Gluino polarization at the LHC
- 1. Institut fuer Theoretische Physik E, RWTH Aachen University, D-52074 Aachen (Germany)
- 2. Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)
- 3. Deutsches Elektronen-Synchrotron DESY, D-22603 Hamburg (Germany)
Description
Gluinos are produced pairwise at the LHC in quark-antiquark and gluon-gluon collisions: qq, gg→g-tildeg-tilde. While the individual polarization of gluinos vanishes in the limit in which the small mass difference between L and R squarks of the first two generations is neglected, nonzero spin-spin correlations are predicted within gluino pairs. If the squark/quark charges in Majorana gluino decays are tagged, the spin correlations have an impact on the energy and angular distributions in reconstructed final states. On the other hand, the gluino polarization in single gluino production in the supersymmetric Compton process gq→g-tildeq-tildeR,L is predicted to be nonzero, and the polarization affects the final-state distributions in super-Compton events.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.80.055002;
- arXiv
- arXiv:0902.3795v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 80
- Journal Issue
- 5
- Journal Page Range
- p. 055002-055002.12
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41063739
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANGULAR DISTRIBUTION; CERN LHC; COMPTON EFFECT; CORRELATIONS; GLUON-GLUON INTERACTIONS; MASS DIFFERENCE; PARTICLE DECAY; PARTICLE PRODUCTION; POLARIZATION; QUARK-ANTIQUARK INTERACTIONS; QUARKS; SPIN; SUPERSYMMETRY
- Descriptors DEC
- ACCELERATORS; ANGULAR MOMENTUM; BASIC INTERACTIONS; CYCLIC ACCELERATORS; DECAY; DISTRIBUTION; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; FERMIONS; INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; SCATTERING; STORAGE RINGS; SYMMETRY; SYNCHROTRONS
Optional Information
- Notes
- (c) 2009 The American Physical Society