TY - JOUR
T1 - Bs mixing phase and lepton flavor violation in supersymmetric SU(5)
AU - Park, Jae hyeon
AU - Yamaguchi, Masahiro
N1 - Funding Information:
We thank Diego Tonelli for useful comments. Jh.P. acknowledges Research Grants funded jointly by the Italian Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR), by the University of Padova and by the Istituto Nazionale di Fisica Nucleare (INFN) within the Astroparticle Physics Project and the FA51 INFN Research Project. This research was supported in part by the European Community Research Training Network UniverseNet under contract MRTN-CT-2006-035863. The work of M.Y. was partially supported by the grants-in-aid from the Ministry of Education, Science, Sports and Culture in Japan, Nos. 16081202 and 17340062.
PY - 2009/1/5
Y1 - 2009/1/5
N2 - We inspect consequences of the latest Bs mixing phase measurements on lepton flavor violation in a supersymmetric SU(5) theory. The O (1) phase, preferring a non-vanishing squark mixing, generically implies τ → (e + μ) γ and μ → e γ. Depending on the gaugino and the scalar mass parameters as well as tan β, the rates turn out to be detectable or even already excessive, if the RR mass insertion of down-type squarks is nonzero. We find that it becomes easy to reconcile Bs mixing phase with lepton flavor violation given: gaugino to scalar squared mass ratio around 1/12, both LL and RR insertions with decent sizes, and low tan β.
AB - We inspect consequences of the latest Bs mixing phase measurements on lepton flavor violation in a supersymmetric SU(5) theory. The O (1) phase, preferring a non-vanishing squark mixing, generically implies τ → (e + μ) γ and μ → e γ. Depending on the gaugino and the scalar mass parameters as well as tan β, the rates turn out to be detectable or even already excessive, if the RR mass insertion of down-type squarks is nonzero. We find that it becomes easy to reconcile Bs mixing phase with lepton flavor violation given: gaugino to scalar squared mass ratio around 1/12, both LL and RR insertions with decent sizes, and low tan β.
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U2 - 10.1016/j.physletb.2008.11.023
DO - 10.1016/j.physletb.2008.11.023
M3 - Article
AN - SCOPUS:57649097158
SN - 0370-2693
VL - 670
SP - 356
EP - 362
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 4-5
ER -