Published June 5, 2009
| Version v1
Journal article
Search for Exclusive Z-Boson Production and Observation of High-Mass pp→pγγp→pl+l-p Events in pp Collisions at √(s)=1.96 TeV
Creators
- Aaltonen, T.1
- Maki, T.1
- Mehtala, P.1
- Orava, R.1
- Osterberg, K.1
- Saarikko, H.1
- Remortel, N. van1
- Adelman, J.2
- Brubaker, E.2
- Fedorko, W. T.2
- Grosso-Pilcher, C.2
- Ketchum, W.2
- Kim, Y. K.2
- Krop, D.2
- Kwang, S.2
- Lee, H. S.2
- Paramonov, A. A.2
- Schmidt, M. A.2
- Shiraishi, S.2
- Shochet, M.2
- and others
- CDF Collaboration
- 1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
- 2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
Description
This Letter presents a search for exclusive Z boson production in proton-antiproton collisions at √(s)=1.96 TeV, using the CDF II detector. No exclusive Z→l+l- candidates are observed and the first upper limit on the exclusive Z cross section in hadron collisions is found to be σexcl(Z)<0.96 pb at 95% confidence level. In addition, eight candidate exclusive dilepton events from the process pp→pγγp→pl+l-p are observed, and a measurement of the cross section for Mll>40 GeV/c2 and |ηl|<4 is found to be σ=0.24-0.10+0.13 pb, which is consistent with the standard model prediction.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.102.222002;
- arXiv
- arXiv:0902.2816v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 102
- Journal Issue
- 22
- Journal Page Range
- p. 222002-222002.7
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41061671
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CROSS SECTIONS; FERMILAB COLLIDER DETECTOR; HADRONS; MASS; PROTON-ANTIPROTON INTERACTIONS; PROTON-PROTON INTERACTIONS; STANDARD MODEL; TEV RANGE 01-10; Z NEUTRAL BOSONS
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GRAND UNIFIED THEORY; HADRON-HADRON INTERACTIONS; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; NUCLEON-ANTINUCLEON INTERACTIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; RADIATION DETECTORS; TEV RANGE; UNIFIED GAUGE MODELS
Optional Information
- Notes
- (c) 2009 The American Physical Society
- Collaborations
- CDF Collaboration