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arXiv · 1904.03261

Charm production in charged current deep inelastic scattering at HERA

ZEUS collaboration·I. Abt·L. Adamczyk·R. Aggarwal·V. Aushev·O. Behnke·U. Behrens·A. Bertolin·I. Bloch·I. Brock·N. H. Brook·R. Brugnera·A. Bruni·P. J. Bussey·A. Caldwell·M. Capua·C. D. Catterall·J. Chwastowski·J. Ciborowski·R. Ciesielski·A. M. Cooper-Sarkar·M. Corradi·R. K. Dementiev·S. Dusini·J. Ferrando·B. Foster·E. Gallo·D. Gangadharan·A. Garfagnini·A. Geiser·L. K. Gladilin·Yu. A. Golubkov·G. Grzelak·C. Gwenlan·D. Hochman·N. Z. Jomhari·I. Kadenko·S. Kananov·U. Karshon·P. Kaur·R. Klanner·U. Klein·I. A. Korzhavina·N. Kovalchuk·H. Kowalski·O. Kuprash·M. Kuze·B. B. Levchenko·A. Levy·B. Löhr·E. Lohrmann·A. Longhin·O. Yu. Lukina·I. Makarenko·J. Malka·S. Masciocchi·K. Nagano·J. D. Nam·J. Onderwaater·Yu. Onishchuk·E. Paul·I. Pidhurskyi·A. Polini·M. Przybycień·A. Quintero·M. Ruspa·D. H. Saxon·U. Schneekloth·T. Schörner-Sadenius·I. Selyuzhenkov·M. Shchedrolosiev·L. M. Shcheglova·O. Shkola·I. O. Skillicorn·W. Słomiński·A. Solano·L. Stanco·N. Stefaniuk·P. Stopa·B. Surrow·J. Sztuk-Dambietz·E. Tassi·K. Tokushuku·M. Turcato·O. Turkot·T. Tymieniecka·A. Verbytskyi·W. A. T. Wan Abdullah·K. Wichmann·M. Wing·S. Yamada·Y. Yamazaki·A. F. \. Zarnecki·L. Zawiejski·O. Zenaiev
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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 $200 GeV^{2}<Q^{2}<60000 GeV^{2}$ and $y<0.9$, where $Q^{2}$ is the squared four-momentum transfer and $y$ is the inelasticity. The measured cross sections of electroweak charm production are consistent with expectations from the Standard Model within the large statistical uncertainties.

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ZEUS collaboration, I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, R. K. Dementiev, S. Dusini, J. Ferrando, B. Foster, E. Gallo, D. Gangadharan, A. Garfagnini, A. Geiser, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, C. Gwenlan, D. Hochman, N. Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, R. Klanner, U. Klein, I. A. Korzhavina, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, B. B. Levchenko, A. Levy, B. Löhr, E. Lohrmann, A. Longhin, O. Yu. Lukina, I. Makarenko, J. Malka, S. Masciocchi, K. Nagano, J. D. Nam, J. Onderwaater, Yu. Onishchuk, E. Paul, I. Pidhurskyi, A. Polini, M. Przybycień, A. Quintero, M. Ruspa, D. H. Saxon, U. Schneekloth, T. Schörner-Sadenius, I. Selyuzhenkov, M. Shchedrolosiev, L. M. Shcheglova, O. Shkola, I. O. Skillicorn, W. Słomiński, A. Solano, L. Stanco, N. Stefaniuk, P. Stopa, B. Surrow, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W. A. T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A. F. \. Zarnecki, L. Zawiejski, O. Zenaiev. 2019-04-05. Charm production in charged current deep inelastic scattering at HERA. https://arxiv.org/abs/1904.03261

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