Published October 26, 2009
| Version v1
Journal article
Observation of the hadronic final state charge asymmetry in high Q2 deep-inelastic scattering at HERA
Creators
- Aaron, F.D.1
- Martin, M. Aldaya2
- Alexa, C.1
- Alimujiang, K.2
- Andreev, V.3
- Antunovic, B.2
- Asmone, A.4
- Backovic, S.5
- Baghdasaryan, A.6
- Barrelet, E.7
- Bartel, W.2
- Begzsuren, K.8
- Belousov, A.3
- Bizot, J.C.9
- Boudry, V.10
- Bozovic-Jelisavcic, I.11
- Bracinik, J.12
- Brandt, G.2
- Brinkmann, M.13
- Brisson, V.9
- and others
- 1. National Institute for Physics and Nuclear Engineering (NIPNE), Bucharest (Romania)
- 2. DESY, Hamburg (Germany)
- 3. Lebedev Physical Institute, Moscow (Russian Federation)
- 4. Dipartimento di Fisica Universita di Roma Tre and INFN Roma 3, Roma (Italy)
- 5. Faculty of Science, University of Montenegro, Podgorica (Montenegro)
- 6. Yerevan Physics Institute, Yerevan (Armenia)
- 7. LPNHE, Universites Paris VI and VII, IN2P3-CNRS, Paris (France)
- 8. Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia. (Mongolia)
- 9. LAL, Univ. Paris-Sud, CNRS/IN2P3, Orsay (France)
- 10. LLR, Ecole Polytechnique, IN2P3-CNRS, Palaiseau (France)
- 11. Vinca Institute of Nuclear Sciences, Belgrade (Serbia)
- 12. School of Physics and Astronomy, University of Birmingham, Birmingham (United Kingdom)
- 13. Institut fuer Experimentalphysik, Universitaet Hamburg, Hamburg (Germany)
Description
A first measurement is presented of the charge asymmetry in the hadronic final state from the hard interaction in deep-inelastic ep neutral current scattering at HERA. The measurement is performed in the range of negative squared four momentum transfer 100<Q2<8000 GeV2. The difference between the event normalised distributions of the scaled momentum, xp, for positively and negatively charged particles, measured in the current region of the Breit frame, is studied together with its evolution as a function of Q. The results are compared to Monte Carlo models at the hadron and parton levels.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2009.09.056Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2009.09.056;
- arXiv
- arXiv:0907.2666v2;
- PII
- S0370-2693(09)01148-4;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 681
- Journal Issue
- 2
- Journal Page Range
- p. 125-133
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41086211
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; CHARGED PARTICLES; DEEP INELASTIC SCATTERING; FOUR MOMENTUM TRANSFER; HADRONS; HERA STORAGE RING; MONTE CARLO METHOD; NEUTRAL CURRENTS
- Descriptors DEC
- ALGEBRAIC CURRENTS; CALCULATION METHODS; CURRENTS; ELEMENTARY PARTICLES; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MOMENTUM TRANSFER; PARTICLE INTERACTIONS; SCATTERING; STORAGE RINGS
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.