Resonant CP violation in Higgs radiation at an e{sup +}e{sup } linear collider
Abstract
We study resonant CP violation in the Higgsstrahlung process e{sup +}e{sup }{yields}H{sub 1,2,3}(Z{yields}e{sup +}e{sup },{mu}{sup +}{mu}{sup }) and subsequent decays H{sub 1,2,3}{yields}bb,{tau}{sup }{tau}{sup +}, in the minimal supersymmetric extension of the standard model (MSSM) with Higgssector CP violation induced by radiative corrections. At a highenergy e{sup +}e{sup } linear collider, the recoilmass method enables one to determine the invariant mass of a fermion pair produced by Higgs decays with a precision as good as 1 GeV. Assuming an integrated luminosity of 100 fb{sup 1}, we show that the production line shape of a coupled system of neutral Higgs bosons decaying into bb quarks is sensitive to the CPviolating parameters. When the Higgs bosons decay into {tau}{sup }{tau}{sup +}, two CP asymmetries can be defined using the longitudinal and transverse polarizations of the {tau} leptons. Taking into account the constraints from electric dipole moments, we find that these CP asymmetries can be as large as 80%, in a trimixing scenario where all three neutral Higgs states of the MSSM are nearly degenerate and mix significantly.
 Authors:
 Theory Division, Physics Department, CERN, CH1211 Geneva 23 (Switzerland)
 School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)
 Publication Date:
 OSTI Identifier:
 20713864
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.095006; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; CP INVARIANCE; ELECTRIC DIPOLE MOMENTS; ELECTRONPOSITRON INTERACTIONS; GEV RANGE; HIGGS BOSONS; HIGGS MODEL; LEPTONIC DECAY; LINEAR COLLIDERS; MUONS MINUS; MUONS PLUS; PAIR PRODUCTION; POLARIZATION; QUARKS; RADIATIVE CORRECTIONS; STANDARD MODEL; SUPERSYMMETRY; TAU PARTICLES; Z NEUTRAL BOSONS
Citation Formats
Ellis, John, Lee, Jae Sik, and Pilaftsis, Apostolos. Resonant CP violation in Higgs radiation at an e{sup +}e{sup } linear collider. United States: N. p., 2005.
Web. doi:10.1103/PhysRevD.72.095006.
Ellis, John, Lee, Jae Sik, & Pilaftsis, Apostolos. Resonant CP violation in Higgs radiation at an e{sup +}e{sup } linear collider. United States. doi:10.1103/PhysRevD.72.095006.
Ellis, John, Lee, Jae Sik, and Pilaftsis, Apostolos. Tue .
"Resonant CP violation in Higgs radiation at an e{sup +}e{sup } linear collider". United States.
doi:10.1103/PhysRevD.72.095006.
@article{osti_20713864,
title = {Resonant CP violation in Higgs radiation at an e{sup +}e{sup } linear collider},
author = {Ellis, John and Lee, Jae Sik and Pilaftsis, Apostolos},
abstractNote = {We study resonant CP violation in the Higgsstrahlung process e{sup +}e{sup }{yields}H{sub 1,2,3}(Z{yields}e{sup +}e{sup },{mu}{sup +}{mu}{sup }) and subsequent decays H{sub 1,2,3}{yields}bb,{tau}{sup }{tau}{sup +}, in the minimal supersymmetric extension of the standard model (MSSM) with Higgssector CP violation induced by radiative corrections. At a highenergy e{sup +}e{sup } linear collider, the recoilmass method enables one to determine the invariant mass of a fermion pair produced by Higgs decays with a precision as good as 1 GeV. Assuming an integrated luminosity of 100 fb{sup 1}, we show that the production line shape of a coupled system of neutral Higgs bosons decaying into bb quarks is sensitive to the CPviolating parameters. When the Higgs bosons decay into {tau}{sup }{tau}{sup +}, two CP asymmetries can be defined using the longitudinal and transverse polarizations of the {tau} leptons. Taking into account the constraints from electric dipole moments, we find that these CP asymmetries can be as large as 80%, in a trimixing scenario where all three neutral Higgs states of the MSSM are nearly degenerate and mix significantly.},
doi = {10.1103/PhysRevD.72.095006},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}

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