The neutral current e±p cross section has been measured up to values of Bjorken x ≅ 1 with the ZEUS detector at HERA using an integrated luminosity of 187 pb−1 of e−p and 142 pb−1 of e+p collisions at √s=318 GeV. Differential cross sections in x and Q2, the exchanged boson virtuality, are presented for Q2 ≥ 725 GeV2. 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.

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

SOLA, VALENTINA;SOLANO, Ada Maria;
2014-01-01

Abstract

The neutral current e±p cross section has been measured up to values of Bjorken x ≅ 1 with the ZEUS detector at HERA using an integrated luminosity of 187 pb−1 of e−p and 142 pb−1 of e+p collisions at √s=318 GeV. Differential cross sections in x and Q2, the exchanged boson virtuality, are presented for Q2 ≥ 725 GeV2. 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.
2014
89
072007
-
HERA; ZEUS
H. Abramowicz;I. Abt;L. Adamczyk;M. Adamus;R. Aggarwal;S. Antonelli;O. Arslan;V. Aushev;Y. Aushev;O. Bachynska;A. N. Barakbaev;N. Bartosik...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/156877
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