Published May 22, 2009
| Version v1
Journal article
Measurement of the Zγ→ννγ Production Cross Section and Limits on Anomalous ZZγ and Zγγ Couplings in pp Collisions at √(s)=1.96 TeV
Creators
- Abazov, V. M.1
- Alexeev, G. D.1
- Kharzheev, Y. N.1
- Malyshev, V. L.1
- Tokmenin, V. V.1
- Vertogradov, L. S.1
- Yatsunenko, Y. A.1
- Abbott, B.2
- Gutierrez, P.2
- Hossain, S.2
- Jain, S.2
- Rominsky, M.2
- Severini, H.2
- Skubic, P.2
- Strauss, M.2
- Abolins, M.3
- Benitez, J. A.3
- Brock, R.3
- Edmunds, D.3
- Hall, I.3
- and others
- D0 Collaboration
- 1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
- 2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
- 3. Michigan State University, East Lansing, Michigan 48824 (United States)
Description
We present the first observation of the Zγ→ννγ process at the Fermilab Tevatron at 5.1 standard deviations significance, based on 3.6 fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron pp Collider at √(s)=1.96 TeV. The measured Zγ production cross section multiplied by the branching fraction of Z→νν is 32±9(stat+syst)±2(lumi) fb for the photon ET>90 GeV. It is in agreement with the standard model prediction of 39±4 fb. We set limits on anomalous trilinear Zγγ and ZZγ gauge boson couplings, most of which are the most restrictive to date.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.102.201802;
- arXiv
- arXiv:0902.2157v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 102
- Journal Issue
- 20
- Journal Page Range
- p. 201802-201802.7
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41061655
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BEAM LUMINOSITY; BRANCHING RATIO; CROSS SECTIONS; FERMILAB TEVATRON; GAMMA RADIATION; GEV RANGE 100-1000; NEUTRINOS; PAIR PRODUCTION; PHOTONS; PROTON-PROTON INTERACTIONS; STANDARD MODEL; TEV RANGE 01-10; Z NEUTRAL BOSONS
- Descriptors DEC
- ACCELERATORS; BARYON-BARYON INTERACTIONS; BOSONS; CYCLIC ACCELERATORS; DIMENSIONLESS NUMBERS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; GEV RANGE; GRAND UNIFIED THEORY; HADRON-HADRON INTERACTIONS; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; IONIZING RADIATIONS; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; RADIATIONS; SYNCHROTRONS; TEV RANGE; UNIFIED GAUGE MODELS
Optional Information
- Notes
- (c) 2009 The American Physical Society
- Collaborations
- D0 Collaboration