Searching for supersymmetry in rare B decays

Journal Article · Thu May 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.5549· OSTI ID:562446

Hewett, J L; Wells, J D ^[1]

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1. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)

We quantify the ability of B factories to observe supersymmetric contributions to the rare decays B{r_arrow}X{sub s}{gamma} and B{r_arrow}X{sub s}l{sup +}l{sup {minus}}. A global fit to the Wilson coefficients which contribute to these decays is performed from Monte Carlo generated data on B(B{r_arrow}X{sub s}{gamma}) and the kinematic distributions associated with the final state lepton pair in B{r_arrow}X{sub s}l{sup +}l{sup {minus}}. This fit is then compared to supersymmetric predictions. Evaluation of the Wilson coefficients is carried out with several different patterns of the superpartner spectrum. We find that B factories will be able to probe regions of the supersymmetry parameter space not accessible to CERN LEP II, the Fermilab Tevatron, and perhaps the CERN LHC. We also employ the recent NLO calculation of the matrix elements for B{r_arrow}X{sub s}{gamma} and find the bound m{sub H{sup {plus_minus}}}{gt}300GeV in two-Higgs-doublet models using present data. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Stanford Linear Accelerator Center
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 562446
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
B MESONS
MONTE CARLO METHOD
RADIATIVE DECAY
SEMILEPTONIC DECAY
SPARTICLES
SPECTRA
SUPERSYMMETRY
UNIFIED GAUGE MODELS