Wide Scalar Neutrino Resonance and {ital b}{ovr {ital b}} Production at the CERN Collider LEP

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.3063· OSTI ID:491655

Erler, J ^[1]; Feng, J L ^[2]; Polonsky, N ^[3]

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1. Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, California 95064 (United States)
2. Theoretical Physics Group, E.O.Lawrence Berkeley National Laboratory and Department of Physics, University of California, Berkeley, California 94720 (United States)
3. Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855-0849 (United States)

In supersymmetric models with R-parity violation, scalar neutrinos {tilde {nu}} may be produced as s-channel resonances in e{sup +}e{sup -} colliders. We note that within current constraints the scalar neutrino may have a width of several GeV into b{ovr b} and be produced with large cross section, leading to a novel supersymmetry discovery signal at the CERN collider LEP II. In addition, if m{sub {tilde {nu}}}{approx}m{sub Z}, such a resonance necessarily increases R{sub b} and reduces A{sub FB}(b), significantly improving the fit to electroweak data. Bounds from B meson and top quark decays are leading constraints, and we stress the importance of future measurements. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 491655
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
B MESONS
BOTTOMONIUM
CERN
CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
NEUTRINOS
PARITY
PARTICLE PRODUCTION
RESONANCE
S CHANNEL
SCALARS
SUPERSYMMETRY
T QUARKS
VIOLATIONS
WIDTH