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

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

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 187pb-1 of e-p and 142pb-1 of e+p collisions at s=318GeV. Differential cross sections in x and Q2, the exchanged boson virtuality, are presented for Q2...

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Bibliographic Details
Main Authors: Abramowicz, H, Abt, I, Adamczyk, L, Adamus, M, Aggarwal, R, Antonelli, S, Arslan, O, Aushev, V, Aushev, Y, Bachynska, O, Barakbaev, A, Bartosik, N, Behnke, O, Behr, J, Behrens, U, Bertolin, A, Bhadra, S, Bloch, I, Bokhonov, V, Boos, E, Borras, K, Brock, I, Brugnera, R, Bruni, A, Brzozowska, B
Format: Journal article
Published: 2014
Description
Summary: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 187pb-1 of e-p and 142pb-1 of e+p collisions at s=318GeV. Differential cross sections in x and Q2, the exchanged boson virtuality, are presented for Q2≥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. © 2014 American Physical Society.

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