Higgs boson interference in {mu}{sup +}{mu}{sup -}{yields}{chi}-tilde{sub i}{sup +}{chi}-tilde{sub j}{sup -} with longitudinally polarized beams

Journal Article · Tue Nov 01 04:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.095004· OSTI ID:20713862

Kittel, Olaf ^[1]; Pahlen, Federico von der ^[2]

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1. Physikalisches Institut der Universitaet Bonn, Nussallee 12, D-53115 Bonn (Germany)
2. Institut fuer Theoretische Physik und Astrophysik, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg (Germany)

We study chargino production at a muon collider with longitudinally polarized beams and center of mass energies around the heavy neutral Higgs boson resonances. We show that the interference of the CP even and CP odd Higgs bosons can be analyzed using the energy distributions of the lepton or W boson from the chargino two-body decays {chi}-tilde{sub j}{sup {+-}}{yields}l{sup {+-}}{nu}-tilde{sub l} or {chi}-tilde{sub j}{sup {+-}}{yields}W{sup {+-}}{chi}-tilde{sub 1}{sup 0}, respectively. The energy distributions depend on the longitudinal polarization of the decaying chargino, which are correlated to the muon beam polarizations. We define asymmetries in these energy distributions which allow a determination of the H and A couplings to the charginos and, in particular, of their relative phase. We analyze the asymmetries, cross sections and branching ratios in CP conserving Minimal Supersymmetric Standard Model scenarios. For nearly degenerate Higgs bosons we find maximal asymmetries which can be measured with high statistical significance.

• OSTI ID: 20713862
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BRANCHING RATIO
CENTER-OF-MASS SYSTEM
CONSERVATION LAWS
CP INVARIANCE
ENERGY SPECTRA
HIGGS BOSONS
INTERFERENCE
LEPTON-LEPTON INTERACTIONS
MUON BEAMS
MUONS MINUS
MUONS PLUS
PARTICLE DECAY
PARTICLE PRODUCTION
POLARIZATION
POLARIZED BEAMS
RESONANCE PARTICLES
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY
TWO-BODY PROBLEM
W MINUS BOSONS
W PLUS BOSONS