Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC?

Details Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC? Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC?

2010-12-05

arxiv.org/abs/1012.1052v2

Phys.Rev.D83:094026,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, 6 eps figures, revtex4.1. Final version to be published in PRD. (Minor changes from the first version)

Scientific paper

10.1103/PhysRevD.83.094026

The recent Belle and BaBar measurements of the branching ratio of $B^+ \to \tau^+ \nu_\tau$ indicate a significant deviation from the Standard Model prediction. We demonstrate that this measurement has a serious impact on models with minimal flavor violation involving a charged Higgs boson, ruling out a large portion of the currently-allowed parameter space. In the constrained minimal supersymmetric standard model, this creates a tension between the measurements of $B^+ \to \tau^+ \nu_\tau$ and the anomalous magnetic moment of the muon, unless $\tan\beta$ is small, $\mu > 0$, and $A_0$ takes a large negative value. In fact, a very small region of the parameter space of this model, with small values of $m_0$ and $m_{1/2}$, survives all the constraints at 95% C.L.. It is remarkable that this specific region is still consistent with the lightest supersymmetric particle as the dark matter. Moreover, it predicts observable SUSY signals in the early runs of the LHC, even perhaps at 7 TeV. We also show that a consistent explanation for the deviation of the $B^+ \to \tau^+ \nu_\tau$ branching ratio from the Standard Model can be achieved in a non-universal Higgs mass model, which could also predict early signals of supersymmetry at the LHC.

Affiliated with

Also associated with

No associations

Rating

Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-166841