Effects of unparticles on top spin correlation at the Large Hadron Collider

Journal Article · Wed Apr 01 04:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.074019· OSTI ID:21308173

Arai, Masato ^[1]; Okada, Nobuchika ^[2]; Smolek, Karel ^[3]

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1. Center for Quantum Spacetime (CQUeST), Sogang University, Shinsu-dong 1, Mapo-gu, Seoul 121-742 (Korea, Republic of)
2. Theory Group, KEK, Tsukuba, 305-0801 (Japan)
3. Institute of Experimental and Applied Physics, Czech Technical University in Prague, Horska 3a/22, 128 00 Prague 2 (Czech Republic)

We study effects of the scale-invariant hidden sector, the unparticle, proposed by Georgi, on top spin correlation at the Large Hadron Collider. Assuming no flavor-changing interaction between the unparticles and the standard model particles, the top-antitop quark pair production process arises through virtual unparticle exchanges in the s channel, in addition to the standard model processes. In particular, we consider contributions of scalar and vector unparticles and find that these make sizable deviations of the top spin correlation from the standard model one.

• OSTI ID: 21308173
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
CORRELATIONS
FLAVOR MODEL
PAIR PRODUCTION
PARTICLES
QUARKS
S CHANNEL
SPIN
STANDARD MODEL