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1. Measurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons

Author: T. Greenshaw, T. Ravdandorj, T. Ullrich, V. Spaskov, K. Daum, Richard Polifka, A. Baghdasaryan, B. A. Schmookler, Katerina Lipka, A. Rostovtsev, S. Park, Emmanuelle Perez, Tomas Sykora, M. Sauter, Cristinel Diaconu, P. Sopicki, Peter Robmann, H. J. Meyer, David South, Steffen Schmitt, B. Stella, D. P. C. Sankey, C. Niebuhr, Daniel Pitzl, Th. Naumann, S. Egli, Paul Thompson, J. E. Olsson, R. Roosen, Y. Soloviev, Dirk Krücker, S. Shushkevich, V. Chekelian, Austin Baty, A. V. Fedotov, A. B. Meyer, Voica Radescu, B. Lobodzinski, Natasa Raicevic, J. Feltesse, Christoph Grab, M. Fleischer, D. Ozerov, J. Zhang, Arthur Eugen Bolz, D. Traynor, Vincent Boudry, A. N. Morozov, Jan Kretzschmar, Grzegorz Nowak, P. Kostka, L. Bystritskaya, P. Van Mechelen, S. Levonian, K. Müller, A. Petrukhin, C. Gal, Laurent Schoeffel, B. Tseepeldorj, R. C. W. Henderson, Andreas Werner Jung, D. Wegener, Daniel Andreas Britzger, Jean-Arcady Meyer, Judith Katzy, A.S. Belousov, M. Steder, K. Begzsuren, R. Žlebčík, P. Truöl, A. Specka, H. Zohrabyan, Z. P. Zhang, Maxime Gouzevitch, J. Žáček, F. Sefkow, F. Huber, P. E. Reimer, M. M. Mondal, Ankita Mehta, Roland Horisberger, A. Valkárová, A. Buniatyan, J. Cvach, Wolfgang Lange, Gerhard Brandt, A. M. Fomenko, J. Gayler, Tomas Hreus, Benno List, Xavier Janssen, S. Mikocki, Stephen Maxfield, Wei Li, Fabian Zomer, Katja Krüger, C. Kiesling, V. Andreev, N. Gogitidze, A. J. Campbell, J. B. Dainton, Matthieu Klein, J. G. Contreras, Dirk L. Hoffmann, I. Picuric, Guenter Eckerlin, André Schöning, J. Hladkỳ, L. Goerlich, A. Deshpande, E. Elsen, A. Grebenyuk, Karel Cerny, Laurent Favart, M. Jacquet, Roman Kogler, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, M. P. J. Landon, Paul Newman, Hannes Jung, Claus Kleinwort, C. Vallée, U. Straumann, H. U. Martyn, M. Kapichine, Z. Tu, K. B. C. Avila, C. Pascaud, A. Lebedev, D. Haidt, Jenny List, Marina Rotaru, E. Wünsch, Z. Chen, E. Rizvi, G. D. Patel, and H1 Collaboration
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Monte Carlo method, Hadron, Multiplicity (mathematics), Parton, HERA, Deep inelastic scattering, 01 natural sciences, Charged particle, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy $$\sqrt{s}=319$$ s = 319 GeV are measured. The data are collected with the H1 detector at HERA corresponding to an integrated luminosity of 136 pb$$^{-1}$$ - 1 . Charged particle multiplicities are measured as a function of photon virtuality $$Q^2$$ Q 2 , inelasticity y and pseudorapidity $$\eta $$ η in the laboratory and the hadronic centre-of-mass frames. Predictions from different Monte Carlo models are compared to the data. The first and second moments of the multiplicity distributions are determined and the KNO scaling behaviour is investigated. The multiplicity distributions as a function of $$Q^2$$ Q 2 and the Bjorken variable $$x_{\mathrm{bj}}$$ x bj are converted to the hadron entropy $$S_{\mathrm{hadron}}$$ S hadron , and predictions from a quantum entanglement model are tested.
Published: 2021

2. Measurement of exclusive $${\varvec{{{{\pi ^+\pi ^-}}}}}$$ and $${\varvec{{{{\rho ^0}}}}}$$ meson photoproduction at HERA

Author: J. Žáček, Austin Baty, F. Huber, Steffen Schmitt, A. B. Meyer, M. Fleischer, D. Traynor, Daniel Andreas Britzger, Tomas Hreus, F. Sefkow, Maxime Gouzevitch, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, K. Müller, C. Niebuhr, A.S. Belousov, P. Truöl, S. Shushkevich, Stephen Maxfield, S. Egli, J. E. Olsson, Gerhard Brandt, Y. Soloviev, K. Daum, N. Gogitidze, P. Van Mechelen, A. M. Fomenko, Xavier Janssen, A. Petrukhin, R. C. W. Henderson, R. Roosen, Voica Radescu, Christoph Grab, Karel Cerny, M. Jacquet, Richard Polifka, E. Elsen, A. Grebenyuk, Roman Kogler, A. Buniatyan, Natasa Raicevic, Andreas Werner Jung, I. Picuric, Guenter Eckerlin, J. Feltesse, André Schöning, S. Park, L. Goerlich, Vincent Boudry, Emmanuelle Perez, Wei Li, V. Andreev, P. Sopicki, Arthur Eugen Bolz, M. P. J. Landon, Grzegorz Nowak, A. Deshpande, Jenny List, A. V. Fedotov, J. Cvach, K. B. Cantun Avila, S. Levonian, A. N. Morozov, Ankita Mehta, J. B. Dainton, A. Baghdasaryan, A. Rostovtsev, Judith Katzy, C. Kiesling, A. Specka, P. Kostka, B. A. Schmookler, Marina Rotaru, A. J. Campbell, Dirk L. Hoffmann, L. Bystritskaya, J. Hladkỳ, M. Kapichine, David South, H. Zohrabyan, Paul Newman, Th. Naumann, E. Wünsch, B. Stella, Claus Kleinwort, Cristinel Diaconu, H. U. Martyn, Matthias Klein, K. Begzsuren, M. Steder, Laurent Favart, Daniel Pitzl, Z. Chen, U. Straumann, P. D. Thompson, Benno List, E. Rizvi, G. D. Patel, V. Spaskov, Katja Krüger, C. Pascaud, J. Zhang, M. M. Mondal, C. Vallée, A. Lebedev, C. Gal, Laurent Schoeffel, Z. Tu, B. Tseepeldorj, Jan Kretzschmar, D. Haidt, Katerina Lipka, D. P. C. Sankey, R. Žlebčík, T. Greenshaw, Roland Horisberger, V. Chekelian, A. Valkárová, Fabian Zomer, T. Ravdandorj, B. Lobodzinski, H. J. Meyer, J. G. Contreras, Tomas Sykora, M. Sauter, Hannes Jung, D. Ozerov, Dirk Krücker, D. Wegener, P. E. Reimer, Jean-Arcady Meyer, Z. P. Zhang, S. Mikocki, Peter Robmann, Wolfgang Lange, and J. Gayler
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Scattering, Hadron, HERA, 01 natural sciences, Vertex (geometry), Pion, 0103 physical sciences, Pi, Invariant mass, 010306 general physics, Engineering (miscellaneous)
Abstract: Exclusive photoproduction of $${{\rho ^0}} (770)$$ ρ 0 ( 770 ) mesons is studied using the H1 detector at the ep collider HERA. A sample of about 900,000 events is used to measure single- and double-differential cross sections for the reaction $$\gamma p \rightarrow \pi ^{+}\pi ^{-}Y$$ γ p → π + π - Y . Reactions where the proton stays intact ($${{{m_Y}} {=}m_p}$$ m Y = m p ) are statistically separated from those where the proton dissociates to a low-mass hadronic system ($$m_p{ m p < m Y < 10 GeV ). The double-differential cross sections are measured as a function of the invariant mass $$m_{\pi \pi }$$ m π π of the decay pions and the squared 4-momentum transfer t at the proton vertex. The measurements are presented in various bins of the photon–proton collision energy $${{W_{\gamma p}}} $$ W γ p . The phase space restrictions are $$0.5\le m_{\pi \pi } \le 2.2~{{\text {GeV}}} $$ 0.5 ≤ m π π ≤ 2.2 GeV , $$\vert t\vert \le 1.5~{{\text {GeV}^2}} $$ | t | ≤ 1.5 GeV 2 , and $$20 \le W_{\gamma p} \le 80~{{\text {GeV}}} $$ 20 ≤ W γ p ≤ 80 GeV . Cross section measurements are presented for both elastic and proton-dissociative scattering. The observed cross section dependencies are described by analytic functions. Parametrising the $${m_{\pi \pi }}$$ m π π dependence with resonant and non-resonant contributions added at the amplitude level leads to a measurement of the $${{\rho ^0}} (770)$$ ρ 0 ( 770 ) meson mass and width at $$m_\rho = 770.8{}^{+2.6}_{-2.7}~({\text {tot.}})~{{\text {MeV}}} $$ m ρ = 770.8 - 2.7 + 2.6 ( tot. ) MeV and $$\Gamma _\rho = 151.3 {}^{+2.7}_{-3.6}~({\text {tot.}})~{{\text {MeV}}} $$ Γ ρ = 151.3 - 3.6 + 2.7 ( tot. ) MeV , respectively. The model is used to extract the $${{\rho ^0}} (770)$$ ρ 0 ( 770 ) contribution to the $$\pi ^{+}\pi ^{-}$$ π + π - cross sections and measure it as a function of t and $${W_{\gamma p}}$$ W γ p . In a Regge asymptotic limit in which one Regge trajectory $$\alpha (t)$$ α ( t ) dominates, the intercept $$\alpha (t{=}0) = 1.0654\ {}^{+0.0098}_{-0.0067}~({\text {tot.}})$$ α ( t = 0 ) = 1.0654 - 0.0067 + 0.0098 ( tot. ) and the slope $$\alpha ^\prime (t{=}0) = 0.233 {}^{+0.067 }_{-0.074 }~({\text {tot.}}) ~{{\text {GeV}^{-2}}} $$ α ′ ( t = 0 ) = 0.233 - 0.074 + 0.067 ( tot. ) GeV - 2 of the t dependence are extracted for the case $$m_Y{=}m_p$$ m Y = m p .
Published: 2020

3. The DAQ system of the 12,000 Channel CMS High Granularity Calorimeter Prototype

Author: B. Acar, G. Adamov, C. Adloff, S. Afanasiev, N. Akchurin, B. Akgün, M. Alhusseini, J. Alison, G. Altopp, M. Alyari, S. An, S. Anagul, I. Andreev, M. Andrews, P. Aspell, I.A. Atakisi, O. Bach, A. Baden, G. Bakas, A. Bakshi, S. Banerjee, P. Bargassa, D. Barney, E. Becheva, P. Behera, A. Belloni, T. Bergauer, M. Besancon, S. Bhattacharya, D. Bhowmik, P. Bloch, A. Bodek, G. Bombardi, M. Bonanomi, A. Bonnemaison, S. Bonomally, J. Borg, F. Bouyjou, D. Braga, J. Brashear, E. Brondolin, P. Bryant, J. Bueghly, B. Bilki, B. Burkle, A. Butler-Nalin, S. Callier, D. Calvet, X. Cao, B. Caraway, S. Caregari, L. Ceard, Y.C. Cekmecelioglu, S. Cerci, G. Cerminara, N. Charitonidis, R. Chatterjee, Y.M. Chen, Z. Chen, K.y. Cheng, S. Chernichenko, H. Cheung, C.H. Chien, S. Choudhury, D. Čoko, G. Collura, F. Couderc, L. Cristella, I. Dumanoglu, D. Dannheim, P. Dauncey, A. David, G. Davies, E. Day, P. DeBarbaro, F. De Guio, C. de La Taille, M. De Silva, P. Debbins, E. Delagnes, J.M. Deltoro, G. Derylo, P.G. Dias de Almeida, D. Diaz, P. Dinaucourt, J. Dittmann, M. Dragicevic, S. Dugad, V. Dutta, S. Dutta, J. Eckdahl, T.K. Edberg, M. El Berni, S.C. Eno, Yu. Ershov, P. Everaerts, S. Extier, F. Fahim, C. Fallon, S. Fiorendi, B.A. Fontana Santos Alves, E. Frahm, G. Franzoni, J. Freeman, T. French, Y. Guler, E. Gurpinar Guler, M. Gagnan, P. Gandhi, S. Ganjour, A. Garcia-Bellido, Z. Gecse, Y. Geerebaert, H. Gerwig, O. Gevin, A. Gilbert, W. Gilbert, K. Gill, C. Gingu, S. Gninenko, A. Golunov, I. Golutvin, T. Gonzalez, N. Gorbounov, L. Gouskos, Y. Gu, F. Guilloux, E. Gülmez, E. Hamamci, M. Hammer, A. Harilal, K. Hatakeyama, A. Heering, V. Hegde, U. Heintz, V. Hinger, N. Hinton, J. Hirschauer, J. Hoff, W.S. Hou, C. Isik, J. Incandela, A. Irshad, S. Jain, H.R. Jheng, U. Joshi, O. Kara, V. Kachanov, A. Kalinin, R. Kameshwar, A. Kaminskiy, H. Kanso, A. Karneyeu, O. Kaya, M. Kaya, A. Khukhunaishvili, J. Kieseler, S. Kim, K. Koetz, T. Kolberg, A. Kristić, M. Krohn, K. Krüger, N. Kulagin, S. Kulis, S. Kunori, C.M. Kuo, V. Kuryatkov, S. Kyre, O.K. Köseyan, Y. Lai, K. Lamichhane, G. Landsberg, C. Lange, J. Langford, M.Y. Lee, E. Leogrande, A. Levin, J.H. Li, A. Li, B. Li, H. Liao, D. Lincoln, L. Linssen, R. Lipton, Y. Liu, A. Lobanov, K. Long, R.S. Lu, I. Lysova, A.M. Magnan, F. Magniette, A.A. Maier, A. Malakhov, I. Mandjavize, M. Mannelli, J. Mans, A. Marchioro, A. Martelli, P. Masterson, B. Meng, T. Mengke, E. Meschi, A. Mestvirishvili, I. Mirza, S. Moccia, I. Morrissey, T. Mudholkar, J. Musić, Y. Musienko, S. Nabili, A. Nagar, A. Nikitenko, D. Noonan, M. Noy, K. Nurdan, C. Ochando, B. Odegard, N. Odell, Y. Onel, W. Ortez, J. Ozegović, S. Ozkorucuklu, L. Pacheco-Rodriguez, E. Paganis, D. Pagenkopf, V. Palladino, S. Pandey, F. Pantaleo, C. Papageorgakis, I. Papakrivopoulos, J. Parshook, N. Pastika, M. Paulini, P. Paulitsch, T. Peltola, R. Pereira Gomes, H. Perkins, P. Petiot, M. Pierini, F. Pitters, H. Prosper, M. Prvan, I. Puljak, S.R. Qasim, H. Qu, T. Quast, R. Quinn, M. Quinnan, K. Rapacz, L. Raux, G. Reichenbach, M. Reinecke, M. Revering, M. Rieger, A. Rodriguez, T. Romanteau, A. Rose, M. Rovere, A. Roy, P. Rubinov, R. Rusack, A.E. Simsek, U. Sozbilir, O.M. Sahin, A. Sanchez, R. Saradhy, T. Sarkar, M.A. Sarkisla, J.B. Sauvan, I. Schmidt, M. Schmitt, E. Scott, C. Seez, F. Sefkow, M. Selvaggi, S. Sharma, I. Shein, A. Shenai, R. Shukla, E. Sicking, P. Sieberer, Y. Sirois, V. Smirnov, E. Spencer, A. Steen, J. Strait, T. Strebler, N. Strobbe, J.W. Su, E. Sukhov, M. Sun, L. Sun, D. Sunar Cerci, A. Surkov, C. Syal, B. Tali, U.G. Tok, A. Kayis Topaksu, C.L. Tan, I. Tastan, T. Tatli, R. Thaus, S. Tekten, D. Thienpont, T. Pierre-Emile, E. Tiras, M. Titov, D. Tlisov, J. Troska, Z. Tsamalaidze, G. Tsipolitis, A. Tsirou, N. Tyurin, S. Undleeb, D. Urbanski, V. Ustinov, A. Uzunian, G.P. Van Onsem, M. van de Klundert, J. Varela, M. Velasco, T. Vergine, M. Vicente Barreto Pinto, P.M. da Silva, T. Virdee, R. Vizinho de Oliveira, J. Voelker, E. Voirin, Z. Wang, X. Wang, F. Wang, M. Wayne, S.N. Webb, M. Weinberg, A. Whitbeck, D. White, R. Wickwire, J.S. Wilson, D. Winter, H.Y. Wu, L. Wu, C. H Yeh, R. Yohay, D. Yu, S.S. Yu, G.B. Yu, F. Yumiceva, A. Zacharopoulou, N. Zamiatin, A. Zarubin, S. Zenz, J. Zhang, H. Zhang, 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 Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS HGCAL, 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: Physics - Instrumentation and Detectors, data acquisition, Physics::Instrumentation and Detectors, Nuclear engineering, 01 natural sciences, High Energy Physics - Experiment, pi: irradiation, High Energy Physics - Experiment (hep-ex), Data acquisition, Sampling (signal processing), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detectors and Experimental Techniques, Instrumentation, physics.ins-det, Mathematical Physics, irradiation [muon], FPGA, 010302 applied physics, Physics, Large Hadron Collider, Luminosity (scattering theory), CMS, Detector, Instrumentation and Detectors (physics.ins-det), upgrade [calorimeter], Calorimeter, Upgrade, design [electronics], microprocessor, Granularity, calorimeter: upgrade, performance, Particle Physics - Experiment, irradiation [electron], FOS: Physical sciences, 0103 physical sciences, irradiation [pi], electron: irradiation, Calorimeters, Data acquisition concepts, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], activity report, 010308 nuclear & particles physics, hep-ex, muon: irradiation, electronics: readout, semiconductor detector, Physics::Accelerator Physics, High Energy Physics::Experiment, readout [electronics], electronics: design
Abstract: Journal of Instrumentation 16(04), T04001 (2021). doi:10.1088/1748-0221/16/04/T04001, The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC) [1]. Concomitant with this increase will be an increase in the number of interactions in each bunch crossing and a significant increase in the total ionising dose and fluence. One part of this upgrade is the replacement of the current endcap calorimeters with a high granularity sampling calorimeter equipped with silicon sensors, designed to manage the high collision rates [2]. As part of the development of this calorimeter, a series of beam tests have been conducted with different sampling configurations using prototype segmented silicon detectors. In the most recent of these tests, conducted in late 2018 at the CERN SPS, the performance of a prototype calorimeter equipped with ��12,000 channels of silicon sensors was studied with beams of high-energy electrons, pions and muons. This paper describes the custom-built scalable data acquisition system that was built with readily available FPGA mezzanines and low-cost Raspberry Pi computers., Published by Inst. of Physics, London
Published: 2020
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4. Construction and commissioning of CMS CE prototype silicon modules

Author: B. Acar, G. Adamov, C. Adloff, S. Afanasiev, N. Akchurin, B. Akgün, M. Alhusseini, J. Alison, G. Altopp, M. Alyari, S. An, S. Anagul, I. Andreev, M. Andrews, P. Aspell, I.A. Atakisi, O. Bach, A. Baden, G. Bakas, A. Bakshi, S. Banerjee, P. Bargassa, D. Barney, E. Becheva, P. Behera, A. Belloni, T. Bergauer, M. Besancon, S. Bhattacharya, D. Bhowmik, P. Bloch, A. Bodek, G. Bombardi, M. Bonanomi, A. Bonnemaison, S. Bonomally, J. Borg, F. Bouyjou, D. Braga, J. Brashear, E. Brondolin, P. Bryant, J. Bueghly, B. Bilki, B. Burkle, A. Butler-Nalin, S. Callier, D. Calvet, X. Cao, B. Caraway, S. Caregari, L. Ceard, Y.C. Cekmecelioglu, S. Cerci, G. Cerminara, N. Charitonidis, R. Chatterjee, Y.M. Chen, Z. Chen, K.y. Cheng, S. Chernichenko, H. Cheung, C.H. Chien, S. Choudhury, D. Čoko, G. Collura, F. Couderc, L. Cristella, I. Dumanoglu, D. Dannheim, P. Dauncey, A. David, G. Davies, E. Day, P. DeBarbaro, F. De Guio, C. de La Taille, M. De Silva, P. Debbins, E. Delagnes, J.M. Deltoro, G. Derylo, P.G. Dias de Almeida, D. Diaz, P. Dinaucourt, J. Dittmann, M. Dragicevic, S. Dugad, V. Dutta, S. Dutta, J. Eckdahl, T.K. Edberg, M. El Berni, S.C. Eno, Yu. Ershov, P. Everaerts, S. Extier, F. Fahim, C. Fallon, S. Fiorendi, B.A. Fontana Santos Alves, E. Frahm, G. Franzoni, J. Freeman, T. French, Y. Guler, E. Gurpinar Guler, M. Gagnan, P. Gandhi, S. Ganjour, A. Garcia-Bellido, Z. Gecse, Y. Geerebaert, H. Gerwig, O. Gevin, A. Gilbert, W. Gilbert, K. Gill, C. Gingu, S. Gninenko, A. Golunov, I. Golutvin, T. Gonzalez, N. Gorbounov, L. Gouskos, Y. Gu, F. Guilloux, E. Gülmez, E. Hamamci, M. Hammer, A. Harilal, K. Hatakeyama, A. Heering, V. Hegde, U. Heintz, V. Hinger, N. Hinton, J. Hirschauer, J. Hoff, W.S. Hou, C. Isik, J. Incandela, A. Irshad, S. Jain, H.R. Jheng, U. Joshi, O. Kara, V. Kachanov, A. Kalinin, R. Kameshwar, A. Kaminskiy, H. Kanso, A. Karneyeu, O. Kaya, M. Kaya, A. Khukhunaishvili, J. Kieseler, S. Kim, K. Koetz, T. Kolberg, A. Kristić, M. Krohn, K. Krüger, N. Kulagin, S. Kulis, S. Kunori, C.M. Kuo, V. Kuryatkov, S. Kyre, O.K. Köseyan, Y. Lai, K. Lamichhane, G. Landsberg, C. Lange, J. Langford, M.Y. Lee, E. Leogrande, A. Levin, J.H. Li, A. Li, B. Li, H. Liao, D. Lincoln, L. Linssen, R. Lipton, Y. Liu, A. Lobanov, K. Long, R.S. Lu, I. Lysova, A.M. Magnan, F. Magniette, A.A. Maier, A. Malakhov, I. Mandjavize, M. Mannelli, J. Mans, A. Marchioro, A. Martelli, P. Masterson, B. Meng, T. Mengke, E. Meschi, A. Mestvirishvili, I. Mirza, S. Moccia, I. Morrissey, T. Mudholkar, J. Musić, Y. Musienko, S. Nabili, A. Nagar, A. Nikitenko, D. Noonan, M. Noy, K. Nurdan, C. Ochando, B. Odegard, N. Odell, Y. Onel, W. Ortez, J. Ozegović, S. Ozkorucuklu, L. Pacheco-Rodriguez, E. Paganis, D. Pagenkopf, V. Palladino, S. Pandey, F. Pantaleo, C. Papageorgakis, I. Papakrivopoulos, J. Parshook, N. Pastika, M. Paulini, P. Paulitsch, T. Peltola, R. Pereira Gomes, H. Perkins, P. Petiot, M. Pierini, F. Pitters, H. Prosper, M. Prvan, I. Puljak, S.R. Qasim, H. Qu, T. Quast, R. Quinn, M. Quinnan, K. Rapacz, L. Raux, G. Reichenbach, M. Reinecke, M. Revering, M. Rieger, A. Rodriguez, T. Romanteau, A. Rose, M. Rovere, A. Roy, P. Rubinov, R. Rusack, A.E. Simsek, U. Sozbilir, O.M. Sahin, A. Sanchez, R. Saradhy, T. Sarkar, M.A. Sarkisla, J.B. Sauvan, I. Schmidt, M. Schmitt, E. Scott, C. Seez, F. Sefkow, M. Selvaggi, S. Sharma, I. Shein, A. Shenai, R. Shukla, E. Sicking, P. Sieberer, Y. Sirois, V. Smirnov, E. Spencer, A. Steen, J. Strait, T. Strebler, N. Strobbe, J.W. Su, E. Sukhov, M. Sun, L. Sun, D. Sunar Cerci, A. Surkov, C. Syal, B. Tali, U.G. Tok, A. Kayis Topaksu, C.L. Tan, I. Tastan, T. Tatli, R. Thaus, S. Tekten, D. Thienpont, T. Pierre-Emile, E. Tiras, M. Titov, D. Tlisov, J. Troska, Z. Tsamalaidze, G. Tsipolitis, A. Tsirou, N. Tyurin, S. Undleeb, D. Urbanski, V. Ustinov, A. Uzunian, G.P. Van Onsem, M. van de Klundert, J. Varela, M. Velasco, T. Vergine, M. Vicente Barreto Pinto, P.M. da Silva, T. Virdee, R. Vizinho de Oliveira, J. Voelker, E. Voirin, Z. Wang, X. Wang, F. Wang, M. Wayne, S.N. Webb, M. Weinberg, A. Whitbeck, D. White, R. Wickwire, J.S. Wilson, D. Winter, H.Y. Wu, L. Wu, C. H Yeh, R. Yohay, D. Yu, S.S. Yu, G.B. Yu, F. Yumiceva, A. Zacharopoulou, N. Zamiatin, A. Zarubin, S. Zenz, J. Zhang, H. Zhang, 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 Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS HGCAL, 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: Physics - Instrumentation and Detectors, Computer science, Physics::Instrumentation and Detectors, 01 natural sciences, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Application-specific integrated circuit, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detectors and Experimental Techniques, Instrumentation, physics.ins-det, Mathematical Physics, Large Hadron Collider, irradiation, CMS, Instrumentation and Detectors (physics.ins-det), upgrade [calorimeter], Si microstrip and pad detectors, Calorimeter, Upgrade, upgrade, calorimeter: upgrade, Computer hardware, Particle Physics - Experiment, performance, Silicon, chemistry.chemical_element, FOS: Physical sciences, fabrication, design [calorimeter], 03 medical and health sciences, Calorimeters, 0103 physical sciences, Calibration, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], activity report, 010308 nuclear & particles physics, business.industry, hep-ex, Large detector systems for particle and astroparticle physics, calorimeter: design, silicon, DESY, integrated circuit: readout, calibration, chemistry, readout [integrated circuit], Performance of High Energy Physics Detectors, Physics::Accelerator Physics, High Energy Physics::Experiment, business, Beam (structure)
Abstract: Journal of Instrumentation 16(04), T04002 (2021). doi:10.1088/1748-0221/16/04/T04002, As part of its HL-LHC upgrade program, the CMS collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling calorimeter with unprecedented transverse and longitudinal readout for both electromagnetic (CE-E) and hadronic (CE-H) compartments. The calorimeter will be built with ��30,000 hexagonal silicon modules. Prototype modules have been constructed with 6-inch hexagonal silicon sensors with cell areas of 1.1 cm2, and the SKIROC2-CMS readout ASIC. Beam tests of different sampling configurations were conducted with the prototype modules at DESY and CERN in 2017 and 2018. This paper describes the construction and commissioning of the CE calorimeter prototype, the silicon modules used in the construction, their basic performance, and the methods used for their calibration., Published by Inst. of Physics, London
Published: 2020
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5. Construction and response of a highly granular scintillator-based electromagnetic calorimeter

Author: J. Repond, L. Xia, G. Eigen, T. Price, N.K. Watson, A. Winter, M.A. Thomson, C. Cârloganu, G.C. Blazey, A. Dyshkant, K. Francis, V. Zutshi, K. Gadow, P. Göttlicher, O. Hartbrich, K. Kotera, F. Krivan, K. Krüger, S. Lu, B. Lutz, M. Reinecke, F. Sefkow, Y. Sudo, H.L. Tran, A. Kaplan, H.-Ch. Schultz-Coulon, B. Bilki, D. Northacker, Y. Onel, G.W. Wilson, K. Kawagoe, I. Sekiya, T. Suehara, H. Yamashiro, T. Yoshioka, E. Calvo Alamillo, M.C. Fouz, J. Marin, J. Navarrete, J. Puerta Pelayo, A. Verdugo, M. Chadeeva, M. Danilov, M. Gabriel, P. Goecke, C. Graf, Y. Israeli, N. van der Kolk, F. Simon, M. Szalay, H. Windel, S. Bilokin, J. Bonis, R. Pöschl, A. Thiebault, F. Richard, D. Zerwas, V. Balagura, V. Boudry, J.-C. Brient, R. Cornat, J. Cvach, M. Janata, M. Kovalcuk, J. Kvasnicka, I. Polak, J. Smolik, V. Vrba, J. Zalesak, J. Zuklin, W. Choi, M. Nishiyama, T. Sakuma, T. Takeshita, S. Tozuka, T. Tsubokawa, S. Uozumi, D. Jeans, W. Ootani, L. Liu, S. Chang, A. Khan, D.H. Kim, D.J. Kong, Y.D. Oh, T. Ikuno, Y. Takahashi, M. Götze, Laboratoire de Physique de Clermont (LPC), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), CALICE, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont ( LPC ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Clermont Auvergne ( UCA ) -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 ), 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: Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, SiPM, energy resolution, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Electron, STRIPS, Scintillator, Particle flow, 01 natural sciences, 030218 nuclear medicine & medical imaging, law.invention, Nuclear physics, 03 medical and health sciences, 0302 clinical medicine, Silicon photomultiplier, Electromagnetic calorimeter, law, 0103 physical sciences, electron: irradiation, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Fermilab, Detectors and Experimental Techniques, Nuclear Experiment, Collider, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], physics.ins-det, Instrumentation, scintillation counter, Physics, 010308 nuclear & particles physics, CALICE, calorimeter: design, MPPC, Instrumentation and Detectors (physics.ins-det), Transverse plane, calorimeter: electromagnetic, Scintillation counter, High Energy Physics::Experiment, Granular
Abstract: Nuclear instruments & methods in physics research / A 887, 150 - 168 (2018). doi:10.1016/j.nima.2018.01.016, A highly granular electromagnetic calorimeter with scintillator strip readout is being developed for future linear collider experiments. A prototype of 21.5 $X_0$depth and $180 \times 180$ $mm^2$ transverse dimensions was constructed, consisting of 2160 individually read out $10\times 45\times 3$ $mm^3$ scintillator strips. This prototype was tested using electrons of 2–32 $Ge V$ at the Fermilab Test Beam Facility in 2009. Deviations from linear energy response were less than 1.1%, and the intrinsic energy resolution was determined to be $(12.5\pm 0.1(stat.)\pm 0.4(syst.))\%$ $/$ $\sqrt{E[Ge V]}\oplus \left( 1.2\pm 0.1(stat.)_{-0.7}^{+0.6}(syst.)\right)\%$, where the uncertainties correspond to statistical and systematic sources, respectively., Published by North-Holland Publ. Co., Amsterdam
Published: 2018
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6. A novel Silicon Photomultiplier with bulk integrated quench resistors: utilization in optical detection and tracking applications for particle physics

Author: Jelena Ninkovic, Ladislav Andricek, F. Sefkow, Christian Jendrysik, Katja Krueger, Raik Lehmann, Gerhard Schaller, Karsten Hansen, Christian Reckleben, I. Diehl, Stefan Petrovics, Rainer Richter, and Florian Schopper
Subjects: Physics, Quenching, Nuclear and High Energy Physics, Photomultiplier, Particle physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Detector, Tracking (particle physics), 01 natural sciences, law.invention, Silicon photomultiplier, law, 0103 physical sciences, Geiger counter, Optoelectronics, Resistor, 010306 general physics, business, Instrumentation, Diode
Abstract: Silicon Photomultipliers (SiPMs) are a promising candidate for replacing conventional photomultiplier tubes (PMTs) in many applications, thanks to ongoing developments and advances in their technology. Conventional SiPMs are generally an array of avalanche photo diodes, operated in Geiger mode and read out in parallel, thus leading to the necessity of a high ohmic quenching resistor. This resistor enables passive quenching and is usually located on top of the array, limiting the fill factor of the device. In this paper, a novel detector concept with a bulk integrated quenching resistor will be recapped. In addition, due to other advantages of this novel detector design, a new concept, in which these devices will be utilized as tracking detectors for particle physics applications will be introduced, as well as first simulation studies and experimental measurements of this new approach.
Published: 2017

7. EUDAQ2—A flexible data acquisition software framework for common test beams

Author: Mengqing Wu, J. Kvasnicka, Marcel Michael Stanitzki, Hendrik Jansen, Y. Liu, Matthew Wing, F. Sefkow, Elvira Rossi, Ingrid-Maria Gregor, K. Krueger, M.S. Amjad, P. Baesso, Jan Dreyling-Eschweiler, R. Peschke, R. Ete, Andre Rummler, David Cussans, L. Huth, A. Irles, 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), and 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)
Subjects: Physics - Instrumentation and Detectors, Data acquisition system for beam tests [5], Computer science, Physics::Instrumentation and Detectors, FOS: Physical sciences, 01 natural sciences, programming, High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Software, Data acquisition, 0103 physical sciences, calorimeter, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], tracking detector, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, physics.ins-det, Instrumentation, Mathematical Physics, activity report, Flexibility (engineering), Data processing, hep-ex, 010308 nuclear & particles physics, business.industry, Event (computing), Tracking, Detector, Ranging, Instrumentation and Detectors (physics.ins-det), Pixel detector, Upgrade, Data Acquisition, High Energy Physics::Experiment, upgrade, Test beam, business, Particle Physics - Experiment, Computer hardware
Abstract: Journal of Instrumentation 14(10), P10033 - P10033 (2019). doi:10.1088/1748-0221/14/10/P10033, The data acquisition software framework, EUDAQ, was originally developed to readout data from the EUDET-type pixel telescopes. This was successfully used in many test beamcampaigns in which an external position and time referencewere required. The software has recentlyundergone a significant upgrade, EUDAQ2, which is a generic, modern and modular system foruse by many different detector types, ranging from tracking detectors to calorimeters. EUDAQ2is suited as an overarching software that links individual detector readout systems and simplifiesthe integration of multiple detectors. The framework itself supports several triggering and eventbuilding modes. This flexibility makes test beams with multiple detectors significantly easier andmore efficient, as EUDAQ2 can adapt to the characteristics of each detector prototype during testing.The system has been thoroughly tested during multiple test beams involving different detectorprototypes. EUDAQ2 has now been released and is freely available under an open-source license., Published by Inst. of Physics, London
Published: 2019

8. Readout of digital SiPMs

Author: Christian Reckleben, Karsten Hansen, Rainer Richter, Ladislav Andricek, F. Sefkow, Yuan Yao, I. Diehl, Jelena Ninkovic, Stefan Petrovics, and Katja Krüger
Subjects: Pixel, 010308 nuclear & particles physics, business.industry, Computer science, 010401 analytical chemistry, Detector, Electrical engineering, Chip, 01 natural sciences, 0104 chemical sciences, Silicon photomultiplier, Application-specific integrated circuit, 0103 physical sciences, Hardware_INTEGRATEDCIRCUITS, Electronics, Serializer, business, Electronic circuit
Abstract: This work describes a detector system using digital silicon photomultipliers in a hybrid approach. It allows for the individual readout of each pixel by utilizing an active quenching and recharging circuit. Each pixel electronic occupies the same area as the sensor pixel, limiting the space of the electronics to 50 × 50 µm². 16-by-16 pixels with wired-OR trigger network, 12-bit time-to-digital converter, validation logic, controller and serializer form a macro pixel. The first detector prototype consists of a sensor chip from MPG-HLL, Munich, and a readout ASIC, developed by DESY, Hamburg, with dimension of a macro pixel including peripheral electronics and test circuits. The ASIC is designed and fabricated in GF’s 130-nm CMOS process and has a size of 1.9 × 2.1 mm². First measurements of the prototype were performed at room temperature. Dark events could be detected, counted and the corresponding time stamps could be read out. Dark-count rate as function of the bias voltage, TDC characteristics, data transmission limits, power consumption and space requirements are presented.
Published: 2018

9. Determination of electroweak parameters in polarised deep-inelastic scattering at HERA

Author: Paul Laycock, J. B. Dainton, Max Klein, D. Traynor, E. Malinovski, Emmanuel Sauvan, P. E. Reimer, G. Grindhammer, Z. P. Zhang, Murrough Landon, Roland Horisberger, A. Baghdasaryan, A. Rostovtsev, A. Valkárová, P. Van Mechelen, C. Niebuhr, S. Egli, Y. Soloviev, P. D. Thompson, K. Daum, D. Wegener, H. J. Meyer, A. B. Meyer, A. V. Fedotov, Voica Radescu, Christoph Grab, A.S. Belousov, M. Fleischer, R. Žlebčík, P. Truöl, K. Begzsuren, R. C. W. Henderson, Andreas Werner Jung, Judith Katzy, Wolfgang Lange, I. Tsakov, Katerina Lipka, A. Specka, F. Sefkow, D. Salek, J. Gayler, P. Kostka, J. G. Contreras, Grzegorz Nowak, B. Stella, L. Bystritskaya, Laurent Schoeffel, B. Tseepeldorj, S. Mikocki, J. Hladkỳ, Alexander Bylinkin, E. Wünsch, D. P. C. Sankey, S. Levonian, Laurent Favart, M. Jacquet, Tomas Sykora, M. Sauter, H. Zohrabyan, J-P. Meyer, E. Elsen, A. Grebenyuk, Arthur Eugen Bolz, I. Picuric, Guenter Eckerlin, Daniel Andreas Britzger, André Schöning, L. Goerlich, V. Chekelian, Emmanuelle Perez, Peter Robmann, V. Brisson, H. U. Martyn, S. Shushkevich, Dirk Krücker, Maxime Gouzevitch, G. D. Patel, B. Lobodzinski, R. Roosen, A. M. Fomenko, Monica Dobre, V. Andreev, P. Sopicki, A. Buniatyan, K. B. Cantun Avila, C. Kiesling, Gerhard Brandt, A. J. Campbell, C. Pascaud, Benno List, A. Lebedev, Th. Naumann, Katja Krüger, D. Ozerov, Karel Cerny, Dirk L. Hoffmann, Xavier Janssen, D. Haidt, Roman Kogler, A. Petrukhin, Paul Newman, Eram Rizvi, Y. Vazdik, Claus Kleinwort, Hubert Spiesberger, U. Straumann, David South, J. Žáček, F. Huber, Tomas Hreus, Jenny List, Marina Rotaru, Steffen Schmitt, K. Müller, Stephen Maxfield, Andrew Mehta, N. Gogitidze, J. Cvach, Fabian Zomer, Hannes Jung, C. Vallée, M. Kapichine, J. E. Olsson, Natasa Raicevic, J. Feltesse, Vincent Boudry, T. Greenshaw, Cristinel Diaconu, A. N. Morozov, T. Ravdandorj, V. Spaskov, M. Steder, Richard Polifka, Daniel Pitzl, and Jan Kretzschmar
Subjects: Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Electroweak interaction, HERA, Deep inelastic scattering, 01 natural sciences, Standard Model, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Charged current, Lepton
Abstract: The parameters of the electroweak theory are determined in a combined electroweak and QCD analysis using all deep-inelastic $e^+p$ and $e^-p$ neutral current and charged current scattering cross sections published by the H1 Collaboration, including data with longitudinally polarised lepton beams. Various fits to Standard Model parameters in the on-shell scheme are performed. The mass of the W boson is determined as $m_W=80.520\pm 0.115~\mathrm {GeV} $ . The axial-vector and vector couplings of the light quarks to the Z boson are also determined. Both results improve the precision of previous H1 determinations based on HERA-I data by about a factor of two. Possible scale dependence of the weak coupling parameters in both neutral and charged current interactions beyond the Standard Model is also studied. All results are found to be consistent with the Standard Model expectations.
Published: 2018

10. Hadronic Energy Resolution of a Combined High Granularity Scintillator Calorimeter System

Author: Djamel Eddine Boumediene, T. Tubokawa, P. Buhmann, C. Neubüser, H. Videau, M. Rubio-Roy, E. Brianne, I. Sekiya, M. Danilov, F. Krivan, M. Götze, E. Calvo Alamillo, Kiyotomo Kawagoe, K. Francis, N. van der Kolk, T. Sakuma, H. Yamashiro, C. Graf, P. Göttlicher, A. Drutskoy, Alberto Ribon, S. Bilokin, Taikan Suehara, Shih-Fu Chang, Huong Lan Tran, Tamaki Yoshioka, V. Balagura, G. C. Blazey, M. Kovalcuk, J-C. Brient, D. H. Kim, K. Kotera, A. Provenza, Matthew Wing, M. Janata, V. Ivantchenko, B. Li, Lei Xia, O. Hartbrich, Frank Simon, M. Nishiyama, D. Yu, C. Zeitnitz, Gunter Folger, Roman Pöschl, J. J. Navarrete, John Apostolakis, Frédéric Magniette, Marina Chadeeva, M. Frotin, A. Verdugo, J. Nanni, M. Matysek, J. Smolik, M. Anduze, S. Schuwalow, H. Ch Schultz-Coulon, D. Lomidze, A. Kaplan, Y. D. Oh, K. Gadow, R. Cornat, E. Popova, Vladimir Rusinov, Graham Wilson, E. Tarkovsky, J. C. Marin, V. Zutshi, I. Polak, J. Zuklin, K. Kruger, J. Kvasnicka, M. Reinecke, V. Uzhinskiy, T. H. Tran, A.S. Dyshkant, S. Lu, D. Jeans, M. C. Fouz, J. Puerta Pelayo, V. Francais, Abdul Rauf Khan, S. Laurien, S. Uozumi, Vaclav Vrba, A. Elkhalii, K. Shpak, D. J. Kong, J. Bonis, Dirk Zerwas, O. Bach, J. Zálešák, S. Tozuka, E. Becheva, Y. Israeli, Erika Garutti, F. Richard, J. Cvach, E. Edy, A. Irles, F. Sefkow, Yuji Sudo, Jose Repond, L. Emberger, Vincent Boudry, M. Gabriel, H. Windel, Tohru Takeshita, M. Szalay, A. Ebrahimi, F. Gastaldi, A. Thiebault, Laboratoire de Physique de Clermont (LPC), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), CALICE, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-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), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)
Subjects: Photomultiplier, data analysis method, energy resolution: momentum dependence, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Hadron, pi-: energy spectrum, FOS: Physical sciences, Scintillator, 01 natural sciences, programming, 030218 nuclear medicine & medical imaging, Nuclear physics, pi: irradiation, 03 medical and health sciences, 0302 clinical medicine, statistical analysis, calorimeter: hadronic, 0103 physical sciences, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, Nuclear Experiment, physics.ins-det, Instrumentation, Mathematical Physics, scintillation counter, Physics, Muon, Calorimeter (particle physics), 010308 nuclear & particles physics, CALICE, showers: spatial distribution, Instrumentation and Detectors (physics.ins-det), calorimeter: electromagnetic, statistics, Scintillation counter, GEANT, High Energy Physics::Experiment, Granularity, muon: tracking detector, Energy (signal processing)
Abstract: This paper presents results obtained with the combined CALICE Scintillator Electromagnetic Calorimeter, Analogue Hadronic Calorimeter and Tail Catcher & Muon Tracker, three high granularity scintillator-SiPM calorimeter prototypes. The response of the system to pions with momenta between 4 GeV/c and 32 GeV/c is analysed, including the energy response, resolution, and longitudinal shower profiles. The results of a software compensation technique based on weighting according to hit energy are compared to those of a standard linear energy reconstruction. The results are compared to predictions of the GEANT4 physics lists QGSP_BERT_HP and FTFP_BERT_HP., 31 pages, 41 figures
Published: 2018

11. Software compensation in Particle Flow reconstruction

Author: M. A. Thomson, Katja Krüger, F. Sefkow, S. Green, Huong Lan Tran, John Marshall, Frank Simon, Simon, Frank [0000-0002-5978-0289], and Apollo - University of Cambridge Repository
Subjects: Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Computer science, Physics::Instrumentation and Detectors, FOS: Physical sciences, lcsh:Astrophysics, Special Article - Tools for Experiment and Theory, Bioengineering, 01 natural sciences, Compensation (engineering), Computational science, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Software, lcsh:QB460-466, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, Detectors and Experimental Techniques, 010306 general physics, Engineering (miscellaneous), 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Advanced software [3], Computing and Computers, Calorimeter, lcsh:QC770-798, Particle, 7 Affordable and Clean Energy, High Energy Physics::Experiment, 5106 Nuclear and Plasma Physics, Granularity, business, 51 Physical Sciences, Event (particle physics), Energy (signal processing)
Abstract: The European physical journal / C 77(10), 698 (2017). doi:10.1140/epjc/s10052-017-5298-3, The particle flow approach to calorimetry benefits from highly granular calorimeters and sophisticated software algorithms in order to reconstruct and identify individual particles in complex event topologies. The high spatial granularity, together with analogue energy information, can be further exploited in software compensation. In this approach, the local energy density is used to discriminate electromagnetic and purely hadronic sub-showers within hadron showers in the detector to improve the energy resolution for single particles by correcting for the intrinsic non-compensation of the calorimeter system. This improvement in the single particle energy resolution also results in a better overall jet energy resolution by improving the energy measurement of identified neutral hadrons and improvements in the pattern recognition stage by a more accurate matching of calorimeter energies to tracker measurements. This paper describes the software compensation technique and its implementation in particle flow reconstruction with the Pandora Particle Flow Algorithm (PandoraPFA). The impact of software compensation on the choice of optimal transverse granularity for the analogue hadronic calorimeter option of the International Large Detector (ILD) concept is also discussed., Published by Springer, Berlin
Published: 2017
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12. A measurement of the proton structure function F-2(x, Q(2)) at low x and low Q(2) at HERA

Author: C. Adloff, S. Aid, M. Anderson, V. Andreev, B. Andrieu, V. Arkadov, C. Arndt, I. Ayyaz, A. Babaev, J. Bähr, J. Bán, Y. Ban, P. Baranov, E. Barrelet, R. Barschke, W. Bartel, U. Bassler, H.P. Beck, M. Beck, H.-J. Behrend, A. Belousov, Ch. Berger, G. Bernardi, G. Bertrand-Coremans, R. Beyer, P. Biddulph, P. Bispham, J.C. Bizot, K. Borras, F. Botterweck, V. Boudry, S. Bourov, A. Braemer, W. Braunschweig, V. Brisson, W. Brückner, P. Bruel, D. Bruncko, C. Brune, R. Buchholz, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, M.J. Burton, G. Buschhorn, D. Calvet, A.J. Campbell, T. Carli, M. Charlet, D. Clarke, B. Clerbaux, S. Cocks, J.G. Contreras, C. Cormack, J.A. Coughlan, A. Courau, M.-C. Cousinou, B.E. Cox, G. Cozzika, D.G. Cussans, J. Cvach, S. Dagoret, J.B. Dainton, W.D. Dau, K. Daum, M. David, C.L. Davis, A. De Roeck, E.A. De Wolf, B. Delcourt, M. Dirkmann, P. Dixon, W. Dlugosz, C. Dollfus, K.T. Donovan, J.D. Dowell, H.B. Dreis, A. Droutskoi, J. Ebert, T.R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, E. Elsen, M. Erdmann, A.B. Fahr, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, J. Formánek, J.M. Foster, G. Franke, E. Gabathuler, K. Gabathuler, F. Gaede, J. Garvey, J. Gayler, M. Gebauer, H. Genzel, R. Gerhards, A. Glazov, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, K. Golec-Biernat, B. Gonzalez-Pineiro, I. Gorelov, C. Grab, H. Grässler, T. Greenshaw, R.K. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, T. Hadig, D. Haidt, L. Hajduk, T. Haller, M. Hampel, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, H. Henschel, I. Herynek, M.F. Hess, K. Hewitt, K.H. Hiller, C.D. Hilton, J. Hladký, M. Höppner, D. Hoffmann, T. Holtom, R. Horisberger, V.L. Hudgson, M. Hütte, M. Ibbotson, Ç. İşsever, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jacquet, M. Jaffre, J. Janoth, D.M. Jansen, L. Jönsson, D.P. Johnson, H. Jung, P.I.P. Kalmus, M. Kander, D. Kant, U. Kathage, J. Katzy, H.H. Kaufmann, O. Kaufmann, M. Kausch, S. Kazarian, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J.H. Köhne, H. Kolanoski, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, T. Krämerkämper, M.W. Krasny, H. Krehbiel, D. Krücker, A. Küpper, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, B. Laforge, M.P.J. Landon, W. Lange, U. Langenegger, A. Lebedev, F. Lehner, V. Lemaitre, S. Levonian, M. Lindstroem, F. Linsel, J. Lipinski, B. List, G. Lobo, J.W. Lomas, G.C. Lopez, V. Lubimov, D. Lüke, L. Lytkin, N. Magnussen, H. Mahlke-Krüger, E. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, J. Martens, G. Martin, R. Martin, H.-U. Martyn, J. Martyniak, T. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, P. Merkel, F. Metlica, A. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, A. Migliori, S. Mikocki, D. Milstead, J. Moeck, F. Moreau, J.V. Morris, E. Mroczko, D. Müller, T. Walter, K. Müller, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th. Naumann, I. Négri, P.R. Newman, D. Newton, H.K. Nguyen, T.C. Nicholls, F. Niebergall, C. Niebuhr, Ch. Niedzballa, H. Niggli, G. Nowak, T. Nunnemann, M. Nyberg-Werther, H. Oberlack, J.E. Olsson, D. Ozerov, P. Palmen, E. Panaro, A. Panitch, C. Pascaud, S. Passaggio, G.D. Patel, H. Pawletta, E. Peppel, E. Perez, J.P. Phillips, A. Pieuchot, D. Pitzl, R. Pöschl, G. Pope, B. Povh, S. Prell, K. Rabbertz, G. Rädel, P. Reimer, H. Rick, S. Riess, E. Rizvi, P. Robmann, R. Roosen, K. Rosenbauer, A. Rostovtsev, F. Rouse, C. Royon, K. Rüter, S. Rusakov, K. Rybicki, D.P.C. Sankey, P. Schacht, S. Schiek, S. Schleif, P. Schleper, W. von Schlippe, D. Schmidt, G. Schmidt, L. Schoeffel, A. Schöning, V. Schröder, E. Schuhmann, B. Schwab, F. Sefkow, A. Semenov, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I.O. Skillicorn, T. Sloan, P. Smirnov, M. Smith, V. Solochenko, Y. Soloviev, A. Specka, J. Spiekermann, S. Spielman, H. Spitzer, F. Squinabol, P. Steffen, R. Steinberg, J. Steinhart, B. Stella, A. Stellberger, J. Stier, J. Stiewe, U. Stöβlein, K. Stolze, U. Straumann, W. Struczinski, J.P. Sutton, S. Tapprogge, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, J. Theissen, G. Thompson, P.D. Thompson, N. Tobien, R. Todenhagen, P. Truöl, G. Tsipolitis, J. Turnau, E. Tzamariudaki, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Valĺee, P. Van Esch, P. Van Mechelen, D. Vandenplas, Y. Vazdik, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, M. Wagener, R. Wallny, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, L.R. West, S. Wiesand, T. Wilksen, S. Willard, M. Winde, G.-G. Winter, C. Wittek, M. Wobisch, H. Wollatz, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, P. Zini, F. Zomer, J. Zsembery, M. zurNedden, 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), 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), 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, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), 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), Levy, Jean-Michel, and H1 Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Proton, 010308 nuclear & particles physics, Structure function, FOS: Physical sciences, HERA, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Momentum, High Energy Physics - Experiment (hep-ex), Cross section (physics), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics
Abstract: The results of a measurement of the proton structure function F_2(x,Q^2)and the virtual photon-proton cross section are reported for momentum transfers squared Q^2 between 0.35 GeV^2 and 3.5 GeV^2 and for Bjorken-x values down to 6 10^{-6} using data collected by the HERA experiment H1 in 1995. The data represent an increase in kinematic reach to lower x and Q^2 values of about a factor of 5 compared to previous H1 measurements. Including measurements from fixed target experiments the rise of F_2 with decreasing x is found to be less steep for the lowest Q^2 values measured. Phenomenological models at low Q^2 are compared with the data., Comment: 27 pages, 10 Figures
Published: 2016

13. Search for QCD instanton-induced processes at HERA in the high- $$\pmb {Q^2}$$ Q 2 domain

Author: Jenny List, H. U. Martyn, Marina Rotaru, J. Hladkỳ, B. Pokorny, P. Kostka, P. E. Reimer, R. Plačakytė, Laurent Favart, A. M. Fomenko, V. Spaskov, Stephen Maxfield, E. Wünsch, C. Niebuhr, N. Gogitidze, Peter Robmann, S. Ghazaryan, S. Egli, R. C. W. Henderson, Grzegorz Nowak, E. Rizvi, G. D. Patel, J. Turnau, Y. Soloviev, D. Salek, David South, D. P. C. Sankey, K. Begzsuren, B. Stella, C. Pascaud, Stefan Schmitt, C. Vallée, A. Lebedev, A. Grebenyuk, A.S. Belousov, Sergey Rusakov, I. Tsakov, D. Haidt, P. Truöl, Daniel Britzger, J. G. Contreras, M. Jacquet, E. E. Elsen, Wolfgang Lange, J. Gayler, M. P. J. Landon, I. Picuric, Benno List, Katja Krüger, V. Dodonov, Guenter Eckerlin, André Schöning, L. Goerlich, V. Chekelian, D. Wegener, Voica Radescu, Christoph Grab, A. Specka, Paul Newman, Max Klein, D. Traynor, D. Ozerov, M. Kapichine, Emmanuelle Perez, P. Van Mechelen, P. Sopicki, T. Greenshaw, V. Brisson, J. Ferencei, Claus Kleinwort, T. Ravdandorj, R. Žlebčík, Jean-Arcady Meyer, Paul Laycock, S. Shushkevich, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, H. Pirumov, B. Lobodzinski, Z. P. Zhang, A. Baghdasaryan, K. Daum, A. Rostovtsev, A. V. Fedotov, Judith Katzy, U. Straumann, Katerina Lipka, R. Roosen, P. D. Thompson, Fabian Zomer, L. Bystritskaya, Monica Dobre, H. J. Meyer, A. B. Meyer, J. B. Dainton, M. Fleischer, Hannes Jung, Laurent Schoeffel, B. Tseepeldorj, K. Müller, H. Zohrabyan, Richard Polifka, Tomas Sykora, M. Sauter, Karel Cerny, Roman Kogler, S. Mikocki, F. Sefkow, Dirk Krücker, J. Cvach, V. Andreev, Dirk L. Hoffmann, J. Žáček, F. Huber, Tomas Hreus, M. Steder, J. E. Olsson, Natasa Raicevic, J. Feltesse, Vincent Boudry, A. N. Morozov, Roland Horisberger, Maxime Gouzevitch, S. Levonian, Gerhard Brandt, Xavier Janssen, A. Petrukhin, A. Valkárová, A. Buniatyan, Ankita Mehta, K. B. Cantun Avila, C. Kiesling, Alexander Bylinkin, A. J. Campbell, Arthur Eugen Bolz, Cristinel Diaconu, Daniel Pitzl, Jan Kretzschmar, Y. Vazdik, Th. Naumann, and E. Gabathuler
Subjects: Physics, Quantum chromodynamics, Particle physics, Instanton, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Elementary particle, HERA, Inelastic scattering, Deep inelastic scattering, 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: Signals of QCD instanton-induced processes are searched for in neutral current deep-inelastic scattering at the electron-proton collider HERA in the kinematic region defined by the Bjorken-scaling variable $x > 10^{-3}$, the inelasticity $0.2< y < 0.7$ and the photon virtuality $150 < Q^2 < 15000$ GeV$^2$. The search is performed using H1 data corresponding to an integrated luminosity of ~$351$ pb$^{-1}$. No evidence for the production of QCD instanton-induced events is observed. Upper limits on the cross section for instanton-induced processes between $1.5$~pb and $6$~pb, at $95\%$~ confidence level, are obtained depending on the kinematic domain in which instantons could be produced. Compared to earlier publications, the limits are improved by an order of magnitude and for the first time are challenging theory predictions.
Published: 2016

14. Exclusive $$\rho ^0$$ ρ 0 meson photoproduction with a leading neutron at HERA

Author: Paul Newman, T. Greenshaw, Claus Kleinwort, J-P. Meyer, S. Shushkevich, J. Ferencei, T. Ravdandorj, U. Straumann, Daniel Pitzl, A. Buniatyan, Alexander Bylinkin, Peter Robmann, Wolfgang Lange, Maxime Gouzevitch, J. Gayler, Arthur Eugen Bolz, J. Žáček, F. Huber, Jan Kretzschmar, K. B. Cantun Avila, M. Jacquet, E. E. Elsen, Z. P. Zhang, H. U. Martyn, C. Kiesling, Roland Horisberger, A. Valkárová, A. V. Fedotov, Tomas Hreus, P. E. Reimer, A. J. Campbell, J. B. Dainton, M. Kapichine, S. Levonian, Paul Laycock, E. Malinovski, Emmanuel Sauvan, A. B. Meyer, V. Andreev, G. Grindhammer, Jenny List, Marina Rotaru, Tomas Sykora, M. Sauter, Emmanuelle Perez, Cristinel Diaconu, Gerhard Brandt, C. Pascaud, M. Fleischer, C. Vallée, A. Lebedev, D. Haidt, A. Baghdasaryan, A. Rostovtsev, L. Bystritskaya, Dirk L. Hoffmann, Xavier Janssen, P. D. Thompson, J. Hladkỳ, D. Wegener, V. Spaskov, V. Dodonov, Bogdan Povh, F. Sefkow, A. Petrukhin, Murrough Landon, H. Zohrabyan, J. Turnau, Fabian Zomer, E. Wünsch, Dave Sankey, Karel Cerny, R. Plačakytė, K. Begzsuren, E. Rizvi, G. D. Patel, Roman Kogler, C. Niebuhr, H. J. Meyer, A. M. Fomenko, I. Tsakov, S. Egli, A. Grebenyuk, S. Mikocki, Y. Soloviev, Benno List, P. Kostka, R. C. W. Henderson, Hannes Jung, Voica Radescu, Max Klein, Christoph Grab, D. Traynor, Katja Krüger, Daniel Britzger, D. Ozerov, Laurent Favart, P. Van Mechelen, H. Pirumov, A. Specka, I. Picuric, Guenter Eckerlin, K. Daum, André Schöning, L. Goerlich, Katerina Lipka, M. Steder, A.S. Belousov, Sergey Rusakov, P. Truöl, J. E. Olsson, V. Chekelian, B. Lobodzinski, Natasa Raicevic, J. Feltesse, Laurent Schoeffel, B. Tseepeldorj, Richard Polifka, Vincent Boudry, B. Pokorny, A. N. Morozov, David South, R. Žlebčík, D. Salek, J. G. Contreras, B. Stella, Stefan Schmitt, Y. Vazdik, Th. Naumann, E. Gabathuler, K. Müller, Stephen Maxfield, Andrew Mehta, N. Gogitidze, J. Cvach, R. Roosen, Monica Dobre, Grzegorz Nowak, P. Sopicki, V. Brisson, and S. Ghazaryan
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Elementary particle, HERA, 01 natural sciences, 7. Clean energy, Nuclear physics, Baryon, Pion, 0103 physical sciences, High Energy Physics::Experiment, Neutron, Nuclear Experiment, 010306 general physics, Nucleon, Engineering (miscellaneous)
Abstract: A first measurement is presented of exclusive photoproduction of $$\rho ^0$$ mesons associated with leading neutrons at HERA. The data were taken with the H1 detector in the years 2006 and 2007 at a centre-of-mass energy of $$\sqrt{s}=319$$ GeV and correspond to an integrated luminosity of 1.16 pb $$^{-1}$$ . The $$\rho ^0$$ mesons with transverse momenta $$p_T0.35$$ , are detected in the Forward Neutron Calorimeter. The phase space of the measurement is defined by the photon virtuality $$Q^2 < 2$$ GeV $$^2$$ , the total energy of the photon–proton system $$20 < W_{\gamma p}< 100$$ GeV and the polar angle of the leading neutron $$\theta _n < 0.75$$ mrad. The cross section of the reaction $$\gamma p \rightarrow \rho ^0 n \pi ^+$$ is measured as a function of several variables. The data are interpreted in terms of a double peripheral process, involving pion exchange at the proton vertex followed by elastic photoproduction of a $$\rho ^0$$ meson on the virtual pion. In the framework of one-pion-exchange dominance the elastic cross section of photon-pion scattering, $$\sigma ^\mathrm{el}(\gamma \pi ^+ \rightarrow \rho ^0\pi ^+)$$ , is extracted. The value of this cross section indicates significant absorptive corrections for the exclusive reaction $$\gamma p \rightarrow \rho ^0 n \pi ^+$$ .
Published: 2016

15. Measurement of the D∗± meson production cross section and F2cc¯ at high Q2 in ep scattering at HERA

Author: F.D. Aaron, C. Alexa, K. Alimujiang, V. Andreev, B. Antunovic, S. Backovic, A. Baghdasaryan, E. Barrelet, W. Bartel, K. Begzsuren, A. Belousov, J.C. Bizot, V. Boudry, I. Bozovic-Jelisavcic, J. Bracinik, G. Brandt, M. Brinkmann, V. Brisson, D. Bruncko, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A.J. Campbell, K.B. Cantun Avila, K. Cerny, V. Cerny, V. Chekelian, A. Cholewa, J.G. Contreras, J.A. Coughlan, G. Cozzika, J. Cvach, J.B. Dainton, K. Daum, M. Deák, B. Delcourt, J. Delvax, E.A. De Wolf, C. Diaconu, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, A. Eliseev, E. Elsen, A. Falkiewicz, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, D.-J. Fischer, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, I. Glushkov, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, T. Greenshaw, B.R. Grell, G. Grindhammer, S. Habib, D. Haidt, C. Helebrant, R.C.W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, K.H. Hiller, D. Hoffmann, R. Horisberger, T. Hreus, M. Jacquet, X. Janssen, L. Jönsson, A.W. Jung, H. Jung, M. Kapichine, J. Katzy, I.R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, A. Knutsson, R. Kogler, P. Kostka, M. Kraemer, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krüger, K. Kutak, M.P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, V. Lendermann, S. Levonian, G. Li, K. Lipka, A. Liptaj, B. List, J. List, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. Makankine, E. Malinovski, P. Marage, Ll. Marti, H.-U. Martyn, S.J. Maxfield, A. Mehta, A.B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J.V. Morris, M.U. Mozer, M. Mudrinic, K. Müller, P. Murín, Th. Naumann, P.R. Newman, C. Niebuhr, A. Nikiforov, D. Nikitin, G. Nowak, K. Nowak, J.E. Olsson, S. Osman, D. Ozerov, P. Pahl, V. Palichik, I. Panagoulias, M. Pandurovic, Th. Papadopoulou, C. Pascaud, G.D. Patel, O. Pejchal, E. Perez, A. Petrukhin, I. Picuric, S. Piec, D. Pitzl, R. Plačakytė, B. Pokorny, R. Polifka, B. Povh, V. Radescu, A.J. Rahmat, N. Raicevic, A. Raspiareza, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, M. Rotaru, J.E. Ruiz Tabasco, S. Rusakov, D. Šálek, D.P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, H.-C. Schultz-Coulon, F. Sefkow, R.N. Shaw-West, L.N. Shtarkov, S. Shushkevich, T. Sloan, I. Smiljanic, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, G. Stoicea, U. Straumann, D. Sunar, T. Sykora, V. Tchoulakov, G. Thompson, P.D. Thompson, T. Toll, F. Tomasz, T.H. Tran, D. Traynor, T.N. Trinh, P. Truöl, I. Tsakov, B. Tseepeldorj, J. Turnau, K. Urban, A. Valkárová, C. Vallée, P. Van Mechelen, A. Vargas Trevino, Y. Vazdik, S. Vinokurova, V. Volchinski, M. von den Driesch, D. Wegener, Ch. Wissing, E. Wünsch, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, T. Zimmermann, H. Zohrabyan, and F. Zomer
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Proton, Meson, 010308 nuclear & particles physics, Scattering, HERA, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, D meson, High Energy Physics::Experiment, Charm (quantum number), 010306 general physics
Abstract: The inclusive production of D*(+/-)(2010) mesons in deep-inelastic e(+/-)p scattering is measured in the kinematic region of photon virtuality 100 1 5 GeV The data were collected by the H1 experiment during the period from 2004 to 2007 and correspond to an integrated luminosity of 351 pb(-1) The charm contribution. F-2(c (c) over bar), to the proton structure function F-2 is determined. The measurements are compared with QCD predictions. (C) 2010 Elsevier B V All rights reserved
Published: 2010

16. Deeply virtual Compton scattering and its beam charge asymmetry in e±p collisions at HERA

Author: K. H. Hiller, R. C. W. Henderson, Pavel Murin, Judith Katzy, Calin Alexa, V. Tchoulakov, R.N. Shaw-West, T. Toll, A. D.R. Vargas Trevino, Laurent Favart, S. Habib, S. Ghazaryan, B. Olivier, R. Kogler, E. E. Elsen, Ivan Smiljanic, Emmanuelle Perez, Stephen Maxfield, S. M. Piec, I. R. Kenyon, H. U. Martyn, J-P. Meyer, K. Lipka, T. N. Trinh, R. Zus, J. G. Contreras, Paul Laycock, E. Malinovski, Emmanuel Sauvan, C. Wissing, Ilias Panagoulias, G. Grindhammer, K. Krüger, B. R. Grell, B. Pokorny, J. Žáček, D. Wegener, A. Raspiareza, M. Sauter, Andrew Mehta, N. Gogitidze, A. Specka, M. Kapichine, M. Nozicka, B. Delcourt, Max Klein, B. Stella, Stefan Schmitt, U. Straumann, V. Lubimov, P. E. Reimer, Th. Naumann, F. Tomasz, A. W. Jung, A. Dubak, Fabian Zomer, K. Urban, David M. South, V. Efremenko, P. Sopicki, Tomas Hreus, G. Leibenguth, A. M. Fomenko, Maxime Gouzevitch, A. Knutsson, J. Zálešák, V. Lendermann, V. Spaskov, G. Herrera, S. Shushkevich, Murrough Landon, Sakar Osman, Vladimir Palichik, Paul Richard Newman, Grzegorz Nowak, Mila Pandurovic, A. Falkiewicz, G. Cozzika, N. Loktionova, S. Mikocki, A. Eliseev, A. Nikiforov, L. N. Shtarkov, K. Alimujiang, Hannes Jung, Alexander Zhokin, O. Pejchal, E. Gabathuler, A. Dossanov, R. Pla akyt, T. J. Sloan, V. Andreev, A.S. Belousov, A. Petrukhin, A. Baghdasaryan, A. Rostovtsev, Ll. Marti, I. Bozovic-Jelisavcic, J. Cvach, Th D. Papadopoulou, Sergey Rusakov, P. Truöl, Pierre Marage, C. Vallée, M. Herbst, M. Deak, V. Cerny, G. Thompson, K. Nowak, P. Van Mechelen, K. Krastev, T.H. Tran, Benno List, John A Coughlan, J. Bracinik, H-C. Schultz-Coulon, G. La tovi ka-Medin, E. Wünsch, T. Kluge, Z. Staykova, M. E. Janssen, A. B. Meyer, Christian Helebrant, A. Makankine, G. Buschhorn, Gabriel Stoicea, D. Ozerov, Wolfgang Lange, Gerhard Brandt, K. Daum, J. Gayler, Karel Cerny, V. Michels, V. Volchinski, D.K. Nikitin, Dirk L. Hoffmann, J. B. Dainton, Leif J. Jönsson, Roland Horisberger, D. J. Fischer, A. Valkárová, Krzysztof Kutak, Y. Vazdik, P.D. Thompson, H. Henschel, J.C. Bizot, A. Glazov, M. Brinkmann, C. Niebuhr, Benoit Roland, S. Egli, J. Delvax, M. Aldaya Martin, V. Brisson, K. Müller, Xavier Janssen, I. Picuric, Zhen Zhang, I. Glushkov, Guenter Eckerlin, André Schöning, Peter Robmann, Ricardo Lopez-Fernandez, Matthias Ulrich Mozer, Y. Soloviev, Dusan Bruncko, A. Fedotov, K. B. Cantun Avila, C. Kiesling, T. Zimmermann, E. Barrelet, F. Moreau, Gang Li, M. Steder, T. Greenshaw, A. J. Campbell, E. Hennekemper, M. von den Driesch, G. D. Patel, M. Jacquet, S. Backovic, J. E. Ruiz Tabasco, E. A. De Wolf, Voica Radescu, Zuzana Rurikova, Christoph Grab, R. Roosen, H. Meyer, Biljana Antunović, S. Levonian, D. álek, Y. de Boer, S. Vinokurova, J. Ferencei, I. Milcewicz-Mika, L. Bystritskaya, J. E. Olsson, W. Bartel, Malte Hildebrandt, P. Kostka, T. Sykora, T. Ravdandorj, Claus Kleinwort, M. Kraemer, J. Turnau, H. Zohrabyan, K. Begzsuren, Richard Polifka, Natasa Raicevic, M. Mudrinic, I. Tsakov, V. Chekelian, F. D. Aaron, J. Feltesse, J. V. Morris, Jenny List, Vincent Boudry, A. N. Morozov, M. Fleischer, A.J. Rahmat, A. Bunyatyan, Marina Rotaru, D. Sunar, C. Pascaud, A. Cholewa, Bogdan Povh, F. Sefkow, A. Lebedev, Cristinel Diaconu, Daniel Pitzl, D. Traynor, D. Haidt, Jan Kretzschmar, Andrej Liptaj, Eram Rizvi, V. Dodonov, Laurent Schoeffel, B. Tseepeldorj, D. P. C. Sankey, Anna Kropivnitskaya, R. Felst, M. Del Degan, and L. Goerlich
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, media_common.quotation_subject, Momentum transfer, Compton scattering, Parton, HERA, 01 natural sciences, Asymmetry, Nuclear physics, Dipole, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, P system, media_common
Abstract: A measurement of elastic deeply virtual Compton scattering gamma*p --> gamma p using e(+) p and e(-) p collision data recorded with the HI detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 306 pb(-1), almost equally shared between both beam charges. The cross section is measured as a function of the virtuality Q(2) of the exchanged photon and the centre-of-mass energy W of the gamma*p system in the kinematic domain 6.5 < Q(2) < 80 GeV2, 30 < W < 140 GeV and |t| < 1 GeV2, where t denotes the squared momentum transfer at the proton vertex. The cross section is determined differentially in t for different Q(2) and W values and exponential t-slope parameters are derived. Using e(+) p and e(-) p data samples, a beam charge asymmetry is extracted for the first time in the low Biorken x kinematic domain. The observed asymmetry is attributed to the interference between Bethe-Heitler and deeply virtual Compton scattering processes. Experimental results are discussed in the context of two different models, one based on generalised parton distributions and one based on the dipole approach. (C) 2009 Elsevier B.V. All rights reserved.
Published: 2009

17. Inclusive photoproduction of ρ0, K∗0 and ϕ mesons at HERA

Author: J. V. Morris, Jenny List, A.J. Rahmat, A. Bunyatyan, Marina Rotaru, Katerina Lipka, V. Tchoulakov, G. Laštovička-Medin, R.N. Shaw-West, F. Moreau, S. J. Aplin, C. Niebuhr, G. Leibenguth, A. D.R. Vargas Trevino, A. Astvatsatourov, Mila Pandurovic, S. Egli, Y. Soloviev, K. H. Hiller, K. Daum, R. C. W. Henderson, A. Specka, Matthias Ulrich Mozer, A. Fedotov, M. Kraemer, M. Gouzevitch, R. Kogler, J. Žáček, U. Straumann, Magnus Hansson, Voica Radescu, Christoph Grab, Richard Polifka, A. Knutsson, M. Deak, K. B. Cantun Avila, E. Wünsch, T. Toll, S. Shushkevich, Sakar Osman, V. Chekelian, M. Del Degan, B. R. Grell, V. Lendermann, F. D. Aaron, Judith Katzy, C. Wissing, A. Eliseev, C. Kiesling, Pavel Murin, Tim Greenshaw, J-P. Meyer, V. Jemanov, D. Wegener, J. Delvax, A. J. Campbell, G. Thompson, Paul Laycock, E. Malinovski, Emmanuel Sauvan, M. von den Driesch, Wolfgang Lange, G. D. Patel, Biljana Antunović, F. Tomasz, A. Raspiareza, Stephen Maxfield, David M. South, P. E. Reimer, Z. Staykova, J. Bracinik, I. R. Kenyon, Karel Cerny, Th. D. Papadopoulou, B. Stella, J. Gayler, T. Sykora, M. Sauter, A. Baghdasaryan, A. Rostovtsev, A. Schöning, Tomas Hreus, Stefan Schmitt, G. Grindhammer, T. H. Tran, I. Sheviakov, V. Efremenko, L. Goerlich, M. E. Janssen, Roland Horisberger, T. Kluge, A. Lebedev, J. Ferencei, A. Valkárová, Laurent Schoeffel, Andrew Mehta, N. Gogitidze, H. Henschel, Laurent Favart, D. Haidt, A. De Roeck, A. Nikiforov, K. Krastev, A. Glazov, J.C. Bizot, S. Mikocki, Fabian Zomer, Vladimir Andreev, Peter Robmann, K. Urban, Eram Rizvi, Calin Alexa, Gabriel Stoicea, H. U. Martyn, Matthias Klein, Murrough Landon, V. Korbel, J. Zálešák, A. Makankine, A. Dubak, V. Dodonov, V. Spaskov, S. Ghazaryan, G. Buschhorn, D. Ozerov, Vladimir Palichik, Ll. Marti, G. Cozzika, I. Picuric, C. Pascaud, T. Zimmermann, A. B. Meyer, V. Cerny, D. J. Fischer, B. Olivier, A. W. Jung, Zhen Zhang, Ricardo Lopez-Fernandez, S. Backovic, I. Bozovic-Jelisavcic, M. Herbst, Y. Vazdik, Zuzana Rurikova, E. E. Elsen, S. Vinokurova, M. Jacquet, Guenter Eckerlin, Nicolas Berger, I. Panagoulias, G. Herrera, P.D. Thompson, V. Michels, P. Van Mechelen, J. B. Dainton, B. Tseepeldorj, M. Steder, D. Hoffmann, P. Kostka, Ivan Smiljanic, C. Schmitz, Dusan Bruncko, Hannes Jung, B. Naroska, D. P. C. Sankey, J. Turnau, Alexander Zhokin, S. Levonian, John A Coughlan, J. E. Olsson, C. Vallée, D. Salek, E. Hennekemper, K. Begzsuren, M. Mudrinic, I. Tsakov, L. Bystritskaya, W. Bartel, Th. Naumann, Christian Helebrant, T. Ravdandorj, Claus Kleinwort, Leif J. Jönsson, Benoit Roland, Malte Hildebrandt, Anna Kropivnitskaya, Gang Li, Gerhard Brandt, V. Volchinski, M. Kapichine, M. Nozicka, R. Felst, Emmanuelle Perez, J. G. Contreras, H. Meyer, H. Zohrabyan, B. Delcourt, Xavier Janssen, I. Milcewicz-Mika, S. M. Piec, E. Gabathuler, T. N. Trinh, M. Fleischer, Natasa Raicevic, J. Feltesse, J. Cvach, Vincent Boudry, O. Pejchal, A. N. Morozov, Bogdan Povh, F. Sefkow, Benno List, R. Plačakytė, P. Sopicki, A. M. Fomenko, K. Nowak, H-C. Schultz-Coulon, M. Brinkmann, Krzysztof Kutak, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, K. Müller, N. Loktionova, T. Preda, E. Barrelet, J. E. Ruiz Tabasco, E. A. De Wolf, Karlheinz Meier, R. Roosen, Y. de Boer, Paul Richard Newman, Grzegorz Nowak, A. Dossanov, A. Petrukhin, S. Habib, V. Brisson, A. Falkiewicz, K. Krüger, V. Lubimov, L. N. Shtarkov, Daniel Pitzl, D. Traynor, A. Asmone, F. Cassol-Brunner, Jan Kretzschmar, Andrej Liptaj, Pierre Marage, I. Glushkov, O. Behnke, D. Sunar, A. Cholewa, L. Lytkin, and Cristinel Diaconu
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, 01 natural sciences, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: Inclusive non-diffractive photoproduction of rho(770)(0), K*(892)(0) and phi(1020) mesons is investigated with the H1 detector in ep collisions at HERA. The corresponding average gamma p centre-of-mass energy is 210 GeV. The mesons are measured in the transverse momentum range 0.5 < p(T) < 7 GeV and the rapidity range vertical bar y(lab)vertical bar < 1. Differential cross sections are presented as a function of transverse momentum and rapidity, and are compared to the predictions of hadroproduction models. (C) 2009 Elsevier B.V. All rights reserved.
Published: 2009

18. Measurement of diffractive scattering of photons with large momentum transfer at HERA

Author: J. Feltesse, David M. South, H. Peng, Leif J. Jönsson, Benoit Roland, A. Baghdasaryan, A. Rostovtsev, K. H. Hiller, R. C. W. Henderson, Matthias Ulrich Mozer, T. Klimkovich, A. Fedotov, S. Vinokurova, K. B. Cantun Avila, M. E. Janssen, P. Kostka, Paul Laycock, J. Turnau, E. Malinovski, Emmanuel Sauvan, Stephen Maxfield, V. Lubimov, P. A. Smirnov, C. Kiesling, E. Tzamariudaki, A. J. Campbell, K. Nankov, L. N. Shtarkov, E. E. Elsen, G. Grindhammer, E. Wünsch, A. Specka, K. Begzsuren, T. H. Tran, Dave Sankey, S. Habib, A. Falkiewicz, I. R. Kenyon, J. E. Olsson, Laurent Schoeffel, M. Mudrinic, J. Delvax, K. Krüger, Peter Robmann, Alessandro Bacchetta, I. Tsakov, W. Bartel, Pierre Marage, Emmanuelle Perez, L. Bystritskaya, Matthew Beckingham, Andrew Mehta, C. Niebuhr, N. Gogitidze, P. E. Reimer, Th. Naumann, Malte Hildebrandt, K. Urban, Murrough Landon, G. D. Patel, Biljana Antunović, B. Stella, Anna Kropivnitskaya, Roland Horisberger, J. Žáček, G. Leibenguth, H. U. Martyn, Matthias Klein, I. Glushkov, A. Valkárová, S. Egli, R. Felst, Stefan Schmitt, H. Zohrabyan, Katerina Lipka, T. Sykora, V. Tchoulakov, R.N. Shaw-West, Zhiqing Zhang, T. Zimmermann, Natasa Raicevic, Y. Soloviev, E. Gabathuler, V. Michels, J. B. Dainton, D. Wegener, M. Fleischer, S. M. Piec, M. Gouzevitch, Hans-Christian Schultz-Coulon, Vincent Boudry, A. N. Morozov, V. Yeganov, P. Van Mechelen, G. Laštovička-Medin, Gerhard Brandt, Voica Radescu, A. Lebedev, F. Salvaire, D. Haidt, B. R. Grell, A. De Roeck, Eram Rizvi, M. Kapichine, M. Nozicka, A. Nikiforov, O. Behnke, I. Sheviakov, S. Backovic, Daniel Pitzl, U. Straumann, Ll. Marti, Vladimir Palichik, Bogdan Povh, F. Sefkow, Gang Li, B. Delcourt, V. Lendermann, F. Moreau, S. J. Aplin, I. Bozovic-Jelisavcic, Christoph Grab, D. Traynor, A. Asmone, F. Tomasz, C. Wissing, L. Finke, R. Plačakytė, V. Dodonov, S. Shushkevich, Sakar Osman, A.-I. Lucaci-Timoce, V. Volchinski, Zuzana Rurikova, J. Zálešák, F. Cassol-Brunner, H. Meyer, Judith Katzy, Y.C. Zhu, K. Daum, A. Eliseev, V. Efremenko, Wolfgang Lange, V. Spaskov, P. Sopicki, A. M. Fomenko, B. Tseepeldorj, T. Kluge, Benno List, N. Loktionova, M. Brinkmann, A. Hovhannisyan, T. Preda, I. Tsurin, I. Milcewicz-Mika, O. Pejchal, I. Picuric, P. Baranov, M. Goettlich, J. Gayler, K. Krastev, Ricardo Lopez-Fernandez, I. Panagoulias, M. Steder, D. Hoffmann, S. Essenov, Fabian Zomer, G. Cozzika, C. Schmitz, A. Astvatsatourov, Mila Pandurovic, Jan Kretzschmar, Andrej Liptaj, A. D.R. Vargas Trevino, D. Sunar, R. Kogler, Karel Cerny, J. Bracinik, A. Schöning, A. Knutsson, A. Makankine, G. Buschhorn, D. Ozerov, J. V. Morris, Jenny List, Calin Alexa, A.J. Rahmat, A. Bunyatyan, Marina Rotaru, S. Ghazaryan, Tomas Hreus, V. Jemanov, A. Raspiareza, M. Sauter, A. B. Meyer, A. Dubak, Dusan Bruncko, B. Naroska, Y. Vazdik, P.D. Thompson, T. Greenshaw, Xavier Janssen, T. N. Trinh, J-P. Meyer, T. Toll, S. Mikocki, C. Pascaud, Guenter Eckerlin, T. J. Sloan, P.J.W. Faulkner, V. Cerny, Hannes Jung, Alexander Zhokin, C. Vallée, M. Deak, M.-O. Boenig, D. Johnson, A. Glazov, V. Korbel, J. Ferencei, B. Olivier, Nicolas Berger, A.S. Belousov, Sergey Rusakov, P. Truöl, S. Levonian, G. Thompson, A. Zhelezov, Z. Staykova, V. Andreev, John A Coughlan, A. Cholewa, H. Henschel, Magnus Hansson, M. Jacquet, J.C. Bizot, T. Ravdandorj, Claus Kleinwort, M. Kraemer, M. Del Degan, L. Lytkin, Christian Helebrant, Richard Polifka, Cristinel Diaconu, L. Goerlich, S. Schmidt, V. Chekelian, F. D. Aaron, E. Barrelet, A. W. Jung, G. Herrera, J. E. Ruiz Tabasco, E. A. De Wolf, Krzysztof Kutak, Karlheinz Meier, R. Roosen, Y. de Boer, K. Müller, Paul Richard Newman, Grzegorz Nowak, A. Dossanov, A. Petrukhin, J. Cvach, K. Nowak, Michael R. Wessels, V. Brisson, Ivan Smiljanic, D. Salek, J. G. Contreras, Pavel Murin, Th. D. Papadopoulou, Laurent Favart, 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, (ukupan broj autora: 274), H1 Collaboration, 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: Diffraction, Particle physics, Nuclear and High Energy Physics, Photon, FOS: Physical sciences, Physics::Optics, 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, Vector meson, Nuclear Experiment, 010306 general physics, Physics, 010308 nuclear & particles physics, Scattering, Momentum transfer, Perturbative QCD, HERA, Vertex (geometry), Physique des particules élémentaires, High Energy Physics::Experiment
Abstract: The first measurement of diffractive scattering of quasi-real photons with large momentum transfer γ p → γ Y, where Y is the proton dissociative system, is made using the H1 detector at HERA. The measurement is performed for initial photon virtualities Q 2 < 0.01 GeV 2. Single differential cross sections are measured as a function of W, the incident photon-proton centre of mass energy, and t, the square of the four-momentum transferred at the proton vertex, in the range 175 < W < 247 GeV and 4 <, 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2009
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19. 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

20. Measurement of inclusive jet production in deep-inelastic scattering at high and determination of the strong coupling

Author: E. Wünsch, G. Tsipolitis, M. Deak, Dave Sankey, Daniel Pitzl, J. Delvax, Wolfgang Lange, M. Goettlich, A. M. Fomenko, G. Thompson, Pavel Murin, D. Traynor, Z. Staykova, A. Asmone, J. E. Olsson, G. D. Patel, V. Lubimov, W. Bartel, T. Kluge, I. Picuric, Guenter Eckerlin, J. Gayler, Leif J. Jönsson, Benoit Roland, Malte Hildebrandt, Biljana Antunović, D.P. Johnson, Paul Richard Newman, Grzegorz Nowak, F. Cassol-Brunner, F. Eisele, T. Sykora, K. Müller, F. W. Büsser, C. Niebuhr, Th. Papadopoulou, M. Fleischer, R. Oganezov, A. Petrukhin, H. Henschel, J.C. Bizot, Bogdan Povh, F. Sefkow, Laurent Favart, T. Anthonis, S. Egli, M. Kraemer, T. Klimkovich, Natasa Raicevic, J. Feltesse, K. Nankov, Y. Soloviev, M. Kapichine, R. Plaakyt, L. N. Shtarkov, J. V. Morris, Jan Kretzschmar, Richard Polifka, S. Schmidt, C. Risler, V. Cerny, Vincent Boudry, B. Olivier, Jenny List, P. E. Reimer, K. H. Hiller, M. Nozicka, Peter Robmann, A.J. Rahmat, A. Bunyatyan, R. C. W. Henderson, N. Loktionova, Andrej Liptaj, A. N. Morozov, D. Perez-Astudillo, V. Chekelian, D. Sunar, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, R. Weber, J. Cvach, A. Hovhannisyan, T. Preda, L. Finke, J. Zacek, C. Wissing, T. Toll, Ivan Smiljanic, B. Delcourt, Voica Radescu, Christoph Grab, Michael R. Wessels, V. Brisson, B. R. Grell, F. Tomasz, K. Nowak, Stephen Maxfield, T. N. Trinh, T. Zimmermann, J. Stiewe, I. Tsurin, V. Andreev, Katerina Lipka, David M. South, Sakar Osman, I. R. Kenyon, C. Pascaud, J. Záleák, A. Astvatsatourov, Mila Pandurovic, A. Cholewa, Andrew Mehta, J. Bracinik, V. Tchoulakov, N. Gogitidze, A. Lebedev, A. Eliseev, E. Barrelet, J. G. Contreras, A. Mohamed, S. Backovic, Zuzana Rurikova, A. W. Jung, P. Baranov, A. Baghdasaryan, A. Rostovtsev, Y.C. Zhu, P. Prideaux, F. Salvaire, D. Haidt, T. J. Sloan, K. Daum, Christian Helebrant, R.N. Shaw-West, I. Sheviakov, Eram Rizvi, G. Heinzelmann, Judith Katzy, E. A. De Wolf, Karlheinz Meier, R. Roosen, K. Krastev, L. Lytkin, Cristinel Diaconu, G. Latovika-Medin, Pierre Marage, A. Dubak, S. Levonian, V. Dodonov, G. Herrera, R. Wolf, M. E. Janssen, Fabian Zomer, Ll. Marti, Dirk L. Hoffmann, I. Bozovic-Jelisavcic, G. Franke, A. Specka, Y. de Boer, L. Lindfeld, S. Habib, P.J.W. Faulkner, John A Coughlan, A.S. Belousov, Sergey Rusakov, D. Utkin, P. Truöl, Hans-Christian Schultz-Coulon, V. Jemanov, I. Glushkov, V. Spaskov, Gang Li, G. Cozzika, E. E. Elsen, Roland Horisberger, A. Valkárová, Y. Vazdik, B. Stella, Stefan Schmitt, A. D.R. Vargas Trevino, Zhen Zhang, M. Jacquet, Ricardo Lopez-Fernandez, H. U. Martyn, A. Falkiewicz, P.D. Thompson, M. Sauter, D. Wegener, Emmanuelle Perez, K. Krüger, A. B. Meyer, C. Schmitz, M. Steder, Hannes Jung, Alexander Zhokin, C. Vallée, Stefania Xella, Tomas Hreus, R. Eichler, V. Yeganov, T. Frisson, S. M. Piec, O. Behrendt, H. Peng, S. Vinokurova, Vladimir Palichik, A. Aktas, I. Milcewicz-Mika, P. Kostka, V. Efremenko, Matthias Ulrich Mozer, F. Moreau, S. J. Aplin, S. Mikocki, O. Behnke, J. Turnau, Calin Alexa, A. Fedotov, Dusan Bruncko, B. Naroska, K. B. Cantun Avila, K. Begzsuren, S. Ginzburgskaya, C. Kiesling, A. De Roeck, E. Tzamariudaki, I. Tsakov, A. J. Campbell, S. Ghazaryan, Th. Naumann, K. Urban, G. Leibenguth, Murrough Landon, W. Yan, T. Greenshaw, E. Gabathuler, I. Panagoulias, A. Schöning, S. Gorbounov, J. Ferencei, M. Martisikova, V. Michels, S. Essenov, J. B. Dainton, M.-O. Boenig, T. Ravdandorj, Claus Kleinwort, A. Knutsson, Nicolas Berger, A. Makankine, P. Van Mechelen, Max Klein, G. Buschhorn, D. Ozerov, A. Zhelezov, S. Baudrand, T.H. Tran, Adrian Perieanu, P. A. Smirnov, Gerhard Brandt, V. Volchinski, H. Meyer, Xavier Janssen, A. Nikiforov, J-P. Meyer, Maxime Gouzevitch, Benno List, M. Brinkmann, V. Korbel, V. Lendermann, Magnus Hansson, M. Del Degan, A.-I. Lucaci-Timoce, C. Werner, L. Goerlich, L. Bystritskaya, G. Weber, H. Zohrabyan, U. Straumann, Laurent Schoeffel, B. Tseepeldorj, Karel Cerny, Matthew Beckingham, Anna Kropivnitskaya, R. Felst, and A. Glazov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Jet (fluid), Neutral current, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Four-momentum, Perturbative QCD, HERA, Deep inelastic scattering, 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: Inclusive jet production is studied in neutral current deep-inelastic positron-proton scattering at large four momentum transfer squared Q^2>150 GeV^2 with the H1 detector at HERA. Single and double differential inclusive jet cross sections are measured as a function of Q^2 and of the transverse energy E_T of the jets in the Breit frame. The measurements are found to be well described by calculations at next-to-leading order in perturbative QCD. The running of the strong coupling is demonstrated and the value of alpha_s(M_Z) is determined. The ratio of the inclusive jet cross section to the inclusive neutral current cross section is also measured and used to extract a precise value for alpha_s(M_Z)=0.1193+/-0.0014(exp.)^{+0.0047}_{-0.0030}(th.)+/-0.0016(pdf).
Published: 2007

21. Diffractive open charm production in deep-inelastic scattering and photoproduction at HERA

Author: S. Hussain, C. Grab, G. Thompson, H. Henschel, J.C. Bizot, G. Tsipolitis, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, Judith Katzy, G. Cozzika, C. Schmitz, Hannes Jung, Alexander Zhokin, C. Vallée, W. Yan, Peter Robmann, A. M. Fomenko, E. Gabathuler, N. Loktionova, V. Jemanov, A. Hovhannisyan, Gero Flucke, M. Kapichine, M. Nozicka, H. Peng, I. Tsurin, G. Laštovička-Medin, B. Delcourt, D. Mladenov, Matthias Ulrich Mozer, Søren Schmidt, A. Baghdasaryan, A. Rostovtsev, A. Lebedev, A. Fedotov, Dusan Bruncko, M. Gouzevitch, K. B. Cantun Avila, S. Ginzburgskaya, C. Kiesling, A. De Roeck, F. Salvaire, E. Tzamariudaki, A. J. Campbell, D. Haidt, J. Feltesse, K. H. Hiller, R. C. W. Henderson, Laurent Schoeffel, Paul Newman, T. Zimmermann, A. Aktas, P. Baranov, B. Naroska, J. Cvach, M. Goettlich, D. Utkin, R.N. Shaw-West, A. Rimmer, C. Risler, C. Niebuhr, M. Fleischer, T. J. Sloan, Eram Rizvi, A. Dubak, P.J.W. Faulkner, G. Heinzelmann, A. Knutsson, Pavel Murin, K. Nowak, A.S. Belousov, T. Greenshaw, Sergey Rusakov, P. Truöl, Magnus Hansson, S. Egli, Y. Vazdik, B. List, M. Del Degan, V. Dodonov, Stefania Xella, S. Backovic, Th. D. Papadopoulou, M. Ibbotson, Y. Soloviev, Max Klein, G. Weber, C. Gwilliam, E. E. Elsen, U. Straumann, Thomas Naumann, Bogdan Povh, F. Sefkow, A. D.R. Vargas Trevino, J. Ferencei, Zuzana Rurikova, A. Astvatsatourov, Mila Pandurovic, K. Urban, M. Martisikova, Murrough Landon, A. Makankine, Erika Garutti, D. Wegener, Katerina Lipka, S. Ghazaryan, H. Lueders, G. Buschhorn, D. Ozerov, V. Tchoulakov, L. Goerlich, C. Wissing, Wolfgang Lange, V. Korbel, A. Specka, M. Sauter, E. Wünsch, R. Weber, Claus Kleinwort, P. A. Smirnov, M. Kraemer, Dave Sankey, S. M. Piec, Laurent Favart, M. Brinkmann, H. U. Martyn, J. Gayler, T. Anthonis, V. Efremenko, K. Müller, G. D. Patel, Matthew Beckingham, S. Gorbounov, T. Kluge, Stephen Maxfield, S. Mikocki, Biljana Antunović, G. Leibenguth, D.P. Johnson, T. Sykora, J. Stiewe, V. Chekelian, Anna Kropivnitskaya, E. Perez, Andrew Mehta, J. Bracinik, N. Gogitidze, R. Felst, I. Picuric, C. Pascaud, C. Werner, Guenter Eckerlin, André Schöning, J. V. Morris, Jenny List, A. W. Jung, M. Wessels, I. Sheviakov, P. E. Reimer, G. Herrera, Bradley Cox, A.J. Rahmat, A. Bunyatyan, A. Nikiforov, M. Jacquet, K. Krüger, R. Wolf, T. Frisson, Karel Cerny, J. Zálešák, P. Van Mechelen, L. Bystritskaya, V. Spaskov, S. Baudrand, K. Wacker, Ivan Smiljanic, I. Milcewicz-Mika, Anton Babaev, J. G. Contreras, A. Mohamed, P. Prideaux, A. Glazov, P. D. Thompson, V. Yeganov, H. Zohrabyan, A. Stoilov, Ll. Marti, I. Bozovic-Jelisavcic, L. Finke, R. Marshall, F. Moreau, S. J. Aplin, R. Plačakytė, Y.C. Zhu, S. Essenov, F. Zomer, K. Daum, V. Michels, J. B. Dainton, V. Andreev, V. Lendermann, A.-I. Lucaci-Timoce, G. Knies, Christian Helebrant, G. Franke, J. Žáček, Leif J. Jönsson, Benoit Roland, Hans-Christian Schultz-Coulon, T. Klimkovich, A. Falkewicz, Tomas Hreus, R. Eichler, F. Eisele, R. Oganezov, V. Cerny, B. Olivier, John A Coughlan, Grzegorz Nowak, A. Petrukhin, V. Brisson, E. Barrelet, T. Toll, E. A. De Wolf, Karlheinz Meier, R. Roosen, Y. de Boer, B. Stella, Stefan Schmitt, Vladimir Palichik, V. Lubimov, K. Nankov, L. N. Shtarkov, M.-O. Boenig, Zhen Zhang, Ricardo Lopez-Fernandez, S. Levonian, I. Panagoulias, M. Steder, S. Habib, Sakar Osman, D. Hoffmann, Andreas Meyer, Nicolas Berger, David South, A. Usik, J. Zimmermann, A. Eliseev, J. E. Olsson, A. Zhelezov, W. Bartel, J-P. Meyer, Malte Hildebrandt, F. W. Büsser, I. R. Kenyon, Natasa Raicevic, O. Behrendt, Vincent Boudry, S. Vinokurova, A. N. Morozov, P. Kostka, D. Perez-Astudillo, M. Gregori, J. Turnau, Adrian Perieanu, B. R. Grell, Gerhard Brandt, V. Volchinski, K. Begzsuren, H. Meyer, F. Tomasz, Xavier Janssen, I. Tsakov, T. N. Trinh, Roland Horisberger, A. Valkárová, K. Krastev, L. Lindfeld, D. Sunar, L. Lytkin, Cristinel Diaconu, Daniel Pitzl, D. Traynor, A. Asmone, F. Cassol-Brunner, M. Urban, Jan Kretzschmar, Andrej Liptaj, Pierre Marage, I. Glushkov, O. Behnke, 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), H1, (ukupan broj autora: 294), 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, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, FOS: Physical sciences, Parton, HERA, Deep inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, Charm quark, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: Measurements are presented of diffractive open charm production at HERA. The event topology is given by ep -> eX Y where the system X contains at least one charmed hadron and is well separated by a large rapidity gap from a leading low-mass proton remnant system Y. Two analysis techniques are used for the cross section measurements. In the first, the charm quark is tagged by the reconstruction of a D*(2010) meson. This technique is used in deep-inelastic scattering (DIS) and photoproduction. In the second, a method based on the displacement of tracks from the primary vertex is used to measure the open charm contribution to the inclusive diffractive cross section in DIS. The measurements are compared with next-to-leading order QCD predictions based on diffractive parton density functions previously obtained from a QCD analysis of the inclusive diffractive cross section at H1. A good agreement is observed in the full kinematic regime, which supports the validity of QCD factorization for open charm production in diffractive DIS and photoproduction., 39 pages, 13 figures, 8 tables
Published: 2007

22. 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

23. Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA

Author: Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, D. Ozerov, J. Žáček, F. Huber, J. Cvach, V. Spaskov, Wolfgang Lange, Hans-Christian Schultz-Coulon, R. Plaˇcakyṫe, J. Gayler, P. D. Thompson, J. E. Olsson, Paul Newman, K. Daum, Tomas Sykora, Stephen Maxfield, M. Sauter, Andrew Mehta, N. Gogitidze, Tomas Hreus, C. Niebuhr, S. Egli, Claus Kleinwort, C. Pascaud, C. Vallée, A. Lebedev, D. Haidt, D. Traynor, K. Müller, B. Tseepeldorj, H. J. Meyer, Richard Polifka, Y. Soloviev, P. E. Reimer, D. Wegener, U. Straumann, Katerina Lipka, R. Roosen, Eram Rizvi, Natasa Raicevic, Y. Vazdik, R. C. W. Henderson, B. Stella, V. Dodonov, V. Andreev, Stefan Schmitt, Peter Robmann, Monica Dobre, Vincent Boudry, V. Chekelian, J. Turnau, A. N. Morozov, B. Lobodzinski, A. Specka, K. Begzsuren, Grzegorz Nowak, Voica Radescu, Christoph Grab, S. Ghazaryan, Daniel Pitzl, A. Petrukhin, A. B. Meyer, E. Wünsch, Dave Sankey, Karel Cerny, A. Buniatyan, M. Fleischer, I. Tsakov, Laurent Schoeffel, M. Herbst, J-P. Meyer, B. Pokorny, Roman Kogler, K. B. Cantun Avila, G. D. Patel, Murrough Landon, Roland Horisberger, A. Valkárová, S. Mikocki, Zhen Zhang, V. Brisson, L. Goerlich, A. Baghdasaryan, A. J. Campbell, A. Glazov, A.S. Belousov, Sergey Rusakov, A. Rostovtsev, P. Truöl, R. Žlebčík, M. Steder, Jenny List, Federico Alberto Ceccopieri, C. Kiesling, Dieter Hoffmann, P. Van Mechelen, P. Kostka, Marina Rotaru, Th. Naumann, P. Pahl, E. Gabathuler, S. Shushkevich, Jan Kretzschmar, T. Greenshaw, H. U. Martyn, Alexander Bylinkin, M. Jacquet, E. E. Elsen, J. Ferencei, F. Sefkow, Emmanuelle Perez, Maxime Gouzevitch, T. Ravdandorj, Daniel Britzger, A. Grebenyuk, Cristinel Diaconu, I. Picuric, Guenter Eckerlin, André Schöning, Gerhard Brandt, P. Sopicki, A. M. Fomenko, D. Salek, Xavier Janssen, J. G. Contreras, J. Feltesse, Max Klein, H. Pirumov, Laurent Favart, S. Levonian, J. B. Dainton, Fabian Zomer, A. V. Fedotov, L. Bystritskaya, H. Zohrabyan, Benno List, Katja Krüger, Hannes Jung, M. Kapichine, David South, 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), 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, and 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)
Subjects: Particle physics, Nuclear and High Energy Physics, Lepton-Nucleon Scattering, diffraction, FOS: Physical sciences, Parton, Inelastic scattering, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), phase space, 0103 physical sciences, quantum chromodynamics, strong coupling, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, 010306 general physics, Quantum chromodynamics, Physics, Luminosity (scattering theory), longitudinal momentum, 010308 nuclear & particles physics, Scattering, scattering, photon, HERA, Diffraction, Jet physics, Deep inelastic scattering, production [dijet], DESY HERA Stor, Pair production, fractional, deep inelastic scattering [electron p], High Energy Physics::Experiment, distribution function [parton], coupling constant [strong interaction], 1 [higher-order], Particle Physics - Experiment, experimental results
Abstract: A measurement is presented of single- and double-differential dijet cross sections in diffractive deep-inelastic $ep$ scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb^{-1}. The investigated phase space is spanned by the photon virtuality in the range of 4, Comment: 32 pages, 10 figures, 9 tables, submitted to JHEP
Published: 2015

24. Search for a narrow baryonic resonance decaying toKs0porKs0p¯in deep inelastic scattering at HERA

Author: S. Levonian, A. M. Fomenko, Pierre Marage, Peter Robmann, Stephen Maxfield, C. Gerlich, Paul Laycock, L. Finke, B. Olivier, I. Glushkov, F. Zomer, H-C. Schultz-Coulon, J. Stiewe, Zhen Zhang, D. P. C. Sankey, Y.C. Zhu, K. Daum, Ricardo Lopez-Fernandez, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, Magnus Hansson, M. Del Degan, C. Wissing, Andrew Mehta, J. Bracinik, Ewelina Lobodzinska, Matthew Beckingham, P. Baranov, M. Steder, D. Hoffmann, T. Zimmermann, L. Goerlich, Anna Kropivnitskaya, Roland Horisberger, A. Valkárová, R. Felst, N. Gogitidze, A. Usik, G. Cozzika, T. Toll, V. Michels, W.D. Dau, J. B. Dainton, G. Knies, H. Peng, V. Andreev, S. Backovic, Thorsten Lux, C. Niebuhr, L. Janauschek, David South, T. Kluge, O. Behnke, D. Mladenov, B. R. Grell, S. Egli, V. Jemanov, F. Tomasz, Matthias Ulrich Mozer, J. Zimmermann, H. Lueders, K. Krüger, C. Schmitz, C. Pascaud, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Hannes Jung, Alexander Zhokin, Y. Soloviev, Sergey Rusakov, P. Truöl, V. Lubimov, Dusan Bruncko, J. Becker, C. Vallée, Guenter Eckerlin, E. Barrelet, Z. Rurikova, A. Fedotov, A. W. Jung, B. Naroska, D. Sunar, B. Stella, D. Lüke, Stefan Schmitt, S. Baumgartner, P. E. Reimer, S. Ginzburgskaya, Søren Schmidt, C. Kiesling, A. De Roeck, E. Tzamariudaki, A. J. Campbell, K. Krastev, G. Herrera, Bradley Cox, Laurent Schoeffel, A. Dubak, K. H. Hiller, R. C. W. Henderson, G. Leibenguth, Sakar Osman, M. Jacquet, L. Lindfeld, W. Yan, T. Greenshaw, Christoph Grab, Erika Garutti, R. Wolf, K. Urban, K. Nankov, L. N. Shtarkov, E. Wünsch, A. Eliseev, C. Veelken, E. A. De Wolf, Karlheinz Meier, R. Roosen, Anton Babaev, N. Loktionova, J. E. Olsson, W. Bartel, S. Hussain, J. Ferencei, M. Martisikova, G. Thompson, Adrian Perieanu, S. Gorbounov, L. Lytkin, A. Specka, Malte Hildebrandt, Cristinel Diaconu, Vladimir Palichik, J. G. Contreras, A. Mohamed, Georgios Tsipolitis, M. Fleischer, T. Frisson, G. Weber, U. Straumann, A. Aktas, I. Milcewicz-Mika, G. Franke, P. Prideaux, A. Hovhannisyan, Claus Kleinwort, Th. Naumann, J. Žáček, A. Baghdasaryan, A. Rostovtsev, Daniel Pitzl, Wolfgang Lange, R. Weber, F. W. Büsser, O. Behrendt, S. Vinokurova, Y. de Boer, J. Feltesse, J. Gayler, V. Yeganov, D. Traynor, I. Tsurin, Ilias Panagoulias, A. Asmone, F. Moreau, S. J. Aplin, H. Henschel, F. Cassol-Brunner, Bogdan Povh, P. Kostka, F. Sefkow, L. Bystritskaya, J.C. Bizot, P. Van Mechelen, Natasa Raicevic, S. Baudrand, Leif J. Jönsson, Benoit Roland, V. Chekelian, L. Hajduk, D. Utkin, E. Gabathuler, M. Urban, B. List, J. Turnau, B. Portheault, H. U. Martyn, Matthias Klein, Theodora Papadopoulou, S. Essenov, M. Ismail, M. Kapichine, M. Nozicka, Vincent Boudry, Gerhard Brandt, John A Coughlan, E. E. Elsen, I. Tsakov, A. N. Morozov, H. Zohrabyan, D. Perez-Astudillo, M. Gregori, David Milstead, P. A. Smirnov, R. Plačakytė, A. Schöning, E. Rizvi, G. D. Patel, Jan Kretzschmar, B. Delcourt, V. Volchinski, Andrej Liptaj, S. Ghazaryan, Paul Richard Newman, Grzegorz Nowak, Pavel Murin, M. Ibbotson, T. Klimkovich, I. Sheviakov, S. Schätzel, Biljana Antunović, Katerina Lipka, A. Falkewicz, H. Meyer, Emmanuelle Perez, Karel Cerny, Laurent Favart, V. Tchoulakov, R.N. Shaw-West, A. Petrukhin, T. Anthonis, J. Zálešák, Xavier Janssen, V. Spaskov, D.P. Johnson, K. Wacker, A. B. Meyer, Tomas Hreus, R. Eichler, A. Glazov, V. Korbel, Y. Vazdik, N. Malden, I. R. Kenyon, A. Stoilov, G. Laštovička-Medin, Michael R. Wessels, V. Brisson, P.D. Thompson, Stefania Xella, C. Werner, A. Rimmer, J. V. Morris, Jenny List, A. Knutsson, A. Makankine, A.J. Rahmat, A. Bunyatyan, Ll. Marti, G. Buschhorn, D. Ozerov, V. Lendermann, F. Eisele, M.-O. Boenig, S. Mangano, A. Nikiforov, R. Oganezov, Nicolas Berger, R. Marshall, A. Zhelezov, A. Lebedev, F. Salvaire, D. Haidt, A.-I. Lucaci-Timoce, G. Heinzelmann, V. Dodonov, A. D.R. Vargas Trevino, V. Cerny, G. Flucke, Jean-Arcady Meyer, C. Risler, C. Gwilliam, M. P. J. Landon, A. Astvatsatourov, Judith Katzy, B. Wessling, K. Müller, J. Cvach, K. Nowak, M. Goettlich, D. Wegener, V. Efremenko, and S. Mikocki
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Scattering, Resonance, Sigma, HERA, Deep inelastic scattering, 01 natural sciences, Pentaquark, Baryon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Bar (unit)
Abstract: A search for a narrow baryonic resonance decaying to K(s)(0)p or K-s(0)(p) over bar is carried out in deep inelastic ep scattering with the H1 detector at HERA. ss Such a resonance could be a strange pentaquark Theta(+), evidence for which has been reported by several experiments. The K(s)(0)p and K-s(0)(p) over bar invariant ss mass distributions presented here do not show any significant peak in the mass range from threshold up to 1.7 GeV. Mass dependent upper limits on sigma(ep -> e Theta X+) x BR(Theta(+) -> K(0)p) are obtained at the 95% confidence level.
Published: 2006

25. Measurement of $F_2^{c\bar{c}}$ and $F_2^{b\bar{b}}$ at low Q2 and x * using the H1 vertex detector at HERA

Author: Daniel Pitzl, J. Zacek, G. Leibenguth, Pavel Murin, M. Ibbotson, B. Stella, Roland Horisberger, A. Valkárová, I. Sheviakov, Stefan Schmitt, F. Cassol-Brunner, A. Makankine, Wolfram Erdmann, G. Buschhorn, D. Ozerov, R. Weber, A. Baghdasaryan, M. Jacquet, D. P. C. Sankey, P. E. Reimer, A. Rostovtsev, M. Goettlich, L. Hajduk, Wolfgang Lange, B. Olivier, Laurent Favart, B. Portheault, A. Vest, O. Behrendt, S. Vinokurova, P. Kostka, T. Anthonis, V. Jemanov, J. Gayler, M. Hildebrandt, S. Hussain, J. Turnau, I. Milcewicz-Mika, I. Tsakov, Sakar Osman, C. Veelken, D. Meer, Matthew Beckingham, T. Laštovička, E. Barrelet, E. Gabathuler, E. Wünsch, Vladimir Palichik, K. H. Hiller, G. Thompson, R. C. W. Henderson, S. Gorbounov, V. Spaskov, Jan Kretzschmar, Anna Kropivnitskaya, V. Chekelian, S. Ghazaryan, J. Kückens, A. Nikiforov, Paul Laycock, E. Malinovski, Z. Rurikova, Emmanuel Sauvan, E. A. De Wolf, Ch. Berger, Karlheinz Meier, R. Roosen, G. Grindhammer, C. Goyon, B. R. Grell, Andrej Liptaj, R. Felst, D. Utkin, J. Bähr, Theodora Papadopoulou, D. Wegener, N. Werner, Y. de Boer, H. Henschel, E. Rizvi, G. D. Patel, K. Wacker, H. Meyer, Georgios Tsipolitis, M. Fleischer, B. List, A. Aktas, D.P. Johnson, P. Van Mechelen, J.C. Bizot, C. Niebuhr, Fabian Zomer, A. Specka, C. Wissing, D. Mladenov, Matthias Ulrich Mozer, R. Marshall, N. Malden, C. Pascaud, L. Finke, Dirk L. Hoffmann, S. Egli, Dusan Bruncko, G. Franke, B. Naroska, I. Foresti, M.-O. Boenig, G. Cozzika, Thorsten Lux, L. Janauschek, S. Ginzburgskaya, Grzegorz Nowak, Stefan Valkar, A. Petrukhin, E. Lobodzinska, C. Kiesling, F. Salvaire, P. D. Thompson, Bogdan Povh, F. Sefkow, M. Urban, D. Haidt, V. Yeganov, T. Greenshaw, Y.C. Zhu, K. Daum, John A Coughlan, Y. Soloviev, W.D. Dau, J. B. Dainton, K. Krastev, T. Hreus, L. Lytkin, A. De Roeck, E. Tzamariudaki, A. J. Campbell, A. Dubak, Y. Vazdik, D. Lüke, M. Peez, Stefania Xella, Leif J. Jönsson, Benoit Roland, J. Cvach, T. Klimkovich, Cristinel Diaconu, Stephen Maxfield, J. Stiewe, J. Bracinik, N. Gogitidze, F. P. Schilling, Christoph Grab, L. Schoeffel, Nicolas Berger, J. Zimmermann, S. Levonian, A. Zhelezov, S. Baudrand, J. Ferencei, M. Martisikova, S. Sch¨atzel, V. Efremenko, S. Mikocki, S. Schmidt, T. Kluge, Guenter Eckerlin, André Schöning, L. Goerlich, Michael R. Wessels, V. Brisson, L. Lindfeld, Zhen Zhang, Ricardo Lopez-Fernandez, S. Baumgartner, Andreas Meyer, A. Usik, T. Frisson, I. Strauch, Philipp Fleischmann, E. Perez, Peter Robmann, A. D.R. Vargas Trevino, B. Vujicic, Jean-Arcady Meyer, P. Baranov, G. Laštovička-Medin, C. Schmitz, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, A. Rimmer, A. Knutsson, Gero Flucke, M. Kapichine, M. Nozicka, F. Tomasz, G. Knies, B. Delcourt, Magnus Hansson, G. Heinzelmann, V. Dodonov, S. Mangano, F. Moreau, S. J. Aplin, S. Essenov, Ilias Panagoulias, D. Traynor, R. Plačakyte, Katerina Lipka, M. Ismail, David Milstead, P. A. Smirnov, V. Tchoulakov, Pierre Marage, Klaus Desch, A. Falkewicz, R. Eichler, Adrian Perieanu, S. Caron, J. E. Olsson, W. Bartel, F. W. Büsser, J. Zalesak, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, J. V. Morris, I. Glushkov, Gerhard Brandt, S. Backovic, V. Volchinski, I. R. Kenyon, Natasa Raicevic, H. Lueders, C. Risler, Vincent Boudry, A. W. Jung, Xavier Janssen, A. N. Morozov, M. Ellerbrock, W. Yan, D. Perez-Astudillo, M. Gregori, N. Loktionova, A. Bunyatyan, G. Herrera, Bradley Cox, D.K. Nikitin, O. Henshaw, O. Behnke, R. Wolf, B. Wessling, F. Eisele, A. Hovhannisyan, Ankita Mehta, Anton Babaev, J. G. Contreras, C. Gwilliam, A. M. Fomenko, A. Mohamed, J. Wagner, V. P. Andreev, C. Gerlich, M. P. J. Landon, A. Astvatsatourov, P. Prideaux, R. Oganezov, I. Tsurin, K. Sedlák, C. Wigmore, H-C. Schultz-Coulon, H. U. Martyn, Matthias Klein, K. Müller, V. Cerny, D.P. Brown, Judith Katzy, A. Asmone, Y.H. Fleming, David South, Karel Cerny, K. Krüger, V. Lubimov, K. Nankov, L. N. Shtarkov, A. Glazov, V. Korbel, Alexandre Lebedev, C. Werner, Paul Newman, T. Zimmermann, Claus Kleinwort, G. Weber, U. Straumann, Thomas Naumann, Erika Garutti, A. V. Fedotov, L. Bystritskaya, H. Zohrabyan, R.N. Shaw-West, N. Keller, V. Lendermann, and A.-I. Lucaci-Timoce
Subjects: Quark, Quantum chromodynamics, Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, Deep inelastic scattering, 01 natural sciences, Nuclear physics, 0103 physical sciences, Vertex (curve), High Energy Physics::Experiment, Charm (quantum number), Impact parameter, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Bar (unit)
Abstract: Measurements are presented of inclusive charm and beauty cross sections in e^+p collisions at HERA for values of photon virtuality 12 \le Q^2 \le 60 GeV^2 and of the Bjorken scaling variable 0.0002 \le x \le 0.005. The fractions of events containing charm and beauty quarks are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the H1 vertex detector. Values for the structure functions F_2^{c\bar{c}} and F_2^{b\bar{b}} are obtained. This is the first measurement of F_2^{b\bar{b}} in this kinematic range. The results are found to be compatible with the predictions of perturbative quantum chromodynamics and withprevious measurements of F_2^{c\bar{c}}.
Published: 2006

26. Search for light gravitinos in events with photons and missing transverse momentum at HERA

Author: V. Yeganov, D. Kant, P. E. Reimer, F. Moreau, G. G. Winter, Laurent Schoeffel, Dusan Bruncko, J. Wagner, Katerina Lipka, B. Naroska, J. Kroseberg, V. Lubimov, Pierre Marage, Murrough Landon, J. Böhme, T. Kluge, V. Tchoulakov, S. Gorbounov, I. R. Kenyon, Karel Cerny, H. U. Martyn, F. Zomer, A. Uraev, V. Andreev, H. Spitzer, Yves Sirois, T. Greenshaw, Erika Garutti, G. Franke, K. Nankov, L. N. Shtarkov, J. Ferencei, M. Martisikova, J. Naumann, I. Foresti, G. Cozzika, Georgios Tsipolitis, M. Fleischer, P. Van Mechelen, R. Weber, J. Marks, Claus Kleinwort, R. D. Heuer, Klaus Desch, Stefan Valkar, B. Olivier, Roland Horisberger, A. Valkárová, H.-B. Bröker, Hannes Jung, D.P. Brown, J. Haller, O. Henshaw, V. Jemanov, Paul Laycock, E. Malinovski, T. Laštovička, A. D.R. Vargas Trevino, A. Dubak, A. Rimmer, C. Wissing, Alexander Zhokin, S. Baumgartner, C. Niebuhr, J. Becker, Adrian Perieanu, C. Vallée, A. Lebedev, O. Behnke, Emmanuel Sauvan, A. Knutsson, S. Levonian, E. Barrelet, Z. Rurikova, Bogdan Povh, F. Sefkow, G. Grindhammer, J. Dingfelder, I. Sheviakov, S. Schmitt, Y. Vazdik, Daniel Pitzl, S. Egli, Y. R. Coppens, P. Baranov, D. Traynor, K. Daum, A. Asmone, K. H. Hiller, R. C. W. Henderson, N. Werner, F. Cassol-Brunner, E. A. De Wolf, Ch. Berger, C. Risler, R. Roosen, E. Perez, D. Haidt, David South, F. Tomasz, G. Knies, L. Hajduk, A. Aktas, Anton Babaev, J. G. Contreras, M. Urban, M. Jacquet, A. Mohamed, G. Weber, U. Straumann, I. Herynek, Thorsten Lux, L. Janauschek, N. Van Remortel, A. Nikiforov, V. Korbel, P.D. Thompson, M. Schneider, Stefania Xella, G. Thompson, Y. Soloviev, Leif J. Jönsson, Benoit Roland, T. Klimkovich, M. Peez, V. Volchinski, J. Zálešák, V. Spaskov, J. Kückens, K. Wacker, Peter Schleper, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, Martin Karlsson, C. Pascaud, P. Truöl, Paul Richard Newman, Guenter Eckerlin, A. Specka, H. Meyer, R. Demirchyan, C. Gwilliam, R. Pöschl, L. Bystritskaya, Eram Rizvi, H. Henschel, F. P. Schilling, Grzegorz Nowak, I. Milcewicz-Mika, Rainer Stamen, R. Koutouev, A. Petrukhin, Xavier Janssen, R. Marshall, J.C. Bizot, Th. Naumann, H. Zohrabyan, G. Heinzelmann, R. Plačakytė, W. Yan, K. Meier, Gero Flucke, M. Kapichine, M. Nozicka, K. Rybicki, A. Vest, O. Behrendt, V. Dodonov, N. Loktionova, V. Chekelian, S. Vinokurova, Pavel Murin, H. Grässler, J. Cvach, I. Strauch, M. Ibbotson, V. Nagovizin, J-P. Meyer, Judith Katzy, A. Makankine, N. Keller, G. Buschhorn, A. Hovhannisyan, J. Scheins, R. Lemrani, B. Delcourt, E. Gabathuler, Philipp Fleischmann, Laurent Favart, Christoph Grab, C. Werner, Y.H. Fleming, V. Lendermann, V. Schröder, L. Lytkin, T. Anthonis, D. Ozerov, I. Tsurin, B. Portheault, P. Kostka, Peter Robmann, Cristinel Diaconu, V. Brisson, J. Garvey, E. E. Elsen, J. Turnau, W.D. Dau, J. B. Dainton, S. Schätzel, A. Schöning, D. Lüke, C. Duprel, P. Höting, E. Wünsch, A. M. Fomenko, B. Leißner, A. Rostovtsev, Dave Sankey, M. Beckingham, Matthias Ulrich Mozer, A. Fedotov, D. Utkin, B. Reisert, G. D. Patel, C. Gerlich, Günter Flügge, M.-O. Boenig, J. Bähr, Wolfram Erdmann, B. List, S. Backovic, Max Klein, S. Ginzburgskaya, C. Kiesling, D.P. Johnson, A. De Roeck, E. Tzamariudaki, A. J. Campbell, H. Lueders, Stephen Maxfield, N. Malden, S. Mangano, M. Ismail, David Milstead, P. A. Smirnov, Wolfgang Lange, J. Stiewe, J. V. Morris, C. Veelken, S. Schmidt, A. Bunyatyan, J. Gayler, Andrew Mehta, J. Bracinik, N. Gogitidze, Nicolas Berger, Ewelina Lobodzinska, M. Wessels, S. Ghazaryan, M. Ellerbrock, G. Herrera, Bradley Cox, R. Wolf, B. Wessling, Anna Kropivnitskaya, Alexander Paramonov, R. Felst, A. Zhelezov, K. Müller, Christian Schwanenberger, John A Coughlan, S. Caron, Magnus Hansson, D.K. Nikitin, L. Goerlich, B. Stella, K. Gabathuler, D. Wegener, V. Efremenko, B. Koblitz, S. Mikocki, J. Formánek, R. Gerhards, K. Krüger, J. Žáček, Hans-Christian Schultz-Coulon, R. Eichler, E.-E. Woehrling, F. Eisele, R. Oganezov, K. Sedlák, J. E. Olsson, W. Bartel, Malte Hildebrandt, F. W. Büsser, T. Berndt, Natasa Raicevic, Vincent Boudry, A. N. Morozov, M. Gregori, Zhen Zhang, Ricardo Lopez-Fernandez, D. Hoffmann, Andreas Meyer, D. Meer, A. Usik, G. Frising, L. Lindfeld, 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and H1 Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Yukawa potential, FOS: Physical sciences, HERA, 01 natural sciences, Lightest Supersymmetric Particle, Supersymmetry breaking, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Selectron tube, 0103 physical sciences, Neutralino, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Gravitino, 010306 general physics
Abstract: A search for gravitinos produced in e±p collisions is performed using the H1 detector at HERA. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an integrated luminosity of 64.3 pb -1 for e+p collisions and 13.5 pb-1 for e -p collisions. If R-parity is not conserved, the t-channel exchange of a selectron can produce a neutralino, which, in models where the gravitino is the lightest supersymmetric particle, subsequently decays into a photon and a light gravitino. The resulting event signature, which involves an isolated photon, a jet and missing transverse energy, is analysed for the first time at HERA. No deviation from the Standard Model is found. Exclusion limits on the cross section and on R-parity-violating Yukawa couplings are derived in a Gauge Mediated Supersymmetry Breaking scenario. The results are independent of the squark sector. Neutralinos and supersymmetric partners of the left-handed electron with masses up to 112 GeV and 164 GeV, respectively, can be ruled out at the 95% confidence level for R-parity-violating couplings λ′ equal to 1, in some parts of the parameter space of the considered model. © 2005 Elsevier B.V. All rights reserved., 0, DESY-04-227 / hep-ex/0501030, SCOPUS: ar.j, H1 Collaboration., info:eu-repo/semantics/published
Published: 2005

27. Measurement of $F_2^{c\bar{c}}$ and $F_2^{b\bar{b}}$ at high Q 2 using the H1 vertex detector at HERA

Author: G. G. Winter, G. Thompson, A. Nikiforov, Denis Johnson, K. H. Hiller, R. C. W. Henderson, S. Levonian, Jochen Dingfelder, Y.R. Coppens, T. Frisson, I. Strauch, Philipp Fleischmann, A. Baghdasaryan, A. Rostovtsev, Leif J. Jönsson, Carl Gwilliam, Yves Sirois, O. Behrendt, S. Vinokurova, R. Lemrani, P. Kostka, A. Specka, T. Klimkovich, Dirk L. Hoffmann, David South, J-P. Meyer, G. Franke, B. Vujicic, R. Oganezov, D. Utkin, J. Bähr, A. Makankine, G. Buschhorn, Matthias Ulrich Mozer, J. Turnau, Michael Schneider, A. Fedotov, Günter Flügge, J. Zalesak, R. Roosen, Wolfgang Lange, C. Niebuhr, Grzegorz Nowak, D. Ozerov, R. Weber, S. Ginzburgskaya, J. Gayler, R. Koutouev, A. Petrukhin, V. Andreev, M. Hildebrandt, Johannes Haller, Y. Soloviev, L. Lindfeld, J. E. Olsson, W. Bartel, A. D.R. Vargas Trevino, H. U. Martyn, Matthias Klein, C. Kiesling, E. E. Elsen, Ahmed Tarek Abouelfadl Mohamed, V. Lubimov, A. De Roeck, E. Tzamariudaki, A. J. Campbell, C. Wigmore, F. P. Schilling, M.-O. Boenig, John A Coughlan, B. Portheault, F. W. Büsser, K. Sedlak, Magnus Hansson, V. Jemanov, Peter Robmann, S. Mangano, Christoph Grab, E. Malinovski, Emmanuel Sauvan, K. Nankov, Roland Horisberger, V. Lendermann, A. Valkárová, V. Schröder, G. Grindhammer, Nicolas Berger, L. N. Shtarkov, I. R. Kenyon, T. Berndt, E. Perez, N. Werner, Michael R. Wessels, Natasa Raicevic, L. Goerlich, P. D. Thompson, V. Brisson, B. Leissner, S. Backovic, Vincent Boudry, D. P. C. Sankey, J. Zimmermann, R. Gerhards, A. Zhelezov, S. Baudrand, B. Stella, Adrian Perieanu, N. Keller, Martin Karlsson, Paul Newman, Zuzana Rurikova, Stefan Schmitt, A. N. Morozov, V. Yeganov, Paul Laycock, H. Lueders, D. Perez-Astudillo, M. Gregori, A. Dubak, R. Eichler, Georgios Tsipolitis, M. Fleischer, Ewelina Lobodzinska, Gerhard Brandt, Matthew Beckingham, M. Goettlich, T. Laštovička, F. Moreau, S. J. Aplin, V. Volchinski, H. Meyer, Y. Vazdik, R. Demirchyan, D. Lüke, Anna Kropivnitskaya, A. Aktas, E. Barrelet, B. Olivier, V. Chekelian, R. Felst, Xavier Janssen, J. Formánek, L. Bystritskaya, M. Peez, Stefania Xella, David Milstead, Zhen Zhang, D. Meer, E. A. De Wolf, Ch. Berger, Karlheinz Meier, H. Zohrabyan, D.P. Brown, S. Essenov, Ricardo Lopez-Fernandez, S. Baumgartner, Bogdan Povh, F. Sefkow, P. Höting, M. Jacquet, Th. Naumann, K. Gabathuler, D. Wegener, A. Usik, G. Frising, A. Rimmer, I. Herynek, D. Kant, Benno List, Katerina Lipka, E. Gabathuler, A. Knutsson, J. Garvey, Katja Krüger, Amanda R. Vest, Laurent Schoeffel, Judith Katzy, V. Tchoulakov, A. M. Fomenko, V. Efremenko, Y.H. Fleming, S. Mikocki, Sebastian M. Schmidt, C. Gerlich, C. Goyon, H-C. Schultz-Coulon, R. Pöschl, M. Urban, R. Marshall, T. Kluge, Pavel Murin, H. Grässler, Guenter Eckerlin, André Schöning, I. Milcewicz-Mika, M. Ibbotson, C. Duprel, Laurent Favart, W. Yan, J. Cvach, Ringaile Placakyte, N. Loktionova, A. Hovhannisyan, D. Traynor, C. Risler, G. Weber, U. Straumann, Anton Babaev, J. G. Contreras, I. Tsurin, P. Prideaux, P. Baranov, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, M. Ismail, P. Truöl, P. A. Smirnov, J. Wagner, B. Wessling, Juraj Bracinik, D.K. Nikitin, O. Henshaw, C. Wissing, J. Böhme, Murrough Landon, Karel Cerny, Thorsten Lux, L. Janauschek, N. Van Remortel, A. Uraev, S. Gorbounov, J. Zacek, A. Glazov, J. Scheins, K. Müller, Christian Schwanenberger, V. Korbel, Stephen Maxfield, J. Stiewe, Wolfram Erdmann, Andrew Mehta, P. Van Mechelen, N. Gogitidze, W.D. Dau, J. B. Dainton, R. D. Heuer, L. Finke, M. Ellerbrock, G. Herrera, Alexandre Lebedev, Bradley Cox, C. Werner, K. Daum, F. Tomasz, C. Pascaud, G. Knies, S. Egli, S. Ghazaryan, F. Salvaire, D. Haidt, Eram Rizvi, G. Heinzelmann, V. Dodonov, Sascha Caron, E. Wünsch, G. D. Patel, K. Wacker, N. Malden, J. V. Morris, A. Bunyatyan, Dusan Bruncko, B. Naroska, Klaus Kurt Desch, H. Henschel, J.C. Bizot, T. Greenshaw, Erika Garutti, Fabian Zomer, I. Foresti, G. Cozzika, Stefan Valkar, C. Schmitz, H.-B. Bröker, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, J. Ferencei, M. Martisikova, J. Naumann, Gero Flucke, M. Kapichine, M. Nozicka, J. Marks, B. Delcourt, Roger Wolf, T. Anthonis, Claus Kleinwort, S. Schätzel, I. Sheviakov, V. Spaskov, J. Kückens, A. B. Meyer, B. Roland, V. Nagovizin, E. E. Woehrling, Pierre Marage, I. Glushkov, Christian Veelken, O. Behnke, F. Eisele, Daniel Pitzl, A. Asmone, F. Cassol-Brunner, L. Hajduk, L. Lytkin, Cristinel Diaconu, and P. E. Reimer
Subjects: Quantum chromodynamics, Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Structure function, HERA, 01 natural sciences, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Vertex detector, Impact parameter, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: Measurements are presented of inclusive charm and beauty cross sections in e$^+$p collisions at HERA for values of photon virtuality Q$^2$ > 150 GeV$^2$ and of inelasticity 0.1 < y < 0.7. The charm and beauty fractions are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the H1 vertex detector. The data are divided into four regions in Q$^2$ and Bjorken x, and values for the structure functions $F_2^{c\overline{c}}$ and $F_2^{b\overline{b}}$ are obtained. The results are found to be compatible with the predictions of perturbative quantum chromodynamics.
Published: 2005

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

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

29. Measurement of the proton structure function F2 at low Q2 in QED Compton scattering at HERA

Author: W. Yan, N. Loktionova, A. D.R. Vargas Trevino, Paul Richard Newman, Grzegorz Nowak, A. Hovhannisyan, R. Koutouev, A. Petrukhin, Laurent Schoeffel, J. Žáček, I. R. Kenyon, R. Plačakytė, I. Foresti, G. Cozzika, I. Sheviakov, S. Schmitt, M. Jacquet, I. Tsurin, H. Spitzer, Pierre Marage, S. Levonian, E. Perez, P. Höting, Hans-Christian Schultz-Coulon, Murrough Landon, Stefan Valkar, S. Schmidt, Z. Ratiani, Ewelina Lobodzinska, C. Wissing, N. Keller, K. Gabathuler, I. Milcewicz-Mika, H.-B. Bröker, Hannes Jung, R. Gerhards, V. Lendermann, V. Schröder, S. Gorbounov, Anna Kropivnitskaya, R. Felst, D. Wegener, V. Korbel, R. Eichler, J. Kennedy, V. Brisson, C. Niebuhr, Alexander Zhokin, J. Becker, Caroline Collard, J. Zálešák, S. Egli, J. V. Morris, V. Spaskov, Adrian Perieanu, C. Vallée, R. Heremans, E.-E. Woehrling, H. U. Martyn, B. Portheault, Matthias Klein, Y. Soloviev, O. Behnke, P. E. Reimer, David South, Magnus Hansson, J. Kückens, K. Wacker, A. Bunyatyan, L. Goerlich, E. E. Elsen, S. Baumgartner, V. Volchinski, Th. Naumann, P. Van Mechelen, Pavel Murin, H. Grässler, Daniel Pitzl, V. Lubimov, V. Efremenko, D. Traynor, B. Koblitz, M. Ibbotson, F. P. Schilling, Thorsten Lux, L. Janauschek, H. Meyer, R. Demirchyan, T. Laštovička, N. Van Remortel, R. D. Heuer, A. Asmone, Xavier Janssen, I. Morozov, J. Garvey, F. Cassol-Brunner, L. Hajduk, C. Werner, J. Scheins, G. G. Winter, D. Lüke, E. Barrelet, Leif J. Jönsson, Benoit Roland, F. Eisele, Z. Rurikova, E. Gabathuler, L. Bystritskaya, S. Mikocki, G. Thompson, E. Wünsch, D.P. Brown, M. Urban, J. Haller, H. Zohrabyan, R. Oganezov, A. M. Fomenko, V. Chekelian, K. Sedlák, Dave Sankey, T. Klimkovich, W.D. Dau, J. B. Dainton, K. Rybicki, A. Schöning, Judith Katzy, E. A. De Wolf, Ch. Berger, John A Coughlan, C. Gerlich, Karlheinz Meier, R. Roosen, M.-O. Boenig, A. Makankine, Laurent Favart, L. N. Shtarkov, Christoph Grab, J. Wagner, V. Nagovizin, K. Daum, G. Buschhorn, B. Leißner, M. Peez, Y.H. Fleming, T. Anthonis, F. Tomasz, B. Stella, G. D. Patel, J. Kroseberg, S. Mangano, D.P. Johnson, D. Ozerov, J. Böhme, H. Henschel, J.C. Bizot, Karel Cerny, C. Duprel, G. Knies, A. Uraev, N. Malden, F. Zomer, M. Beckingham, R. Weber, Nicolas Berger, Matthias Ulrich Mozer, A. Lebedev, Gero Flucke, V. Andreev, C. Risler, A. Fedotov, Günter Flügge, D. Haidt, L. Lytkin, Cristinel Diaconu, Georgios Tsipolitis, M. Fleischer, M. Kapichine, M. Nozicka, I. Herynek, C. Kiesling, Dusan Bruncko, Eram Rizvi, G. Heinzelmann, A. De Roeck, V. Dodonov, Martin Erdmann, E. Tzamariudaki, A. J. Campbell, S. Michine, J. Formánek, C. Gwilliam, A. Rostovtsev, B. Naroska, J-P. Meyer, B. Delcourt, Yves Sirois, J. Cvach, Bogdan Povh, F. Sefkow, G. Ossoskov, Rainer Stamen, T. Kluge, T. Greenshaw, Erika Garutti, M. Ismail, David Milstead, P. A. Smirnov, P. Baranov, G. Franke, Wolfram Erdmann, B. List, Peter Schleper, S. Schätzel, J. Ferencei, M. Martisikova, J. Naumann, C. Pascaud, J. Marks, Guenter Eckerlin, A. Nikiforov, A. Dubak, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Claus Kleinwort, Sergey Rusakov, P. Truöl, D. Utkin, B. Reisert, J. Bähr, S. Ghazaryan, Y. Vazdik, P.D. Thompson, M. Schneider, S. Caron, Stefania Xella, D.K. Nikitin, B. Wessling, R. Pöschl, O. Henshaw, R. Marshall, K. Müller, Christian Schwanenberger, Stephen Maxfield, M. Hildebrandt, J. Stiewe, Andrew Mehta, J. Bracinik, N. Gogitidze, Anton Babaev, J. G. Contreras, A. Mohamed, M. Wessels, M. Ellerbrock, G. Herrera, Bradley Cox, R. Wolf, Klaus Desch, A. Rimmer, A. Knutsson, Zhen Zhang, Ricardo Lopez-Fernandez, D. Hoffmann, Andreas Meyer, D. Meer, A. Usik, G. Frising, J. E. Olsson, W. Bartel, F. W. Büsser, T. Berndt, Natasa Raicevic, Vincent Boudry, A. N. Morozov, M. Gregori, L. Lindfeld, G. Weber, U. Straumann, V. Jemanov, V. Yeganov, A. Aktas, Y. R. Coppens, F. Moreau, B. Olivier, D. Kant, Katerina Lipka, K. H. Hiller, R. C. W. Henderson, V. Tchoulakov, I. Strauch, Philipp Fleischmann, A. Vest, O. Behrendt, S. Vinokurova, Peter Robmann, R. Lemrani, P. Kostka, J. Turnau, A. Specka, S. Backovic, H. Lueders, Wolfgang Lange, J. Gayler, C. Veelken, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, J. Dingfelder, N. Werner, T. Kuhr, Roland Horisberger, A. Valkárová, and Martin Karlsson
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Photon, Proton, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Detector, Structure function, Compton scattering, HERA, 01 natural sciences, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: The proton structure function F-2(x, Q(2)) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access the kinematic range of very low virtualities of the exchanged photon, Q(2), down to 0.5 GeV2, and Bjorken x up to similar to 0.06, a region which has not been covered previously by inclusive measurements at HERA. The results are in agreement with the measurements from fixed target lepton-nucleon scattering experiments. (C) 2004 Published by Elsevier B.V.
Published: 2004

30. Forward $\pi^\circ$ production and associated transverse energy flow in deep-inelastic scattering at HERA

Author: V. Nagovizin, Leif J. Jönsson, A. Makankine, G. Buschhorn, D. Ozerov, E. E. Woehrling, V. Panassik, Murrough Landon, Grzegorz Nowak, Pierre Marage, R. Koutouev, A. Petrukhin, M. Davidsson, R. Eichler, H. U. Martyn, Christian Veelken, P. Höting, Matthias Klein, S. Gorbounov, J. Rauschenberger, Michael R. Wessels, V. Lubimov, Paul Laycock, V. Brisson, Amanda R. Vest, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, F. Eisele, S. Vassiliev, Jan Hladky, V. Andreev, A. D.R. Vargas Trevino, Dusan Bruncko, P. Van Mechelen, Laurent Schoeffel, Sascha Caron, N. Werner, E. Wünsch, I. Strauch, B. Leiner, Roland Horisberger, A. Valkárová, V. Jemanov, B. Naroska, Martin Karlsson, Dave Sankey, A. Beglarian, P. Dixon, J. Wagner, T. Kuhr, Philipp Fleischmann, Daniel Pitzl, D.P. Brown, E. Perez, Jean-Arcady Meyer, T. Greenshaw, Yves Sirois, J. Böhme, T. Laštovička, J. Formánek, A. Asmone, N. Delerue, M. zur Nedden, F. Cassol-Brunner, J.P. Phillips, L. Hajduk, Juergen Kroseberg, R. Gerhards, Dirk L. Hoffmann, G. Franke, E. Barrelet, G. D. Patel, K. Wacker, O. Behnke, K. Daum, Wolfgang Lange, A. Uraev, E. A. De Wolf, Ch. Berger, L. N. Shtarkov, J. Cvach, Anton Babaev, D. Traynor, J. Gayler, M. Hildebrandt, Georgios Tsipolitis, M. Urban, J. Ferencei, J. G. Contreras, J. Naumann, J.C. Bizot, P. E. Reimer, M. Fleischer, Karlheinz Meier, N. Malden, F. Tomasz, C. Risler, Angela Mehta, G. Knies, J. Marks, K. Gabathuler, Sebastian M. Schmidt, L. Bystritskaya, Claus Kleinwort, Zhen Zhang, G. G. Winter, I. Herynek, Fabian Zomer, Ricardo Lopez-Fernandez, David Schmidt, A. Aktas, P. A. Smirnov, Pavel Murin, Paul Newman, D. Wegener, Matthew Jones, Caroline Collard, B. Wessling, B. Olivier, H. Grässler, P. D. Thompson, L. Goerlich, M. Ibbotson, I. Sheviakov, S. Baumgartner, I. Foresti, G. Cozzika, C. Niebuhr, Bogdan Povh, F. Sefkow, S. Luders, Christian Johnson, Peter Robmann, Stefan Valkar, F. Keil, Denis Johnson, H.-B. Bröker, Hannes Jung, J. V. Morris, Alexander Zhokin, Laurent Favart, J. Zacek, T. Anthonis, A. Usik, M. Jacquet, B. Reisert, Graham Thompson, V. Efremenko, G. Weber, Martin Erdmann, T. Kluge, F. Niebergall, B. Koblitz, Ewelina Lobodzinska, Matthew Beckingham, U. Straumann, G. Frising, A. Bunyatyan, J. Becker, C. Vallée, H. Spitzer, V. Grabski, Benno List, S. Mikocki, Hans-Christian Schultz-Coulon, Beate Heinemann, Peter Truoel, S. Levonian, L. Lytkin, Anna Kropivnitskaya, S. Michine, V. Chekelian, R. Felst, J. Kueckens, D. Kant, I. Milcewicz-Mika, V. Spaskov, Guenter Eckerlin, Gero Flucke, A. Vichnevski, M. Kapichine, M. Nozicka, Cristinel Diaconu, J. Kennedy, V. Korbel, S. Backovic, Juraj Bracinik, André Schöning, Rainer Stamen, Y.R. Coppens, J. E. Olsson, A. Koutov, B. Delcourt, Johannes Haller, F. Moreau, K. Müller, Christian Schwanenberger, H. Lueders, A. B. Meyer, Judith Katzy, W. Erdmann, C. Pascaud, S. Egli, Stephen Maxfield, W. Bartel, J. Stiewe, S. Schätzel, J. Scheins, Alexandre Lebedev, M. Hilgers, C. Werner, Y.H. Fleming, J. Garvey, D. Haidt, A. M. Fomenko, W.D. Dau, J. B. Dainton, David South, J. D. Dowell, C. Gerlich, N. Gogitidze, T. J. Sloan, Eram Rizvi, G. Heinzelmann, V. Lendermann, V. Schröder, Y. Soloviev, V. Dodonov, C. Duprel, F. W. Büsser, W. Braunschweig, M. Ellerbrock, G. Herrera, Bradley Cox, I. R. Kenyon, T. Berndt, S. Ghazaryan, A. Burrage, Natasa Raicevic, F. P. Schilling, Vincent Boudry, S. D. Kolya, A. N. Morozov, R. Pöschl, V. Volchinski, R. Marshall, H. Henschel, K. Rybicki, J. Gassner, H. Meyer, R. Demirchyan, M. Winde, Christoph Grab, Xavier Janssen, B. M. Waugh, D.K. Nikitin, K. H. Hiller, R. C. W. Henderson, O. Henshaw, Jochen Dingfelder, R. Weber, A. Specka, C. Wissing, M.-O. Boenig, S. Mangano, S. Ferron, L. Janauschek, A. Rostovtsev, J. Bähr, A. Fedotov, Günter Flügge, C. Kiesling, A. De Roeck, E. Tzamariudaki, A. J. Campbell, K. Sedlak, Th. Naumann, E. Gabathuler, D. Meer, O. Behrendt, R. Lemrani, P. Kostka, J. Turnau, Michael Schneider, A. Dubak, Y. Vazdik, D. Lüke, M. Peez, David Milstead, A. Astvatsatourov, D. Clarke, John A Coughlan, B. Stella, N. Keller, Stefan Schmitt, J. Zalesak, R. Roosen, E. E. Elsen, R. Heremans, J. Martyniak, N. Loktionova, A. Hovhannisyan, I. Tsurin, M. C. Cousinou, J.E. Turney, P. Baranov, Peter Schleper, P.J.W. Faulkner, A.S. Belousov, and Sergey Rusakov
Subjects: Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), Proton, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, Parton, HERA, Deep inelastic scattering, 01 natural sciences, Nuclear physics, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010303 astronomy & astrophysics, Engineering (miscellaneous)
Abstract: Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x \approx 4.10^-5 which give rise to high transverse momentum pi^0 mesons are studied with the H1 experiment at HERA. The inclusive cross section for pi^0 mesons produced at small angles with respect to the proton remnant (the forward region) is presented as a function of the transverse momentum and energy of the pi^0 and of the four-momentum transfer Q^2 and Bjorken-x. Measurements are also presented of the transverse energy flow in events containing a forward pi^0 meson. Hadronic final state calculations based on QCD models implementing different parton evolution schemes are confronted with the data.
Published: 2004

31. Muon pair production in ep collisions at HERA

Author: Wolfgang Lange, Laurent Schoeffel, J. Gayler, Paul Laycock, E. Malinovski, Emmanuel Sauvan, J. C. Bizot, Murrough Landon, Max Klein, C. Niebuhr, G. Grindhammer, N. Keller, J. Dingfelder, S. Egli, Y. Soloviev, V. Lendermann, V. Schröder, P. D. Thompson, S. Levonian, A. B. Meyer, K. Meier, Dusan Bruncko, S. Mangano, F. Eisele, H. U. Martyn, K. Sedlák, N. Werner, M. Ismail, David Milstead, S. Gorbounov, Y.R. Coppens, B. Naroska, J. B. Dainton, F. Moreau, J. Hladký, V. Korbel, Wolfram Erdmann, T. Kluge, J. E. Olsson, T. Greenshaw, J. G. Contreras, Pierre Marage, T. Kuhr, P. A. Smirnov, F. P. Schilling, A. Makankine, G. Buschhorn, D. Ozerov, R. Weber, J. V. Morris, S. D. Kolya, P. Van Mechelen, S. Michine, A. Bunyatyan, F. W. Büsser, J. Žáček, J. Haller, D. Kant, Stephen Maxfield, J. Ferencei, M. Martisikova, C. Veelken, R. D. Heuer, I. Morozov, L. Bystritskaya, M.-O. Boenig, P. Murín, J. Garvey, J. Scheins, C. Johnson, H. Zohrabyan, Hans-Christian Schultz-Coulon, J. Stiewe, A. Vichnevski, I. R. Kenyon, T. Berndt, C. Risler, A. M. Fomenko, J. D. Dowell, D.P. Brown, S. Ghazaryan, Alexandre Lebedev, W.D. Dau, B. Leißner, Natasa Raicevic, Vincent Boudry, K. Rybicki, Christoph Grab, D. Meer, J. Marks, Andrew Mehta, J. Bracinik, Claus Kleinwort, V. Lubimov, I. Sheviakov, S. Schmitt, C. Werner, D. Haidt, F. Tomasz, C. Gerlich, G. Thompson, O. Behnke, Martin Erdmann, S. Lüders, A. N. Morozov, Nicolas Berger, C. Berger, J. Formánek, M. Gregori, N. Gogitidze, W. Bartel, R. Eichler, G. Knies, S. Caron, T. J. Sloan, A. J. Campbell, B. E. Cox, K. H. Hiller, R. C. W. Henderson, Eram Rizvi, R. Pöschl, A. Rostovtsev, I. Strauch, Philipp Fleischmann, Peter Robmann, M. Winde, P. Baranov, M. Hildebrandt, Roland Horisberger, G. Heinzelmann, V. Dodonov, Daniel Pitzl, D. Traynor, M. Jacquet, A. Asmone, H. Grässler, M. Ibbotson, V. Spaskov, J. Kroseberg, Judith Katzy, H. Henschel, A. Valkárová, L. N. Shtarkov, F. Cassol-Brunner, K. Gabathuler, D.K. Nikitin, O. Henshaw, Paul Newman, D. Wegener, V. Grabski, W. Braunschweig, F. Zomer, J. Kückens, Y.H. Fleming, H. Spitzer, Rainer Stamen, L. Hajduk, C. Wissing, Laurent Favart, T. Anthonis, M. Wessels, D. South, E. Wünsch, C. Duprel, M. Urban, Adrian Perieanu, Dave Sankey, N. Delerue, M. Ellerbrock, V. Andreev, A. Specka, Thorsten Lux, L. Janauschek, Martin Karlsson, Gero Flucke, R. Marshall, B. Reisert, J. Bähr, G. Herrera, B. Waugh, G. Weber, M. C. Cousinou, U. Straumann, M. Kapichine, M. Nozicka, G. D. Patel, V. Jemanov, S. Backovic, B. Wessling, Thomas Naumann, V. Efremenko, B. Koblitz, V. Chekelian, D.P. Johnson, V. Nagovizin, N. Malden, Georgios Tsipolitis, H. Lueders, V. Volchinski, A. Vest, O. Behrendt, E. E. Woehrling, S. Vinokurova, M. Fleischer, S. Mikocki, J. Wagner, Yves Sirois, R. Lemrani, H. Meyer, Klaus Desch, J. Böhme, R. Demirchyan, P. Kostka, Karel Cerny, A. Uraev, G. Franke, J. Turnau, L. Lytkin, Cristinel Diaconu, B. List, A. Knutsson, A. Babaev, A. Aktas, S. Schätzel, Bogdan Povh, B. Olivier, Xavier Janssen, F. Sefkow, G. Ossoskov, I. Milcewicz, Leif J. Jönsson, K. Müller, Christian Schwanenberger, Grzegorz Nowak, R. Koutouev, A. Petrukhin, Zhen Zhang, J-P. Meyer, Ricardo Lopez-Fernandez, I. Foresti, S. Baumgartner, G. Cozzika, C. Pascaud, D. Hoffmann, Guenter Eckerlin, André Schöning, A. Usik, Stefan Valkar, G. Frising, J. Cvach, A. Belousov, Peter Schleper, H.-B. Bröker, Hannes Jung, J. Kennedy, Alexander Zhokin, J. Becker, C. Vallée, P.J.W. Faulkner, V. Brisson, R. Heremans, S. Vassiliev, Sergey Rusakov, P. Truöl, W. Yan, C. Collard, T. Laštovička, N. Loktionova, J. Gassner, A. Hovhannisyan, E. Barrelet, Z. Rurikova, I. Tsurin, B. Portheault, E. A. De Wolf, J. Zalesak, E. E. Elsen, J. Martyniak, R. Roosen, J. A. Coughlan, I. Herynek, B. Delcourt, B. Stella, K. Daum, J. Rauschenberger, A. D.R. Vargas Trevino, E. Perez, R. Gerhards, P. E. Reimer, G. G. Winter, J. Naumann, L. Goerlich, P. Höting, S. Schmidt, Ewelina Lobodzinska, Anna Kropivnitskaya, R. Felst, M. Beckingham, Matthias Ulrich Mozer, A. Fedotov, Günter Flügge, C. Kiesling, A. De Roeck, E. Tzamariudaki, E. Gabathuler, K. Wacker, A. Dubak, Y. Vazdik, D. Lüke, M. Schneider, M. Peez, H1 Collaboration, 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), H1, 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), and Damoiseaux, Magali
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Muon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, FOS: Physical sciences, HERA, Electron, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pair production, Full data, 0103 physical sciences, Transverse momentum, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Cross sections for the production of two isolated muons up to high di-muon masses are measured in ep collisions at HERA with the H1 detector in a data sample corresponding to an integrated luminosity of 71 pb-1 at a centre of mass energy of √s=319 GeV. The results are in good agreement with Standard Model predictions, the dominant process being photon-photon interactions. Additional muons or electrons are searched for in events with two high transverse momentum muons using the full data sample corresponding to 114 pb-1, where data at √s=301 GeV and √s=319 GeV are combined. Both the di-lepton sample and the tri-lepton sample agree well with the predictions. © 2004 Published by Elsevier B.V., 0, DESY-03-159 / hep-ex/0311015, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2004

32. Measurement of the ratio using event shape variables

Author: D. Buskulic, I. De Bonis, D. Decamp, P. Ghez, C. Goy, J. P. Lees, M. N. Minard, B. Pietrzyk, F. Ariztizabal, P. Comas, J. M. Crespo, M. Delfino, I. Efthymiopoulos, E. Fernandez, M. Fernandez Bosman, V. Gaitan, L.l. Garrido, T. Mattison, A. Pacheco, C. Padilla, A. Pascual, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chai, H. Hu, D. Huang, X. Huang, J. Lin, T. Wang, Y. Xie, D. Xie, D. Xu, R. Xu, J. Zhang, L. Zhang, W. Zhao, E. Blucher, G. Bonvicini, J. Boudreau, D. Casper, H. Drevermann, R. W. Forty, G. Ganis, C. Gay, R. Hagelberg, J. Harvey, J. Hilgart, R. Jacobsen, B. Jost, J. Knobloch, I. Lehraus, T. Lohse, M. Maggi, C. Markou, M. Martinez, P. Mato, H. Meinhard, A. Minten, A. Miotto, R. Miquel, H. G. Moser, P. Palazzi, J. R. Pater, J. A. Perlas, J. F. Pusztaszeri, F. Ranjard, G. Redlinger, L. Rolandi, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, F. Sefkow, W. Tejessy, I. R. Tomalin, R. Veenhof, H. Wachsmuth, S. Wasserbaech, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin Otwinowska, R. El Fellous, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, J. C. Montret, D. Pallin, P. Perret, F. Podlyski, J. Proriol, F. Prulhière, F. Saadi, T. Fearnley, J. B. Hansen, J. D. Hansen, J. R. Hansen, P. H. Hansen, R. Møllerud, B. S. Nilsson, A. Kyriakis, E. Simopoulou, I. Siotis, A. Vayaki, K. Zachariadou, J. Badier, A. Blondel, G. Bonneaud, J. C. Brient, G. Fouque, S. Orteu, A. Rougé, M. Rumpf, R. Tanaka, M. Verderi, H. Videau, D. J. Candlin, M. I. Parsons, E. Veitch, E. Focardi, L. Moneta, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, D. Levinthal, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, L. Passalacqua, M. Pepe Altarelli, P. Picchi, P. Colrain, I. ten Have, J. G. Lynch, W. Maitland, W. T. Morton, C. Raine, P. Reeves, J. M. Scarr, K. Smith, M. G. Smith, A. S. Thompson, R. M. Turnbull, B. Brandl, O. Braun, C. Geweniger, P. Hanke, V. Hepp, E. E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, R. Beuselinck, D. M. Binnie, W. Cameron, M. Cattaneo, D. J. Colling, P. J. Dornan, A. M. Greene, J. F. Hassard, N. M. Lieske, A. Moutoussi, J. Nash, S. Patton, D. G. Payne, M. J. Phillips, G. San Martin, J. K. Sedgbeer, A. G. Wright, P. Girtler, D. Kuhn, G. Rudolph, R. Vogl, C. K. Bowdery, T. J. Brodbeck, A. J. Finch, F. Foster, G. Hughes, D. Jackson, N. R. Keemer, M. Nuttall, A. Patel, T. Sloan, S. W. Snow, E. P. Whelan, K. Kleinknecht, J. Raab, B. Renk, H. G. Sander, H. Schmidt, F. Steeg, S. M. Walther, R. Wanke, B. Wolf, A. M. Bencheikh, C. Benchouk, A. Bonissent, J. Carr, P. Coyle, J. Drinkard, F. Etienne, D. Nicod, S. Papalexiou, P. Payre, L. Roos, D. Rousseau, P. Schwemling, M. Talby, S. Adlung, R. Assmann, C. Bauer, W. Blum, D. Brown, P. Cattaneo, B. Dehning, H. Dietl, F. Dydak, M. Frank, A. W. Halley, K. Jakobs, J. Lauber, G. Lütjens, G. Lutz, W. Männer, R. Richter, J. Schröder, A. S. Schwarz, R. Settles, H. Seywerd, U. Stierlin, U. Stiegler, R. S.t. Denis, G. Wolf, R. Alemany, J. Boucrot, O. Callot, A. Cordier, M. Davier, L. Duflot, J. F. Grivaz, P.h. Heusse, D. E. Jaffe, P. Janot, D. W. Kim, F. Le Diberder, J. Lefrançois, A. M. Lutz, M. H. Schune, J. J. Veillet, I. Videau, Z. Zhang, D. Abbaneo, G. Bagliesi, G. Batignani, U. Bottigli, C. Bozzi, G. Calderini, M. Carpinelli, M. A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, F. Forti, A. Giassi, M. A. Giorgi, A. Gregorio, F. Ligabue, A. Lusiani, E. B. Mannelli, P. S. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, P. Spagnolo, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P. G. Verdini, J. Walsh, A. P. Betteridge, Y. Gao, M. G. Green, P. V. March, L.l. M. Mir, T. Medcalf, I. S. Quazi, J. A. Strong, L. R. West, D. R. Botterill, R. W. Clifft, T. R. Edgecock, S. Haywood, P. R. Norton, J. C. Thompson, B. Bloch Devaux, P. Colas, H. Duarte, S. Emery, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, B. Marx, P. Perez, J. Rander, J. F. Renardy, A. Rosowsky, A. Roussarie, J. P. Schuller, J. Schwindling, D. Si Mohand, B. Vallage, R. P. Johnson, A. M. Litke, G. Taylor, J. Wear, J. G. Ashman, W. Babbage, C. N. Booth, C. Buttar, S. Cartwright, F. Combley, I. Dawson, L. F. Thompson, E. Barberio, A. Böhrer, S. Brandt, G. Cowan, C. Grupen, G. Lutters, F. Rivera, U. Schäfer, L. Smolik, L. Bosisio, R. Della Marina, G. Giannini, B. Gobbo, F. Ragusa, L. Bellantoni, W. Chen, J. S. Conway, Z. Feng, D. P. S. Ferguson, Y. S. Gao, J. Grahl, J. L. Harton, O. J. Hayes, J. M. Nachtman, Y. B. Pan, Y. Saadi, M. Schmitt, I. Scott, V. Sharma, Z. H. Shi, J. D. Turk, A. M. Walsh, F. V. Weber, Sau Lan Wu, X. Wu, M. Zheng, G. Zobernig, D'ETTORRE PIAZZOLI, BENEDETTO, D., Buskulic, I., De Boni, D., Decamp, P., Ghez, C., Goy, J. P., Lee, M. N., Minard, B., Pietrzyk, D'ETTORRE PIAZZOLI, Benedetto, F., Ariztizabal, P., Coma, J. M., Crespo, M., Delfino, I., Efthymiopoulo, E., Fernandez, M., Fernandez Bosman, V., Gaitan, Garrido, L. l., T., Mattison, A., Pacheco, C., Padilla, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Chai, H., Hu, D., Huang, X., Huang, J., Lin, T., Wang, Y., Xie, D., Xie, D., Xu, R., Xu, J., Zhang, L., Zhang, W., Zhao, E., Blucher, G., Bonvicini, J., Boudreau, D., Casper, H., Drevermann, R. W., Forty, G., Gani, C., Gay, R., Hagelberg, J., Harvey, J., Hilgart, R., Jacobsen, B., Jost, J., Knobloch, I., Lehrau, T., Lohse, M., Maggi, C., Markou, M., Martinez, P., Mato, H., Meinhard, A., Minten, A., Miotto, R., Miquel, H. G., Moser, P., Palazzi, J. R., Pater, J. A., Perla, J. F., Pusztaszeri, F., Ranjard, G., Redlinger, L., Rolandi, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, F., Sefkow, W., Tejessy, I. R., Tomalin, R., Veenhof, H., Wachsmuth, S., Wasserbaech, W., Wiedenmann, T., Wildish, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, F., Podlyski, J., Proriol, F., Prulhière, F., Saadi, T., Fearnley, J. B., Hansen, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, A., Kyriaki, E., Simopoulou, I., Sioti, A., Vayaki, K., Zachariadou, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, S., Orteu, A., Rougé, M., Rumpf, R., Tanaka, M., Verderi, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, E., Focardi, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, D., Levinthal, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, F., Bossi, P., Campana, G., Capon, F., Cerutti, V., Chiarella, B., D'Ettorre Piazzoli, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Colrain, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, P., Reeve, J. M., Scarr, K., Smith, M. G., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, A. M., Greene, J. F., Hassard, N. M., Lieske, A., Moutoussi, J., Nash, S., Patton, D. G., Payne, M. J., Phillip, G., San Martin, J. K., Sedgbeer, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, R., Vogl, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, K., Kleinknecht, J., Raab, B., Renk, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, R., Wanke, B., Wolf, A. M., Bencheikh, C., Benchouk, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, D., Nicod, S., Papalexiou, P., Payre, L., Roo, D., Rousseau, P., Schwemling, M., Talby, S., Adlung, R., Assmann, C., Bauer, W., Blum, D., Brown, P., Cattaneo, B., Dehning, H., Dietl, F., Dydak, M., Frank, A. W., Halley, K., Jakob, J., Lauber, G., Lütjen, G., Lutz, W., Männer, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, H., Seywerd, U., Stierlin, U., Stiegler, Denis, R. S. t., G., Wolf, R., Alemany, J., Boucrot, O., Callot, A., Cordier, M., Davier, L., Duflot, J. F., Grivaz, Heusse, P. h., D. E., Jaffe, P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, D., Abbaneo, G., Bagliesi, G., Batignani, U., Bottigli, C., Bozzi, G., Calderini, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, F., Forti, A., Giassi, M. A., Giorgi, A., Gregorio, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Rizzo, G., Sanguinetti, P., Spagnolo, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, A. P., Betteridge, Y., Gao, M. G., Green, P. V., March, Mir, L. l. M., T., Medcalf, I. S., Quazi, J. A., Strong, L. R., West, D. R., Botterill, R. W., Clifft, T. R., Edgecock, S., Haywood, P. R., Norton, J. C., Thompson, B., Bloch Devaux, P., Cola, H., Duarte, S., Emery, W., Kozanecki, E., Lançon, M. C., Lemaire, E., Locci, B., Marx, P., Perez, J., Rander, J. F., Renardy, A., Rosowsky, A., Roussarie, J. P., Schuller, J., Schwindling, D., Si Mohand, B., Vallage, R. P., Johnson, A. M., Litke, G., Taylor, J., Wear, J. G., Ashman, W., Babbage, C. N., Booth, C., Buttar, S., Cartwright, F., Combley, I., Dawson, L. F., Thompson, E., Barberio, A., Böhrer, S., Brandt, G., Cowan, C., Grupen, G., Lutter, F., Rivera, U., Schäfer, L., Smolik, L., Bosisio, R., Della Marina, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, W., Chen, J. S., Conway, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, O. J., Haye, J. M., Nachtman, Y. B., Pan, Y., Saadi, M., Schmitt, I., Scott, V., Sharma, Z. H., Shi, J. D., Turk, A. M., Walsh, F. V., Weber, Sau Lan, Wu, X., Wu, M., Zheng, and G., Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Hadron, Elementary particle, 01 natural sciences, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, ALEPH experiment, Lepton, Bar (unit), Event (probability theory)
Abstract: The branching fraction of Z → b b relative to all hadronic decays of the Z has been measured using event shape variables to preferentially select Z → b b events. The method chosen applies a combination of shape discriminators and the selection of high transverse momentum leptons to event hemispheres. From a sample of 440 000 hadronic Z decays collected with the ALEPH detector at LEP, the ration Γ b b Γ had = 0.228±0.005( stat. )±0.005( syst. ) is measured.
Published: 1993

33. Combined measurement and QCD analysis of the inclusive e(+/-)p scattering cross sections at HERA

Author: F. D. AARON, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, M. ALDAYA MARTIN, C. ALEXA, V. ANDREEV, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, B. ANTUNOVIC, M. ARNEODO, V. AUSHEV, O. BACHYNSKA, S. BACKOVIC, A. BAGHDASARYAN, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, E. BARRELET, W. BARTEL, D. BARTSCH, K. BEGZSUREN, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BELOUSOV, A. BERTOLIN, S. BHADRA, M. BINDI, J. C. BIZOT, C. BLOHM, T. BOLD, E. G. BOOS, M. BORODIN, K. BORRAS, D. BOSCHERINI, D. BOT, V. BOUDRY, S. K. BOUTLE, I. BOZOVIC JELISAVCIC, J. BRACINIK, G. BRANDT, M. BRINKMANN, V. BRISSON, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRUMMER, D. BRUNCKO, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, A. BUNYATYAN, G. BUSCHHORN, P. J. BUSSEY, J. M. BUTTERWORTH, B. BYLSMA, L. BYSTRITSKAYA, A. CALDWELL, A. J. CAMPBELL, K. B. CANTUN AVILA, M. CAPUA, R. CARLIN, C. D. CATTERALL, K. CERNY, V. CERNY, S. CHEKANOV, V. CHEKELIAN, A. CHOLEWA, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, J. G. CONTRERAS, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, J. A. COUGHLAN, G. COZZIKA, J. CVACH, G. D'AGOSTINI, J. B. DAINTON, F. DAL CORSO, K. DAUM, M. DEAK, J. DE FAVEREAU, B. DELCOURT, M. DEL DEGAN, J. DEL PESO, J. DELVAX, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, E. A. DE WOLF, C. DIACONU, D. DOBUR, V. DODONOV, B. A. DOLGOSHEIN, A. DOSSANOV, A. T. DOYLE, V. DRUGAKOV, A. DUBAK, L. S. DURKIN, S. DUSINI, G. ECKERLIN, V. EFREMENKO, S. EGLI, Y. EISENBERG, A. ELISEEV, E. ELSEN, P. F. ERMOLOV, A. ESKREYS, A. FALKIEWICZ, S. FANG, L. FAVART, S. FAZIO, A. FEDOTOV, R. FELST, J. FELTESSE, J. FERENCEI, J. FERRANDO, M. I. FERRERO, J. FIGIEL, D. J. FISCHER, M. FLEISCHER, A. FOMENKO, M. FORREST, B. FOSTER, S. FOURLETOV, E. GABATHULER, A. GALAS, E. GALLO, A. GARFAGNINI, J. GAYLER, A. GEISER, S. GHAZARYAN, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, A. GLAZOV, I. GLUSHKOV, L. GOERLICH, N. GOGITIDZE, Y.U. A. GOLUBKOV, P. GOTTLICHER, M. GOUZEVITCH, C. GRAB, I. GRABOWSKA BOLD, J. GREBENYUK, T. GREENSHAW, I. GREGOR, B. R. GRELL, G. GRIGORESCU, G. GRINDHAMMER, G. GRZELAK, C. GWENLAN, T. HAAS, S. HABIB, D. HAIDT, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, C. HELEBRANT, R. C. W. HENDERSON, E. HENNEKEMPER, H. HENSCHEL, M. HERBST, G. HERRERA, M. HILDEBRANDT, E. HILGER, K. H. HILLER, D. HOCHMAN, D. HOFFMANN, U. HOLM, R. HORI, R. HORISBERGER, K. HORTON, T. HREUS, A. HUTTMANN, G. IACOBUCCI, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, M. JACQUET, H. P. JAKOB, X. JANSSEN, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, L. JONSSON, A. W. JUNG, H. JUNG, M. JUNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, M. KAPICHINE, U. KARSHON, F. KARSTENS, I. I. KATKOV, J. KATZY, M. KAUR, P. KAUR, I. R. KENYON, A. KERAMIDAS, L. A. KHEIN, C. KIESLING, J. Y. KIM, D. KISIELEWSKA, S. KITAMURA, R. KLANNER, M. KLEIN, U. KLEIN, C. KLEINWORT, T. KLUGE, A. KNUTSSON, E. KOFFEMAN, R. KOGLER, D. KOLLAR, P. KOOIJMAN, I.E. KOROL, I. A. KORZHAVINA, P. KOSTKA, A. KOTANSKI, U. KOTZ, H. KOWALSKI, M. KRAEMER, K. KRASTEV, J. KRETZSCHMAR, A. KROPIVNITSKAYA, K. KRUGER, P. KULINSKI, O. KUPRASH, K. KUTAK, M. KUZE, V. A. KUZMIN, M. P. J. LANDON, W. LANGE, G. LASTOVICKA MEDIN, P. LAYCOCK, A. LEBEDEV, A. LEE, G. LEIBENGUTH, V. LENDERMANN, B. B. LEVCHENKO, S. LEVONIAN, A. LEVY, G. LI, V. LIBOV, S. LIMENTANI, T. Y. LING, K. LIPKA, A. LIPTAJ, M. LISOVYI, B. LIST, J. LIST, E. LOBODZINSKA, W. LOHMANN, B. LOHR, E. LOHRMANN, J. H. LOIZIDES, N. LOKTIONOVA, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, R. LOPEZ FERNANDEZ, V. LUBIMOV, J. LUKASIK, O. Y.U. LUKINA, P. LUZNIAK, J. MAEDA, S. MAGILL, A. MAKANKINE, I. MAKARENKO, E. MALINOVSKI, J. MALKA, R. MANKEL, P. MARAGE, A. MARGOTTI, G. MARINI, L.L. MARTI, J. F. MARTIN, H. U. MARTYN, A. MASTROBERARDINO, T. MATSUMOTO, M. C. K. MATTINGLY, S. J. MAXFIELD, A. MEHTA, I. A. MELZER PELLMANN, A. B. MEYER, H. MEYER, J. MEYER, S. MIGLIORANZI, S. MIKOCKI, I. MILCEWICZ MIKA, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, F. MOREAU, A. MOROZOV, J. D. MORRIS, J. V. MORRIS, M. U. MOZER, M. MUDRINIC, K. MULLER, P. MURIN, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, T.H. NAUMANN, P. R. NEWMAN, D. NICHOLASS, C. NIEBUHR, A. NIGRO, A. NIKIFOROV, D. NIKITIN, Y. NING, U. NOOR, D. NOTZ, G. NOWAK, K. NOWAK, R. J. NOWAK, M. NOZICKA, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, B. OLIVIER, K. OLKIEWICZ, J. E. OLSSON, Y.U. ONISHCHUK, S. OSMAN, O. OTA, D. OZEROV, V. PALICHIK, I. PANAGOULIAS, M. PANDUROVIC, T.H. PAPADOPOULOU, K. PAPAGEORGIU, A. PARENTI, C. PASCAUD, G. D. PATEL, E. PAUL, J. M. PAWLAK, B. PAWLIK, O. PEJCHAL, P. G. PELFER, A. PELLEGRINO, E. PEREZ, W. PERLANSKI, H. PERREY, A. PETRUKHIN, I. PICURIC, S. PIEC, K. PIOTRZKOWSKI, D. PITZL, R. PLACAKYTE, P. PLUCINSKI, B. POKORNY, N. S. POKROVSKIY, R. POLIFKA, A. POLINI, B. POVH, A. S. PROSKURYAKOV, M. PRZYBYCIEN, V. RADESCU, A. J. RAHMAT, N. RAICEVIC, A. RASPIAREZA, A. RAVAL, T. RAVDANDORJ, D. D. REEDER, P. REIMER, B. REISERT, Z. REN, J. REPOND, Y. D. RI, E. RIZVI, A. ROBERTSON, P. ROBMANN, B. ROLAND, P. ROLOFF, E. RON, R. ROOSEN, A. ROSTOVTSEV, M. ROTARU, I. RUBINSKY, J. E. RUIZ TABASCO, Z. RURIKOVA, S. RUSAKOV, M. RUSPA, R. SACCHI, D. SALEK, A. SALII, U. SAMSON, D. P. C. SANKEY, 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. SCHONBERG, A. SCHONING, T. SCHORNER SADENIUS, H. C. SCHULTZ COULON, J. SCHWARTZ, F. SCIULLI, F. SEFKOW, R. N. SHAW WEST, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, L. N. SHTARKOV, S. SHUSHKEVICH, I. SINGH, I. O. SKILLICORN, T. SLOAN, W. SLOMINSKI, I. SMILJANIC, W. H. SMITH, V. SOLA, A. SOLANO, Y. SOLOVIEV, D. SON, P. SOPICKI, I.U. SOROKIN, V. SOSNOVTSEV, D. SOUTH, V. SPASKOV, A. SPECKA, A. SPIRIDONOV, H. STADIE, L. STANCO, Z. STAYKOVA, M. STEDER, B. STELLA, A. STERN, T. P. STEWART, A. STIFUTKIN, G. STOICEA, P. STOPA, U. STRAUMANN, S. SUCHKOV, D. SUNAR, G. SUSINNO, L. SUSZYCKI, T. SYKORA, J. SZTUK, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, V. TCHOULAKOV, J. TERRON, T. THEEDT, G. THOMPSON, P. D. THOMPSON, H. TIECKE, K. TOKUSHUKU, T. TOLL, F. TOMASZ, J. TOMASZEWSKA, T. H. TRAN, D. TRAYNOR, T. N. TRINH, P. TRUOL, I. TSAKOV, B. TSEEPELDORJ, T. TSURUGAI, M. TURCATO, J. TURNAU, T. TYMIENIECKA, K. URBAN, C. URIBE ESTRADA, A. VALKAROVA, C. VALLEE, P. VAN MECHELEN, A. VARGAS TREVINO, Y. VAZDIK, M. VAZQUEZ, A. VERBYTSKYI, V. VIAZLO, S. VINOKUROVA, N. N. VLASOV, V. VOLCHINSKI, O. VOLYNETS, M. VON DEN DRIESCH, R. WALCZAK, W. A. T. WAN ABDULLAH, D. WEGENER, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, C.H. WISSING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, E. WUNSCH, A. G. YAGUES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, J. ZACEK, J. ZALESAK, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, Z. ZHANG, B. O. ZHAUTYKOV, A. ZHOKIN, C. ZHOU, A. ZICHICHI, T. ZIMMERMANN, H. ZOHRABYAN, M. ZOLKO, F. ZOMER, D. S. ZOTKIN, R. ZUS, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, Precision Frontier, 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), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, ZEUS, Zeus (IHEF, IoP, FNWI), H1 Collaboration, ZEUS Collaboration, F.D. AARON, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, M. ALDAYA MARTIN, C. ALEXA, V. ANDREEV, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, B. ANTUNOVIC, M. ARNEODO, V. AUSHEV, O. BACHYNSKA, S. BACKOVIC, A. BAGHDASARYAN, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, E. BARRELET, W. BARTEL, D. BARTSCH, M. BASILE, K. BEGZSUREN, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BELOUSOV, A. BERTOLIN, S. BHADRA, M. BINDI, J.C. BIZOT, C. BLOHM, T. BOLD, E.G. BOOS, M. BORODIN, K. BORRAS, D. BOSCHERINI, D. BOT, V. BOUDRY, S.K. BOUTLE, I. BOZOVIC-JELISAVCIC, J. BRACINIK, G. BRANDT, M. BRINKMANN, V. BRISSON, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRUMMER, D. BRUNCKO, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, A. BUNYATYAN, G. BUSCHHORN, P.J. BUSSEY, J.M. BUTTERWORTH, B. BYLSMA, L. BYSTRITSKAYA, A. CALDWELL, A.J. CAMPBELL, K.B. CANTUN AVILA, M. CAPUA, R. CARLIN, C.D. CATTERALL, K. CERNY, V. CERNY, S. CHEKANOV, V. CHEKELIAN, A. CHOLEWA, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, J.G. CONTRERAS, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, J.A. COUGHLAN, G. COZZIKA, J. CVACH, G. D'AGOSTINI, J.B. DAINTON, F. DAL CORSO, K. DAUM, M. DEAK, J. DE FAVEREAU, B. DELCOURT, M. DEL DEGAN, J. DEL PESO, J. DELVAX, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, E.A. DE WOLF, C. DIACONU, D. DOBUR, V. DODONOV, B.A. DOLGOSHEIN, A. DOSSANOV, A.T. DOYLE, V. DRUGAKOV, A. DUBAK, L.S. DURKIN, S. DUSINI, G. ECKERLIN, V. EFREMENKO, S. EGLI, Y. EISENBERG, A. ELISEEV, E. ELSEN, P.F. ERMOLOV, A. ESKREYS, A. FALKIEWICZ, S. FANG, L. FAVART, S. FAZIO, A. FEDOTOV, R. FELST, J. FELTESSE, J. FERENCEI, J. FERRANDO, M.I. FERRERO, J. FIGIEL, D.J. FISCHER, M. FLEISCHER, A. FOMENKO, M. FORREST, B. FOSTER, S. FOURLETOV, E. GABATHULER, A. GALAS, E. GALLO, A. GARFAGNINI, J. GAYLER, A. GEISER, S. GHAZARYAN, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, A. GLAZOV, I. GLUSHKOV, L. GOERLICH, N. GOGITIDZE, YU.A. GOLUBKOV, P. GOTTLICHER, M. GOUZEVITCH, C. GRAB, I. GRABOWSKA-BOLD, J. GREBENYUK, T. GREENSHAW, I. GREGOR, B.R. GRELL, G. GRIGORESCU, G. GRINDHAMMER, G. GRZELAK, C. GWENLAN, T. HAAS, S. HABIB, D. HAIDT, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, C. HELEBRANT, R.C.W. HENDERSON, E. HENNEKEMPER, H. HENSCHEL, M. HERBST, G. HERRERA, M. HILDEBRANDT, E. HILGER, K.H. HILLER, D. HOCHMAN, D. HOFFMANN, U. HOLM, R. HORI, R. HORISBERGER, K. HORTON, T. HREUS, A. HUTTMANN, G. IACOBUCCI, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, M. JACQUET, H.P. JAKOB, X. JANSSEN, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, L. JONSSON, A.W. JUNG, H. JUNG, M. JUNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, M. KAPICHINE, U. KARSHON, F. KARSTENS, I.I. KATKOV, J. KATZY, M. KAUR, P. KAUR, I.R. KENYON, A. KERAMIDAS, L.A. KHEIN, C. KIESLING, J.Y. KIM, D. KISIELEWSKA, S. KITAMURA, R. KLANNER, M. KLEIN, U. KLEIN, C. KLEINWORT, T. KLUGE, A. KNUTSSON, E. KOFFEMAN, R. KOGLER, D. KOLLAR, P. KOOIJMAN, IE. KOROL, I.A. KORZHAVINA, P. KOSTKA, A. KOTANSKI, U. KOTZ, H. KOWALSKI, M. KRAEMER, K. KRASTEV, J. KRETZSCHMAR, A. KROPIVNITSKAYA, K. KRUGER, P. KULINSKI, O. KUPRASH, K. KUTAK, M. KUZE, V.A. KUZMIN, M.P.J. LANDON, W. LANGE, G. LASTOVICKA-MEDIN, P. LAYCOCK, A. LEBEDEV, A. LEE, G. LEIBENGUTH, V. LENDERMANN, B.B. LEVCHENKO, S. LEVONIAN, A. LEVY, G. LI, V. LIBOV, S. LIMENTANI, T.Y. LING, K. LIPKA, A. LIPTAJ, M. LISOVYI, B. LIST, J. LIST, E. LOBODZINSKA, W. LOHMANN, B. LOHR, E. LOHRMANN, J.H. LOIZIDES, N. LOKTIONOVA, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, R. LOPEZ-FERNANDEZ, V. LUBIMOV, J. LUKASIK, O.YU. LUKINA, P. LUZNIAK, J. MAEDA, S. MAGILL, A. MAKANKINE, I. MAKARENKO, E. MALINOVSKI, J. MALKA, R. MANKEL, P. MARAGE, A. MARGOTTI, G. MARINI, LL. MARTI, J.F. MARTIN, H.U. MARTYN, A. MASTROBERARDINO, T. MATSUMOTO, M.C.K. MATTINGLY, S.J. MAXFIELD, A. MEHTA, I.A. MELZER-PELLMANN, A.B. MEYER, H. MEYER, J. MEYER, S. MIGLIORANZI, S. MIKOCKI, I. MILCEWICZ-MIKA, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, F. MOREAU, A. MOROZOV, J.D. MORRIS, J.V. MORRIS, M.U. MOZER, M. MUDRINIC, K. MULLER, P. MURIN, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, TH. NAUMANN, P.R. NEWMAN, D. NICHOLASS, C. NIEBUHR, A. NIGRO, A. NIKIFOROV, D. NIKITIN, Y. NING, U. NOOR, D. NOTZ, G. NOWAK, K. NOWAK, R.J. NOWAK, M. NOZICKA, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, B. OLIVIER, K. OLKIEWICZ, J.E. OLSSON, YU. ONISHCHUK, S. OSMAN, O. OTA, D. OZEROV, V. PALICHIK, I. PANAGOULIAS, M. PANDUROVIC, TH. PAPADOPOULOU, K. PAPAGEORGIU, A. PARENTI, C. PASCAUD, G.D. PATEL, E. PAUL, J.M. PAWLAK, B. PAWLIK, O. PEJCHAL, P.G. PELFER, A. PELLEGRINO, E. PEREZ, W. PERLANSKI, H. PERREY, A. PETRUKHIN, I. PICURIC, S. PIEC, K. PIOTRZKOWSKI, D. PITZL, R. PLACAKYTE, P. PLUCINSKI, B. POKORNY, N.S. POKROVSKIY, R. POLIFKA, A. POLINI, B. POVH, A.S. PROSKURYAKOV, M. PRZYBYCIEN, V. RADESCU, A.J. RAHMAT, N. RAICEVIC, A. RASPIAREZA, A. RAVAL, T. RAVDANDORJ, D.D. REEDER, P. REIMER, B. REISERT, Z. REN, J. REPOND, Y.D. RI, E. RIZVI, A. ROBERTSON, P. ROBMANN, B. ROLAND, P. ROLOFF, E. RON, R. ROOSEN, A. ROSTOVTSEV, M. ROTARU, I. RUBINSKY, J.E. RUIZ TABASCO, Z. RURIKOVA, S. RUSAKOV, M. RUSPA, R. SACCHI, D. SALEK, A. SALII, 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. SCHONBERG, A. SCHONING, T. SCHORNER-SADENIUS, H.C. SCHULTZ-COULON, J. SCHWARTZ, F. SCIULLI, F. SEFKOW, R.N. SHAW-WEST, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, L.N. SHTARKOV, S. SHUSHKEVICH, I. SINGH, I.O. SKILLICORN, T. SLOAN, W. SLOMINSKI, I. SMILJANIC, W.H. SMITH, V. SOLA, A. SOLANO, Y. SOLOVIEV, D. SON, P. SOPICKI, IU. SOROKIN, V. SOSNOVTSEV, D. SOUTH, V. SPASKOV, A. SPECKA, A. SPIRIDONOV, H. STADIE, L. STANCO, Z. STAYKOVA, M. STEDER, B. STELLA, A. STERN, T.P. STEWART, A. STIFUTKIN, G. STOICEA, P. STOPA, U. STRAUMANN, S. SUCHKOV, D. SUNAR, G. SUSINNO, L. SUSZYCKI, T. SYKORA, J. SZTUK, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, V. TCHOULAKOV, J. TERRON, T. THEEDT, G. THOMPSON, P.D. THOMPSON, H. TIECKE, K. TOKUSHUKU, T. TOLL, F. TOMASZ, J. TOMASZEWSKA, T.H. TRAN, D. TRAYNOR, T.N. TRINH, P. TRUOL, I. TSAKOV, B. TSEEPELDORJ, T. TSURUGAI, M. TURCATO, J. TURNAU, T. TYMIENIECKA, K. URBAN, C. URIBE-ESTRADA, A. VALKAROVA, C. VALLEE, P. VAN MECHELEN, A. VARGAS TREVINO, Y. VAZDIK, M. VAZQUEZ, A. VERBYTSKYI, V. VIAZLO, S. VINOKUROVA, N.N. VLASOV, V. VOLCHINSKI, O. VOLYNETS, M. VON DEN DRIESCH, R. WALCZAK, W.A.T. WAN ABDULLAH, D. WEGENER, J.J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, CH. WISSING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, E. WUNSCH, A.G. YAGUES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, J. ZACEK, J. ZALESAK, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, Z. ZHANG, B.O. ZHAUTYKOV, A. ZHOKIN, C. ZHOU, A. ZICHICHI, T. ZIMMERMANN, H. ZOHRABYAN, M. ZOLKO, F. ZOMER, D.S. ZOTKIN, R. ZUS, (ukupan broj autora: 544), 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), and 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)
Subjects: Nuclear and High Energy Physics, Particle physics, LOW X, HERA, Lepton-Nucleon Scattering, FOS: Physical sciences, Parton, 01 natural sciences, High Energy Physics - Experiment, Set (abstract data type), DEEP-INELASTIC SCATTERING, PHYSICS, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], LOW Q(2), 010306 general physics, PROTON COLLISIONS, DETECTOR, Charged current, E(+)P SCATTERING, Quantum chromodynamics, Physics, ZEUS (particle detector), Lepton-nuclear scattering, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, ALPHA(S), F-2 STRUCTURE-FUNCTION, Orders of magnitude (time), EP SCATTERING, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A combination is presented of the inclusive deep inelastic cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current unpolarised e ± p scattering at HERA during the period 1994-2000. The data span six orders of magnitude in negative four-momentum-transfer squared, Q 2, and in Bjorken x. The combination method used takes the correlations of systematic uncertainties into account, resulting in an improved accuracy. The combined data are the sole input in a NLO QCD analysis which determines a new set of parton distributions, HERAPDF1.0, with small experimental uncertainties. This set includes an estimate of the model and parametrisation uncertainties of the fit result., Journal of High Energy Physics, 2010 (1), ISSN:1126-6708, ISSN:1029-8479
Published: 2010

34. Tracking within Hadronic Showers in the CALICE SDHCAL prototype using a Hough Transform Technique

Author: R. Cornat, H. Hirai, Frank Simon, T. H. Tran, A. Provenza, H. Mathez, K. Kruger, S. Lu, E. Brianne, Zhenan Liu, Taikan Suehara, Kiyotomo Kawagoe, W. Park, Francois Corriveau, Marina Chadeeva, P. Göttlicher, D. Yu, L. Caponetto, J. C. Marin, Qian Yue, S. Callier, A. Pingault, G. Grenier, E. Becheva, J. C. Brient, Dirk Zerwas, Djamel Eddine Boumediene, P. Goecke, M. Rubio-Roy, C. Combaret, Arnaud Steen, N. van der Kolk, A. Ebrahimi, Michael Tytgat, C. Carloganu, F. Krivan, G. Garillot, N. Zaganidis, Shih-Chang Lee, I. Polak, S. Mannai, S. Bilokin, E. Calvo Alamillo, A. Petrukhin, F. Gastaldi, A. Thiebault, G. Cho, Y. Li, R. Eté, J. Cvach, Vladislav Balagura, F. Sefkow, Y. Israeli, M. Gabriel, J. Puerta-Pelayo, J. J. Navarrete, Frédéric Magniette, Laurent Mirabito, V. Boudry, M. Reinecke, J. Kvasnicka, A. Verdugo, L. Raux, A. Irles, K. Kotera, C. Graf, H. Windel, J. Zálešák, N. Lumb, N. Seguin-Moreau, M. Kovalcuk, Y. Wang, Zhi Deng, E. Cortina Gil, Ch. de la Taille, Yuji Sudo, S. Schuwalow, H. Videau, Zishuo Yang, Vaclav Vrba, J. C. Ianigro, M. Szalay, Huong Lan Tran, K. Gadow, G. Martin-Chassard, J. Berenguer Antequera, J. Nanni, T. Kurca, R. Kieffer, Imad Baptiste Laktineh, H. Sumida, V. Buridon, F. Dulucq, Tamaki Yoshioka, O. Hartbrich, Manqi Ruan, R. Han, J. Bonis, J. Zuklin, M. Anduze, M. C. Fouz, V. Francais, K. Shpak, R. Pöschl, Francois Richard, J. Smolik, S. Vallecorsa, D. W. Kim, M. Janata, S. Cauwenbergh, B. Li, C. Neubüser, O. Bach, Yacine Haddad, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire 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), Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CALICE, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-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), 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), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)
Subjects: data analysis method, Particle physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Hadron, FOS: Physical sciences, showers: hadronic, Tracking (particle physics), 01 natural sciences, High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, Hough transform, law.invention, High Energy Physics - Experiment (hep-ex), Calorimeters, Gaseous detectors, 03 medical and health sciences, 0302 clinical medicine, law, calorimeter: hadronic, numerical methods, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], CALICE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ddc:610, Detectors and Experimental Techniques, Calorimeter methods, numerical calculations, physics.ins-det, Instrumentation, Mathematical Physics, Physics, hep-ex, track data analysis, 010308 nuclear & particles physics, Track (disk drive), Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), Calorimeter, Physics and Astronomy, High Energy Physics::Experiment, Granularity, Particle Physics - Experiment, Energy (signal processing)
Abstract: Journal of Instrumentation 12(05), P05009 (2017). doi:10.1088/1748-0221/12/05/P05009, The high granularity of the CALICE Semi-Digital Hadronic CALorimeter (SDHCAL)provides the capability to reveal the track segments present in hadronic showers. These segmentsare then used as a tool to probe the behaviour of the active layers in situ, to better reconstructthe energy of these hadronic showers and also to distinguish them from electromagnetic ones. Inaddition, the comparison of these track segments in data and the simulation helps to discriminateamong the different shower models used in the simulation. To extract the track segments in theshowers recorded in the SDHCAL, a Hough Transform is used after being adapted to the presenceof the dense core of the hadronic showers and the SDHCAL active medium structure., Published by Inst. of Physics, London
Published: 2017

35. Determination of the longitudinal proton structure function FL(x,Q2) at low x

Author: C. Adloff, S. Aid, M. Anderson, V. Andreev, B. Andrieu, C. Arndt, A. Babaev, J. Bähr, J. Bán, Y. Ban, P. Baranov, E. Barrelet, R. Barschke, W. Bartel, M. Barth, U. Bassler, H.P. Beck, M. Beck, H.-J. Behrend, A. Belousov, Ch. Berger, G. Bernardi, G. Bertrand-Coremans, M. Besançon, R. Beyer, P. Biddulph, P. Bispham, J.C. Bizot, V. Blobel, J. Blümlein, K. Borras, F. Botterweck, V. Boudry, A. Braemer, W. Braunschweig, V. Brisson, W. Brückner, P. Bruel, D. Bruncko, C. Brune, R. Buchholz, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, M.J. Burton, D. Calvet, A.J. Campbell, T. Carli, M. Charlet, D. Clarke, A.B. Clegg, B. Clerbaux, S. Cocks, J.G. Contreras, C. Cormack, J.A. Coughlan, A. Courau, M.-C. Cousinou, G. Cozzika, L. Criegee, D.G. Cussans, J. Cvach, S. Dagoret, J.B. Dainton, W.D. Dau, K. Daum, M. David, C.L. Davis, B. Delcourt, A. De Roeck, E.A. De Wolf, M. Dirkmann, P. Dixon, P. Di Nezza, W. Dlugosz, C. Dollfus, K.T. Donovan, J.D. Dowell, H.B. Dreis, A. Droutskoi, O. Dünger, H. Duhm, J. Ebert, T.R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, E. Elsen, M. Erdmann, W. Erdmann, A.B. Fahr, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, J. Formánek, J.M. Foster, G. Franke, E. Fretwurst, E. Gabathuler, K. Gabathuler, F. Gaede, J. Garvey, J. Gayler, M. Gebauer, H. Genzel, R. Gerhards, A. Glazov, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, K. Golec-Biernat, B. Gonzalez-Pineiro, I. Gorelov, C. Grab, H. Grässler, T. Greenshaw, R.K. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, T. Hadig, D. Haidt, L. Hajduk, T. Haller, M. Hampel, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, H. Henschel, I. Herynek, M.F. Hess, K. Hewitt, W. Hildesheim, K.H. Hiller, C.D. Hilton, J. Hladký, M. Höppner, D. Hoffmann, T. Holtom, R. Horisberger, V.L. Hudgson, M. Hütte, M. Ibbotson, Ç. İşsever, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jaffre, J. Janoth, D.M. Jansen, T. Jansen, L. Jönsson, D.P. Johnson, H. Jung, P.I.P. Kalmus, M. Kander, D. Kant, R. Kaschowitz, U. Kathage, J. Katzy, H.H. Kaufmann, O. Kaufmann, M. Kausch, S. Kazarian, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J.H. Köhne, H. Kolanoski, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, T. Krämerkämper, H. Krehbiel, D. Krücker, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, D. Lacour, B. Laforge, M.P.J. Landon, W. Lange, U. Langenegger, A. Lebedev, F. Lehner, S. Levonian, G. Lindström, M. Lindstroem, F. Linsel, J. Lipinski, B. List, G. Lobo, P. Loch, J.W. Lomas, G.C. Lopez, V. Lubimov, D. Lüke, L. Lytkin, N. Magnussen, E. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, J. Martens, G. Martin, R. Martin, H.-U. Martyn, J. Martyniak, T. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, F. Metlica, A. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, A. Migliori, S. Mikocki, D. Milstead, J. Moeck, F. Moreau, J.V. Morris, E. Mroczko, D. Müller, G. Müller, K. Müller, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th. Naumann, I. Négri, P.R. Newman, D. Newton, H.K. Nguyen, T.C. Nicholls, F. Niebergall, C. Niebuhr, Ch. Niedzballa, H. Niggli, G. Nowak, G.W. Noyes, T. Nunnemann, M. Nyberg-Werther, M. Oakden, H. Oberlack, J.E. Olsson, D. Ozerov, P. Palmen, E. Panaro, A. Panitch, C. Pascaud, G.D. Patel, H. Pawletta, E. Peppel, E. Perez, J.P. Phillips, A. Pieuchot, D. Pitzl, G. Pope, B. Povh, S. Prell, K. Rabbertz, G. Rädel, P. Reimer, S. Reinshagen, S. Riemersma, H. Rick, F. Riepenhausen, S. Riess, E. Rizvi, P. Robmann, H.E. Roloff, R. Roosen, K. Rosenbauer, A. Rostovtsev, F. Rouse, C. Royon, K. Rüter, S. Rusakov, K. Rybicki, D.P.C. Sankey, P. Schacht, S. Schiek, S. Schleif, P. Schleper, W. von Schlippe, D. Schmidt, G. Schmidt, L. Schoeffel, A. Schöning, V. Schröder, E. Schuhmann, B. Schwab, F. Sefkow, R. Sell, A. Semenov, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I.O. Skillicorn, P. Smirnov, V. Solochenko, Y. Soloviev, A. Specka, J. Spiekermann, S. Spielman, H. Spitzer, F. Squinabol, P. Steffen, R. Steinberg, H. Steiner, J. Steinhart, B. Stella, A. Stellberger, J. Stier, J. Stiewe, U. Stößlein, K. Stolze, U. Straumann, W. Struczinski, J.P. Sutton, S. Tapprogge, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, J. Theissen, C. Thiebaux, G. Thompson, N. Tobien, R. Todenhagen, P. Truöl, G. Tsipolitis, J. Turnau, J. Tutas, E. Tzamariudaki, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Vallée, D. Vandenplas, P. Van Esch, P. Van Mechelen, Y. Vazdik, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, M. Wagener, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, L.R. West, T. Wilksen, S. Willard, M. Winde, G.-G. Winter, C. Wittek, M. Wobisch, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, P. Zini, F. Zomer, J. Zsembery, K. Zuber, M. zurNedden, 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), 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), 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, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), and 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)
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, Scattering, FOS: Physical sciences, Order (ring theory), HERA, 01 natural sciences, High Energy Physics - Experiment, Momentum, High Energy Physics - Experiment (hep-ex), Cross section (physics), Positron, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: A measurement of the inclusive cross section for the deep-inelastic scattering of positrons off protons at HERA is presented at momentum transfers $8.5 \leq Q^2 \leq 35 GeV^2$ and large inelasticity $y = 0.7$, i.e. for the Bjorken-x range $0.00013 \leq x \leq 0.00055$. Using a next-to-leading order QCD fit to the structure function F_2 at lower y values, the contribution of F_2 to the measured cross section at high y is calculated and, by subtraction, the longitudinal structure function F_{L} is determined for the first time with an average value of $F_L=0.52 \pm 0.03 (stat)$^ {+0.25}_{-0.22}$ (syst) at $Q^2=15.4 GeV^2$ and $x=0.000243$., 17 pages, latex, 4 Figures
Published: 1997

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. Validation of GEANT4 Monte Carlo Models with a Highly Granular Scintillator-Steel Hadron Calorimeter

Author: C Adloff, J Blaha, J -J Blaising, C Drancourt, A Espargilière, R Gaglione, N Geffroy, Y Karyotakis, J Prast, G Vouters, K Francis, J Repond, J Schlereth, J Smith, L Xia, E Baldolemar, J Li, S T Park, M Sosebee, A P White, J Yu, T Buanes, G Eigen, Y Mikami, N K Watson, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, J Apostolakis, A Dotti, G Folger, V Ivantchenko, V Uzhinskiy, M Benyamna, C Cârloganu, F Fehr, P Gay, S Manen, L Royer, G C Blazey, A Dyshkant, J G R Lima, V Zutshi, J -Y Hostachy, L Morin, U Cornett, D David, G Falley, K Gadow, P Göttlicher, C Günter, B Hermberg, S Karstensen, F Krivan, A -I Lucaci-Timoce, S Lu, B Lutz, S Morozov, V Morgunov, M Reinecke, F Sefkow, P Smirnov, M Terwort, A Vargas-Trevino, N Feege, E Garutti, I Marchesini, M Ramilli, P Eckert, T Harion, A Kaplan, H -Ch Schultz-Coulon, W Shen, R Stamen, B Bilki, E Norbeck, Y Onel, G W Wilson, K Kawagoe, P D Dauncey, A -M Magnan, V Bartsch, M Wing, F Salvatore, E Calvo Alamillo, M -C Fouz, J Puerta-Pelayo, B Bobchenko, M Chadeeva, M Danilov, A Epifantsev, O Markin, R Mizuk, E Novikov, V Popov, V Rusinov, E Tarkovsky, N Kirikova, V Kozlov, Y Soloviev, P Buzhan, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, V Tikhomirov, C Kiesling, K Seidel, F Simon, C Soldner, M Szalay, M Tesar, L Weuste, M S Amjad, J Bonis, S Callier, S Conforti di Lorenzo, P Cornebise, Ph Doublet, F Dulucq, J Fleury, T Frisson, N van der Kolk, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Pöschl, L Raux, J Rouëné, N Seguin-Moreau, M Anduze, V Boudry, J-C Brient, D Jeans, P Mora de Freitas, G Musat, M Reinhard, M Ruan, H Videau, B Bulanek, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, D Lednicky, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, H Ghazlane, T Takeshita, S Uozumi, M Götze, O Hartbrich, J Sauer, S Weber, C Zeitnitz, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-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), CALICE, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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)-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 - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Highly Granular Calorimetry [9.5], Hadron, Monte Carlo method, FOS: Physical sciences, Scintillator, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Silicon photomultiplier, Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, physics.ins-det, Instrumentation, Mathematical Physics, Advanced infrastructures for detector R&D [9], Physics, Range (particle radiation), hep-ex, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Computational physics, Calorimeter, High Energy Physics::Experiment, Granularity, Particle Physics - Experiment
Abstract: Calorimeters with a high granularity are a fundamental requirement of the Particle Flow paradigm. This paper focuses on the prototype of a hadron calorimeter with analog readout, consisting of thirty-eight scintillator layers alternating with steel absorber planes. The scintillator plates are finely segmented into tiles individually read out via Silicon Photomultipliers. The presented results are based on data collected with pion beams in the energy range from 8GeV to 100GeV. The fine segmentation of the sensitive layers and the high sampling frequency allow for an excellent reconstruction of the spatial development of hadronic showers. A comparison between data and Monte Carlo simulations is presented, concerning both the longitudinal and lateral development of hadronic showers and the global response of the calorimeter. The performance of several GEANT4 physics lists with respect to these observables is evaluated. Calorimeters with a high granularity are a fundamentalrequirement of the Particle Flow paradigm. This paper focuses on theprototype of a hadron calorimeter with analog readout, consisting ofthirty-eight scintillator layers alternating with steel absorberplanes. The scintillator plates are finely segmented into tilesindividually read out via Silicon Photomultipliers. The presentedresults are based on data collected with pion beams in the energyrange from 8 GeV to 100 GeV. The fine segmentation of thesensitive layers and the high sampling frequency allow for anexcellent reconstruction of the spatial development of hadronicshowers. A comparison between data and Monte Carlo simulations ispresented, concerning both the longitudinal and lateral developmentof hadronic showers and the global response of the calorimeter. Theperformance of several GEANT4 physics lists with respect tothese observables is evaluated. Calorimeters with a high granularity are a fundamental requirement of the Particle Flow paradigm. This paper focuses on the prototype of a hadron calorimeter with analog readout, consisting of thirty-eight scintillator layers alternating with steel absorber planes. The scintillator plates are finely segmented into tiles individually read out via Silicon Photomultipliers. The presented results are based on data collected with pion beams in the energy range from 8GeV to 100GeV. The fine segmentation of the sensitive layers and the high sampling frequency allow for an excellent reconstruction of the spatial development of hadronic showers. A comparison between data and Monte Carlo simulations is presented, concerning both the longitudinal and lateral development of hadronic showers and the global response of the calorimeter. The performance of several GEANT4 physics lists with respect to these observables is evaluated.
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. Construction and performance of a silicon photomultiplier/extruded scintillator tail-catcher and muon-tracker

Author: C Adloff, J Blaha, J -J Blaising, C Drancourt, A Espargilière, R Gaglione, N Geffroy, Y Karyotakis, J Prast, G Vouters, B Bilki, K Francis, J Repond, J Smith, L Xia, E Baldolemar, J Li, S T Park, M Sosebee, A P White, J Yu, T Buanes, G Eigen, Y Mikami, N K Watson, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, M Benyamna, C Cârloganu, F Fehr, P Gay, S Manen, L Royer, G C Blazey, S Boona, D Chakraborty, A Dyshkant, D Hedin, J G R Lima, J Powell, V Rykalin, N Scurti, M Smith, N Tran, V Zutshi, J -Y Hostachy, L Morin, U Cornett, D David, J Dietrich, G Falley, K Gadow, P Göttlicher, C Günter, B Hermberg, S Karstensen, F Krivan, A -I Lucaci-Timoce, S Lu, B Lutz, I Marchesini, S Morozov, V Morgunov, M Reinecke, F Sefkow, P Smirnov, M Terwort, A Vargas-Trevino, N Feege, E Garutti, P Eckert, A Kaplan, H -Ch Schultz-Coulon, W Shen, R Stamen, A Tadday, E Norbeck, Y Onel, G W Wilson, K Kawagoe, S Uozumi, P D Dauncey, A -M Magnan, V Bartsch, M Wing, F Salvatore, E Calvo Alamillo, M -C Fouz, J Puerta-Pelayo, B Bobchenko, M Chadeeva, M Danilov, A Epifantsev, O Markin, R Mizuk, E Novikov, V Rusinov, E Tarkovsky, N Kirikova, V Kozlov, Y Soloviev, P Buzhan, B Dolgoshein, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, S Smirnov, A Frey, C Kiesling, K Seidel, F Simon, C Soldner, L Weuste, J Bonis, B Bouquet, S Callier, P Cornebise, Ph Doublet, F Dulucq, M Faucci Giannelli, J Fleury, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Pöschl, L Raux, N Seguin-Moreau, F Wicek, M Anduze, V Boudry, J-C Brient, D Jeans, P Mora de Freitas, G Musat, M Reinhard, M Ruan, H Videau, B Bulanek, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, D Lednicky, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, H Ghazlane, T Takeshita, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-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), CALICE, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), 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 - Instrumentation and Detectors, International Linear Collider, Physics::Instrumentation and Detectors, FOS: Physical sciences, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Tracking (particle physics), 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Silicon photomultiplier, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Fermilab, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), Detectors and Experimental Techniques, 010306 general physics, Nuclear Experiment, Instrumentation, Mathematical Physics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Calorimeter, Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract: A prototype module for an International Linear Collider (ILC) detector was built, installed, and tested between 2006 and 2009 at CERN and Fermilab as part of the CALICE test beam program, in order to study the possibilities of extending energy sampling behind a hadronic calorimeter and to study the possibilities of providing muon tracking. The "tail catcher/muon tracker" (TCMT) is composed of 320 extruded scintillator strips (dimensions 1000 mm x 50 mm x 5 mm) packaged in 16 one-meter square planes interleaved between steel plates. The scintillator strips were read out with wavelength shifting fibers and silicon photomultipliers. The planes were arranged with alternating horizontal and vertical strip orientations. Data were collected for muons and pions in the energy range 6 GeV to 80 GeV. Utilizing data taken in 2006, this paper describes the design and construction of the TCMT, performance characteristics, and a beam-based evaluation of the ability of the TCMT to improve hadronic energy resolution in a prototype ILC detector. For a typical configuration of an ILC detector with a coil situated outside a calorimeter system with a thickness of 5.5 nuclear interaction lengths, a TCMT would improve relative energy resolution by 6-16 % for pions between 20 and 80 GeV., 23 pages, 18 figures, 4 tables, submitted to JINST
Published: 2012

41. 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

42. 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

43. 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

44. 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

45. 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

46. Effects of high-energy particle showers on the embedded front-end electronics of an electromagnetic calorimeter for a future lepton collider

Author: U. Cornett, C. Adloff, M. A. Thomson, M. Reinecke, J. Fleury, S. Callier, D. David, Jose Repond, O. Wendt, N. Feege, E. Calvo Alamillo, Andrew White, Kiyotomo Kawagoe, D. Trojand, Y. Mikami, N. Wattimena, H. Li, Frank Simon, P. Cornebise, F. Fehr, B. Lutz, P. Eckert, D. R. Ward, M. C. Fouz, J-Y. Hostachy, Jiang Li, Ivan Marchesini, K. Francis, M. Terwort, P. D. Dauncey, L. Raux, Wei Shen, H. Ch Schultz-Coulon, E. Norbeck, Johannes Haller, S. Richter, A.S. Dyshkant, P. A. Smirnov, H. Ghazlane, Ph. Doublet, Vaclav Vrba, Jong-Sung Yu, J. Samson, V. Morgunov, E. Baldolemar, V. Boudry, K. Gadow, Erika Garutti, Daniel Jeans, Manqi Ruan, G. Falley, Anne-Marie Magnan, N. K. Watson, M. Faucci Giannelli, S. Lu, S. Karstensen, F. Krivan, P. Göttlicher, C. Günter, P. Mora de Freitas, M. Sosebee, F. Salvatore, F. Dulucq, G. C. Blazey, B. Belhorma, F. Wicek, Ch. de la Taille, S. V. Morozov, Yasar Onel, J. Bonis, Petr Sicho, Driss Benchekroun, Imad Baptiste Laktineh, L. Morin, N. T. Meyer, C. Kiesling, Y. Khoulaki, M. Reinhard, G. Musat, S. Manen, A. Tadday, Michal Marcisovsky, Lei Xia, A. I. Lucaci-Timoce, A. Vargas-Trevino, Abdeslam Hoummada, J. Zálešák, N. Seguin-Moreau, F. Sefkow, Francois Richard, R. Pöschl, S. Uozumi, Burak Bilki, A. Frey, H. Videau, G. Martin-Chassard, C. Cârloganu, Rainer Stamen, A. Kaplan, J. Puerta-Pelayo, B. Bouquet, L. Royer, J. Smith, M. Benyamna, Georgios Mavromanolakis, W. Yan, V. Zutshi, J. C. Brient, Riccardo Fabbri, S. T. Park, V. Bartsch, M. Anduze, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), 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), 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), CALICE, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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), 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), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear and High Energy Physics, Particle physics, High energy particle, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Integrated circuit, 01 natural sciences, Noise (electronics), law.invention, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Optics, Application-specific integrated circuit, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, Electronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Collider, Instrumentation, Physics, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Calorimeter, High Energy Physics::Experiment, business
Abstract: Application Specific Integrated Circuits, ASICs, similar to those envisaged for the readout electronics of the central calorimeters of detectors for a future lepton collider have been exposed to high-energy electromagnetic showers. A salient feature of these calorimeters is that the readout electronics will be embedded into the calorimeter layers. In this article it is shown that interactions of shower particles in the volume of the readout electronics do not alter the noise pattern of the ASICs. No signal at or above the MIP level has been observed during the exposure. The upper limit at the 95% confidence level on the frequency of fake signals is smaller than 1 × 10 − 5 for a noise threshold of about 60% of a MIP. For ASICs with similar design to those which were tested, it can thus be largely excluded that the embedding of the electronics into the calorimeter layers compromises the performance of the calorimeters.
Published: 2011

47. 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

48. Electromagnetic response of a highly granular hadronic calorimeter

Author: The CALICE collaboration, C Adloff, J Blaha, J -J Blaising, C Drancourt, A Espargilière, R Gaglione, N Geffroy, Y Karyotakis, J Prast, G Vouters, K Francis, J Repond, J Smith, L Xia, E Baldolemar, J Li, S T Park, M Sosebee, A P White, J Yu, Y Mikami, N K Watson, T Goto, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, M Benyamna, C Cârloganu, F Fehr, P Gay, S Manen, L Royer, G C Blazey, A Dyshkant, J G R Lima, V Zutshi, J -Y Hostachy, L Morin, U Cornett, D David, R Fabbri, G Falley, K Gadow, E Garutti, P Göttlicher, C Günter, S Karstensen, F Krivan, A -I Lucaci-Timoce, S Lu, B Lutz, I Marchesini, N Meyer, S Morozov, V Morgunov, M Reinecke, F Sefkow, P Smirnov, M Terwort, A Vargas-Trevino, N Wattimena, O Wendt, N Feege, J Haller, S Richter, J Samson, P Eckert, A Kaplan, H -Ch Schultz-Coulon, W Shen, R Stamen, A Tadday, B Bilki, E Norbeck, Y Onel, G W Wilson, K Kawagoe, S Uozumi, J A Ballin, P D Dauncey, A -M Magnan, H S Yilmaz, O Zorba, V Bartsch, M Postranecky, M Warren, M Wing, F Salvatore, E Calvo Alamillo, M -C Fouz, J Puerta-Pelayo, V Balagura, B Bobchenko, M Chadeeva, M Danilov, A Epifantsev, O Markin, R Mizuk, E Novikov, V Rusinov, E Tarkovsky, V Kozlov, Y Soloviev, P Buzhan, B Dolgoshein, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, S Smirnov, A Frey, C Kiesling, K Seidel, F Simon, C Soldner, L Weuste, J Bonis, B Bouquet, S Callier, P Cornebise, Ph Doublet, F Dulucq, M Faucci Giannelli, J Fleury, G Guilhem, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Pöschl, L Raux, N Seguin-Moreau, F Wicek, M Anduze, V Boudry, J-C Brient, D Jeans, P Mora de Freitas, G Musat, M Reinhard, M Ruan, H Videau, B Bulanek, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, D Lednicky, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, H Ghazlane, K Kotera, M Nishiyama, T Takeshita, S Tozuka, T Buanes, G Eigen, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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), 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), CALICE, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-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: Materials science, Physics - Instrumentation and Detectors, International Linear Collider, Physics::Instrumentation and Detectors, FOS: Physical sciences, Scintillator, 01 natural sciences, 7. Clean energy, Optics, Silicon photomultiplier, 0103 physical sciences, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, Mathematical Physics, Large Hadron Collider, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Calorimeter, High Energy Physics::Experiment, business, Beam (structure)
Abstract: The CALICE collaboration is studying the design of high performance electromagnetic and hadronic calorimeters for future International Linear Collider detectors. For the hadronic calorimeter, one option is a highly granular sampling calorimeter with steel as absorber and scintillator layers as active material. High granularity is obtained by segmenting the scintillator into small tiles individually read out via silicon photo-multipliers (SiPM). A prototype has been built, consisting of thirty-eight sensitive layers, segmented into about eight thousand channels. In 2007 the prototype was exposed to positrons and hadrons using the CERN SPS beam, covering a wide range of beam energies and incidence angles. The challenge of cell equalization and calibration of such a large number of channels is best validated using electromagnetic processes. The response of the prototype steel-scintillator calorimeter, including linearity and uniformity, to electrons is investigated and described.
Published: 2011

49. Search for first generation leptoquarks in ep collisions at HERA

Author: Malte Hildebrandt, J. Feltesse, Ilias Panagoulias, B. Pokorny, Max Klein, Natasa Raicevic, D. Traynor, Vincent Boudry, J. Cvach, Wolfgang Lange, A. N. Morozov, M. Sauter, J. Gayler, K. Nowak, A. Fedotov, S. Habib, K. B. Cantun Avila, P. Kostka, H. Pirumov, L. Goerlich, David M. South, J. V. Morris, Jenny List, I. Bozovic-Jelisavcic, B. R. Grell, C. Niebuhr, S. Egli, Y. Soloviev, J. Turnau, Tomas Sykora, Voica Radescu, Christoph Grab, C. Kiesling, A. Bunyatyan, I. R. Kenyon, A. Baghdasaryan, A. Rostovtsev, K. Begzsuren, A. J. Campbell, Marina Rotaru, L. Joensson, M. Mudrinic, Karel Cerny, Anastasia Grebenyuk, I. Tsakov, Juraj Bracinik, E. Malinovski, V. Lubimov, F. Moreau, C. Pascaud, Emmanuel Sauvan, K. Daum, C. Vallée, A. Lebedev, Roman Kogler, Pavel A. Belov, Zhiqing Zhang, Cristinel Diaconu, G. Grindhammer, Katerina Lipka, B. Tseepeldorj, D. Haidt, T. J. Sloan, A.S. Belousov, Th D. Papadopoulou, Sergey Rusakov, S. Shushkevich, Pierre Marage, M. Fleischer, Y. Vazdik, A. Glazov, Mila Pandurovic, A. Dubak, R. Pahl, Ivan Smiljanic, Eram Rizvi, D. Salek, V. Dodonov, A. Eliseev, Gabriel Stoicea, R. Truoel, J. B. Dainton, Stephen Maxfield, John A Coughlan, Th. Naumann, R. Felst, H. U. Martyn, Claus Kleinwort, M. Jacquet, D.K. Nikitin, E. E. Elsen, R. Laycock, R. Robmann, Laurent Schoeffel, Bogdan Povh, F. Sefkow, E. Gabathuler, L. N. Shtarkov, Dave Sankey, Roland Horisberger, Andrew Mehta, U. Straumann, N. Gogitidze, K. Urban, A. Valkárová, S. Backovic, J. Delvax, B. Stella, Murrough Landon, V. Lendermann, Emmanuelle Perez, J. G. Contreras, G. D. Patel, H. Meyer, Daniel Pitzl, Ricardo Lopez-Fernandez, Stefan Schmitt, Calin Alexa, K. Krueger, K. H. Hiller, R. C. W. Henderson, J. C. Bizot, P. Sopicki, R. Van Mechelen, A. M. Fomenko, S. M. Piec, I. Milcewicz-Mika, M. Dobre, F. Huber, S. Ghazaryan, M. Steder, Hans-Christian Schultz-Coulon, V. P. Andreev, Federico Alberto Ceccopieri, G. Herrera, Jan Kretzschmar, V. Cerny, Benno List, A. Specka, B. Delcourt, M. Brinkmann, Tomas Hreus, T. Kluge, L. Bystritskaya, Laurent Favart, H. Zohrabyan, R. Platakyte, Vladimir Palichik, I. Picuric, Guenter Eckerlin, A. Makankine, G. Buschhorn, D. Ozerov, D. J. Fischer, Z. Staykova, P. E. Reimer, E. Wuensch, M. Herbst, Andre Schoening, H. Henschel, Daniel Britzger, E. Hennekemper, D. Wegener, T. H. Tran, M. Kapichine, S. Mikocki, Rd. Thompson, Paul Richard Newman, Grzegorz Nowak, A. Dossanov, Fabian Zomer, A. Petrukhin, C. Helebrantk, J. Zálešák, V. Spaskov, Hannes Jung, Alexander Zhokin, A. B. Meyer, Dusan Bruncko, V. Brisson, T. Greenshaw, E. Barrelet, J. Ferencei, T. Ravdandorj, M. Kraemer, J. E. Ruiz Tabasco, E. A. De Wolf, R. Roosen, Dieter H. H. Hoffmann, G. Lastovitka-Medin, Richard Polifka, Gerhard Brandt, V. Chekelian, F. D. Aaron, J. Zacek, Xavier Janssen, J-P. Meyer, Maxime Gouzevitch, K. Mueller, S. Baghdasaryana, S. Levonian, J. E. Olsson, W. Bartel, H1 Collaboration, 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), and (ukupan broj autora: 203)
Subjects: Nuclear and High Energy Physics, Particle physics, Scalar (mathematics), FOS: Physical sciences, Electron, Lambda, 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, Leptoquark, 010306 general physics, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, First generation, Transverse momentum, Physique des particules élémentaires, High Energy Physics::Experiment
Abstract: A search for first generation scalar and vector leptoquarks produced in ep collisions is performed by the H1 experiment at HERA. The full H1 data sample is used in the analysis, corresponding to an integrated luminosity of 446 pb-1. No evidence for the production of leptoquarks is observed in final states with a large transverse momentum electron or with large missing transverse momentum, and constraints on leptoquark models are derived. For leptoquark couplings of electromagnetic strength λ=0.3, first generation leptoquarks with masses up to 800 GeV are excluded at 95% confidence level. © 2011 Elsevier B.V., 0, H1 Collaboration, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2011

50. 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

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