Chargino mass determination at a muon collider

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.59.071701· OSTI ID:322023

Barger, V ^[1]; Berger, M S ^[2]; Han, T ^[1]

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1. Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (United States)
2. Physics Department, Indiana University, Bloomington, Indiana 47405 (United States)

We analyze the prospects at a muon collider for measuring chargino masses in the {mu}{sup +}{mu}{sup {minus}}{r_arrow}{tilde {chi}}{sup +}{tilde {chi}}{sup {minus}} process in the threshold region. We find that for a gaugino-like chargino of mass 100{endash}200 GeV, a measurement better than 50{endash}300 MeV should be possible with 50 fb{sup {minus}1} integrated luminosity. The accuracy obtained here is better than with other techniques or at other facilities. The muon sneutrino mass, which enters through the {tilde {nu}}{sub {mu}} exchange diagram, can also be simultaneously measured to a few GeV if it is not too heavy. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 322023
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 59; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
LEPTON-LEPTON INTERACTIONS
MUONS
PARTICLE PRODUCTION
REST MASS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY
SYMMETRY BREAKING
UNIFIED GAUGE MODELS