Muti-jet cross sections in charged current e{sup plus_minus}p scattering at HERA.
Jet cross sections were measured in charged-current deep inelastic e{sup {+-}}p scattering at high boson virtualities Q{sup 2} with the ZEUS detector at HERA II using an integrated luminosity of 0.36 fb{sup -1}. Differential cross sections are presented for inclusive-jet production as functions of Q{sup 2}, Bjorken x and the jet transverse energy and pseudorapidity. The dijet invariant mass cross section is also presented. Observation of three- and four-jet events in charged-current e{sup {+-}}p processes is reported for the first time. The predictions of next-to-leading-order (NLO) QCD calculations are compared to the measurements. The measured inclusive-jet cross sections are well described in shape and normalization by the NLO predictions. The data have the potential to constrain the u and d valence-quark distributions in the proton if included as input to global fits.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 940703
- Report Number(s):
- ANL/HEP/JA-62962
- Journal Information:
- Phys. Rev. D, Journal Name: Phys. Rev. D Journal Issue: 2008 Vol. 78; ISSN 1550-7998
- Country of Publication:
- United States
- Language:
- ENGLISH
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