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1. Charm production in charged current deep inelastic scattering at HERA

Author

Abt, I., Adamczyk, L., Aushev, V., Behnke, O., Behrens, Ulf, Bertolin, A., Bloch, I., Brock, I., Brook, Nick, Brugnera, R., Bruni, A., Bussey, Peter, Caldwell, A., Capua, M., Catterall, Corinna, Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, AM, Corradi, M., Dementiev, RK, Dusini, S., Foster, B., Gallo-Voss, Elisabetta, Garfagnini, A., Geiser, A., Gladilin, Leonid, Golubkov, Yu A, Grzelak, G., Hochman, D., Jomhari, Nur Zulaiha, Kadenko, Igor, Kananov, S., Karshon, U., Kaur, P., Aggarwal, R., Klanner, R., Klein, U., Korzhavina, IA, Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, BB, Levy, Aharon, Löhr, B., Lohrmann, E., Longhin, A., Lukina, Olga, Malka, J., Nagano, K., Onishchuk, Yu, Paul, E., Przybycien, M., Ruspa, M., Saxon, David, Schneekloth, U., Schörner-Sadenius, T., Shcheglova, Lydia, Skillicorn, Ian, Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, Andrii, Wan Abdullah, W. A. T., Wichmann, K., Wing, M., Yamada, Sakue, Yamazaki, Y., Zarnecki, A. Filip, Zawiejski, L., Zenaiev, O., Gwenlan, C., Polini, A., Makarenko, I., Masciocchi, S., Onderwaater, J., Selyuzhenkov, I., Gangadharan, D., Nam, JD, Surrow, B., Quintero, A., Ferrnado, J., Pidhurskyi, I., Shchedrolosiev, M., and Shkola, O.

Subjects
electron p: deep inelastic scattering, data analysis method, electroweak interaction, statistical analysis, positron p: deep inelastic scattering, charm: production, ZEUS, kinematics: phase space, cross section: measured, Monte Carlo, experimental results, charged current
Abstract

Journal of high energy physics 1905(05), 201 (2019). doi:10.1007/JHEP05(2019)201, Charm production in charged current deep inelastic scattering has been measured for the first time in $e^{\pm}p$ collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of $358 pb^{-1}$. Results are presented separately for $e^{+}p$ and $e^{-}p$ scattering at a centre-of-mass energy of $\sqrt{s} = 318 GeV$ within a kinematic phase-space region of $200 GeV^{2} < Q^{2}, Published by Springer Nature, Cham

Published
2019
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2. Charm production in charged current deep inelastic scattering at HERA

Author

Abt, I., Adamczyk, L., Aggarwal, R., Aushev, V., Behnke, O., Behrens, Ulf, Bertolin, A., Bloch, I., Brock, I., Brook, N. H., Brugnera, R., Bruni, A., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Dementiev, R. K., Dusini, S., Ferrando, J., Foster, B., Gallo-Voss, Elisabetta, Gangadharan, D., Garfagnini, A., Geiser, A., Gladilin, L. K., Golubkov, Yu. A., Grzelak, G., Gwenlan, C., Hochman, D., Jomhari, N. Z., Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Klanner, R., Klein, U., Korzhavina, I. A., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, Aharon, Löhr, B., Lohrmann, E., Longhin, A., Lukina, O. Yu., Makarenko, I., Malka, J., Masciocchi, S., Nagano, K., Nam, J. D., Onderwaater, J., Onishchuk, Yu., Paul, Ewald, Pidhurskyi, I., Polini, A., Przybycień, M., Quintero, A., Ruspa, M., Saxon, D. H., Schneekloth, U., Schörner-Sadenius, T., Selyuzhenkov, I., Shchedrolosiev, M., Shcheglova, L. M., Shkola, O., Skillicorn, I. O., Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., Stopa, P., Surrow, B., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Abdullah, W. A. T. Wan, Wichmann, K., Wing, Matthew, Yamada, S., Yamazaki, Y., Zarnecki, A. F.\., Zawiejski, L., and Zenaiev, O.

Subjects
DESY HERA Stor, electroweak interaction, deep inelastic scattering, scattering, charm: production, High Energy Physics::Experiment, ZEUS, kinematics: phase space, cross section: measured, Nuclear Experiment, statistical, charged current
Abstract

Charm production in charged current deep inelastic scattering has been measured for the first time in $e^{\pm}p$ collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of $358 pb^{-1}$. Results are presented separately for $e^{+}p$ and $e^{-}p$ scattering at a centre-of-mass energy of $\sqrt{s} = 318 GeV$ within a kinematic phase-space region of $200 GeV^{2} < Q^{2}

Published
2019
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3. Limits on the effective quark radius from inclusive ep scattering at HERA

Author

Abramowicz, H., Abt, I., Boos, EG, Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Brock, I., Wan Abdullah, WAT, Wichmann, K., Wing, M., Yamada, S., Yamazaki, Y., Zakharchuk, N., Żarnecki, AF, Zawiejski, L., Zenaiev, O., Zhautykov, BO, Brook, NH, Zotkin, DS, Bhadra, S., Gwenlan, C., Hlushchenko, O., Polini, A., Mastroberardino, A., Sukhonos, D., ZEUS Collaboration, Brugnera, R., Bruni, A., Bussey, PJ, Caldwell, A., Capua, M., Catterall, CD, Chwastowski, J., Adamczyk, L., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, AM, Corradi, M., Dementiev, RK, Devenish, RCE, Dusini, S., Foster, B., Gach, G., Gallo, E., Adamus, M., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, LK, Golubkov, Yu A, Grzelak, G., Guzik, M., Hain, W., Hochman, D., Hori, R., Antonelli, S., Ibrahim, ZA, Iga, Y., Ishitsuka, M., Januschek, F., Jomhari, NZ, Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Kisielewska, D., Aushev, V., Klanner, R., Klein, U., Korzhavina, IA, Kotański, A., Kötz, U., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Behnke, O., Levchenko, BB, Levy, A., Limentani, S., Lisovyi, M., Lobodzinska, E., Löhr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, OYu, Behrens, U., Makarenko, I., Malka, J., Mohamad Idris, F., Mohammad Nasir, N., Myronenko, V., Nagano, K., Nobe, T., Nowak, RJ, Onishchuk, Yu, Paul, E., Bertolin, A., Perlański, W., Pokrovskiy, NS, Przybycien, M., Roloff, P., Ruspa, M., Saxon, DH, Schioppa, M., Schneekloth, U., Schörner-Sadenius, T., Shcheglova, LM, Bloch, I., Shevchenko, R., Shkola, O., Shyrma, Yu, Singh, I., Skillicorn, IO, Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., and Stern, A.

Subjects
Quark, Particle physics, Nuclear and High Energy Physics, neutral current, Physics beyond the Standard Model, measured [channel cross section], HERA, model [form factor], FOS: Physical sciences, Parton, 4/3, 01 natural sciences, charged current, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), HERA, ZEUS, Deep inelastic scattering, 0103 physical sciences, TeV [scale], ddc:530, deep inelastic scattering [positron p], 010306 general physics, Physics, Luminosity (scattering theory), Neutral current, new physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, ZEUS, Radius, form factor [quark], scattering [electron quark], DESY HERA Stor, High Energy Physics - Phenomenology, deep inelastic scattering [electron p], High Energy Physics::Experiment, distribution function [parton], inclusive reaction [lepton nucleon], Deep inelastic scattering, Particle Physics - Experiment, experimental results
Abstract

The high-precision HERA data allows searches up to TeV scales for Beyond the Standard Model contributions to electron-quark scattering. Combined measurements of the inclusive deep inelastic cross sections in neutral and charged current $ep$ scattering corresponding to a luminosity of around 1 fb$^{-1}$ have been used in this analysis. A new approach to the beyond the Standard Model analysis of the inclusive $ep$ data is presented; simultaneous fits of parton distribution functions together with contributions of "new physics" processes were performed. Results are presented considering a finite radius of quarks within the quark form-factor model. The resulting 95% C.L. upper limit on the effective quark radius is $0.43\cdot 10^{-16}$ cm., 10 pages, 4 figures, accepted by Phys. Lett. B

Published
2016
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4. Measurement of D* photoproduction at three different centre-of-mass energies at HERA

Author

Abramowicz, H., Abt, I., Barakbaev, A. N., Martin, J. F., Mergelmeyer, S., Idris, F. Mohamad, Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Bartosik, N., Olkiewicz, K., Onishchuk, Yu., Paul, E., Perlanski, W., Perrey, H., Pokrovskiy, N. S., Proskuryakov, A. S., Przybycien, M., Raval, A., Roloff, P., Behnke, O., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schorner-Sadenius, T., Schwartz, J., Shcheglova, L. M., Behr, J., Shevchenko, R., Shkola, O., Singh, I., Skillicorn, I. O., Slominski, W., Sola, V., Solano, A., Spiridonov, A., Stanco, L., Stefaniuk, N., Behrens, U., Stern, A., Stewart, T. P., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Tomaszewska, J., Bertolin, A., Trofymov, A., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Wan Abdullah, W. A. T., Bhadra, S., Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Bloch, I., Zhmak, N., Zotkin, D. S., ZEUS Collaboration, Bokhonov, V., Boos, E. G., Adamczyk, L., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Adamus, M., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., D'Agostini, G., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Drugakov, V., Aggarwal, R., Dusini, S., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Antonelli, S., Golubkov, Yu. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Arslan, O., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Aushev, V., Kaur, P., Khein, L. A., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kotanski, A., Aushev, Y., Kotz, U., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Bachynska, O., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Maeda, J., Makarenko, I., and Malka, J.

Subjects
Particle physics, Nuclear and High Energy Physics, Photon, Meson, HERA, ZEUS, measured [channel cross section], FOS: Physical sciences, heavy quark production, photoproduction [D*(2010)], transverse momentum, 01 natural sciences, High Energy Physics - Experiment, energy dependence, Nuclear physics, High Energy Physics - Experiment (hep-ex), TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, quantum chromodynamics, Rapidity, ddc:530, hadronic decay [D*(2010)], 010306 general physics, Nuclear Experiment, charm physics, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, lepton-nucleon scattering, scattering [electron p], 251: 318 GeV-cms [225], Deep inelastic scattering, QCD, DESY HERA Stor, rapidity, Transverse momentum, High Energy Physics::Experiment, Vertex detector, 1 [higher-order], experimental results
Abstract

The photoproduction of $D^{*\pm}$ mesons has been measured with the ZEUS detector at HERA at three different ep centre-of-mass energies, $\sqrt{s}$, of 318, 251 and 225 GeV. For each data set, $D^*$ mesons were required to have transverse momentum, $p_T^{D^*}$, and pseudorapidity, $��^{D^*}$, in the ranges $1.9 < p_T^{D^*} < 20$ GeV and $|��^{D^*}, 17 pages, 7 figures, accepted by JHEP. Updated version includes comments from journal referee

Published
2016
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5. Combined QCD and electroweak analysis of HERA data

Author

Abramowicz, H., Abt, I., Boos, EG, Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Brock, I., Wan Abdullah, WAT, Wichmann, K., Wing, M., Yamada, S., Yamazaki, Y., Zakharchuk, N., Żarnecki, AF, Zawiejski, L., Zenaiev, O., Zhautykov, BO, Brook, NH, Zotkin, DS, Bhadra, S., Gwenlan, C., Hlushchenko, O., Polini, A., Mastroberardino, A., ZEUS Collaboration, Brugnera, R., Bruni, A., Bussey, PJ, Caldwell, A., Capua, M., Catterall, CD, Chwastowski, J., Adamczyk, L., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, AM, Corradi, M., Dementiev, RK, Devenish, RCE, Dusini, S., Foster, B., Gach, G., Gallo, E., Adamus, M., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, LK, Golubkov, Yu A, Grzelak, G., Guzik, M., Hain, W., Hochman, D., Hori, R., Antonelli, S., Ibrahim, ZA, Iga, Y., Ishitsuka, M., Januschek, F., Jomhari, NZ, Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Kisielewska, D., Aushev, V., Klanner, R., Klein, U., Korzhavina, IA, Kotański, A., Kötz, U., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Behnke, O., Levchenko, BB, Levy, A., Limentani, S., Lisovyi, M., Lobodzinska, E., Löhr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, OYu, Behrens, U., Makarenko, I., Malka, J., Mohamad Idris, F., Mohammad Nasir, N., Myronenko, V., Nagano, K., Nobe, T., Nowak, RJ, Onishchuk, Yu, Paul, E., Bertolin, A., Perlański, W., Pokrovskiy, NS, Przybycien, M., Roloff, P., Ruspa, M., Saxon, DH, Schioppa, M., Schneekloth, U., Schörner-Sadenius, T., Shcheglova, LM, Bloch, I., Shevchenko, R., Shkola, O., Shyrma, Yu, Singh, I., Skillicorn, IO, Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., and Stern, A.

Subjects
POLARIZATION, Parton, Technicolor, HIGH Q(2), 01 natural sciences, High Energy Physics - Experiment, charged current, High Energy Physics - Experiment (hep-ex), axial-vector [coupling], High Energy Physics - Phenomenology (hep-ph), Boson, Physics, Quantum chromodynamics, polarization [electron], Electroweak interaction, HERA, High Energy Physics - Phenomenology, mass [W], DESY HERA Stor, EP SCATTERING, mixing angle [electroweak interaction], distribution function [parton], Particle Physics - Experiment, Particle physics, neutral current, FOS: Physical sciences, CURRENT CROSS-SECTIONS, quark, Nuclear physics, HERA, ZEUS, DIS, QCD, Electroweak, deep inelastic scattering, coupling [Z0], quantum chromodynamics, 0103 physical sciences, ddc:530, PROTON COLLISIONS, numerical calculations, 010306 general physics, DEEP-INELASTIC-SCATTERING, DIS, Electroweak, Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ZEUS, Deep inelastic scattering, QCD, beam [electron], POLARIMETER, CURRENT CROSS-SECTIONS, DEEP-INELASTIC-SCATTERING, PERTURBATION-THEORY, PROTON COLLISIONS, EP SCATTERING, HIGH Q(2), POLARIZATION, POLARIMETER, PERTURBATION-THEORY, High Energy Physics::Experiment
Abstract

A simultaneous fit of parton distribution functions (PDFs) and electroweak parameters to HERA data on deep inelastic scattering is presented. The input data are the neutral current and charged current inclusive cross sections which were previously used in the QCD analysis leading to the HERAPDF2.0 PDFs. In addition, the polarisation of the electron beam was taken into account for the ZEUS data recorded between 2004 and 2007. Results on the vector and axial-vector couplings of the Z boson to u- and d-type quarks, on the value of the electroweak mixing angle and the mass of the W boson are presented. The values obtained for the electroweak parameters are in agreement with Standard Model predictions., 32 pages, 10 figures, accepted by Phys. Rev. D. Small corrections from proofing process and small change to Fig. 12 and Table 4

Published
2016
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6. Search for a narrow baryonic state decaying to ${pK^0_S}$ and ${\overline{p}K^0_S}$ in deep inelastic scattering at HERA

Author

Abramowicz, H., Abt, I., Boos, EG, Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Brock, I., Wan Abdullah, WAT, Wichmann, K., Wing, M., Yamada, S., Yamazaki, Y., Zakharchuk, N., Żarnecki, AF, Zawiejski, L., Zenaiev, O., Zhautykov, BO, Brook, NH, Zotkin, DS, Bhadra, S., Gwenlan, C., Hlushchenko, O., Polini, A., Mastroberardino, A., ZEUS Collaboration, Brugnera, R., Bruni, A., Bussey, PJ, Caldwell, A., Capua, M., Catterall, CD, Chwastowski, J., Adamczyk, L., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, AM, Corradi, M., Dementiev, RK, Devenish, RCE, Dusini, S., Foster, B., Gach, G., Gallo, E., Adamus, M., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, LK, Golubkov, Yu A, Grzelak, G., Guzik, M., Hain, W., Hochman, D., Hori, R., Antonelli, S., Ibrahim, ZA, Iga, Y., Ishitsuka, M., Januschek, F., Jomhari, NZ, Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Kisielewska, D., Aushev, V., Klanner, R., Klein, U., Korzhavina, IA, Kotański, A., Kötz, U., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Behnke, O., Levchenko, BB, Levy, A., Limentani, S., Lisovyi, M., Lobodzinska, E., Löhr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, OYu, Behrens, U., Makarenko, I., Malka, J., Mohamad Idris, F., Mohammad Nasir, N., Myronenko, V., Nagano, K., Nobe, T., Nowak, RJ, Onishchuk, Yu, Paul, E., Bertolin, A., Perlański, W., Pokrovskiy, NS, Przybycien, M., Roloff, P., Ruspa, M., Saxon, DH, Schioppa, M., Schneekloth, U., Schörner-Sadenius, T., Shcheglova, LM, Bloch, I., Shevchenko, R., Shkola, O., Shyrma, Yu, Singh, I., Skillicorn, IO, Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., and Stern, A.

Subjects
photon, FOS: Physical sciences, particle identification [p], ZEUS, scattering [electron p], High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, DESY HERA Stor, High Energy Physics - Phenomenology (hep-ph), deep inelastic scattering, ddc:530, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, photoproduction, experimental results
Abstract

A search for a narrow baryonic state in the $pK^0_S$ and $\bar{p}K^0_S$ system has been performed in $ep$ collisions at HERA with the ZEUS detector using an integrated luminosity of 358 pb$^{-1}$ taken in 2003-2007. The search was performed with deep inelastic scattering events at an $ep$ centre-of-mass energy of 318 GeV for exchanged photon virtuality, $Q^2$, between 20 and 100 $\rm{} GeV^{2}$. Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb$^{-1}$ taken in 1996-2000, no resonance peak was found in the $p(\bar{p})K^0_S$ invariant-mass distribution in the range 1.45-1.7 GeV. Upper limits on the production cross section are set., 16 pages, 4 figures, accepted by Phys. Lett. B. Minor changes from journal reviewing process, including a small correction to figure 4

Published
2016
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7. Production of exclusive dijets in diffractive deep inelastic scattering at HERA

Author

ZEUS Collaboration, Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Antonelli, S., Aushev, V., Aushev, Y., Behnke, O., Behrens, U., Bertolin, A., Bloch, I., Boos, E. G., Borras, K., Brock, I., Brook, N. H., Brugnera, R., Bruni, A., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Dusini, S., Figiel, J., Foster, B., Gach, G., Gallo, E., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Golubkov, Yu. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Jomhari, N. Z., Kadenko, I., Kananov, S., Karshon, U., Kaur, M., Kaur, P., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kota��ski, A., K��tz, U., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Lobodzinska, E., L��hr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Makarenko, I., Malka, J., Mergelmeyer, S., Idris, F. Mohamad, Nasir, N. Mohammad, Myronenko, V., Nagano, K., Nobe, T., Notz, D., Nowak, R. J., Onishchuk, Yu., Paul, E., Perla��ski, W., Pokrovskiy, N. S., Przybycie��, M., Roloff, P., Rubinsky, I., Ruspa, M., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Sch��rner-Sadenius, T., Shcheglova, L. M., Shevchenko, R., Shkola, O., Shyrma, Yu., Singh, I., Skillicorn, I. O., S��omi��ski, W., Solano, A., Stanco, L., Stefaniuk, N., Stern, A., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Trofymov, A., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Abdullah, W. A. T. Wan, Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., ��arnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Zhmak, N., and Zotkin, D. S.

Subjects
Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, HERA, diffraction, FOS: Physical sciences, measured [cross section], High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), statistical analysis, deep inelastic scattering, ddc:530, +electron+jet+jet+p%22">electron p --> electron jet jet p, Engineering (miscellaneous), HERA, ZEUS, Deep inelastic scattering, Diffraction, Dijet, Bjorken, longitudinal momentum, scattering, photon, ZEUS, production [dijet], DESY HERA Stor, flow, fractional, Dijet, High Energy Physics::Experiment, Diffraction, transverse energy, Deep inelastic scattering, experimental results
Abstract

Production of exclusive dijets in diffractive deep inelastic $e^\pm p$ scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 372 pb$^{-1}$. The measurement was performed for $\gamma^*-p$ centre-of-mass energies in the range $90 < W < 250$ GeV and for photon virtualities $Q^2 > 25$ GeV$^2$. Energy and transverse-energy flows around the jet axis are presented. The cross section is presented as a function of $\beta$ and $\phi$, where $\beta=x/x_{\rm I\!P}$, $x$ is the Bjorken variable and $x_{\rm I\!P}$ is the proton fractional longitudinal momentum loss. The angle $\phi$ is defined by the $\gamma^*-$dijet plane and the $\gamma^*-e^\pm$ plane in the rest frame of the diffractive final state. The $\phi$ cross section is measured in bins of $\beta$. The results are compared to predictions from models based on different assumptions about the nature of the diffractive exchange., Comment: 36 pages, 18 figures

Published
2016
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8. Search for a narrow baryonic state decaying to pK^0_S and pbarK^0_S in deep inelastic scattering at HERA

Author

Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Antonelli, S., Aushev, V., Behnke, O., Behrens, U., Bertolin, A., Bhadra, S., Bloch, I., Boos, E. G., Brock, I., Brook, N. H., Brugnera, R., Bruni, A., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Dementiev, R. K., Devenish, R. C. E., Dusini, S., Foster, B., Gach, G., Gallo, E., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Golubkov, Y., Grzelak, G., Guzik, M., Gwenlan, C., Hain, W., Hlushchenko, O., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Januschek, F., Jomhari, N. Z., Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Kisielewska, D., Klanner, R., Klein, U., Korzhavina, I. A., Kotanski, A., Kotz, U., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Limentani, S., Lisovyi, M., Lobodzinska, E., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O., Makarenko, I., Malka, J., Mastroberardino, A., Mohamad Idris, F., Mohammad Nasir, N., Myronenko, V., Nagano, K., Nobe, T., Nowak, R. J., Onishchuk, Y., Paul, E., Perlanski, W., Pokrovskiy, N. S., Polini, A., Przybycien, M., Roloff, P., Ruspa, M., Saxon, D. H., Schioppa, M., Schneekloth, U., Schorner-Sadenius, T., Shcheglova, L. M., Shevchenko, R., Shkola, O., Shyrma, Y., Singh, I., Skillicorn, I. O., Slominski, W., Solano, A., Stanco, L., Stefaniuk, N., Stern, A., Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Wan Abdullah, W. A. T., Wichmann, K., Wing, M., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., and Zotkin, D. S.

Subjects
HERA, ZEUS, Deep inelastic scattering, HERA, ZEUS, Deep inelastic scattering
Published
2016

9. Combination of Measurements of Inclusive Deep Inelastic $e^{\pm}p$ Scattering Cross Sections and QCD Analysis of HERA Data

Author

Abramowicz, H., Abt, I., Begzsuren, K., Hreus, T., Huber, F., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Jacquet, M., Janssen, X., Januschek, F., Jomhari, N. Z., Behnke, O., Jung, H., Kadenko, I., Kananov, S., Kapichine, M., Karshon, U., Kaur, M., Kaur, P., Kiesling, C., Kisielewska, D., Klanner, R., Behrendt Dubak, A., Klein, M., Klein, U., Kleinwort, C., Kogler, R., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kostka, P., Kotanski, A., Behrens, U., Kotz, U., Kovalchuk, N., Kowalski, H., Kretzschmar, J., Kruger, K., Krupa, B., Kuprash, O., Kuze, M., Landon, M. P. J., Lange, W., Belousov, A., Laycock, P., Lebedev, A., Levchenko, B. B., Levonian, S., Levy, A., Libov, V., Limentani, S., Lipka, K., Lisovyi, M., List, B., Belov, P., List, J., Lobodzinska, E., Lobodzinski, B., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Makarenko, I., Malinovski, E., Bertolin, A., Malka, J., Martyn, H. U., Maxfield, S. J., Mehta, A., Mergelmeyer, S., Meyer, A. B., Meyer, H., Meyer, Joachim, Mikocki, S., Idris, F. Mohamad, Bloch, I., Morozov, A., Nasir, N. Muhammad, Muller, K., Myronenko, V., Nagano, K., Naumann, Th., Newman, P. R., Niebuhr, C., Nikiforov, A., Nobe, T., Boos, E. G., Notz, D., Nowak, G., Nowak, R. J., Olsson, J. E., Onishchuk, Yu., Ozerov, D., Pahl, P., Pascaud, C., Patel, G. D., Paul, E., Borras, K., Perez, E., Perlanski, W., Petrukhin, A., Picuric, I., Pirumov, H., Pitzl, D., Pokorny, B., Pokrovskiy, N. S., Polifka, R., Przybycien, M., Adamczyk, L., Boudry, V., Radescu, V., Raicevic, N., Ravdandorj, T., Reimer, P., Rizvi, E., Robmann, P., Roloff, P., Roosen, R., Rostovtsev, A., Rotaru, M., Brandt, G., Rubinsky, I., Rusakov, S., Ruspa, M., Salek, D., Sankey, D. P. C., Sauter, M., Sauvan, E., Saxon, D. H., Schioppa, M., Schmidke, W. B., Brisson, V., Schmitt, S., Schneekloth, U., Schoeffel, L., Schoning, A., Schorner-Sadenius, T., Sefkow, F., Shcheglova, L. M., Shevchenko, R., Shkola, O., Shushkevich, S., Britzger, D., Shyrma, Yu., Singh, I., Skillicorn, I. O., Slominski, W., Solano, A., Soloviev, Y., Sopicki, P., South, D., Spaskov, V., Specka, A., Brock, I., Stanco, L., Steder, M., Stefaniuk, N., Stella, B., Stern, A., Stopa, P., Straumann, U., Sykora, T., Sztuk-Dambietz, J., Szuba, D., Brook, N. H., Szuba, J., Tassi, E., Thompson, P. D., Tokushuku, K., Tomaszewska, J., Traynor, D., Trofymov, A., Truol, P., Tsakov, I., Tseepeldorj, B., Brugnera, R., Tsurugai, T., Turcato, M., Turkot, O., Turnau, J., Tymieniecka, T., Valkarova, A., Vallee, C., Van Mechelen, P., Vazdik, Y., Verbytskyi, A., Bruni, A., Viazlo, O., Walczak, R., Wan Abdullah, W. A. T., Wegener, D., Wichmann, K., Wing, M., Wolf, G., Wunsch, E., Yamada, S., Yamazaki, Y., Buniatyan, A., Zacek, J., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhang, Z., Zhautykov, B. O., Zhmak, N., Zlebcik, R., Zohrabyan, H., Bussey, P. J., Zomer, F., Zotkin, D. S., H1 Collaboration, ZEUS Collaboration, Adamus, M., Bylinkin, A., Bystritskaya, L., Caldwell, A., Campbell, A. J., Cantun Avila, K. B., Capua, M., Catterall, C. D., Ceccopieri, F., Cerny, K., Chekelian, V., Andreev, V., Chwastowski, J., Ciborowski, J., Ciesielski, R., Contreras, J. G., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., Cvach, J., Dainton, J. B., Daum, K., Antonelli, S., Dementiev, R. K., Devenish, R. C. E., Diaconu, C., Dobre, M., Dodonov, V., Dolinska, G., Dusini, S., Eckerlin, G., Egli, S., Elsen, E., Antunovic, B., Favart, L., Fedotov, A., Feltesse, J., Ferencei, J., Figiel, J., Fleischer, M., Fomenko, A., Foster, B., Gabathuler, E., Gach, G., Aushev, V., Gallo, E., Garfagnini, A., Gayler, J., Geiser, A., Ghazaryan, S., Gizhko, A., Gladilin, L. K., Goerlich, L., Gogitidze, N., Golubkov, Yu. A., Aushev, Y., Gouzevitch, M., Grab, C., Grebenyuk, A., Grebenyuk, J., Greenshaw, T., Gregor, I., Grindhammer, G., Grzelak, G., Gueta, O., Guzik, M., Baghdasaryan, A., Gwenlan, C., Haidt, D., Hain, W., Henderson, R. C. W., Henkenjohann, P., Hladky, J., Hochman, D., Hoffmann, D., Hori, R., Horisberger, R., 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), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H1, Zeus, 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 Claude Bernard Lyon 1 (UCBL), and 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)

Subjects
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], energy [beam], charged current, High Energy Physics - Experiment, Nuclear Theory (nucl-th), High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), deep inelastic scattering, quantum chromodynamics, strong coupling, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, violation [scaling], Nuclear Experiment (nucl-ex), Nuclear Experiment, Bjorken, electroweak interaction, scattering, High Energy Physics::Phenomenology, coupling constant, parametrization, ZEUS, gluon, beam [electron], production [jet], beam [p], DESY HERA Stor, High Energy Physics - Phenomenology, correlation, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics::Experiment, distribution function [parton], charm, polarization [beam], hadronization, Particle Physics - Experiment
Abstract

A combination is presented of all inclusive deep inelastic cross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current $e^{\pm}p$ scattering for zero beam polarisation. The data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an electron beam energy of 27.5 GeV. The data correspond to an integrated luminosity of about 1 fb$^{-1}$ and span six orders of magnitude in negative four-momentum-transfer squared, $Q^2$, and Bjorken $x$. The correlations of the systematic uncertainties were evaluated and taken into account for the combination. The combined cross sections were input to QCD analyses at leading order, next-to-leading order and at next-to-next-to-leading order, providing a new set of parton distribution functions, called HERAPDF2.0. In addition to the experimental uncertainties, model and parameterisation uncertainties were assessed for these parton distribution functions. Variants of HERAPDF2.0 with an alternative gluon parameterisation, HERAPDF2.0AG, and using fixed-flavour-number schemes, HERAPDF2.0FF, are presented. The analysis was extended by including HERA data on charm and jet production, resulting in the variant HERAPDF2.0Jets. The inclusion of jet-production cross sections made a simultaneous determination of these parton distributions and the strong coupling constant possible, resulting in $\alpha_s(M_Z)=0.1183 \pm 0.0009 {\rm(exp)} \pm 0.0005{\rm (model/parameterisation)} \pm 0.0012{\rm (hadronisation)} ^{+0.0037}_{-0.0030}{\rm (scale)}$. An extraction of $xF_3^{\gamma Z}$ and results on electroweak unification and scaling violations are also presented., Comment: 159 pages, 83 figures. Updated version as accepted for publication. Small corrections and reordering of tables

Published
2015
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10. Combination of measurements of inclusive deep inelastic e±p scattering cross sections and QCD analysis of HERA data

Author

Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Andreev, V., Antonelli, S., Antunović, B., Aushev, V., Aushev, Y., Baghdasaryan, A., Begzsuren, K., Behnke, O., Behrendt Dubak, A., Behrens, U., Belousov, A., Belov, P., Bertolin, A., Bloch, I., Boos, E.G., Borras, K., Boudry, V., Brandt, G., Brisson, V., Britzger, D., Brock, I., Brook, N.H., Brugnera, R., Bruni, A., Buniatyan, A., Bussey, P.J., Bylinkin, A., Bystritskaya, L., Caldwell, A., Campbell, A.J., Cantun Avila, K.B., Capua, M., Catterall, C.D., Ceccopieri, F., Cerny, K., Chekelian, V., Chwastowski, J., Ciborowski, J., Ciesielski, R., Contreras, J.G., Cooper-Sarkar, A.M., Corradi, M., Corriveau, F., Cvach, J., Dainton, J.B., Daum, K., Dementiev, R.K., Devenish, R.C.E., Diaconu, C., Dobre, M., Dodonov, V., Dolinska, G., Dusini, S., Eckerlin, G., Egli, S., Elsen, E., Favart, L., Fedotov, A., Feltesse, J., Ferencei, J., Figiel, J., Fleischer, M., Fomenko, A., Foster, B., Gabathuler, E., Gach, G., Gallo, E., Garfagnini, A., Gayler, J., Geiser, A., Ghazaryan, S., Gizhko, A., Gladilin, L.K., Goerlich, L., Gogitidze, N., Golubkov, Yu. A., Gouzevitch, M., Grab, C., Grebenyuk, A., Grebenyuk, J., Greenshaw, T., Gregor, I., Grindhammer, G., Grzelak, G., Gueta, O., Guzik, M., Gwenlan, C., Haidt, D., Hain, W., Henderson, R.C.W., Henkenjohann, P., Hladkỳ, J., Hochman, D., Hoffmann, D., Hori, R., Horisberger, R., Hreus, T., Huber, F., Ibrahim, Z.A., Iga, Y., Ishitsuka, M., Iudin, A., Jacquet, M., Janssen, X., Januschek, F., Jomhari, N.Z., Jung, H., Kadenko, I., Kananov, S., Kapichine, M., Karshon, U., Katzy, J., Kaur, M., Kaur, P., Kiesling, C., Kisielewska, D., Klanner, R., Klein, M., Klein, U., Kleinwort, C., Kogler, R., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I.A., Kostka, P., Kotański, A., Kötz, U., Kovalchuk, N., Kowalski, H., Kretzschmar, J., Krücker, D., Krüger, K., Krupa, B., Kuprash, O., Kuze, M., Landon, M.P.J., Lange, W., Laycock, P., Lebedev, A., Levchenko, B.B., Levonian, S., Levy, A., Libov, V., Limentani, S., Lipka, K., Lisovyi, M., List, B., List, J., Lobodzinska, E., Lobodzinski, B., Löhr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Makarenko, I., Malinovski, E., Malka, J., Martyn, H.U., Maxfield, S.J., Mehta, A., Mergelmeyer, S., Meyer, A.B., Meyer, H., Meyer, J., Mikocki, S., Mohamad Idris, F., Morozov, A., Muhammad Nasir, N., Müller, K., Myronenko, V., Nagano, K., Naumann, Th., Newman, P.R., Niebuhr, C., Nikiforov, A., Nobe, T., Notz, D., Nowak, G., Nowak, R.J., Olsson, J.E., Onishchuk, Yu., Ozerov, D., Pahl, P., Pascaud, C., Patel, G.D., Paul, E., Perez, E., Perlański, W., Petrukhin, A., Picuric, I., Pirumov, H., Pitzl, D., Pokorny, B., Pokrovskiy, N.S., Polifka, R., Przybycień, M., Radescu, V., Raicevic, N., Ravdandorj, T., Reimer, P., Rizvi, E., Robmann, P., Roloff, P., Roosen, R., Rostovtsev, A., Rotaru, M., Rubinsky, I., Rusakov, S., Ruspa, M., Šálek, D., Sankey, D.P.C., Sauter, M., Sauvan, E., Saxon, D.H., Schioppa, M., Schmidke, W.B., Schmitt, S., Schneekloth, U., Schoeffel, L., Schöning, A., Schörner-Sadenius, T., Sefkow, F., Shcheglova, L.M., Shevchenko, R., Shkola, O., Shushkevich, S., Shyrma, Yu., Singh, I., Skillicorn, I.O., Słomiński, W., Solano, A., Soloviev, Y., Sopicki, P., South, D., Spaskov, V., Specka, A., Stanco, L., Steder, M., Stefaniuk, N., Stella, B., Stern, A., Stopa, P., Straumann, U., Sykora, T., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Thompson, P.D., Tokushuku, K., Tomaszewska, J., Traynor, D., Trofymov, A., Truöl, P., Tsakov, I., Tseepeldorj, B., Tsurugai, T., Turcato, M., Turkot, O., Turnau, J., Tymieniecka, T., Valkárová, A., Vallée, C., Van Mechelen, P., Vazdik, Y., Verbytskyi, A., Viazlo, O., Walczak, R., Wan Abdullah, W.A.T., Wegener, D., Wichmann, K., Wing, M., Wolf, G., Wünsch, E., Yamada, S., Yamazaki, Y., Žáček, J., Zakharchuk, N., Żarnecki, A.F., Zawiejski, L., Zenaiev, O., Zhang, Z., Zhautykov, B.O., Zhmak, N., Žlebčík, R., Zohrabyan, H., Zomer, F., and Zotkin, D.S.

Subjects
electron p: deep inelastic scattering, Inclusive DIS, HERA, HERA, ZEUS, H1, Inclusive DIS, QCD, parton: distribution function, charged current, quantum chromodynamics, strong coupling, ddc:530, violation [scaling], electron: beam, Bjorken, beam: polarization, electroweak interaction, Physics, High Energy Physics::Phenomenology, coupling constant, charm: production, parametrization, ZEUS, p: beam, production [charm], QCD, beam [electron], production [jet], beam [p], DESY HERA Stor, jet: production, correlation, H1, deep inelastic scattering [electron p], scaling: violation, High Energy Physics::Experiment, distribution function [parton], inclusive reaction, polarization [beam], hadronization, experimental results
Abstract

European physical journal special topics 75, 580 (2015). doi:10.1140/epjc/s10052-015-3710-4, Published by Springer, Berlin

Published
2015
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11. Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Author

Abramowicz, H., Abt, I., Barakbaev, A. N., Martin, J. F., Mergelmeyer, S., Idris, F. Mohamad, Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Bartosik, N., Olkiewicz, K., Onishchuk, Yu., Paul, E., Perlanski, W., Perrey, H., Pokrovskiy, N. S., Proskuryakov, A. S., Przybycien, M., Raval, A., Roloff, P., Behnke, O., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schorner-Sadenius, T., Schwartz, J., Shcheglova, L. M., Behr, J., Shehzadi, R., Shevchenko, R., Shkola, O., Singh, I., Skillicorn, I. O., Slominski, W., Sola, V., Solano, A., Spiridonov, A., Stanco, L., Behrens, U., Stefaniuk, N., Stern, A., Stewart, T. P., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Bertolin, A., Tomaszewska, J., Trofymov, A., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Bhadra, S., Wan Abdullah, W. A. T., Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Bloch, I., Zhautykov, B. O., Zhmak, N., Zotkin, D. S., ZEUS Collaboration, Bokhonov, V., Boos, E. G., Adamczyk, L., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Adamus, M., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., D'Agostini, G., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Dusini, S., Aggarwal, R., Drugakov, V., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Antonelli, S., Golubkov, Yu. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Arslan, O., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Aushev, V., Kaur, P., Khein, L. A., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kotanski, A., Aushev, Y., Kowalski, H., Kotz, U., Kovalchuk, N., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Bachynska, O., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Maeda, J., Lukina, O. Yu., Makarenko, I., Malka, J., University of Warsaw, Faculty of Physics, and Lódz University

Subjects
HERA, ZEUS, Lepton-Nucleon Scattering, secondary [vertex], Jet (particle physics), structure function [p], momentum transfer dependence, charm [structure function], 01 natural sciences, B physics, High Energy Physics - Experiment, rapidity dependence, High Energy Physics - Experiment (hep-ex), Jets, transverse energy [jet], Medicine, Invariant mass, Charm (quantum number), Nuclear Experiment, 318 GeV-cms, path length [decay], Physics, Quantum chromodynamics, track data analysis, DESY HERA Stor, Pseudorapidity, Content (measure theory), production [bottom], 1 [higher-order], Particle physics, Nuclear and High Energy Physics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, mass [bottom], Bottom quark, Charm quark, x-dependence, measured [differential cross section], 0103 physical sciences, quantum chromodynamics, ddc:530, 010306 general physics, tables, 010308 nuclear & particles physics, business.industry, hep-ex, High Energy Physics::Phenomenology, bibliography, Deep inelastic scattering, production [charm], bottom [structure function], QCD, deep inelastic scattering [electron p], dependence [transverse energy], High Energy Physics::Experiment, business, experimental results
Abstract

The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q^2 < 1000 GeV^2 using an integrated luminosity of 354 pb^{-1}. The beauty and charm content in events with at least one jet have been extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of Q^2, Bjorken x, jet transverse energy and pseudorapidity were measured and compared with next-to-leading-order QCD calculations. The beauty and charm contributions to the proton structure functions were extracted from the double-differential cross section as a function of x and Q^2. The running beauty-quark mass, m_b at the scale m_b, was determined from a QCD fit at next-to-leading order to HERA data for the first time and found to be 4.07 \pm 0.14 (fit} ^{+0.01}_{-0.07} (mod.) ^{+0.05}_{-0.00} (param.) ^{+0.08}_{-0.05} (theo) GeV., 63 pages, 14 figures, 20 tables. Version accepted by JHEP

Published
2014
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12. Measurement of neutral current e${\ }^\pm$p cross sections at high Bjorken x with the ZEUS detector

Author

Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Arslan, O., Aushev, V., Bachynska, O., Barakbaev, A. N., Bartosik, N., Behnke, O., Behr, J., Behrens, U., Bertolin, A., Bhadra, S., Bloch, I., Bokhonov, V., Boos, E. G., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., D'Agostini, G., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Drugakov, V., Dusini, S., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Golubkov, Yu. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Kaur, P., Khein, L. A., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kotanski, A., Kotz, U., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Maeda, J., Makarenko, I., Malka, J., Martin, J. F., Mergelmeyer, S., Idris, F. Mohamad, Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Olkiewicz, K., Onishchuk, Yu., Paul, E., Perlanski, W., Perrey, H., Pokrovskiy, N. S., Proskuryakov, A. S., Przybycien, M., Raval, A., Roloff, P., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schorner-Sadenius, T., Schwartz, J., Shcheglova, L. M., Shevchenko, R., Shkola, O., Singh, I., Skillicorn, I. O., Slominski, W., Sola, V., Solano, A., Spiridonov, A., Stanco, L., Stefaniuk, N., Stern, A., Stewart, T. P., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Tomaszewska, J., Trofymov, A., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Wan Abdullah, W. A. T., Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Zhmak, N., and Zotkin, D. S.

Subjects
differential cross section: measured, electron p: deep inelastic scattering, tables, DESY HERA Stor, neutral current, positron p: deep inelastic scattering, parton: distribution function, ZEUS, momentum transfer dependence, 318 GeV-cms, x-dependence, experimental results
Abstract

Physical review / D 89(7), 072007 (2014). doi:10.1103/PhysRevD.89.072007, The neutral current ${e}^{±}p$ cross section has been measured up to values of Bjorken $x\cong 1$ with the ZEUS detector at HERA using an integrated luminosity of $187\text{}\text{}{\mathrm{pb}}^{-1}$ of ${e}^{-}p$ and $142\text{}\text{}{\mathrm{pb}}^{-1}$ of ${e}^{+}p$ collisions at $\sqrt{s}=318\text{}\text{}\mathrm{GeV}$. Differential cross sections in $x$ and ${Q}^{2}$, the exchanged boson virtuality, are presented for ${Q}^{2}\ge 725\text{}\text{}{\mathrm{GeV}}^{2}$. An improved reconstruction method and greatly increased amount of data allows a finer binning in the high-$x$ region of the neutral current cross section and leads to a measurement with much improved precision compared to a similar earlier analysis. The measurements are compared to Standard Model expectations based on a variety of recent parton distribution functions., Published by Soc., [S.l.]

Published
2014
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13. Deep inelastic cross-section measurements at large y with the ZEUS detector at HERA

Author

ZEUS Collaboration, Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Arslan, O., Aushev, V., Aushev, Y., Bachynska, O., Barakbaev, A. N., Bartosik, N., Behnke, O., Behr, J., Behrens, U., Bertolin, A., Bhadra, S., Bloch, I., Bokhonov, V., Boos, E. G., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., D'Agostini, G., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Drugakov, V., Dusini, S., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Golubkov, Yu. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Kaur, P., Khein, L. A., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kotanski, A., Kotz, U., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Maeda, J., Makarenko, I., Malka, J., Martin, J. F., Mergelmeyer, S., Idris, F. Mohamad, Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Olkiewicz, K., Onishchuk, Yu., Paul, E., Perlanski, W., Perrey, H., Pokrovskiy, N. S., Proskuryakov, A. S., Przybycien, M., Raval, A., Roloff, P., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schorner-Sadenius, T., Schwartz, J., Shcheglova, L. M., Shevchenko, R., Shkola, O., Singh, I., Skillicorn, I. O., Slominski, W., Sola, V., Solano, A., Spiridonov, A., Stanco, L., Stefaniuk, N., Stern, A., Stewart, T. P., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Tomaszewska, J., Trofymov, A., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Abdullah, W. A. T. Wan, Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Zhmak, N., and Zotkin, D. S.

Subjects
Nuclear and High Energy Physics, Particle physics, Proton, HERA, ZEUS, FOS: Physical sciences, structure function [p], momentum transfer dependence, Zeus (malware), High Energy Physics - Experiment, x-dependence, Nuclear physics, Cross section (physics), High Energy Physics - Experiment (hep-ex), measured [differential cross section], ddc:530, deep inelastic scattering [positron p], Physics, Quantum chromodynamics, Structure function, 251: 318 GeV-cms [225], Deep inelastic scattering, DESY HERA Stor, High Energy Physics::Experiment, longitudinal [structure function], experimental results
Abstract

The reduced cross sections for $e^{+}p$ deep inelastic scattering have been measured with the ZEUS detector at HERA at three different centre-of-mass energies, $318$, $251$ and $225$ GeV. The cross sections, measured double differentially in Bjorken $x$ and the virtuality, $Q^2$, were obtained in the region $0.13\ \leq\ y\ \leq\ 0.75$, where $y$ denotes the inelasticity and $5\ \leq\ Q^2\ \leq\ 110$ GeV$^2$. The proton structure functions $F_2$ and $F_L$ were extracted from the measured cross sections., Comment: 39 pages, 9 figures. To be submitted to Phys. Lett

Published
2014
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14. Deep inelastic cross-section measurements at large y with the ZEUS detector at HERA arXiv

Author

Abramowicz, H., Abt, I., Barakbaev, A. N., Maeda, J., Mergelmeyer, S., Idris, F. Mohamad, Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Bartosik, N., Olkiewicz, K., Onishchuk, Yu., Paul, E., Perlanski, W., Perrey, H., Proskuryakov, A. S., Pokrovskiy, N. S., Przybycien, M., Raval, A., Roloff, P., Behnke, O., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schorner-Sadenius, T., Schwartz, J., Shcheglova, L. M., Behr, J., Shkola, O., Shevchenko, R., Singh, I., Slominski, W., Skillicorn, I. O., Sola, V., Solano, A., Spiridonov, A., Stanco, L., Stefaniuk, N., Behrens, U., Stern, A., Stewart, T. P., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Trofymov, A., Bertolin, A., Tomaszewska, J., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Wan Abdullah, W. A. T., Bhadra, S., Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Bloch, I., Zhmak, N., Zotkin, D. S., ZEUS Collaboration, Bokhonov, V., Boos, E. G., Adamczyk, L., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Adamus, M., Ciborowski, J., Cooper-Sarkar, A. M., Ciesielski, R., Corradi, M., Corriveau, F., D'Agostini, G., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Drugakov, V., Aggarwal, R., Dusini, S., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Antonelli, S., Golubkov, Yu. A., Grebenyuk, J., Grzelak, G., Gregor, I., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Arslan, O., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Aushev, V., Khein, L. A., Kaur, P., Kisielewska, D., Klein, U., Klanner, R., Kondrashova, N., Kononenko, O., Korzhavina, I. A., Korol, Ie., Kotanski, A., Aushev, Y., Kotz, U., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Bachynska, O., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Makarenko, I., Malka, J., and Martin, J. F.

Subjects
DESY HERA Stor, measured [differential cross section], High Energy Physics::Experiment, ZEUS, deep inelastic scattering [positron p], structure function [p], 251: 318 GeV-cms [225], momentum transfer dependence, longitudinal [structure function], x-dependence, experimental results
Abstract

The reduced cross sections for ${e}^{+}p$ deep inelastic scattering have been measured with the ZEUS detector at HERA at three different center-of-mass energies, 318, 251 and 225 GeV. The cross sections, measured double differentially in Bjorken $x$ and the virtuality, ${Q}^{2}$, were obtained in the region $0.13\le y\le 0.75$, where $y$ denotes the inelasticity and $5\le {Q}^{2}\le 110\text{}\text{}{\mathrm{GeV}}^{2}$. The proton structure functions ${F}_{2}$ and ${F}_{L}$ were extracted from the measured cross sections.

Published
2014

15. Measurement of neutral current e±p cross sections at high Bjorken x with the ZEUS detector

Author

Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Arslan, O., Aushev, V., Aushev, Y., Bachynska, O., Barakbaev, A. N., Bartosik, N., Behnke, O., Behr, J., Behrens, U., Bertolin, A., Bhadra, S., Bloch, I., Bokhonov, V., Boos, E. G., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper Sarkar, A. M., Corradi, M., Corriveau, F., D’Agostini, G., Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Drugakov, V., Dusini, S., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Golubkov, Y. u. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Kaur, P., Khein, L. A., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, I. e., Korzhavina, I. A., Kotański, A., Kötz, U., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Lobodzinska, E., Lohmann, W., Löhr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Y. u., Maeda, J., Makarenko, I., Malka, J., Martin, J. F., Mergelmeyer, S., Mohamad Idris, F., Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Olkiewicz, K., Onishchuk, Y. u., Paul, E., Perlański, W., Perrey, H., Pokrovskiy, N. S., Proskuryakov, A. S., Przybycień, M., Raval, A., Roloff, P., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schörner Sadenius, T., Schwartz, J., Shcheglova, L. M., Shevchenko, R., Shkola, O., Singh, I., Skillicorn, I. O., Słomiński, W., Sola, Valentina, Solano, Ada Maria, Spiridonov, A., Stanco, L., Stefaniuk, N., Stern, A., Stewart, T. P., Stopa, P., Sztuk Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Tomaszewska, J., Trofymov, A., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Wan Abdullah, W. A. T., Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Żarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Zhmak, N., and Zotkin, D. S.

Subjects
HERA, ZEUS
Published
2014

16. Measurement of neutral current e+/-p cross sections at high Bjorken x with the ZEUS detector

Author

ZEUS Collaboration, Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Arslan, O., Aushev, V., Aushev, Y., Bachynska, O., Barakbaev, A. N., Bartosik, N., Behnke, O., Behr, J., Behrens, U., Bertolin, A., Bhadra, S., Bloch, I., Bokhonov, V., Boos, E. G., Borras, K., Brock, I., Brugnera, R., Bruni, A., Brzozowska, B., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Corriveau, F., Agostini, G. D, Dementiev, R. K., Devenish, R. C. E., Dolinska, G., Drugakov, V., Dusini, S., Ferrando, J., Figiel, J., Foster, B., Gach, G., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Gogota, O., Golubkov, Yu. A., Grebenyuk, J., Gregor, I., Grzelak, G., Gueta, O., Guzik, M., Hain, W., Hartner, G., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Iudin, A., Januschek, F., Kadenko, I., Kananov, S., Kanno, T., Karshon, U., Kaur, M., Kaur, P., Khein, L. A., Kisielewska, D., Klanner, R., Klein, U., Kondrashova, N., Kononenko, O., Korol, Ie., Korzhavina, I. A., Kotanski, A., Koetz, U., Kovalchuk, N., Kowalski, H., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Lisovyi, M., Lobodzinska, E., Lohmann, W., Loehr, B., Lohrmann, E., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., Maeda, J., Makarenko, I., Malka, J., Martin, J. F., Mergelmeyer, S., Idris, F. Mohamad, Mujkic, K., Myronenko, V., Nagano, K., Nigro, A., Nobe, T., Notz, D., Nowak, R. J., Olkiewicz, K., Onishchuk, Yu., Paul, E., Perlanski, W., Perrey, H., Pokrovskiy, N. S., Proskuryakov, A. S., Przybycien, M., Raval, A., Roloff, P., Rubinsky, I., Ruspa, M., Samojlov, V., Saxon, D. H., Schioppa, M., Schmidke, W. B., Schneekloth, U., Schoerner-Sadenius, T., Schwartz, J., Shcheglova, L. M., Shevchenko, R., Shkola, O., Singh, I., Skillicorn, I. O., Slominski, W., Sola, V., Solano, A., Spiridonov, A., Stanco, L., Stefaniuk, N., Stern, A., Stewart, T. P., Stopa, P., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tassi, E., Temiraliev, T., Tokushuku, K., Tomaszewska, J., Trofymov, A., Trusov, V., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Viazlo, O., Walczak, R., Abdullah, W. A. T. Wan, Wichmann, K., Wing, M., Wolf, G., Yamada, S., Yamazaki, Y., Zakharchuk, N., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Zhmak, N., and Zotkin, D. S.

Subjects
tables, neutral current, FOS: Physical sciences, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), ZEUS, momentum transfer dependence, x-dependence, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), DESY HERA Stor, measured [differential cross section], deep inelastic scattering [electron p], ddc:530, High Energy Physics::Experiment, deep inelastic scattering [positron p], distribution function [parton], 318 GeV-cms, experimental results
Abstract

The neutral current e+/-p cross section has been measured up to values of Bjorken x of approximately 1 with the ZEUS detector at HERA using an integrated luminosity of 187 inv. pb of e-p and 142 inv. pb of e+p collisions at sqrt(s) = 318GeV. Differential cross sections in x and Q2, the exchanged boson virtuality, are presented for Q2 geq 725GeV2. An improved reconstruction method and greatly increased amount of data allows a finer binning in the high-x region of the neutral current cross section and leads to a measurement with much improved precision compared to a similar earlier analysis. The measurements are compared to Standard Model expectations based on a variety of recent parton distribution functions., 39 pages, 9 figures

Published
2013
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17. Further studies of isolated photon production with a jet in deep inelastic scattering at HERA

Author

Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Antonelli, S., Aushev, V., Behnke, O., Behrens, U., Bertolin, A., Bloch, I., Brock, I., Brook, N. H., Brugnera, R., Bruni, A., Bussey, P. J., Caldwell, A., Capua, M., Catterall, C. D., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, A. M., Corradi, M., Dementiev, R. K., Devenish, R. C. E., Dusini, S., Foster, B., Gach, G., Gallo, E., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, L. K., Golubkov, Yu A., Grzelak, G., Guzik, M., Hochman, D., Hori, R., Ibrahim, Z. A., Iga, Y., Ishitsuka, M., Jomhari, N. Z., Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Aggarwal, R., Kisielewska, D., Klanner, R., Klein, U., Korzhavina, I. A., Kotański, A., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Levchenko, B. B., Levy, A., Lisovyi, M., Lobodzinska, E., Löhr, B., Lohrmann, E., Longhin, A., Lukina, OYu, Malka, J., Mohamad Idris, Faridah, Mohammad Nasir, N., Myronenko, V., Nagano, K., Onishchuk, Yu, Paul, E., Perlański, W., Pokrovskiy, N. S., Przybycien, M., Ruspa, M., Saxon, D. H., Schioppa, M., Schneekloth, U., Schoerner-Sadenius, Thomas, Shcheglova, L. M., Shkola, O., Shyrma, Yu, Skillicorn, I. O., Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., Stern, A., Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Wan Abdullah, Wan Ahmad Tajuddin, Wichmann, K., Wing, M., Yamada, S., Yamazaki, Y., Żarnecki, A. F., Zawiejski, L., Zenaiev, O., Zhautykov, B. O., Gwenlan, C., Hlushchenko, O., Polini, A., Mastroberardino, A., and Aushev, Y.

Subjects
electron p: deep inelastic scattering, photon: transverse energy, photon: production, higher-order: 1, perturbation theory: higher-order, ZEUS, photon: energy, 7. Clean energy, energy dependence, rapidity dependence, differential cross section: measured, DESY HERA Stor, electron p: colliding beams, transverse momentum: factorization, quantum chromodynamics: perturbation theory, numerical calculations: Monte Carlo, transverse energy: high, experimental results
Abstract

Journal of high energy physics : JHEP 2018(1), 32 (2018). doi:10.1007/JHEP01(2018)032, Published by Springer, Berlin

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

Author

Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Antonelli, S., Aushev, V., Behnke, O., Behrens, U., Bertolin, A., Bloch, I., Brock, I., Brook, NH, Brugnera, R., Bruni, A., Bussey, PJ, Caldwell, A., Capua, M., Catterall, CD, Chwastowski, J., Ciborowski, J., Ciesielski, R., Cooper-Sarkar, AM, Corradi, M., Dementiev, RK, Devenish, RCE, Dusini, S., Foster, B., Gach, G., Gallo, E., Garfagnini, A., Geiser, A., Gizhko, A., Gladilin, LK, Golubkov, Yu A, Grzelak, G., Guzik, M., Hochman, D., Hori, R., Ibrahim, ZA, Iga, Y., Ishitsuka, M., Jomhari, NZ, Kadenko, I., Kananov, S., Karshon, U., Kaur, P., Aggarwal, R., Kisielewska, D., Klanner, R., Klein, U., Korzhavina, IA, Kotański, A., Kovalchuk, N., Kowalski, H., Krupa, B., Kuprash, O., Kuze, M., Levchenko, BB, Levy, A., Lisovyi, M., Lobodzinska, E., Löhr, B., Lohrmann, E., Longhin, A., Lukina, OYu, Malka, J., Mohamad Idris, F., Mohammad Nasir, N., Myronenko, V., Nagano, K., Onishchuk, Yu, Paul, E., Perlański, W., Pokrovskiy, NS, Przybycien, M., Ruspa, M., Saxon, DH, Schioppa, M., Schneekloth, U., Schörner-Sadenius, T., Shcheglova, LM, Shkola, O., Shyrma, Yu, Skillicorn, IO, Słomiński, W., Solano, A., Stanco, L., Stefaniuk, N., Stern, A., Stopa, P., Sztuk-Dambietz, J., Tassi, E., Tokushuku, K., Tomaszewska, J., Tsurugai, T., Turcato, M., Turkot, O., Tymieniecka, T., Verbytskyi, A., Wan Abdullah, WAT, Wichmann, K., Wing, M., Yamada, S., Yamazaki, Y., Żarnecki, AF, Zawiejski, L., Zenaiev, O., Zhautykov, BO, Gwenlan, C., Hlushchenko, O., Polini, A., Mastroberardino, A., and Aushev, Y.

Subjects
photon: transverse energy, electron p: deep inelastic scattering, photon: production, higher-order: 1, perturbation theory: higher-order, ZEUS, photon: energy, 7. Clean energy, energy dependence, rapidity dependence, differential cross section: measured, DESY HERA Stor, electron p: colliding beams, transverse momentum: factorization, quantum chromodynamics: perturbation theory, numerical calculations: Monte Carlo, transverse energy: high, experimental results
Abstract

Journal of high energy physics 1801(01), 032 (2018). doi:10.1007/JHEP01(2018)032, Isolated photons with high transverse energy have been studied in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326 pb$^{−1}$ in the range of exchanged-photon virtuality 10-350 GeV$^{2}$. Outgoing isolated photons with transverse energy 4 < E$_{T}^{γ}$ < 15 GeV and pseudorapidity − 0.7 < η$^{γ}$ < 0.9 were measured with accompanying jets having transverse energy and pseudorapidity 2.5 < E$_{T}^{jet}$ < 35 GeV and −1.5 < η$^{jet}$ < 1.8, respectively. Differential cross sections are presented for the following variables: the fraction of the incoming photon energy and momentum that is transferred to the outgoing photon and the leading jet, the fraction of the incoming proton energy transferred to the photon and leading jet, the differences in azimuthal angle and pseudorapidity between the outgoing photon and the leading jet and between the outgoing photon and the scattered electron. Comparisons are made with theoretical predictions: a leading-logarithm Monte Carlo simulation, a next-to-leading-order QCD prediction, and a prediction using the k$_{T}$ -factorisation approach., Published by Springer, Berlin

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