Possible light U(1) gauge boson coupled to Baryon number

Journal Article · Mon Apr 17 04:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.3122· OSTI ID:44871

Carone, C D; Murayama, H ^[1]

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1. Theoretical Physics Group, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)

We discuss the phenomenology of a light U(1) gauge boson, {gamma}{sub {ital B}}, that couples only to baryon number. We assume that the new U(1) gauge symmetry is spontaneously broken and that the {gamma}{sub {ital B}} mass {ital m}{sub {ital B}} is smaller than {ital m}{sub {ital Z}}. We show for {ital m}{sub {Upsilon}}{lt}{ital m}{sub {ital B}}{lt}{ital m}{sub {ital Z}} that the {gamma}{sub {ital B}} coupling {alpha}{sub {ital B}} can be as large as {similar_to}0.1 without conflicting with the current experimental constraints. We argue that {alpha}{sub {ital B}}{similar_to}0.1 is large enough to produce visible collider signatures and that evidence for the {gamma}{sub {ital B}} could be hidden in existing LEP data. We point out that {gamma}{sub {ital B}} exchange can account for rapidity gap events in {ital p}{minus}{ital {bar p}} scattering seen at the Tevatron.

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 44871
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARYON NUMBER
COUPLING
GAUGE INVARIANCE
INTERMEDIATE VECTOR BOSONS
PARTICLE RAPIDITY
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
U-1 GROUPS