palladino, A., Robmann, P., Rozhdestvensky, A. M., Supek, I., Truoel, P., Tsamalaidze, Z., van der Schaaf, A., Vandevender, B., Velicheva, E. P., and Volnykh, V. P.
Subjects: Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: Simple dynamics, few available decay channels, and highly controlled radiative and loop corrections, make pion and muon decays a sensitive means of exploring details of the underlying symmetries. We review the current status of the rare decays: pi+ -> e+ nu, pi+ -> e+ nu gamma, pi+ -> pi0 e+ nu, and mu+ -> e+ nu nu-bar gamma. For the latter we report new preliminary values for the branching ratio B(E_gamma >10 MeV, theta_(e-gamma) > 30deg) = 4.365 (9)_stat (42)_syst x 10^{-3}, and the decay parameter eta-bar = 0.006 (17)_stat (18)_syst, both in excellent agreement with standard model predictions. We review recent measurements, particularly by the PIBETA and PEN experiments, and near-term prospects for improvement. These and other similar precise low energy studies complement modern collider results materially., Comment: 5 pages, 2 figures, talk presented at the 9th International Workshop on e+ e- Collisions "From phi to psi 2013", held in Rome, 9-12 Sept 2013
Published: 2014
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13. New studies of allowed pion and muon decays

Author: Pocanic, D., Palladino, A., Alonzi, L. P., Baranov, V. A., Bertl, W., Bychkov, M., Bystritsky, Yu. M., Frlez, E., Kalinnikov, V. A., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Lehman, M. C., Mekterovic, D., Munyangabe, E., Mzhavia, D., Robmann, P., Rozhdestvensky, A. M., Shkarovskiy, S. N., Straumann, U., Supek, I., Truöl, P., Tsamalaidze, Z., van der Schaaf, A., Velicheva, E. P., and Volnykh, V. P.
Subjects: High Energy Physics - Experiment, Nuclear Experiment
Abstract: Building on the rare pion and muon decay results of the PIBETA experiment, the PEN collaboration has undertaken a precise measurement of B_{\pi e2} = R^\pi_{e/\mu}, the \pi^+ -> e^+\nu(\gamma) decay branching ratio, at the Paul Scherrer Institute, to reduce the present 40\times experimental precision lag behind theory to ~ 6-7\times. Because of large helicity suppression, R^\pi_{e/\mu} is uniquely sensitive to contributions from non-(V-A) physics, making this decay a particularly suitable subject of study. Even at current precision, the experimental value of B_{\pi e2} provides the most accurate test of lepton universality available. During runs in 2008-10, PEN has accumulated over 2\times 10^7 \pi_{e2} events; a comprehensive maximum-likelihood analysis is currently under way. The new data will also lead to improved precision of the earlier PIBETA results on radiative \pi and \mu decays., Comment: 3 pages, 3 figures, to appear in Proceedings, 11th Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2012), held at St. Petersburg, Florida, 29 May - 3 June 2012
Published: 2012
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14. PEN: a sensitive search for non-(V-A) weak processes

Author: PEN Collaboration, Pocanic, D., Alonzi, L. P., Baranov, V. A., Bertl, W., Bychkov, M., Bystritsky, Yu. M., Frlez, E., Kalinnikov, V. A., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Mekterovic, D., Mzhavia, D., Palladino, A., Robmann, P., Rozhdestvensky, A. M., Shkarovskiy, S. N., Straumann, U., Supek, I., Truoel, P., Tsamalaidze, Z., van der Schaaf, A., Velicheva, E. P., and Volnykh, V. P.
Subjects: High Energy Physics - Experiment
Abstract: A new measurement of $B_{\pi e2}$, the $\pi^+ \to e^+\nu(\gamma)$ decay branching ratio, is currently under way at the Paul Scherrer Institute. The present experimental result on $B_{\pi e2}$ constitutes the most accurate test of lepton universality available. The accuracy, however, still lags behind the theoretical precision by over an order of magnitude. Thanks to the large helicity suppression of $\pi_{e2}$ decay, the branching ratio is susceptible to significant contributions from new physics, making this decay a particularly suitable subject of study., Comment: 4 pages, 1 figure, talk given at the 18th International Conference on Particles and Nuclei (PANIC08), held 9 -14 November 2008 in Eilat, Israel; to appear in the Proceedings published by North Holland
Published: 2009

15. PEN experiment: a precise measurement of the pi+ -> e+ nu decay branching fraction

Author: PEN Collaboration, Pocanic, D., Alonzi, L. P., Baranov, V. A., Bertl, W., Bychkov, M., Bystritsky, Yu. M., Frlez, E., Kalinnikov, V. A., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Mekterovic, D., Mzhavia, D., Palladino, A., Robmann, P., Rozhdestvensky, A. M., Shkarovskiy, S. N., Straumann, U., Supek, I., Truoel, P., Tsamalaidze, Z., van der Schaaf, A., Velicheva, E. P., and Volnykh, V. P.
Subjects: High Energy Physics - Experiment
Abstract: A new measurement of $B_{\pi e2}$, the $\pi^+ \to e^+\nu(\gamma)$ decay branching ratio, is currently under way at the Paul Scherrer Institute. The present experimental result on $B_{\pi e2}$ constitutes the most accurate test of lepton universality available. The accuracy, however, still lags behind the theoretical precision by over an order of magnitude. Because of the large helicity suppression of the $\pi_{e2}$ decay, its branching ratio is susceptible to significant contributions from new physics, making this decay a particularly suitable subject of study., Comment: 4 pages, 3 figures, talk given at the Tenth Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2009), La Jolla/San Diego, CA, 26-31 May 2009; to appear in Proceedings to be published by the American Institute of Physics
Published: 2009
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16. Precise Measurement of pi+ -> e+ nu Branching Ratio

Author: Frlež, E., Alonzi, L. P., Baranov, V. A., Bertl, W., Bychkov, M., Bystritsky, Yu. M., Khomutov, N. V., Korenchenko, A. S., Korenchenko, S. M., Korolija, M., Kozlowski, T., Kravchuk, N. P., Kuchinsky, N. A., Mekterović, D., Mzhavia, D., Palladino, A., Počanić, D., Robmann, P., Rozhdestvensky, A. M., Sidorkin, V. V., Straumann, U., Supek, I., Truöl, P., van der Schaaf, A., Velicheva, E. P., and Volnykh, V. P.
Subjects: High Energy Physics - Experiment
Abstract: The PEN Collaboration is conducting a new measurement of the pi+ -> e+ nu branching ratio at the Paul Scherrer Institute, with the goal uncertainty of delta B/B(pie2)=5E-4 or lower. At present, the combined accuracy of all published pie2 decay measurements lags behind the theoretical calculation by a factor of 40. In this contribution we report on the PEN detector configuration and its performance during two development runs done in 2007 and 2008., Comment: pdflatex, 11 pages, 5 figures, to be published in "Progress in High-Energy Physics and Nuclear Safety", NATO Science for Peace Series: B - Physics and Biophysics
Published: 2008
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17. A Vertex Trigger based on Cylindrical Multiwire Proportional Chambers

Author: Becker, J., Bösiger, K., Lindfeld, L., Müller, K., Robmann, P., Schmitt, S., Schmitz, C., Steiner, S., Straumann, U., Szeker, K., Truöl, P., Urban, M., Vollhardt, A., Werner, N., Baumeister, D., Löchner, S., and Hildebrandt, M.
Subjects: Physics - Instrumentation and Detectors
Abstract: The article describes the technical implementation and the performance of the z-vertex trigger (CIP2k), which is part of the H1-experiment at HERA., Comment: 26 pages, 16 figures, submitted to Nuclear Instruments and Methods in Physics Research A
Published: 2006
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18. First observation of the decay K+ -> e+ nu mu+ mu-

Author: Ma, H., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Herold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Lichard, P., Lowe, J., Lozano, J., Majid, W., Pislak, S., Poblaguev, A. A., Rehak, P., Sher, A., Thompson, J. A., Truoel, P., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: Experiment 865 at the Brookhaven AGS has observed the decay K^+ -> e^+ nu mu^+ mu^-. The branching ratio extracted is (1.72 +/- 0.37(stat) +/- 0.17(syst) +/- 0.19(model)) x 10^{-8} where the third term in the error results from the use of a model to extrapolate into a kinematic region dominated by background., Comment: 4 pages, 6 figures, Revtex4. Correction to figure and minor text changes
Published: 2005
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19. An Improved upper limit on the decay K^+ -> pi^+ mu^+ e^-

Author: Sher, Aleksey, Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Harold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Lichard, P., Lowe, J., Lozano, J., Ma, H., Majid, W., Pislak, S., Poblaguev, A. A., Rehak, P., Sher, A., Thompson, J. A., Truoel, P., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: Based on results of a search for the lepton-family-number-violating decay $K^+ \to \pi^+\mu^+ e^-$ with data collected by experiment E865 at the Alternating Gradient Synchrotron of Brookhaven National Laboratory, we place an upper limit on the branching ratio at $2.1 \times 10^{-11}$ (90% C.L.). Combining the results with earlier E865 data and those of a previous experiment, E777, an upper limit on the branching ratio of $1.3 \times 10^{-11}$ (90% C.L.) is obtained., Comment: v2: 13 pages, submitted to the Phys. Rev. D v3: 13 pages, resubmitted to Phys. Rev. D (corrections include: a more detailed overview of the combined analysis of the available experimntal data)
Published: 2005
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20. High statistics measurement of Ke4 decay properties

Author: Pislak, S., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Fischer, H., Herold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Lichard, P., Lowe, J., Lozano, J., Ma, H., Majid, W., Poblaguev, A. A., Rehak, P., Sher, A., Sher, Aleksey, Thompson, J. A., Truöl, P., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: We report experimental details and results of a new measurement of the decay K+ -> pi+pi-e+nue (Ke4}. A sample of more than 400,000 Ke4 events with low background has been collected by Experiment 865 at the Brookhaven Alternate Gradient Synchrotron. From these data, the branching ratio (4.11+-0.01+-0.11)*10**(-5) and the pi-pi invariant mass dependence of the form factors F, G, and H of the weak hadronic current as well as the phase shift difference delta00-delta11 for pi-pi-scattering were extracted. Using constraints based on analyticity and chiral symmetry, a new value with considerably improved accuracy for the s-wave pi-pi-scattering length a00 has been obtained also: a00=0.216+-0.013 (stat.)+-0.002(syst.)+-0.002(theor.)., Comment: 15 pages, 10 figures, submitted to Phys. Rev. D
Published: 2003
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21. Studies of aging and HV break down problems during development and operation of MSGC and GEM detectors for the Inner Tracking System of HERA-B

Author: Collaboration, HERA-B Inner Tracker, Bagaturia, Y., Baruth, O., Dreis, H. B., Eisele, F., Gorbunov, I., Gradl, S., Gradl, W., Hausmann, S., Hildebrandt, M., Hott, T., Keller, S., Krauss, C., Lomonosov, B., Negodaev, M., Richter, C., Robmann, P., Schmidt, B., Straumann, U., Truoel, P., Visbeck, S., Walter, T., Werner, C., Werthenbach, U., Zech, G., Zeuner, T., and Ziegler, M.
Subjects: High Energy Physics - Experiment
Abstract: The results of five years of development of the inner tracking system of the HERA-B experiment and first experience from the data taking period of the year 2000 are reported. The system contains 184 chambers, covering a sensitive area of about 20 * 20 cm2 each. The detector is based on microstrip gas counters (MSGCs) with diamond like coated (DLC) glass wafers and gas electron multipliers (GEMs). The main problems in the development phase were gas discharges in intense hadron beams and aging in a high radiation dose environment. The observation of gas discharges which damage the electrode structure of the MSGC led to the addition of the GEM as a first amplification step. Spurious sparking at the GEM cannot be avoided completely. It does not affect the GEM itself but can produce secondary damage of the MSGC if the electric field between the GEM and the MSGC is above a threshold depending on operation conditions. We observed that aging does not only depend on the dose but also on the spot size of the irradiated area. Ar-DME mixtures had to be abandoned whereas a mixture of 70% Ar and 30% CO2 showed no serious aging effects up to about 40 mC/cm deposited charge on the anodes. X-ray measurements indicate that the DLC of the MSGC is deteriorated by the gas amplification process. As a consequence, long term gain variations are expected. The Inner Tracker has successfully participated in the data taking at HERA-B during summer 2000., Comment: 29 pages, 22 figures
Published: 2002
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22. Experimental Study of the Radiative Decays K+ -> mu+ nu e+e- and K+ -> e+ nu e+e-

Author: Poblaguev, A. A., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Herold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Lichard, P., Lowe, J., Lozano, J., Ma, H., Majid, W., Pislak, S., Rehak, P., Sher, A., Thompson, J. A., Truoel, P., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: Experiment 865 at the Brookhaven AGS obtained 410 K+ -> e+ nu e+e- and 2679 K+ -> mu+ nu e+e- events including 10% and 19% background. The branching ratios were measured to be (2.48+-0.14(stat.)+-0.14(syst.))x10^-8 (m_ee>150 MeV) and (7.06+-0.16+-0.26)x10^-8 (m_ee>145 MeV), respectively. Results for the decay form factors are presented., Comment: 4 pages, 3 figures, RevTeX4
Published: 2002
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23. New Results on Rare and Forbidden Semileptonic $K^+$ Decays

Author: Truoel, Peter
Subjects: High Energy Physics - Experiment
Abstract: Experiment E865 at the Brookhaven AGS was set up primarily to search for the lepton flavour violating decay $K^+\to \pi^+\mu^+e^-$ ($K_{\pi\mu e}$) with high sensitivity. The flexibility of the apparatus allowed also to obtain more than an order of magnitude larger than previously available event samples on the following decay modes: $ \pi^+e^+e^- (K_{\pi ee})$, $\pi^+\mu^+\mu^- (K_{\pi\mu\mu})$, $\pi^+\pi^-e^+\nu_e (K_{e4})$, $\mu^+e^+e^-\nu_\mu$, and $e^+e^+e^-\nu_e$. The report focusses on the $K_{\pi\mu e}$ results and those on other lepton flavour violating decays as well as the $K_{e4}$ data, from which a new, quite precise value for the s-wave $\pi\pi$ scattering length can be deduced., Comment: 15 pages, 6 figures
Published: 2000

24. Search for Lepton Flavor Violation in $K^+$ Decays

Author: Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Fischer, H., Herold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Lichard, P., Lowe, J., Lozano, J., Ma, H., Majid, W., Menzel, W., Pislak, S., Poblaguev, A. A., Rehak, P., Sher, A., Thompson, J. A., Truoel, P., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: A search for lepton flavor violating decays, \kmmp, \keep, \kpem, \kmep and \pizem, was performed using the data collected in E865 at the Brookhaven Alternating Gradient Synchrotron. No signal was found in any of the decay modes. At the 90% confidence level, the branching ratios are less than $3.0\times10^{-9}$, $6.4\times10^{-10}$, $5.2\times10^{-10}$, $5.0\times10^{-10}$ and $3.4\times10^{-9}$ respectively., Comment: one latex file (prllfv.tex), 4 pages, 6 Figs in eps
Published: 2000
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25. An Improved Limit on the Rate Of Decay K+ -> pi+ mu+ e-

Author: Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Brown, D. N., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Felder, C., Fischer, H., Gach, M., Herold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Leipuner, L., Lichard, P., Lowe, J., Lozano, J., Ma, H., Majid, W., Menzel, W., Pislak, S., Poblaguev, A. A., Postoev, V. E., Proskurjakov, A. L., Rehak, P., Robmann, P., Sher, A., Thompson, J. A., Truoel, P., Weyer, H., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: The experiment E865 at BNL places an upper limit on the branching ratio for the decay K+ -> pi+ mu+ e- of 3.9x10^-11 (90% C.L.). Along with with other results this yields a combined upper limit on this branching ratio of 2.8x10^-11. A new upper limit on the branching ratio for pi0 -> mu+ e- of 3.8x10^-10 (90% C.L.) is also established. The experiment and analysis are described., Comment: 5 pages, 4 figures, Submitted to Phys. Rev. Lett
Published: 2000
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26. A New Measurement of the Rare Decay $K^+\to \pi^+ \mu^+ \mu^-$

Author: Ma, H., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D., Cheung, N., Dhawan, S., Do, H., Egger, J., Eilerts, S., Fischer, H., Herold, W., Issakov, V. V., Kaspar, H., Kraus, D. E., Lazarus, D. M., Lichard, P., Lowe, J., Lozano, J., Majid, W., Menzel, W., Pislak, S., Poblaguev, A. A., Rehak, P., Sher, A., Thompson, J. A., Truoel, P., and Zeller, M. E.
Subjects: High Energy Physics - Experiment
Abstract: More than 400 $K^{+}\to\pi^{+}\mu^+\mu^-$ events were observed in a rare $K^+$ decay experiment at the AGS. Normalized to the $K^{+}\to\pi^{+}\pi^+\pi^-$ decay, the branching ratio is determined to be $(9.22 \pm 0.60 (stat) \pm 0.49 (syst))\times 10^{-8}$. This branching ratio and the $\mu\mu$ mass spectrum is in very good agreement with the measurement of the $K^{+}\to\pi^{+}e^+e^-$ decay, but deviates significantly from the previous measurement., Comment: 4 pages, 6 figures in 7 eps files. Paper to be submitted to Phys Rev Lett
Published: 1999
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27. A SCINTILLATION COUNTER ARRAY FOR DETECTION OF HIGH ENERGY NEUTRONS

Author: Parsons, Anthony S. L., Truoel, Peter, Berardo, Peter A., Haddock, Roy P., Verhey, Lynn, and Zeller, Michael E.
Published: 1969

28. RADIATIVE PION-CAPTURE IN 12C

Author: Bistirlich, James A., Crowe, Kenneth M., Parsons, Anthony S.L., Skarek, P., and Truoel, P.
Published: 1970

29. GAMMA-SPECTRA FROM RADIATIVE PION CAPTURE IN CARBON

Author: Bistirlich, James A., Crowe, Kenneth M., Parsons, Anthony S.L., Skarek, Paul, and Truoel, Peter.
Published: 1969

30. MEASUREMENT OF THE n""p -^-n >- DIFFERENTIAL CROSS SECTION NEAR THE Pi;l(H+6O), ROPER RESONANCE

Author: Berardo, P.A., Haddock, R.P., Nefkens, B.M.K., Verhey, L.J., Zeller, M.E., Parsons, A.S.L., and Truoel, P.
Published: 1970

31. RADIATIVE PION CAPTURE IN He

Author: Bistirlich, James A., Crowe, Kenneth M., Parsons, Anthony S.L., Skarek, Paul, Truoel, Peter, and Werntz, Carl.
Published: 1970

32. ALPHA-DEUTERON STRUCTURE OF THE 6Li GROUND STATE

Author: Truoel, Peter and Bierter, Willy.
Published: 1969

33. IN SEARCH OF THE ROPER RESONANCE IN n- + p u> T + n

Author: Nefkens, B.M.K., Berardo, P., Haddock, R.P., Verhey, L.J., Zeller, M.E., Parsons, A.S.L., and Truoel, P.
Published: 1969

34. Measurement of the proton structure function FL(x,Q2) at low x

Author: L. Finke, Roland Horisberger, H. Peng, Y.C. Zhu, K. Daum, A. Valkárová, K. H. Hiller, R. C. W. Henderson, Matthias Ulrich Mozer, B. R. Grell, A. Fedotov, K. B. Cantun Avila, Calin Alexa, F. Tomasz, S. Vinokurova, T. Kluge, David M. South, S. Shushkevich, Sakar Osman, A. Eliseev, E. E. Elsen, J. Bracinik, P. Kostka, A. Specka, I. Sheviakov, J. Ferencei, Laurent Schoeffel, Judith Katzy, P. E. Reimer, E. Wuensch, C. Kiesling, E. Tzamariudaki, A. J. Campbell, J. Turnau, K. Begzsuren, M. Mudrinic, Alessandro Bacchetta, I. Tsakov, I. Picuric, C. Pascaud, A. Makankine, Pavel Murin, J. Zálešák, K. Urban, Murrough Landon, K. Krastev, V. Spaskov, G. Li, S. Ghazaryan, G. Buschhorn, D. Ozerov, Th. D. Papadopoulou, Paul Laycock, Emmanuelle Perez, Tim Greenshaw, V. Jemanov, Guenter Eckerlin, E. Malinovski, V. Yeganov, A. B. Meyer, Emmanuel Sauvan, M. Beckingharn, V. Michels, C. Wissing, A. Baghdasaryan, A. Rostovtsev, M. Kraemer, Leif J. Jönsson, Dave Sankey, Benoit Roland, J. Delvax, J. B. Dainton, G. Grindhammer, F. Moreau, S. J. Aplin, Ricardo Lopez-Fernandez, T. Klimkovich, Richard Polifka, S. M. Piec, A. Raspiareza, S. Schmidt, V. Chekelian, F. D. Aaron, Laurent Favart, A. Nikiforov, Karel Cerny, I. Panagoulias, M. Steder, M. Kapichine, M. Nozicka, D. Hoffmann, S. Habib, Th. Naumann, Ll. Marti, P. Van Mechelen, I. Bozovic-Jelisavcic, S. Essenov, M. Sauter, G. D. Patel, Wolfgang Lange, M. Goettlich, Biljana Antunović, Dusan Bruncko, O. Pejchal, J. Gayler, A. Falkiewicz, Krzysztof Kutak, B. Naroska, M. E. Janssen, E. Gabathuler, T. H. Tran, D.P. Johnson, J. E. Olsson, W. Bartel, T. Sykora, Malte Hildebrandt, B. Delcourt, G. Laštovička-Medin, A. Glazov, I. R. Kenyon, G. Leibenguth, T. Ravdandorj, Claus Kleinwort, E. Barrelet, A. D.R. Vargas Trevino, V. Lubimov, P. Baranov, M. Jacquet, Natasa Raicevic, Vincent Boudry, C. Niebuhr, Benno List, A. N. Morozov, R. Placakyte, J. E. Ruiz Tabasco, E. A. De Wolf, A. Knutsson, Karlheinz Meier, R. Roosen, M. Gouzevitch, J. V. Morris, Jenny List, R. Kogler, T. J. Sloan, P.J.W. Faulkner, Peter Robmann, I. Milcewicz-Mika, T. Zimmermann, A.S. Belousov, S. Egli, Sergey Rusakov, M. Fleischer, Zhiqing Zhang, K. Nankov, L. N. Shtarkov, J. Feltesse, J. Cvach, A. Dubak, Gerhard Brandt, A. Schoening, Y. de Boer, A.J. Rahmat, A. Bunyatyan, D. Salek, Marina Rotaru, S. Backovic, U. Straumann, Y. Soloviev, K. Nowak, Bogdan Povh, V. Volchinski, Zuzana Rurikova, N. Loktionova, F. Sefkow, H. Meyer, Y. Vazdik, A. Hovhannisyan, Stephen Maxfield, P.D. Thompson, M. Deak, T. Preda, K. Krueger, V. Korbel, Andrew Mehta, N. Gogitidze, J. Zacek, P. A. Smirnov, I. Tsurin, M. Brinkmann, Katerina Lipka, Xavier Janssen, Paul Richard Newman, Grzegorz Nowak, V. Tchoulakov, A. Dossanov, P. Sopicki, R.N. Shaw-West, Mila Pandurovic, A. M. Fomenko, A. Petrukhin, A. W. Jung, Voica Radescu, Christoph Grab, J. G. Contreras, T. N. Trinh, M.-O. Boenig, Vladimir Andreev, H. U. Martyn, Matthias Klein, G. Thompson, Z. Staykova, A. Lebedev, G. Herrera, Michael R. Wessels, Magnus Hansson, M. Del Degan, V. Brisson, F. Salvaire, Nicolas Berger, L. Goerlich, D. Haidt, A. De Roeck, H. Henschel, J.C. Bizot, B. Tseepeldorj, Eram Rizvi, S. Levonian, A. Zhelezov, V. Dodonov, G. Cozzika, Anna Kropivnitskaya, R. Felst, J-P. Meyer, I. Smijanic, V. Lendermann, C. Schmitz, Hannes Jung, Alexander Zhokin, C. Vallée, A.-I. Lucaci-Timoce, K. Mueller, L. Bystritskaya, H. Zohrabyan, D. Wegener, T. Toll, Hans-Christian Schultz-Coulon, V. Efremenko, Tomas Hreus, S. Mikocki, V. Cerny, B. Olivier, B. Stella, F. Zomer, Stefan Schmitt, Christian Helebrant, Vladimir Palichik, A. Astvatsatourov, John A Coughlan, Pierre Marage, I. Glushkov, O. Behnke, P. Truoel, D. Sunar, A. Cholewa, L. Lytkin, Cristinel Diaconu, Daniel Pitzl, D. Traynor, A. Asmone, F. Cassol-Brunner, Jan Kretzschmar, and Andrej Liptaj
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Proton, 010308 nuclear & particles physics, Parton, HERA, 01 natural sciences, law.invention, Nuclear physics, Cross section (physics), law, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Collider, Beam (structure)
Abstract: A first measurement is reported of the longitudinal proton structure function FL(X, Q(2)) at the ep collider HERA. It is based on inclusive deep inelastic e(+)p scattering cross section measurements with a positron beam energy of 27.5 GeV and proton beam energies of 920, 575 and 460 GeV. Employing the energy dependence of the cross section, FL is measured in a range of squared four-momentum transfers 12
Published: 2008

35. New Measurement of the Rare DecayK+→π+μ+μ−

Author: W. Menzel, A. Sher, V. V. Issakov, D. M. Lazarus, J. Lowe, A. Poblaguev, J. A. Thompson, J. Egger, M. E. Zeller, H. Kaspar, W. Majid, Pavel Rehak, J. Lozano, H. Do, Satish Dhawan, H. Fischer, B. Bassalleck, Hong Ma, G. S. Atoyan, P. Lichard, W. Herold, Douglas Bergman, N. Cheung, S. Eilerts, D. E. Kraus, S. Pislak, P. Truoel, and R. Appel
Subjects: Physics, Particle physics, Branching fraction, Pi, Mass spectrum, General Physics and Astronomy
Abstract: More than 400 $K^{+}\to\pi^{+}\mu^+\mu^-$ events were observed in a rare $K^+$ decay experiment at the AGS. Normalized to the $K^{+}\to\pi^{+}\pi^+\pi^-$ decay, the branching ratio is determined to be $(9.22 \pm 0.60 (stat) \pm 0.49 (syst))\times 10^{-8}$. This branching ratio and the $\mu\mu$ mass spectrum is in very good agreement with the measurement of the $K^{+}\to\pi^{+}e^+e^-$ decay, but deviates significantly from the previous measurement.
Published: 2000

36. Measurement of Charged Particle Spectra in Deep-Inelastic ep Scattering at HERA

Author: Peter Robmann, I. Picuric, Guenter Eckerlin, S. Baghdasaryan, Jan Hladky, P. Sopicki, A. M. Fomenko, Daniel Pitzl, P. Kostka, K. B. Cantun Avila, C. Kiesling, Wolfgang Lange, M. Fleischer, H. Pirumov, Dave Sankey, J. Turnau, K. Begzsuren, F. Sefkow, B. Stella, Stefan Schmitt, K. H. Hiller, R. C. W. Henderson, Y. Vazdik, M. Kraemer, I. Tsakov, Vladimir Palichik, V. Lubimov, Th. Naumann, A. Buniatyan, P. Pahl, B. Pokorny, E. Gabathuler, Jan Kretzschmar, Gerhard Brandt, Paul Laycock, E. Malinovski, Emmanuel Sauvan, David M. South, Federico Alberto Ceccopieri, G. Stoiceas, Andre Schoening, Roland Horisberger, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Richard Polifka, A. Valkárová, P. Truoel, Hans-Christian Schultz-Coulon, Murrough Landon, G. Grindhammer, Leif J. Jönsson, J. Zacek, Monica Dobre, A. Baghdasaryan, A. Rostovtsev, Xavier Janssen, A. Specka, Ricardo Lopez-Fernandez, G. D. Patel, H. Meyer, D. Ozerov, L. Goerlich, J. Feltessel, Grzegorz Nowak, Cristinel Diaconu, A. Dossanov, I. Bozovic-Jelisavcic, P. Van Mechelen, P. D. Thompson, Tomas Hreus, J. V. Morris, Jenny List, Z. Staykova, J. B. Dainton, A. Petrukhin, D. J. Fischer, M. Steder, Marina Rotaru, S. Shushkevich, C. Niebuhr, D.K. Nikitin, V. Chekelian, S. Egli, C. Pascaud, R. Felst, V. Andreev, Alexander Bylinkin, C. Vallée, A. Lebedev, Daniel Britzger, E. Hennekemper, D. Haidt, K. Daum, Y. Soloviev, M. Brinkmann, Anastasia Grebenyuk, V. Brisson, S. Levonian, K. Nowak, H. U. Martyn, Eram Rizvi, Laurent Favart, Matthias Klein, B. Lobodzinski, A. J. Campbe, S. Rusakovc, V. Dodonov, M. Jacquet, E. E. Elsen, J-P. Meyer, Calin Alexa, D. Wegener, L. Schoeffell, Zhiqing Zhang, Katerina Lipka, P. E. Reimer, Voica Radescu, I. Milcewicz-Mika, R. Zlebcik, E. Wuensch, Christoph Grab, Dirk L. Hoffmann, Maxime Gouzevitch, B. Tseepeldorj, M. Kapichine, Pavel A. Belov, D. Traynor, Emmanuelle Perez, S. Ghazaryan, Tomas Sykora, M. Sauter, S. Habib, D. Salek, J. E. Olsson, J. Gaylerl, S. Mikocki, T. Greenshaw, Natasa Raicevic, Fabian Zomer, Vincent Boudry, W. Bartell, A. N. Morozov, R. Placakyte, J. Ferencei, Hannes Jung, Benno List, A.S. Belousov, T. Ravdandorj, Mila Pandurovic, M. Herbst, A. V. Fedotov, K. Mueller, L. Bystritskaya, H. Zohrabyan, J. Zálešák, V. Spaskov, Karel Cerny, A. B. Meyer, Roman Kogler, A. Glazov, K. Krueger, G. Contreras, Paul Newman, Claus Kleinwort, U. Straumann, J. Cvach, M. Hildebrande, Stephen Maxfield, Andrew Mehta, N. Gogitidze, G. Herrera, 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 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), H1, H1 Collaboration (ukupan broj autora: 174), 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), and H1 Collaboration
Subjects: Particle physics, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Parton, Elementary particle, Inelastic scattering, 01 natural sciences, 7. Clean energy, 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, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, Scattering, HERA, Deep inelastic scattering, Charged particle, Pseudorapidity, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Charged particle production in deep-inelastic ep scattering is measured with the H1 detector at HERA. The kinematic range of the analysis covers low photon virtualities, 5 < Q^2 < 100 GeV^2, and small values of Bjorken-x, 10^{-4} < x < 10^{-2}. The analysis is performed in the hadronic centre-of-mass system. The charged particle densities are measured as a function of pseudorapidity (eta^*) and transverse momentum (p_T^*) in the range 0< ��^* < 5 and 0< p_T^* < 10$ GeV differentially in x and Q^2. The data are compared to predictions from different Monte Carlo generators implementing various options for hadronisation and parton evolutions., 36 pages, 9 tables, 10 figures, submitted to EPJC
Published: 2013
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37. 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

38. Measurement of beauty photoproduction near threshold using di-electron events with the H1 detector at HERA

Author: Fabian Zomer, Vladimir Andreev, J. Cvach, H. U. Martyn, Matthias Klein, Leif J. Jönsson, R. Zlebcik, Daniel Pitzl, Hannes Jung, Alexander Zhokin, C. Vallée, J. Feltesse, Tomas Sykora, D. Wegener, J-P. Meyer, T. H. Tran, B. Tseepeldorj, B. Pokorny, L. Goerlich, D. Traynor, S. Shushkevich, Jan Kretzschmar, R. Felst, B. Delcourt, Maxime Gouzevitch, S. Mikocki, V. Cerny, Dusan Bruncko, M. Sauter, K. Daum, P. Sopicki, A. M. Fomenko, A. Baghdasaryan, A. Rostovtsev, Zhen Zhang, P. Truoel, Benno List, Wolfgang Lange, Paul Laycock, E. Malinovski, Emmanuel Sauvan, A. Eliseev, Ricardo Lopez-Fernandez, Alexander Bylinkin, T. Greenshaw, Z. Staykova, Roland Horisberger, G. Grindhammer, A. Valkárová, Andre Schoening, Juraj Bracinik, Karel Cerny, Anastasia Grebenyuk, H. Henschel, M. Steder, D. Hoffmann, J. Ferencei, T. Ravdandorj, Roman Kogler, M. Kapichine, E. A. DeWolf, Cristinel Diaconu, C. Niebuhr, Dave Sankey, S. Habib, S. Egli, J. Gayler, M. Fleischer, Laurent Favart, P. E. Reimer, A. Glazov, J. Delvax, G. Laštovička-Medin, Y. Soloviev, P. Kostka, E. Wuensch, Laurent Schoeffel, Katerina Lipka, J. B. Dainton, Mila Pandurovic, J. Zálešák, David South, K. Krueger, J. Turnau, V. Spaskov, Bogdan Povh, F. Sefkow, Calin Alexa, G. D. Patel, Murrough Landon, Pavel A. Belov, K. Begzsuren, A. B. Meyer, Voica Radescu, Christoph Grab, V. Lubimov, I. Tsakov, M. Kraemer, B. Olivier, Gabriel Stoicea, J. E. Olsson, W. Bartel, I. Picuric, H. Pirumov, Malte Hildebrandt, I. Bozovic-Jelisavcic, Guenter Eckerlin, Richard Polifka, S. Ghazaryan, A. Fedotov, K. B. Cantun Avila, A. Dubak, I. R. Kenyon, Natasa Raicevic, V. Chekelian, F. D. Aaron, C. Pascaud, Vincent Boudry, A. Lebedev, E. Barrelet, M. Herbst, D. Salek, L. N. Shtarkov, A. N. Morozov, R. Placakyte, P. Van Mechelen, D. Haidt, D. Ozerov, C. Kiesling, D. J. Fischer, J. E. Ruiz Tabasco, I. Milcewicz-Mika, R. Roosen, Eram Rizvi, V. Dodonov, J. G. Contreras, D.K. Nikitin, A. J. Campbell, K. H. Hiller, J. V. Morris, Jenny List, R. C. W. Henderson, A. Bunyatyan, Marina Rotaru, Paul Newman, J. C. Bizot, Claus Kleinwort, F. Huber, Hans-Christian Schultz-Coulon, U. Straumann, Grzegorz Nowak, Tomas Hreus, A. Dossanov, A. Petrukhin, V. Brisson, Y. Vazdik, A. Specka, Gerhard Brandt, J. Zacek, Xavier Janssen, Stephen Maxfield, Th. Naumann, Andrew Mehta, N. Gogitidze, S. Baghdasaryan, P. Pahl, E. Gabathuler, A. W. Jung, G. Herrera, Daniel Britzger, E. Hennekemper, M. Brinkmann, S. Levonian, K. Nowak, Peter Robmann, S. Backovic, Federico Alberto Ceccopieri, P. D. Thompson, John A Coughlan, B. Stella, Stefan Schmitt, M. Dobre, F. Moreau, B. Lobodzinski, T. J. Sloan, A.S. Belousov, Sergey Rusakov, H. J. Meyer, M. Jacquet, E. E. Elsen, Vladimir Palichik, Emmanuelle Perez, V. Lendermann, K. Mueller, L. Bystritskaya, H. Zohrabyan, 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 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 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), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), H1, 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)-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Aix Marseille Université (AMU)-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)-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 (ukupan broj autora: 197), and H1 Collaboration
Subjects: Particle physics, Photon, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Electron, 7. Clean energy, 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, Parton shower, Engineering (miscellaneous), Quantum chromodynamics, Physics, 010308 nuclear & particles physics, Detector, High Energy Physics::Phenomenology, HERA, Near threshold, Transverse momentum, Physique des particules élémentaires, High Energy Physics::Experiment
Abstract: The cross section for ep → ebb̄X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel bb̄ → eeX' is selected by identifying the semi-electronic decays of the b-quarks. The total production cross section is measured in the kinematic range given by the photon virtuality Q 2≤1 GeV 2, the inelasticity 0. 05≤y≤0. 65 and the pseudorapidity of the b-quarks {pipe}η(b){pipe},{pipe}η(b){pipe}≤2. The differential production cross section is measured as a function of the average transverse momentum of the beauty quarks 〈P T(b)〉 down to the threshold. The results are compared to next-to-leading-order QCD predictions. © 2012 The Author(s)., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2012

39. Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA

Author: Federico Alberto Ceccopieri, B. Stella, Stefan Schmitt, M. Dobre, M. Kraemer, P. Sopicki, Fabian Zomer, P. D. Thompson, David M. South, Richard Polifka, Juraj Bracinik, A. M. Fomenko, I. Milcewicz-Mika, Anastasia Grebenyuk, A. Baghdasaryan, Gerhard Brandt, A. Rostovtsev, J. B. Dainton, F. Moreau, Vladimir Palichik, J. Feltesse, Ilias Panagoulias, Grzegorz Nowak, A. Dossanov, V. Chekelian, F. D. Aaron, Ringaile Placakyte, Max Klein, D. Traynor, Paul Laycock, E. Malinovski, Emmanuel Sauvan, K. Krueger, M. Jacquet, E. E. Elsen, Zhiqing Zhang, A. Petrukhin, Ricardo Lopez-Fernandez, G. Grindhammer, J. Zacek, Xavier Janssen, Hannes Jung, K. Daum, R. Felst, V. Andreev, Alexander Zhokin, P. Truoel, G. Laštovička-Medin, Andre Schoening, V. Lendermann, S. Habib, M. Steder, C. Niebuhr, J. Cvach, Emmanuelle Perez, B. Pokorny, S. Egli, M. Fleischer, C. Pascaud, Christian Helebrant, Y. Soloviev, K. H. Hiller, R. C. W. Henderson, J. E. Olsson, W. Bartel, Calin Alexa, S. M. Piec, Bogdan Povh, Dirk L. Hoffmann, Leif J. Jönsson, Malte Hildebrandt, J. C. Bizot, Z. Staykova, Paul Newman, V. Brisson, C. Vallée, A. Lebedev, F. Huber, John A Coughlan, Tomas Sykora, M. Sauter, F. Sefkow, Y. Vazdik, Dusan Bruncko, K. Nowak, Hans-Christian Schultz-Coulon, S. Shushkevich, I. R. Kenyon, Laurent Schoeffel, Voica Radescu, Claus Kleinwort, Cristinel Diaconu, Laurent Favart, Natasa Raicevic, H. Henschel, Christoph Grab, H. U. Martyn, V. Cerny, Murrough Landon, A. Specka, S. Ghazaryan, D. Haidt, E. Barrelet, Vincent Boudry, Daniel Pitzl, S. Levonian, A. N. Morozov, U. Straumann, P. E. Reimer, T. Kluge, L. Goerlich, Tomas Hreus, A. Eliseev, Benno List, E. Wuensch, J. E. Ruiz Tabasco, E. A. De Wolf, B. R. Grell, R. Roosen, M. Kapichine, Th. Naumann, J-P. Meyer, Daniel Britzger, T. J. Sloan, A.S. Belousov, Th D. Papadopoulou, Eram Rizvi, E. Hennekemper, I. Picuric, Sergey Rusakov, V. Dodonov, S. Baghdasaryan, Guenter Eckerlin, P. Van Mechelen, T. Greenshaw, P. Pahl, Jan Kretzschmar, M. Brinkmann, B. Delcourt, E. Gabathuler, Karel Cerny, D. Wegener, Pavel A. Belov, Ivan Smiljanic, D. Salek, Maxime Gouzevitch, A. Makankine, Pierre Marage, G. Buschhorn, B. Tseepeldorj, Roman Kogler, M. Herbst, Gabriel Stoicea, D. Ozerov, D. J. Fischer, K. Mueller, A. Glazov, Wolfgang Lange, J. Gayler, T. H. Tran, Roland Horisberger, A. Valkárová, J. G. Contreras, L. Bystritskaya, J. Ferencei, J. V. Morris, Jenny List, T. Ravdandorj, Stephen Maxfield, H. Pirumov, A. Bunyatyan, H. Zohrabyan, Andrew Mehta, Marina Rotaru, Peter Robmann, A. Fedotov, N. Gogitidze, S. Mikocki, K. B. Cantun Avila, Katerina Lipka, C. Kiesling, Dave Sankey, J. Zálešák, A. J. Campbell, S. Backovic, J. Delvax, P. Kostka, V. Spaskov, G. D. Patel, J. Turnau, H. Meyer, D.K. Nikitin, A. B. Meyer, I. Bozovic-Jelisavcic, G. Herrera, Mila Pandurovic, V. Lubimov, A. Dubak, L. N. Shtarkov, K. Begzsuren, M. Mudrinic, I. Tsakov, H1 Collaboration, H1 Collaboration (ukupan broj autora: 203), 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 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 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), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, H1, 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Jet (fluid), Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Scattering, Monte Carlo method, FOS: Physical sciences, HERA, Deep inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Positron, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physique des particules élémentaires, ddc:530, High Energy Physics::Experiment, 010306 general physics, Parton shower, Engineering (miscellaneous)
Abstract: Deep-inelastic positron-proton scattering events at low photon virtuality, Q 2, with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Δϕ, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms., The European Physical Journal C, 72 (3), ISSN:1434-6044, ISSN:1434-6052
Published: 2012

40. Measurement of Dijet Production in Diffractive Deep-Inelastic Scattering with a Leading Proton at HERA

Author: Murrough Landon, Grzegorz Nowak, Ivan Smiljanic, Daniel Pitzl, A. Dossanov, A. Petrukhin, D. Salek, P. Van Mechelen, M. Kraemer, Richard Polifka, Federico Alberto Ceccopieri, P. Kostka, J. G. Contreras, P. E. Reimer, E. Wuensch, V. Chekelian, V. Cerny, Benno List, M. Brinkmann, Daniel Britzger, E. Hennekemper, V. Lendermann, J. Turnau, K. Begzsuren, Karel Cerny, M. Mudrinic, F. D. Aaron, David M. South, Th. Naumann, V. Brisson, Roman Kogler, C. Pascaud, C. Vallée, A. Lebedev, A. Glazov, Jan Kretzschmar, B. Delcourt, F. Huber, A. Baghdasaryan, A. Rostovtsev, P. Pahl, E. Gabathuler, D. Wegener, Ricardo Lopez-Fernandez, M. Steder, K. Daum, I. Tsakov, Hans-Christian Schultz-Coulon, E. Barrelet, D. Haidt, Laurent Favart, Paul Newman, Pierre Marage, T. H. Tran, M. Kapichine, Wolfgang Lange, J. Zálešák, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, J. Gayler, S. Shushkevich, J. E. Olsson, W. Bartel, V. Spaskov, K. Mueller, Malte Hildebrandt, Anastasia Grebenyuk, L. Bystritskaya, H. Zohrabyan, Paul Laycock, Claus Kleinwort, E. Malinovski, A. B. Meyer, Eram Rizvi, A. Eliseev, H. Pirumov, Katerina Lipka, I. R. Kenyon, Emmanuel Sauvan, G. Grindhammer, Natasa Raicevic, V. Dodonov, U. Straumann, M. Herbst, Zhiqing Zhang, C. Niebuhr, Vincent Boudry, I. Milcewicz-Mika, S. Mikocki, A. N. Morozov, P. D. Thompson, K. Krueger, Peter Robmann, S. Egli, Dusan Bruncko, Roland Horisberger, A. Valkárová, J. Feltesse, B. R. Grell, P. Truoel, Y. Vazdik, F. Moreau, Ilias Panagoulias, H. U. Martyn, Matthias Klein, Dave Sankey, Gerhard Brandt, S. Habib, T. Greenshaw, Y. Soloviev, J. Delvax, Ringaile Placakyte, D. Traynor, G. D. Patel, H. Meyer, G. Laštovička-Medin, J. Ferencei, Voica Radescu, M. Sauter, Leif J. Jönsson, Pavel A. Belov, T. J. Sloan, J. Zacek, Fabian Zomer, S. Backovic, T. Ravdandorj, Xavier Janssen, I. Bozovic-Jelisavcic, A.S. Belousov, Th D. Papadopoulou, Sergey Rusakov, Christoph Grab, M. Fleischer, Cristinel Diaconu, Gabriel Stoicea, K. H. Hiller, R. C. W. Henderson, V. Lubimov, Juraj Bracinik, J. V. Morris, A. Fedotov, Jenny List, K. B. Cantun Avila, A. Bunyatyan, Marina Rotaru, A. Dubak, Bogdan Povh, C. Kiesling, F. Sefkow, M. Jacquet, E. E. Elsen, J-P. Meyer, A. Specka, A. J. Campbell, L. N. Shtarkov, Hannes Jung, Alexander Zhokin, S. Baghdasaryan, J. B. Dainton, T. Kluge, Emmanuelle Perez, I. Picuric, Guenter Eckerlin, André Schöning, Z. Staykova, Mila Pandurovic, H. Henschel, P. Sopicki, A. M. Fomenko, Tomas Sykora, S. M. Piec, Maxime Gouzevitch, S. Levonian, A. Makankine, G. Buschhorn, D. Ozerov, D. J. Fischer, J. Cvach, K. Nowak, Stephen Maxfield, Andrew Mehta, N. Gogitidze, D.K. Nikitin, G. Herrera, Calin Alexa, S. Ghazaryan, John A Coughlan, B. Tseepeldorj, B. Stella, Stefan Schmitt, M. Dobre, R. Felst, B. Pokorny, L. Goerlich, Vladimir Palichik, Tomas Hreus, V. Andreev, Christian Helebrant, Dirk L. Hoffmann, J. C. Bizot, Laurent Schoeffel, 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 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 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), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, H1, 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)-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H1 Collaboration (ukupan broj autora: 203), and H1 Collaboration
Subjects: Particle physics, Photon, Physics and Astronomy (miscellaneous), Monte Carlo method, FOS: Physical sciences, Parton, 7. Clean energy, 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, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Quantum chromodynamics, Physics, 010308 nuclear & particles physics, Scattering, HERA, Deep inelastic scattering, Distribution function, Physique des particules élémentaires, Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract: The cross section of diffractive deep-inelastic scattering ep→eXp is measured, where the system X contains at least two jets and the leading final state proton is detected in the H1 Forward Proton Spectrometer. The measurement is performed for fractional proton longitudinal momentum loss x ℙ< 0. 1 and covers the range 0. 1< {pipe}t{pipe}, 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2012

41. Inclusive Measurement of Diffractive Deep-Inelastic Scattering at HERA

Author: P. D. Thompson, D. Wegener, M. Kraemer, T. H. Tran, Paul Laycock, E. Malinovski, Emmanuel Sauvan, Richard Polifka, F. Moreau, V. Lubimov, G. Grindhammer, J. Ferencei, Laurent Schoeffel, Grzegorz Nowak, A. Dossanov, A. Petrukhin, B. Lobodzinski, F. D. Aaron, S. Levonian, J. Cvach, A. Dubak, Jan Kretzschmar, C. Niebuhr, S. Egli, Murrough Landon, Wolfgang Lange, Juraj Bracinik, B. Delcourt, Y. Soloviev, S. Mikocki, J. Gayler, G. Laštovička-Medin, L. N. Shtarkov, K. Nowak, T. J. Sloan, A.S. Belousov, Anastasia Grebenyuk, Dusan Bruncko, Th. Naumann, P. Truoel, A. V. Fedotov, Dave Sankey, H. Pirumov, Th D. Papadopoulou, Sergey Rusakov, J. Delvax, H. U. Martyn, P. Pahl, Laurent Favart, Paul Newman, Voica Radescu, T. Greenshaw, E. Gabathuler, J. B. Dainton, Christoph Grab, P. Van Mechelen, V. Brisson, G. D. Patel, H. Meyer, Andre Schoening, K. Mueller, Fabian Zomer, R. Zlebcik, Federico Alberto Ceccopieri, D. Ozerov, T. Ravdandorj, D. J. Fischer, David M. South, A. Rostovtsev, P. Sopicki, Claus Kleinwort, S. Baghdasaryan, A. M. Fomenko, Jan Hladky, A. Baghdasaryan, I. Bozovic-Jelisavcic, K. Daum, Cristinel Diaconu, Calin Alexa, Leif J. Jönsson, Tomas Sykora, M. Sauter, I. Milcewicz-Mika, Peter Robmann, J. Zálešák, J. Feltesse, C. Pascaud, V. Spaskov, C. Vallée, A. Lebedev, Ilias Panagoulias, K. H. Hiller, R. C. W. Henderson, Y. Vazdik, L. Bystritskaya, S. Habib, P. E. Reimer, A. B. Meyer, Max Klein, D. Traynor, Daniel Britzger, E. Hennekemper, E. Barrelet, D. Haidt, S. Backovic, U. Straumann, M. Jacquet, E. E. Elsen, Stephen Maxfield, M. Brinkmann, Hannes Jung, Alexander Zhokin, T. Kluge, H. Zohrabyan, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Eram Rizvi, S. Ghazaryan, Andrew Mehta, A. Specka, K. B. Cantun Avila, E. Wuensch, N. Gogitidze, C. Kiesling, V. Dodonov, Katerina Lipka, A. J. Campbell, Pavel A. Belov, K. Krueger, I. Picuric, Emmanuelle Perez, Guenter Eckerlin, M. Kapichine, D. Salek, G. Herrera, Mila Pandurovic, Gabriel Stoicea, J. V. Morris, Jenny List, M. Fleischer, V. Boudry, J. G. Contreras, A. Bunyatyan, Marina Rotaru, V. Lendermann, Bogdan Povh, F. Sefkow, Zhen Zhang, Ricardo Lopez-Fernandez, V. Cerny, Benno List, Z. Staykova, D.K. Nikitin, M. Steder, H. Henschel, J. E. Olsson, W. Bartel, Malte Hildebrandt, Karel Cerny, M. Herbst, I. R. Kenyon, Roman Kogler, Natasa Raicevic, A. N. Morozov, A. Glazov, R. Placakyte, V. Chekelian, R. Felst, J-P. Meyer, Maxime Gouzevitch, Gerhard Brandt, J. Zacek, Xavier Janssen, F. Huber, Roland Horisberger, A. Valkárová, Hans-Christian Schultz-Coulon, B. Stella, Stefan Schmitt, M. Dobre, Tomas Hreus, Vladimir Palichik, B. Tseepeldorj, B. Pokorny, John A Coughlan, P. Kostka, V. Andreev, J. Turnau, K. Begzsuren, I. Tsakov, L. Goerlich, S. Shushkevich, Dirk L. Hoffmann, J. C. Bizot, A. Eliseev, Alexander Bylinkin, Daniel Pitzl, 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), 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, 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), H1 Collaboration (ukupan broj autora: 199), and H1 Collaboration
Subjects: Particle physics, Proton, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Parton, 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], Rapidity, ddc:530, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Quantum chromodynamics, Physics, 010308 nuclear & particles physics, HERA, Deep inelastic scattering, Physique des particules élémentaires, High Energy Physics::Experiment, Nucleon
Abstract: The diffractive process ep \rightarrow eXY, where Y denotes a proton or its low mass excitation with MY < 1.6 GeV, is studied with the H1 experiment at HERA. The analysis is restricted to the phase space region of the photon virtuality 3 \leq Q2 \leq 1600 GeV2, the square of the four-momentum transfer at the proton vertex |t| < 1.0 GeV2 and the longitudinal momentum fraction of the incident proton carried by the colourless exchange xIP < 0.05. Triple differential cross sections are measured as a function of xIP, Q2 and beta = x/xIP where x is the Bjorken scaling variable. These measurements are made after selecting diffractive events by demanding a large empty rapidity interval separating the final state hadronic systems X and Y . High statistics measurements covering the data taking periods 1999-2000 and 2004-2007 are combined with previously published results in order to provide a single set of diffractive cross sections from the H1 experiment using the large rapidity gap selection method. The combined data represent a factor between three and thirty increase in statistics with respect to the previously published results. The measurements are compared with predictions from NLO QCD calculations based on diffractive parton densities and from a dipole model. The proton vertex factorisation hypothesis is tested., 36 pages, 7 tables, 12 figures, Submitted to EPJC
Published: 2012

42. Inclusive deep inelastic scattering at high Q(2) with longitudinally polarised lepton beams at HERA

Author: B. Tseepeldorj, M. Kraemer, B. Pokorny, Grzegorz Nowak, J. V. Morris, R. Felst, L. Goerlich, Jenny List, J. Feltesse, A. Schoening, Federico Alberto Ceccopieri, A. Dossanov, J. Zacek, Richard Polifka, A. Bunyatyan, Marina Rotaru, J-P. Meyer, Laurent Schoeffel, C. Niebuhr, S. Egli, V. Chekelian, F. D. Aaron, A. Petrukhin, K. Lipka, P. E. Reimer, Paul Laycock, V. Andreev, D. Ozerov, Y. Soloviev, Roland Horisberger, A. Valkárová, E. Malinovski, Daniel Pitzl, Max Klein, D. Traynor, Emmanuel Sauvan, G. Grindhammer, E. Wuensch, Murrough Landon, Calin Alexa, Y. Vazdik, D. Wegener, C. Pascaud, C. Vallée, A. Lebedev, S. Baghdasaryan, I. Picuric, Anastasia Grebenyuk, Maxime Gouzevitch, Guenter Eckerlin, D. Haidt, A. Nikiforov, K. H. Hiller, R. C. W. Henderson, Jan Hladky, Voica Radescu, Stephen Maxfield, Christoph Grab, T. H. Tran, V. Brisson, Eram Rizvi, K. Krueger, S. Ghazaryan, Th. Naumann, Laurent Favart, P. Truoel, Dirk L. Hoffmann, V. Dodonov, J. C. Bizot, Andrew Mehta, M. Herbst, Radek Zlebcik, N. Gogitidze, Jan Kretzschmar, T. J. Sloan, A.S. Belousov, A. Baghdasaryan, A. Rostovtsev, Sergey Rusakov, P. Pahl, M. Dobre, E. Gabathuler, B. Delcourt, P. Van Mechelen, Dave Sankey, Gerhard Brandt, Wolfgang Lange, E. Barrelet, Juraj Bracinik, M. Jacquet, E. E. Elsen, P. Kostka, A. Specka, J. Delvax, Leif J. Jönsson, D. Salek, J. Turnau, G. D. Patel, S. Mikocki, John A Coughlan, Xavier Janssen, J. Gayler, J. E. Ruiz Tabasco, E. A. De Wolf, K. Begzsuren, J. G. Contreras, Emmanuelle Perez, K. Daum, I. Bozovic-Jelisavcic, M. Fleischer, D-J Fischer, B. Stella, R. Roosen, G. Herrera, P. D. Thompson, Pavel A. Belov, I. Tsakov, Stefan Schmitt, H. Pirumov, F. Huber, A. Fedotov, F. Moreau, D.K. Nikitin, M. Kapichine, Cristinel Diaconu, K. B. Cantun Avila, K. Mueller, G. Laštovička-Medin, C. Kiesling, S. Shushkevich, Bogdan Povh, F. Sefkow, S. Levonian, K. Nowak, Peter Robmann, J. B. Dainton, B. Lobodzinski, A. J. Campbell, A. Eliseev, Vladimir Palichik, Gabriel Stoicea, J. Cvach, Alexander Bylinkin, Hu Martyn, H. J. Meyer, P. Sopicki, Mila Pandurovic, Tomas Hreus, Daniel Britzger, E. Hennekemper, J. E. Olsson, Tomas Sykora, W. Bartel, M. Sauter, A. M. Fomenko, Fabian Zomer, Gang Li, Malte Hildebrandt, S. Backovic, H-C. Schultz-Coulon, I. Milcewicz-Mika, Hannes Jung, Alexander Zhokin, V. Lendermann, I. R. Kenyon, Natasa Raicevic, Z. Staykova, H. Henschel, Vincent Boudry, A. N. Morozov, R. Placakyte, Zhen Zhang, Ricardo Lopez-Fernandez, M. Steder, L. Bystritskaya, H. Zohrabyan, V. Cerny, Benno List, S. Habib, M. Brinkmann, David South, V. Lubimov, A. Dubak, L. N. Shtarkov, J. Zálešák, V. Spaskov, A. B. Meyer, Dusan Bruncko, T. Greenshaw, J. Ferencei, T. Ravdandorj, Karel Cerny, Roman Kogler, A. Glazov, Paul Newman, Claus Kleinwort, U. Straumann, H1 Collaboration (ukupan broj autora: 198), 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 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 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), 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, 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), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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)-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)-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), and H1 Collaboration
Subjects: Nuclear and High Energy Physics, Particle physics, Lepton-Nucleon Scattering, FOS: Physical sciences, Parton, 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, 010306 general physics, Charged current, Physics, Quantum chromodynamics, Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, Deep inelastic scattering, Physique des particules élémentaires, High Energy Physics::Experiment, Lepton
Abstract: Inclusive e ± p single and double differential cross sections for neutral and charged current deep inelastic scattering processes are measured with the H1 detector at HERA. The data were taken at a centre-of-mass energy of √s = 319 GeV with a total integrated luminosity of 333.7 pb -1 shared between two lepton beam charges and two longitudinal lepton polarisation modes. The differential cross sections are measured in the range of negative four-momentum transfer squared, Q 2, between 60 and 50000 GeV 2, and Bjorken x between 0.0008 and 0.65. The measurements are combined with earlier published unpolarised H1 data to improve statistical precision and used to determine the structure function xF 3 γ Z. A measurement of the neutral current parity violating structure function F 2 γ Z is presented for the first time. The polarisation dependence of the charged current total cross section is also measured. The new measurements are well described by a next-to-leading order QCD fit based on all published H1 inclusive cross section data which are used to extract the parton distribution functions of the proton., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2012

43. Determination of the Integrated Luminosity at HERA using Elastic QED Compton Events

Author: B. Stella, Dave Sankey, F. Huber, Stefan Schmitt, M. Dobre, J. Delvax, Hans-Christian Schultz-Coulon, P. E. Reimer, G. D. Patel, E. Barrelet, E. Wuensch, J. E. Olsson, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, I. Bozovic-Jelisavcic, W. Bartel, Vladimir Palichik, Tomas Hreus, Malte Hildebrandt, Peter Robmann, Gerhard Brandt, J. Zacek, I. R. Kenyon, Natasa Raicevic, Xavier Janssen, Vincent Boudry, A. N. Morozov, R. Placakyte, Anastasia Grebenyuk, B. Pokorny, Grzegorz Nowak, A. Dossanov, M. Herbst, P. Truoel, A. Petrukhin, S. Backovic, Dirk L. Hoffmann, J. C. Bizot, L. Goerlich, C. Pascaud, C. Vallée, A. Lebedev, John A Coughlan, V. Lubimov, M. Jacquet, E. E. Elsen, Th. Naumann, P. Pahl, V. Brisson, E. Gabathuler, S. Levonian, K. Nowak, Zhen Zhang, Cristinel Diaconu, Ricardo Lopez-Fernandez, D. Haidt, Eram Rizvi, A. Dubak, T. Kluge, Wolfgang Lange, M. Kapichine, Emmanuelle Perez, J-P. Meyer, V. Dodonov, M. Steder, I. Picuric, L. N. Shtarkov, Guenter Eckerlin, J. Gayler, Paul Laycock, Maxime Gouzevitch, B. Tseepeldorj, H. Pirumov, Daniel Pitzl, J. V. Morris, D. Thompson, Jenny List, A. Bunyatyan, J. Cvach, Marina Rotaru, Federico Alberto Ceccopieri, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, K. Daum, Fabian Zomer, P. Sopicki, A. M. Fomenko, D. Salek, S. Shushkevich, D.K. Nikitin, Leif J. Jönsson, I. Milcewicz-Mika, Pavel A. Belov, Juraj Bracinik, S. Baghdasaryan, Jan Kretzschmar, Gabriel Stoicea, Hannes Jung, A. Eliseev, Calin Alexa, J. G. Contreras, B. Delcourt, Alexander Zhokin, R. Felst, S. Habib, S. Ghazaryan, J. B. Dainton, J. Feltesse, Ilias Panagoulias, Laurent Schoeffel, M. Fleischer, Alexander Bylinkin, Max Klein, Murrough Landon, David South, D. Traynor, M. Sauter, T. J. Sloan, A.S. Belousov, Stephen Maxfield, Z. Staykova, Laurent Favart, Bogdan Povh, Th D. Papadopoulou, Sergey Rusakov, P. Van Mechelen, F. Sefkow, H. Henschel, Andrew Mehta, N. Gogitidze, P. Kostka, G. Herrera, J. Turnau, Paul Newman, K. Begzsuren, Claus Kleinwort, I. Tsakov, U. Straumann, Roland Horisberger, A. Valkárová, K. Krueger, M. Kraemer, Richard Polifka, V. Chekelian, F. D. Aaron, J. Zálešák, V. Spaskov, A. B. Meyer, Dusan Bruncko, T. Greenshaw, J. Ferencei, T. Ravdandorj, Karel Cerny, Roman Kogler, A. Glazov, V. Lendermann, F. Moreau, B. Lobodzinski, H. J. Meyer, K. H. Hiller, V. Cerny, Benno List, R. C. W. Henderson, M. Brinkmann, K. Mueller, A. Specka, L. Bystritskaya, H. Zohrabyan, Katerina Lipka, Mila Pandurovic, Vladimir Andreev, H. U. Martyn, R. Zlebcik, A. Baghdasaryan, A. Rostovtsev, G. Laštovička-Medin, C. Niebuhr, S. Egli, Y. Soloviev, D. Ozerov, Voica Radescu, Christoph Grab, D. J. Fischer, Tomas Sykora, D. Wegener, T. H. Tran, S. Mikocki, Andre Schoening, Daniel Britzger, E. Hennekemper, Y. Vazdik, A. Fedotov, K. B. Cantun Avila, C. Kiesling, A. J. Campbell, 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), 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), 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, H1 Collaboration (ukupan broj autora: 198), H1 Collaboration, 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), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Annecy de Physique des Particules (LAPP)
Subjects: Particle physics, Photon, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Electron, 01 natural sciences, High Energy Physics - Experiment, law.invention, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, 010306 general physics, Collider, Engineering (miscellaneous), Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, HERA, Calorimeter, Physique des particules élémentaires, High Energy Physics::Experiment
Abstract: A measurement of the integrated luminosity at the ep collider HERA is presented, exploiting the elastic QED Compton process ep→eγp. The electron and the photon are detected in the backward calorimeter of the H1 experiment. The integrated luminosity of the data recorded in 2003 to 2007 is determined with a precision of 2.3 %. The measurement is found to be compatible with the corresponding result obtained using the Bethe–Heitler process., The European Physical Journal C, 72, ISSN:1434-6044, ISSN:1434-6052
Published: 2012

44. Measurement of Inclusive and Dijet D* Meson Cross Sections in Photoproduction at HERA

Author: Laurent Schoeffel, K. Urban, I. Milcewicz-Mika, Murrough Landon, Juraj Bracinik, E. Barrelet, J. Feltesse, Ilias Panagoulias, J. B. Dainton, D. Traynor, V. Lubimov, Calin Alexa, Hannes Jung, Paul Newman, Alexander Zhokin, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, S. Ghazaryan, M. Fleischer, V. Lendermann, Paul Laycock, P. Van Mechelen, E. Malinovski, Emmanuel Sauvan, B. Pokorny, K. B. Cantun Avila, Stephen Maxfield, Claus Kleinwort, J. Zálešák, C. Niebuhr, H. U. Martyn, G. Grindhammer, V. Spaskov, Leif J. Jönsson, Wolfgang Lange, C. Pascaud, Matthias Klein, C. Kiesling, Bogdan Povh, A. Dubak, Andrew Mehta, N. Gogitidze, P. E. Reimer, U. Straumann, F. Sefkow, M. Jacquet, E. E. Elsen, S. Shushkevich, A. J. Campbell, K. Daum, A. B. Meyer, A. V. Fedotov, D. Wegener, S. Egli, K. H. Hiller, R. C. W. Henderson, V. Andreev, E. Wuensch, C. Vallée, A. Lebedev, T. H. Tran, J. Gayler, Grzegorz Nowak, A. Dossanov, Z. Staykova, Y. Soloviev, K. Mueller, Dusan Bruncko, A. W. Jung, A. Petrukhin, K. Krueger, L. N. Shtarkov, Ivan Smiljanic, D. Haidt, A. Eliseev, D. Salek, H. Henschel, G. Laštovička-Medin, H. Pirumov, P. Sopicki, A. M. Fomenko, G. Herrera, T. Greenshaw, M. Kapichine, A. Specka, John A Coughlan, D.K. Nikitin, M. Herbst, Eram Rizvi, V. Brisson, V. Dodonov, Emmanuelle Perez, L. Bystritskaya, Mila Pandurovic, Christian Helebrant, J. Ferencei, Voica Radescu, Christoph Grab, Dirk L. Hoffmann, S. Mikocki, J. G. Contreras, T. Ravdandorj, Anastasia Grebenyuk, B. Stella, S. M. Piec, Y. Vazdik, H. Zohrabyan, Tomas Sykora, M. Sauter, M. Kraemer, Roland Horisberger, J. C. Bizot, T. Kluge, P. D. Thompson, Stefan Schmitt, M. Dobre, Richard Polifka, A. Valkárová, L. Goerlich, Dave Sankey, I. Picuric, J. Delvax, F. D. Aaron, Guenter Eckerlin, F. Moreau, Andre Schoening, Karel Cerny, David M. South, S. Baghdasaryan, J. Cvach, G. D. Patel, H. Meyer, Th. Naumann, Laurent Favart, Roman Kogler, K. Nowak, A. Makankine, I. Bozovic-Jelisavcic, G. Buschhorn, D. Ozerov, Vladimir Palichik, P. Pahl, V. Chekelian, R. Felst, Peter Robmann, J. V. Morris, A. Baghdasaryan, A. Rostovtsev, D. J. Fischer, A. Glazov, E. Gabathuler, T. J. Sloan, A.S. Belousov, Th D. Papadopoulou, Sergey Rusakov, Jenny List, A. Bunyatyan, P. Kostka, Katerina Lipka, V. Cerny, Benno List, Marina Rotaru, J. Turnau, S. Habib, Federico Alberto Ceccopieri, Daniel Britzger, K. Begzsuren, S. Backovic, E. Hennekemper, F. Huber, M. Mudrinic, I. Tsakov, Hans-Christian Schultz-Coulon, B. Tseepeldorj, Tomas Hreus, Pavel A. Belov, Gabriel Stoicea, Zhen Zhang, Ricardo Lopez-Fernandez, M. Steder, J. E. Olsson, W. Bartel, Malte Hildebrandt, I. R. Kenyon, Natasa Raicevic, Vincent Boudry, A. N. Morozov, R. Placakyte, Gerhard Brandt, J. Zacek, Xavier Janssen, M.-O. Boenig, P. Truoel, S. Levonian, J-P. Meyer, Cristinel Diaconu, Daniel Pitzl, Maxime Gouzevitch, Jan Kretzschmar, B. Delcourt, M. Brinkmann, Fabian Zomer, 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 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 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), 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, 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)-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H1 Collaboration (ukupan broj autora: 204), and H1 Collaboration
Subjects: Quark, Particle physics, Meson, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Charm quark, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, D meson, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, 010306 general physics, Parton shower, Nuclear Experiment, Engineering (miscellaneous), Physics, Mathematics::Operator Algebras, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Perturbative QCD, HERA, Physique des particules élémentaires, High Energy Physics::Experiment
Abstract: The inclusive photoproduction of D * mesons and of D *-tagged dijets is investigated with the H1 detector at the ep collider HERA. The kinematic region covers small photon virtualities Q 21. 8 GeV. The heavy quark production process is further investigated in events with at least two jets with transverse momentum p T(jet)>3. 5 GeV each, one containing the D * meson. Differential cross sections for D *-tagged dijet production and for correlations between the jets are measured in the range {pipe}η(D *){pipe}, 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2012

45. Measurement of <tex>D^{*\pm}$</tex> meson production and determination of <tex>F_{2}^{c\bar{c}}$</tex> at low <tex>Q_{2}$</tex> in deep-inelastic scattering at HERA

Author: T. Toll, J. Feltesse, Ilias Panagoulias, Anastasia Grebenyuk, B. Stella, C. Pascaud, Federico Alberto Ceccopieri, P. E. Reimer, E. Wuensch, Wolfgang Lange, J. Gayler, Stefan Schmitt, M. Dobre, M. Herbst, C. Vallée, A. Lebedev, Ringaile Placakyte, B. R. Grell, D. Traynor, Vladimir Palichik, H. Pirumov, Y. Vazdik, D. Haidt, M. Sauter, G. Laštovička-Medin, J. Zálešák, Pavel A. Belov, Leif J. Jönsson, Eram Rizvi, Th. Naumann, Vladimir Andreev, Daniel Pitzl, H. U. Martyn, Matthias Klein, V. Spaskov, Gabriel Stoicea, Laurent Schoeffel, Juraj Bracinik, K. Urban, Murrough Landon, P. Van Mechelen, K. Daum, S. Habib, Christian Helebrant, V. Dodonov, P. Pahl, A. B. Meyer, E. Gabathuler, David South, Jan Kretzschmar, B. Delcourt, A. Makankine, V. Lubimov, Dirk L. Hoffmann, K. Krueger, J. C. Bizot, G. Buschhorn, A. Dubak, L. N. Shtarkov, D. Ozerov, John A Coughlan, J-P. Meyer, Mila Pandurovic, D. J. Fischer, Zhen Zhang, Andre Schoening, Ricardo Lopez-Fernandez, M. Steder, J. B. Dainton, Roland Horisberger, A. Valkárová, Daniel Britzger, E. Hennekemper, Maxime Gouzevitch, B. Tseepeldorj, Stephen Maxfield, Andrew Mehta, B. Pokorny, N. Gogitidze, F. Huber, D. Wegener, T. H. Tran, A. W. Jung, S. Mikocki, G. Herrera, Cristinel Diaconu, Pierre Marage, Grzegorz Nowak, M. Fleischer, J. Cvach, J. Delvax, J. E. Olsson, W. Bartel, A. Dossanov, Malte Hildebrandt, Tomas Hreus, A. Petrukhin, L. Goerlich, K. Nowak, I. Milcewicz-Mika, I. R. Kenyon, S. Shushkevich, Natasa Raicevic, G. D. Patel, Vincent Boudry, A. Eliseev, A. N. Morozov, I. Bozovic-Jelisavcic, Bogdan Povh, P. D. Thompson, J. V. Morris, P. Kostka, J. Turnau, Jenny List, F. Moreau, A. Bunyatyan, K. Begzsuren, Marina Rotaru, F. Sefkow, M. Mudrinic, I. Tsakov, Dusan Bruncko, T. J. Sloan, A.S. Belousov, H. J. Meyer, Th D. Papadopoulou, Sergey Rusakov, P. Sopicki, A. M. Fomenko, Tomas Sykora, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, M.-O. Boenig, K. Mueller, V. Brisson, H-C. Schultz-Coulon, J. Ferencei, A. Fedotov, K. B. Cantun Avila, P. Truoel, T. Ravdandorj, M. Kraemer, C. Kiesling, M. Jacquet, E. E. Elsen, A. J. Campbell, Richard Polifka, S. Levonian, V. Chekelian, Gerhard Brandt, F. D. Aaron, Emmanuelle Perez, J. Zacek, Xavier Janssen, S. M. Piec, D. P. C. Sankey, T. Kluge, I. Picuric, Guenter Eckerlin, R. Felst, Paul Newman, Claus Kleinwort, Katerina Lipka, K. H. Hiller, R. C. W. Henderson, U. Straumann, A. Specka, E. Barrelet, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Ivan Smiljanic, D. Salek, M. Kapichine, J. G. Contreras, L. Bystritskaya, Laurent Favart, Z. Staykova, H. Zohrabyan, H. Henschel, Calin Alexa, Fabian Zomer, Tim Greenshaw, S. Ghazaryan, Karel Cerny, Roman Kogler, A. Glazov, Hannes Jung, Alexander Zhokin, D.K. Nikitin, V. Cerny, Benno List, C. Niebuhr, S. Egli, Y. Soloviev, Voica Radescu, Christoph Grab, A. Baghdasaryan, A. Rostovtsev, M. Brinkmann, S. Baghdasaryan, Peter Robmann, S. Backovic, V. Lendermann, (ukupan broj autora: 206), 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 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 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), 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, 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), 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), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)
Subjects: perturbation theory [quantum chromodynamics], Particle physics, showers [parton], Physics and Astronomy (miscellaneous), Meson, FOS: Physical sciences, structure function [p], Inelastic scattering, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Charm quark, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, D meson, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, 010306 general physics, Parton shower, Nuclear Experiment, inclusive production [D], Monte Carlo, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Perturbative QCD, HERA, Deep inelastic scattering, mass [charm], differential cross section, deep inelastic scattering [electron p], H1, High Energy Physics::Experiment, 1 [higher-order]
Abstract: Inclusive production of D* mesons in deep-inelastic ep scattering at HERA is studied in the range 5 < Q^2 1.25 GeV and |eta(D*)| < 1.8. The data sample corresponds to an integrated luminosity of 348 pb^{-1} collected with the H1 detector. Single and double differential cross sections are measured and the charm contribution F_2^{ccbar} to the proton structure function F_2 is determined. The results are compared to perturbative QCD predictions at next-to-leading order implementing different schemes for the charm mass treatment and with Monte Carlo models based on leading order matrix elements with parton showers., 44 pages, 18 figures, new version including erratum
Published: 2011

46. Search for Lepton Flavour Violation at HERA

Author: J-P. Meyer, Z. Staykova, Leif J. Jönsson, Claus Kleinwort, H. Henschel, Maxime Gouzevitch, F. Huber, J. V. Morris, U. Straumann, Jenny List, J. E. Olsson, Hans-Christian Schultz-Coulon, Daniel Pitzl, A. Bunyatyan, Marina Rotaru, S. Shushkevich, Sakar Osman, A. Eliseev, Dusan Bruncko, Tomas Hreus, J. Cvach, Hannes Jung, Alexander Zhokin, Katerina Lipka, W. Bartel, Malte Hildebrandt, P. E. Reimer, K. Nowak, M. Kapichine, H. U. Martyn, Matthias Klein, Laurent Schoeffel, K. Urban, Murrough Landon, Gerhard Brandt, J. Bracinik, T. Greenshaw, J. Ferencei, E. Wuensch, Jan Kretzschmar, B. Delcourt, S. Baghdasaryan, V. Cerny, Benno List, Natasa Raicevic, Vincent Boudry, A. N. Morozov, Karel Cerny, Xavier Janssen, C. Niebuhr, E. Malinovski, R. Placakyte, Emmanuel Sauvan, C. Pascaud, Tomas Sykora, K. Mueller, Roman Kogler, T. Ravdandorj, I. R. Kenyon, S. Egli, M. Brinkmann, J. Feltesse, C. Vallée, A. Lebedev, P. Van Mechelen, P. Truoel, Paul Richard Newman, B. R. Grell, Grzegorz Nowak, A. Glazov, G. Grindhammer, D. Haidt, Y. Soloviev, D.K. Nikitin, E. Moreau, R. Robmann, A. Dossanov, P. Kostka, Anastasia Grebenyuk, Ilias Panagoulias, E. Zomer, Eram Rizvi, E. Eisen, J. Zacek, V. Andreev, S. Levonian, Cristinel Diaconu, A. Petrukhin, J. Zálešák, M. Fleischer, V. Spaskov, Stephen Maxfield, S. Habib, V. Lendermann, Zhiqing Zhang, Wolfgang Lange, Voica Radescu, Laurent Favart, K. Daum, J. Turnau, Pavel A. Belov, K. Begzsuren, Christian Helebrant, Dirk L. Hoffmann, J. C. Bizot, Bogdan Povh, Christoph Grab, J. Gayler, A. B. Meyer, M. Kraemer, Richard Polifka, M. Mudrinic, Gabriel Stoicea, Andrew Mehta, N. Gogitidze, M. Herbst, Calin Alexa, V. Dodonov, H. Pirumov, D. Traynor, I. Tsakov, Pierre Marage, R. Laycock, V. Chekelian, F. D. Aaron, M. Sauter, T. Kluge, David M. South, S. Ghazaryan, G. Laštovička-Medin, Ricardo Lopez-Fernandez, Roland Horisberger, V. Lubimov, A. Baghdasaryan, A. Valkárová, M. Steder, K. H. Hiller, R. C. W. Henderson, A. Rostovtsev, I. Picuric, L. Bystritskaya, T. J. Sloan, A.S. Belousov, Dave Sankey, Guenter Eckerlin, A. Dubak, H. Zohrabyan, E. Sefkow, Th D. Papadopoulou, Sergey Rusakov, G. Herrera, Daniel Britzger, E. Hennekemper, J. Delvax, L. N. Shtarkov, V. Brisson, A. Schoening, M. von den Driesch, G. D. Patel, Federico Alberto Ceccopieri, Ivan Smiljanic, D. Salek, S. Backovic, P. Sopicki, A. M. Fomenko, I. Bozovic-Jelisavcic, D. Wegener, A. Makankine, E. Barrelet, G. Buschhorn, D. Ozerov, D. J. Fischer, T. H. Tran, A. Specka, Mila Pandurovic, J. G. Contreras, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, S. Mikocki, H. J. Meyer, M. Jacquet, I. Milcewicz-Mika, Emmanuelle Perez, S. M. Piec, J. B. Dainton, T. Toll, K. Krueger, John A Coughlan, B. Stella, Stefan Schmitt, M. Dobre, Vladimir Palichik, B. Tseepeldorj, A. Fedotov, K. B. Cantun Avila, B. Pokorny, C. Kiesling, A. J. Campbell, Th. Naumann, L. Goerlich, P. Pahl, E. Gabathuler, R. Felst, Y. Vazdik, P.D. Thompson, 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 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 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), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, H1, 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)-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H1 Collaboration, and H1 Collaboration (ukupan broj autora: 207)
Subjects: Nuclear and High Energy Physics, Particle physics, Flavour, Scalar (mathematics), FOS: Physical sciences, Lambda, 01 natural sciences, High Energy Physics - Experiment, Electron-proton scattering, Nuclear physics, High Energy Physics - Experiment (hep-ex), Leptoquarks, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Leptoquark, ddc:530, 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, Third generation, Full data, Lepton flavor violation, High Energy Physics::Experiment, Lepton
Abstract: A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy sqrt{s} = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb^-1 of e^+ p and 166 pb^-1 of e^- p collision data. No evidence for the production of such leptoquarks is observed in the H1 data. Leptoquarks produced in e^+- p collisions with a coupling strength of lambda=0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95% confidence level up to leptoquark masses of 712 GeV and 479 GeV, respectively., 22 pages, 3 figures, 4 tables
Published: 2011

47. Search for Contact Interactions in $e^{\pm}p$ Collisions at HERA

Author: K. H. Hiller, R. C. W. Henderson, Leif J. Jönsson, D. Wegener, T. H. Tran, B. Pokorny, K. Daum, A. Specka, M. Kapichine, C. Pascaud, C. Vallée, S. Mikocki, A. Lebedev, I. Milcewicz-Mika, J-P. Meyer, Maxime Gouzevitch, D. Haidt, M. Kraemer, A. Zhokin, A. Makankine, G. Buschhorn, P. E. Reimer, E. Wuensch, Claus Kleinwort, Eram Rizvi, F. Moreau, Stephen Maxfield, D. J. Fischer, V. Dodonov, U. Straumann, L. Goerlich, Peter Robmann, Richard Polifka, J. E. Olsson, W. Bartel, Laurent Schoeffel, Mila Pandurovic, S. Habib, Andrew Mehta, N. Gogitidze, H. J. Meyer, Malte Hildebrandt, Fabian Zomer, I. R. Kenyon, K. Urban, Murrough Landon, M. Jacquet, Natasa Raicevic, J. V. Morris, David South, Anastasia Grebenyuk, V. Chekelian, F. D. Aaron, Tomas Sykora, E. Barrelet, E. E. Elsen, Jenny List, Hannes Jung, K. Krueger, P. Van Mechelen, A. Bunyatyan, H. Zohrabyan, A. Rostovtsev, Marina Rotaru, J. B. Dainton, D.K. Nikitin, J. Zacek, Vincent Boudry, A. N. Morozov, R. Placakyte, A. Dubak, Daniel Britzger, E. Hennekemper, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, B. Tseepeldorj, J. Feltesse, S. Backovic, Tim Greenshaw, Vladimir Andreev, H. U. Martyn, Matthias Klein, Calin Alexa, P. Sopicki, Karel Cerny, G. Herrera, M. Herbst, Emmanuelle Perez, Ilias Panagoulias, Zhen Zhang, L. N. Shtarkov, Dusan Bruncko, Z. Staykova, A. M. Fomenko, Ricardo Lopez-Fernandez, Roman Kogler, P. Kostka, J. Delvax, G. Laštovička-Medin, D. Traynor, A. Baghdasaryan, D. P. C. Sankey, V. Cerny, A. Glazov, Benno List, S. Ghazaryan, John A Coughlan, D. Ozerov, G. D. Patel, H. Henschel, V. Lubimov, M. Steder, S. M. Piec, J. Turnau, I. Bozovic-Jelisavcic, M. Sauter, A. Schoening, Federico Alberto Ceccopieri, R. Felst, J. Ferencei, H-C. Schultz-Coulon, M. Brinkmann, B. Stella, Stefan Schmitt, M. Dobre, T. Ravdandorj, K. Begzsuren, S. Baghdasaryan, M. Mudrinic, C. Niebuhr, S. Egli, B. R. Grell, Laurent Favart, Paul Richard Newman, A. Fedotov, Vladimir Palichik, Grzegorz Nowak, I. Tsakov, Y. Soloviev, A. Dossanov, V. Lendermann, T. Kluge, Wolfgang Lange, Ivan Smiljanic, D. Salek, J. Gayler, T. J. Sloan, A.S. Belousov, Th D. Papadopoulou, Sergey Rusakov, A. Petrukhin, S. Shushkevich, H. Pirumov, J. G. Contreras, J. Zálešák, V. Spaskov, Voica Radescu, A. Eliseev, Christoph Grab, A. B. Meyer, I. Picuric, L. Bystritskaya, Pavel A. Belov, V. Brisson, Guenter Eckerlin, J. Bracinik, Gabriel Stoicea, J. Cvach, Roland Horisberger, A. Valkárová, K. Nowak, Christian Helebrant, M. Fleischer, Dirk L. Hoffmann, J. C. Bizot, Bogdan Povh, F. Sefkow, F. Huber, Tomas Hreus, K. Mueller, P. Truoel, S. Levonian, Gerhard Brandt, Xavier Janssen, Katerina Lipka, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, Th. Naumann, P. Pahl, E. Gabathuler, Y. Vazdik, P.D. Thompson, Pierre Marage, K. B. Cantun Avila, C. Kiesling, A. J. Campbell, Cristinel Diaconu, Daniel Pitzl, Jan Kretzschmar, B. Delcourt, 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 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 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 Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Physics beyond the Standard Model, High Energy Physics::Phenomenology, FOS: Physical sciences, HERA, Lambda, Deep inelastic scattering, 01 natural sciences, Standard Model, 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], Large extra dimension, Leptoquark, ddc:530, High Energy Physics::Experiment, 010306 general physics
Abstract: A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q^2 is performed in e^{\pm}p collisions at HERA. The differential cross section ds/dQ^2, measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb^{-1}, is compared to the Standard Model prediction. No significant deviation is observed. Limits on various models predicting new phenomena at high Q^2 are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale Lambda are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses M_{LQ} and couplings lambda are constrained to M_{LQ}/lambda > 0.41-1.86 TeV and limits on squarks in R-parity violating supersymmetric models are derived. A lower limit on the gravitational scale in (4+n) dimensions of M_{S} > 0.9 TeV is established for low-scale quantum gravity effects in models with large extra dimensions. For the light quark radius an upper bound of R_q< 0.65 10^{-18} m is determined., 20 pages, 6 figures and 5 tables
Published: 2011

48. Measurement of the inclusive e±p scattering cross section at high inelasticity y and of the structure function FL

Author: Roland Horisberger, A. Valkárová, M. Kraemer, B. R. Grell, Richard Polifka, Judith Katzy, S. Habib, Krzysztof Kutak, Laurent Schoeffel, K. H. Hiller, R. C. W. Henderson, B. Pokorny, A. Specka, V. Chekelian, F. D. Aaron, K. Urban, Murrough Landon, A. Vargas, P. D. Thompson, Katerina Lipka, F. Moreau, A. Makankine, G. Buschhorn, H. J. Meyer, S. Baghdasaryan, D. Ozerov, J. Delvax, D. J. Fischer, David South, P. Truoel, Paul Laycock, Pavel A. Belov, E. Barrelet, Fabian Zomer, L. Goerlich, M. von den Driesch, G. D. Patel, Juraj Bracinik, T. J. Sloan, A.S. Belousov, Th D. Papadopoulou, Sergey Rusakov, E. Malinovski, Emmanuel Sauvan, P. Van Mechelen, G. Grindhammer, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Gabriel Stoicea, A. Baghdasaryan, A. Rostovtsev, M. Jacquet, E. E. Elsen, P. E. Reimer, E. Wuensch, D. P. C. Sankey, Stephen Maxfield, Ivan Smiljanic, D. Salek, D. Wegener, K. Krueger, John A Coughlan, J. E. Olsson, W. Bartel, V. Lubimov, V. Cerny, Benno List, P. Kostka, M. Fleischer, Emmanuelle Perez, Peter Robmann, J. Zálešák, Christian Helebrant, Malte Hildebrandt, A. Cholewa, I. Bozovic-Jelisavcic, J. Turnau, T. H. Tran, B. Stella, Stefan Schmitt, M. Dobre, M. Brinkmann, Dirk L. Hoffmann, J. C. Bizot, K. Daum, V. Spaskov, F. Huber, R. Felst, G. Laštovička-Medin, S. Levonian, S. M. Piec, J. B. Dainton, A. Dubak, Andrew Mehta, Anastasia Grebenyuk, A. Nikiforov, I. R. Kenyon, K. Begzsuren, A. B. Meyer, Cristinel Diaconu, Grzegorz Nowak, Natasa Raicevic, N. Gogitidze, J. Feltesse, A. Dossanov, M. Mudrinic, C. Niebuhr, Hannes Jung, Federico Alberto Ceccopieri, I. Tsakov, Tomas Hreus, Ilias Panagoulias, Alexander Zhokin, S. Egli, Vincent Boudry, J. G. Contreras, Vladimir Palichik, J. V. Morris, Ringaile Placakyte, Jenny List, L. N. Shtarkov, Pierre Marage, Mila Pandurovic, K. Mueller, N. Loktionova, A. Petrukhin, M. Herbst, D. Traynor, S. Backovic, Y. Soloviev, Gerhard Brandt, A. N. Morozov, S. Mikocki, A. Bunyatyan, D.K. Nikitin, O. Behrend, L. Bystritskaya, S. Shushkevich, M. Sauter, Sakar Osman, Dusan Bruncko, B. Tseepeldorj, Bogdan Povh, H. Zohrabyan, Marina Rotaru, A. Knutsson, Vladimir Andreev, H. U. Martyn, Matthias Klein, A. Eliseev, T. Toll, F. Sefkow, Karel Cerny, A. W. Jung, J. Zacek, Xavier Janssen, Wolfgang Lange, Voica Radescu, Alexander Bylinkin, Leif J. Jönsson, T. Greenshaw, V. Lendermann, Zhen Zhang, Ricardo Lopez-Fernandez, J. Gayler, G. Herrera, Christoph Grab, Andre Schoening, Z. Staykova, Tomas Sykora, Y. Vazdik, A. Glazov, J-P. Meyer, C. Pascaud, Calin Alexa, Paul Newman, C. Vallée, A. Lebedev, H. Pirumov, P. Sopicki, M. Steder, J. Ferencei, R. Kogler, Claus Kleinwort, H. Henschel, D. Haidt, I. Milcewicz-Mika, A. M. Fomenko, Maxime Gouzevitch, V. Brisson, J. Cvach, U. Straumann, S. Ghazaryan, Eram Rizvi, T. Ravdandorj, Th. Naumann, I. Tsurin, M. Kapichine, V. Dodonov, Daniel Britzger, E. Hennekemper, K. Nowak, H-C. Schultz-Coulon, Daniel Pitzl, P. Pahl, E. Gabathuler, T. Kluge, Jan Kretzschmar, I. Picuric, B. Delcourt, Guenter Eckerlin, Matthias Ulrich Mozer, A. Fedotov, K. B. Cantun Avila, C. Kiesling, A. J. Campbell, Laurent Favart, 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 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 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), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, H1, 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), 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), H1 Collaboration, and H1 Collaboration (ukupan broj autora: 219)
Subjects: Physics, Quantum chromodynamics, Scattering cross-section, Particle physics, Physics and Astronomy (miscellaneous), Proton, Neutral current, 010308 nuclear & particles physics, Structure function, FOS: Physical sciences, HERA, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Physique des particules élémentaires, Range (statistics), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Beam (structure)
Abstract: A measurement is presented of the inclusive neutral current e±p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with proton beam energies Ep of 920, 575, and 460 GeV. The kinematic range of the measurement covers low absolute four-momentum transfers squared, 1.5GeV2 < Q2 < 120 GeV2, small values of Bjorken x, 2.9 10-5 < x < 0.01, and extends to high inelasticity up to y = 0.85. The structure function FL is measured by combining the new results with previously published H1 data at Ep = 920 GeV and Ep = 820 GeV. The new measurements are used to test several phenomenological and QCD models applicable in this low Q2 and low x kinematic domain. © The Author(s) 2011., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2011
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49. Search for Single Top Quark Production at HERA

Author: Dusan Bruncko, T. Greenshaw, J. Ferencei, T. Ravdandorj, Claus Kleinwort, M. Kraemer, Richard Polifka, V. Chekelian, F. D. Aaron, R. Zus, J. Zálešák, V. Spaskov, B. R. Grell, A. B. Meyer, Roland Horisberger, A. Valkárová, V. Lubimov, F. Tomasz, Judith Katzy, G. Leibenguth, P. E. Reimer, K. Krastev, C. Niebuhr, L. N. Shtarkov, A. Makankine, G. Buschhorn, D. Ozerov, Gabriel Stoicea, J. E. Olsson, D. J. Fischer, W. Bartel, E. Wuensch, Malte Hildebrandt, S. Egli, F. Moreau, I. R. Kenyon, Y. Soloviev, Pavel Murin, Natasa Raicevic, Vincent Boudry, P. Truoel, G. Laštovička-Medin, A. Nikiforov, S. Vinokurova, A. N. Morozov, Laurent Favart, A. Knutsson, P. Kostka, Voica Radescu, R. Placakyte, Christoph Grab, Mila Pandurovic, Ll. Marti, I. Bozovic-Jelisavcic, C. Wissing, M. Herbst, J. Turnau, S. Habib, M. Deak, Ricardo Lopez-Fernandez, Krzysztof Kutak, M. Steder, D. Hoffmann, David M. South, K. Begzsuren, H. U. Martyn, A. Schoening, G. Thompson, A. Falkiewicz, M. Mudrinic, A. Baghdasaryan, A. Dubak, Z. Staykova, A. Rostovtsev, N. Loktionova, T. Kluge, Stephen Maxfield, I. Picuric, C. Pascaud, I. Tsakov, A. D.R. Vargas Trevino, Andrew Mehta, H. Henschel, J.C. Bizot, M. E. Janssen, Y. Vazdik, S. Shushkevich, N. Gogitidze, Zhiqing Zhang, Guenter Eckerlin, T. Preda, K. H. Hiller, R. C. W. Henderson, Laurent Schoeffel, M. Kapichine, M. Nozicka, J. Zacek, K. Mueller, R. Kogler, P.D. Thompson, K. Lipka, Sakar Osman, O. Pejchal, A. W. Jung, A. Eliseev, B. Delcourt, K. Urban, Murrough Landon, D. Wegener, Wolfgang Lange, M. Del Degan, J. Feltesse, G. Herrera, Calin Alexa, Ilias Panagoulias, P. Sopicki, Matthias Ulrich Mozer, J. Gayler, A. Fedotov, L. Goerlich, A. M. Fomenko, Max Klein, Ivan Smiljanic, D. Salek, S. Ghazaryan, J. Bracinik, Fabian Zomer, K. B. Cantun Avila, C. Kiesling, Leif J. Jönsson, Benoit Roland, J. Cvach, A. De Roeck, A. J. Campbell, J. G. Contreras, G. Cozzika, V. Efremenko, Anna Kropivnitskaya, R. Felst, T. J. Sloan, A.S. Belousov, K. Nowak, M. Fleischer, Peter Robmann, P. Van Mechelen, Th D. Papadopoulou, Sergey Rusakov, E. E. Elsen, S. Mikocki, Bogdan Povh, F. Sefkow, T. Zimmermann, K. Daum, C. Schmitz, Hannes Jung, Alexander Zhokin, C. Vallée, Th. Naumann, Emmanuelle Perez, S. Backovic, E. Gabathuler, S. M. Piec, B. Tseepeldorj, Zuzana Rurikova, S. Levonian, Gang Li, V. Cerny, Benno List, E. Hennekemper, I. Milcewicz-Mika, M. Brinkmann, B. Pokorny, Gerhard Brandt, V. Volchinski, V. Lendermann, H. Meyer, Xavier Janssen, T. N. Trinh, J-P. Meyer, L. Bystritskaya, Maxime Gouzevitch, H. Zohrabyan, V. Michels, A. Lebedev, D. Haidt, J. B. Dainton, Eram Rizvi, V. Dodonov, J. V. Morris, Jenny List, A.J. Rahmat, A. Bunyatyan, Marina Rotaru, V. Tchoulakov, R.N. Shaw-West, Dave Sankey, J. Delvax, M. von den Driesch, G. D. Patel, Biljana Antunović, T. Sykora, A. Raspiareza, M. Sauter, Hans-Christian Schultz-Coulon, Tomas Hreus, V. Andreev, Christian Helebrant, B. Olivier, U. Straumann, B. Stella, Stefan Schmitt, Vladimir Palichik, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, T. H. Tran, T. Toll, Karel Cerny, John A Coughlan, Pierre Marage, I. Glushkov, D. Sunar, A. Cholewa, A. Glazov, L. Lytkin, Cristinel Diaconu, Daniel Pitzl, D. Traynor, A. Asmone, F. Cassol-Brunner, Jan Kretzschmar, K. Krueger, Andrej Liptaj, M. Jacquet, K. Alimujiang, A. Specka, Paul Richard Newman, Grzegorz Nowak, A. Dossanov, A. Petrukhin, M. Aldaya Martin, V. Brisson, E. Barrelet, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Y. de Boer, 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 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 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), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, H1, 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)-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H1 Collaboration, and (ukupan broj autora: 249)
Subjects: Physics, Quark, Nuclear and High Energy Physics, Top quark, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, FOS: Physical sciences, HERA, Omega baryon, 01 natural sciences, Bottom quark, High Energy Physics - Experiment, Sigma baryon, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], B meson, High Energy Physics::Experiment, 010306 general physics
Abstract: A search for single top quark production is performed in the full ep data sample collected by the H1 experiment at HERA, corresponding to an integrated luminosity of 474 pb^-1. Decays of top quarks into a b quark and a W boson with subsequent leptonic or hadronic decay of the W are investigated. A multivariate analysis is performed to discriminate top quark production from Standard Model background processes. An upper limit on the top quark production cross section via flavour changing neutral current processes sigma (ep -> etX) < 0.25 pb is established at 95% CL. Limits on the anomalous coupling kappa_{tu gamma} are derived., Revised version with small text changes. 22 pages, 6 figures
Published: 2009

50. Evidence for a multiquark state in annihilation at rest

Author: E. Klempt, S. Ahmad, C. Amsler, E.G. Auld, D.A. Axen, D. Bailey, S. Barlag, G. Beer, J.C. Bizot, M. Botlo, J.M. Butler, M. Comyn, W. Dahme, B. Delcourt, M. Doser, K.D. Duch, K.L. Erdman, F. Feld-Dahme, U. Gastaldi, M. Heel, B. Howard, R. Howard, J. Jeanjean, H. Kalinowsky, F. Kayser, C. Laa, R. Landua, G.M. Marshall, B. May, H. Nguyen, J. Riedlberger, L.P. Robertson, C. Sabev, U. Schaefer, O. Schreiber, U. Straumann, P. Truoel, H. Vonach, P. Weidenauer, B.L. White, W.R. Wodrich, and M. Ziegler
Subjects: Rest (physics), Physics, Nuclear and High Energy Physics, Annihilation, Hydrogen, Meson, Isoscalar, Nuclear Theory, chemistry.chemical_element, State (functional analysis), Resonance (particle physics), Nuclear physics, chemistry, Physics::Accelerator Physics, Physics::Atomic Physics, Tensor, Atomic physics, Nuclear Experiment
Abstract: We have observed an isoscalar tensor meson at a mass of 1565 ± 10 MeV/c2 and a width of 170 ± 20 MeV/c2. The resonance is seen in pp annihilation at rest into π+π−π0 from P states of antiprotonic hydrogen atoms.
Published: 1990

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