Abstract
Measurements of the cross sections for charged current deep inelastic scattering in e − p collisions with longitudinally polarised electron beams are presented. The measurements are based on a data sample with an integrated luminosity of 175 pb−1 collected with the ZEUS detector at HERA at a centre-of-mass energy of 318 GeV. The total cross section is given for positively and negatively polarised electron beams. The differential cross-sections d σ/dQ 2, d σ/dx and d σ/dy are presented for Q 2>200 GeV2. The double-differential cross-section d 2 σ/dxdQ 2 is presented in the kinematic range 280<Q 2<30 000 GeV2 and 0.015<x<0.65. The measured cross sections are compared with the predictions of the Standard Model.
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Deceased.
Also affiliated with University College London, United Kingdom.
Now at University of Liverpool, UK.
On leave of absence at CERN, Geneva, Switzerland.
Now at CERN, Geneva, Switzerland.
Now at Bologna University, Bologna, Italy.
Also at Institut of Theoretical and Experimental Physics, Moscow, Russia.
Also at INP, Cracow, Poland.
Also at FPACS, AGH-UST, Cracow, Poland.
Partially supported by Warsaw University, Poland.
Partly supported by Moscow State University, Russia.
Royal Society of Edinburgh, Scottish Executive Support Research Fellow.
Now at University of Salerno, Italy.
Also affiliated with DESY, Germany.
Also at University of Tokyo, Japan.
Now at Kobe University, Japan.
V. Aushev: Supported by DESY, Germany.
Partly supported by Russian Foundation for Basic Research grant no. 05-02-39028-NSFC-a.
STFC Advanced Fellow.
Nee Korcsak-Gorzo.
This material was based on work supported by the National Science Foundation, while working at the Foundation.
Now at University of Kansas, Lawrence, USA.
Also at Max Planck Institute, Munich, Germany, Alexander von Humboldt Research Award.
Also working at Max Planck Institute, Munich, Germany.
Now at KEK, Tsukuba, Japan.
Now at Nagoya University, Japan.
Member of Department of Radiological Science, Tokyo Metropolitan University, Japan.
Now at SunMelx Co. Ltd., Tokyo, Japan.
Also at Hamburg University, Inst. of Exp. Physics, Alexander von Humboldt Research Award and partially supported by DESY, Hamburg, Germany.
Also at Łódź University, Poland.
Member of Łódź University, Poland.
Also at University of Podlasie, Siedlce, Poland.
Now at Lund Universtiy, Lund, Sweden.
Now at Institute of Aviation, Warsaw, Poland.
Supported by the research grant no. 1 P03B 04529 (2005–2008).
This work was supported in part by the Marie Curie Actions Transfer of Knowledge project COCOS (contract MTKD-CT-2004-517186).
Now at University of Bonn, Germany.
Now at DESY group FEB, Hamburg, Germany.
Also at Moscow State University, Russia.
Supported by the Natural Sciences and Engineering Research Council of Canada (NSERC).
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The ZEUS Collaboration., Chekanov, S., Derrick, M. et al. Measurement of charged current deep inelastic scattering cross sections with a longitudinally polarised electron beam at HERA. Eur. Phys. J. C 61, 223–235 (2009). https://doi.org/10.1140/epjc/s10052-009-1015-1
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DOI: https://doi.org/10.1140/epjc/s10052-009-1015-1