Limits on the effective quark radius from inclusive \(ep\) scattering at HERA

Limits on the effective quark radius from inclusive \(ep\) scattering at HERA

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\(...

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Veröffentlicht in:arXiv.org 2016-04
Hauptverfasser: Abt, I, Adamczyk, L, Adamus, M, Antonelli, S, Aushev, V, Behrens, U, Bhadra, S, Brock, I, Bruni, A, Bussey, P J, Caldwell, A, 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, Garfagnini, A, Geiser, A, Gizhko, A, Gladilin, L K, Golubkov, Yu A, 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, Kananov, S, Karshon, U, Kaur, P, Kisielewska, D, Klanner, R, Klein, U, Korzhavina, I A, Kotański, A, Kovalchuk, N, Krupa, B, Kuprash, O, Kuze, M, Levchenko, B B, Lisovyi, M, Lobodzinska, E, Löhr, B, Lohrmann, E, Longhin, A, Lontkovskyi, D, O Yu Lukina, Makarenko, I, Mastroberardino, A, N Mohammad Nasir, Nobe, T, Nowak, R J, Paul, E, Perlański, W, Pokrovskiy, N S, Polini, A, Przybycień, M, Roloff, P, Ruspa, M, Schioppa, M, Schneekloth, U, Schörner-Sadenius, T, Shcheglova, L M, Shkola, O, Yu Shyrma, Singh, I, Skillicorn, I O, Słomiński, W, Solano, A, Stanco, L, Stefaniuk, N, Stern, A, Stopa, P, Sukhonos, D, Tassi, E, Tokushuku, K, Tomaszewska, J, Tsurugai, T, Turcato, M, Turkot, O, Tymieniecka, T, W A T Wan Abdullah, Wichmann, K, Wing, M, Yamazaki, Y, Żarnecki, A F, Zawiejski, L, Zhautykov, B O
Format: Artikel
Sprache:eng
Schlagworte:
Distribution functions
Inelastic scattering
Luminosity
Quarks
Standard model (particle physics)
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Zusammenfassung: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.
ISSN:2331-8422