Lancaster, M;
Waters, DCDFC;
(2002)
Searches for New Physics in Events with a Photon and b-quark Jet at CDF.
Physical Review D
, 65
, Article 052006. 10.1103/PhysRevD.65.052006.
Preview |
PDF
e052006.pdf Download (457kB) |
Abstract
We have searched for evidence of physics beyond the standard model in events that include an energetic photon and an energetic b-quark jet, produced in 85pb-1 of p̅ p collisions at 1.8 TeV at the Tevatron Collider at Fermilab. This signature, containing at least one gauge boson and a third-generation quark, could arise in the production and decay of a pair of new particles, such as those predicted by supersymmetry, leading to a production rate exceeding standard model predictions. We also search these events for anomalous production of missing transverse energy, additional jets and leptons (e, μ and τ), and additional b quarks. We find no evidence for any anomalous production of γb or γb+X events. We present limits on two supersymmetric models: a model where the photon is produced in the decay χ̃20→γχ̃10, and a model where the photon is produced in the neutralino decay into the gravitino LSP, χ̃10→γG̃. We also present our limits in a model-independent form and test methods of applying model-independent limits.
Type: | Article |
---|---|
Title: | Searches for New Physics in Events with a Photon and b-quark Jet at CDF |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevD.65.052006 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevD.65.052006 |
Language: | English |
Additional information: | © 2002 The American Physical Society |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/131980 |
Archive Staff Only
View Item |