Realistic models with a light U(1) gauge boson coupled to baryon number

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.484· OSTI ID:69242

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 recently showed that a new gauge boson {gamma}{sub {ital B}} coupling only to baryon number is phenomenologically allowed, even if {ital m}{sub {ital B}}{lt}{ital m}{sub {ital Z}} and {alpha}{sub {ital B}}{approx}0.2. In our previous work we assumed that kinetic mixing between the baryon number and hypercharge gauge bosons (via an {ital F}{sub {ital B}}{sup {mu}{nu}}{ital F}{sub {mu}{nu}}{sup {ital Y}} term) was small enough to evade constraints from precision electroweak measurements. In this paper we propose a class of models in which this term is naturally absent above the electroweak scale. We show that the generation of a mixing term through radiative corrections in the low-energy effective theory does not lead to a conflict with precision electroweak measurements and may provide a leptonic signal for models of this type at an upgraded Fermilab Tevatron.

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 69242
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARYON NUMBER
COUPLING
INTERMEDIATE BOSONS
MIXING
QUANTUM CHROMODYNAMICS
RADIATIVE CORRECTIONS
U-1 GROUPS