We explore the phenomenological implications on charged lepton flavor violating (LFV) processes from slepton flavor mixing within the Minimal Supersymmetric Standard Model. We work under the model-independent hypothesis of general flavor mixing in the slepton sector, being parametrized by a complete set of dimensionless δ AB ij (A, B = L, R; i, j = 1, 2, 3, i = j) parameters. The present upper bounds on the most relevant LFV processes, together with the requirement of compatibility in the choice of the MSSM parameters with the recent LHC and (g − 2) µ data, lead to updated constraints on all slepton flavor mixing parameters. A comparative discussion of the most effective LFV processes to constrain the various generation mixings is included.

We explore the phenomenological implications on nonminimal flavor violating (NMFV) processes from squark flavor mixing within the minimal supersymmetric standard model (MSSM). We work under the model-independent hypothesis of general flavor mixing in the squark sector, being parametrized by a complete set of dimensionless δ AB ij (A; B ¼ L; R; i; j ¼ u; c; t or d; s; b; i ≠ j) parameters. The present upper bounds on the most relevant NMFV processes, together with the requirement of compatibility in the choice of the MSSM parameters with the recent LHC and ðg − 2Þ μ data, lead to updated constraints on all squark flavor mixing parameters.

We present one-loop corrections to the Higgs boson masses in the MSSM with NonMinimal Flavor Violation. The flavor violation is generated from the hypothesis of general flavor mixing in the squark mass matrices, and these are parametrized by a complete set ofWe calculate the corrections to the Higgs masses in terms of these δ XY ij taking into account all relevant restrictions from B-physics data. This includes constraints from BR(B → X s γ), BR(B s → µ + µ − ) and ∆M Bs . After taking into account these constraints we find sizable corrections to the Higgs boson masses, in the case of the lightest MSSM Higgs boson mass exceeding tens of GeV. These corrections are found mainly for the low tan β case. In the case of a Higgs boson mass measurement these corrections might be used to set further constraints on δ XY ij .

The recent discovery of a SM-like Higgs boson at the LHC, with a mass around 125-126 GeV, together with the absence of results in the direct searches for supersymmetry, is pushing the SUSY scale (m SUSY ) into the multi-TeV range. This discouraging situation from a low-energy SUSY point of view has its counterpart in indirect SUSY observables which present a nondecoupling behavior with m SUSY . This is the case of the one-loop lepton flavor violating Higgs decay rates induced by SUSY, which are shown here to remain constant as m SUSY grows, for large m SUSY > 2 TeV values and for all classes of intergenerational mixing in the slepton sector, LL, LR, RL and RR. In this work we focus on the LFV decays of the three neutral MSSM Higgs bosons h, H, A → τ µ, considering the four types of slepton mixing (δ LL 23 , δ LR 23 , δ RL 23 , δ RR 23 ), and show that all the three channels could be measurable at the LHC, being h → τ µ the most promising one, with up to about hundred of events expected with the current LHC center-ofmass energy and luminosity. The most promising predictions for the future LHC stage are also included. * The absence of any experimental signal, so far, in the searches for supersymmetry (SUSY) at the LHC [1] and the discovery of a new Higgs-like particle by ATLAS [2] and CMS [3] with a mass m H SM 125-126 GeV, are pushing the SUSY mass parameters above the 1-TeV range. On one hand, the present lower mass bounds for squarks of the first and second generations and for gluinos are already above 1 TeV, and on the other hand, if the observed Higgs boson is identified with the lightest Higgs boson h of the Minimal Supersymmetric Standard Model (MSSM), a radiatively corrected mass m h 125-126 GeV also implies rather heavy squark masses of the third generation (mainly stop masses) at or larger than 1 TeV. In principle, to place the SUSY masses at the multi-TeV range seems discouraging, both from an experimental point of view due to the inability to detect SUSY directly, and from a theoretical point of view, in regard to the naturalness of the theory, which contrarily suggests a soft SUSY-breaking scale, m SUSY , at or below the TeV scale. However, leaving the naturalness issue aside, the MSSM scenarios with very heavy SUSY masses can have other interesting aspects [4]. In particular, this is the case of specific Higgs boson observables, like certain Higgs partial decay widths, which present a non-decoupling behavior with m SUSY , as shown, for instance, in [5][6][7][8][9], opening a new window to the indirect detection of heavy SUSY. As it is well known, the decoupling of SUSY radiative corrections in the asymptotic large SUSY mass limit is valid for SUSY theories with an exact gauge symmetry, in agreement with the general decoupling behavior of heavy states in Quantum Field Theory as stated in the famous Appelquist-Carazzone theorem [10]. Nevertheless, it is also known that this theorem does not apply to theories with spontaneously broken gauge symmetries, nor with chiral fermions, which is the case of the M...

Erratum to: JHEP09(2013)160ArXiv ePrint: 1304.3371In this short note we have reviewed the numerical results of the rates for the h, H, A → τ µ decay channels that are originated from slepton flavor mixings of LR and RL types after correcting a detected bug in our FORTRAN code used in [1]. We have found an unfortunate missing global 1/ √ 2 factor in the contribution to the LR and RL form factors from the vertex diagram with two sleptons and one neutralino in the triangular loop, which once introduced it turns out that produces a cancellation among the dominant nondecoupling contributions, i.e. constant with the large m SUSY scale, from this diagram and the external leg loop diagram with one slepton and one neutralino in the loop. These two diagrams are the dominant ones in the LR and RL cases and when added and after correcting the mentioned mistake, it results in a total decoupling behavior with the large m SUSY scale instead of the total non-decoupling behavior wrongly obtained before. There is consequently a considerable reduction of all the LFV ratios ifδ LR 23 (orδ RL 23 ) is the responsible of the flavor slepton mixing. We have redone all the plots referred to these two parameters in [1] and we present them here. The plots for the predictions of the LHC rates due to these LR and RL parameters (figures 7 and 8) are then strongly affected. We conclude here that no measurable rates can be found at the LHC if the flavor mixing between the second and the third slepton generations is of LR (or RL) type. Therefore, the results of figures 9 and 10 would be equivalent to have only δ LL 23 = 0.9 as in figure 6. All the results for mixings of LL and RR types in [1] remain valid and they are not affected at all by this mistake.