Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Bar Shalom, S."'
Publikováno v:
Phys.Rev. D64 (2001) 095008
We consider new s-channel scalar exchanges in top quark and massive gauge-bosons pair production in e+e- collisions, in supersymmetry with a small lepton number violation. We show that a soft bilinear lepton number violating term in the scalar potent
Externí odkaz:
http://arxiv.org/abs/hep-ph/0106053
Publikováno v:
Phys.Lett. B500 (2001) 297-303
We consider new s-channel scalar exchanges in e+e- -> ZZ,W+W- in supersymmetry with a small lepton number violation. We show that a small bilinear R-parity violating term which leads to sneutrino--Higgs mixing can give rise to a significant scalar re
Externí odkaz:
http://arxiv.org/abs/hep-ph/0005295
Autor:
Bar-Shalom, S., Wudka, J.
Publikováno v:
Phys.Rev.D60:094016,1999
We perform a global analysis of the sensitivity of LEP2 and e^+e^- colliders with a c.m. energy in the range 500 - 2000 GeV to new flavor-changing single top quark production in the effective Lagrangian approach. The processes considered are sensitiv
Externí odkaz:
http://arxiv.org/abs/hep-ph/9905407
Autor:
Bar-Shalom, S., Wudka, J.
Publikováno v:
Phys.Rev.Lett. 86 (2001) 3722-3725
We consider the inclusive reaction \ell^+ \ell^- -> nb +X (n = number of b-jets) in lepton colliders for which we propose a useful approximately conserved quantum number b_P=(-1)^n that we call b-Parity (b_P). We make the observation that the Standar
Externí odkaz:
http://arxiv.org/abs/hep-ph/9904365
Publikováno v:
Phys. Rev. D 60, 035007 (1999)
Widths for the new flavor changing top quark decay t-->c+sneutrino or for the reversed sneutrino decay sneutrino-->t+c(bar) are calculated in the MSSM without R-parity conservation. For large \tan\beta, e.g., \tan\beta ~ m_t/m_b ~ 40, Br(t-->c+sneutr
Externí odkaz:
http://arxiv.org/abs/hep-ph/9812518
Autor:
Bar-Shalom, S., Eilam, G.
We discuss the prospects - within several models - for the observation of CP-violation (CPV) in top decays and production. The outlook looks best for t -> bW at the LHC (MSSM CPV), t -> b \tau \nu_\tau at TeV3, LHC and NLC (H^+ CPV), p p-bar -> t b-b
Externí odkaz:
http://arxiv.org/abs/hep-ph/9810234
R-parity violation and uses of the rare decay sneutrino-->gamma+gamma in hadron and photon colliders
Publikováno v:
Phys.Rev. D59 (1999) 035010
We consider implications of the loop process sneutrino -> gamma gamma in the MSSM with R-parity violation for future experiments, where the sneutrino is produced as the only supersymmetric particle. We present a scenario for the R-parity violating co
Externí odkaz:
http://arxiv.org/abs/hep-ph/9809253
Publikováno v:
Phys.Rev. D59 (1999) 055012
The sneutrino resonance reactions p \bar p -> sneutrino -> l^+ l^- +X, for l=e,\mu,\tau, in the MSSM without R-parity are considered. We perform a cross-section analysis and show that present limits on some products of R-parity violating couplings in
Externí odkaz:
http://arxiv.org/abs/hep-ph/9804339
Publikováno v:
Phys. Rev. D 59, 055012 (1999)
We consider the sneutrino resonance reaction l^+ l^- -> sneutrino -> tau^+ tau^- in the MSSM without R-parity. We introduce new CP-violating and CP-conserving tau-spin asymmetries which are generated already at the tree-level if there is sneutrino -
Externí odkaz:
http://arxiv.org/abs/hep-ph/9802251
Publikováno v:
Phys.Rev. D57 (1998) 1495-1517
CP-nonconserving effects in the reaction p p-bar -> t b-bar +X -> W^+ b b-bar +X, driven by the supersymmetric CP-odd phase of the stop trilinear soft breaking term, \arg(A_t), are studied. We discuss the CP-nonconserving effects in both production a
Externí odkaz:
http://arxiv.org/abs/hep-ph/9708357