Solving the supersymmetric<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>problem with flavor breaking<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>F</mml:mi></mml:math>terms

Díaz-Cruz, J. Lorenzo; Ferrandis, Javier

doi:10.1103/physrevd.72.035003

Cited by 23 publications

(21 citation statements)

References 217 publications

(121 reference statements)

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“…In view of this circumstance, we had to restrict ourselves from the outset to ad hoc simplified MSSM scenarios even for simpler observables in the tt and W + W − systems (see, for example, [32]), in which case reconstruction at colliders is possible. The explicit expressions for the MSSM contributions to the amplitudes of meson mixing in the class of models involving the radiative generation of fermion masses and a review of previous publications on the subject can be found in [33]. Possible constraints on the H ± mass and, accordingly, on the contributions of box diagrams involving exchanges of H ± have not been considered there.…”

Section: Discussionmentioning

confidence: 99%

“…Possible constraints on the H ± mass and, accordingly, on the contributions of box diagrams involving exchanges of H ± have not been considered there. According to [33], the MSSM contributions increase strongly at unacceptably large values of about 40 to 50 for tanβ and a specific choice of phases and relations between the superpartner and gaugino masses. As was indicated above, a totally different situation in which the MSSM contributions can be suppressed by moving to the parameter-space region where tanβ takes moderate values and where the superpartner masses are degenerate has been considered in the present study.…”

Section: Discussionmentioning

confidence: 99%

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10.1007/s11450-008-2018-3

Dubinin¹,

Sukachev

2010

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Mixing in the systems of neutral K 0 and B 0 mesons is considered within the minimal supersymmetric standard model (MSSM) containing a type-II Yukawa sector and featuring an explicit CP violation in the Higgs potential. In the case of a strong mixing of CP -even and CP -odd states, the model admits the presence of a light charged Higgs boson. Basic mixing parameters are calculated. These include the mass difference ∆m LS between neutral kaons and the parameter ε, which characterizes the amount of an indirect CP violation (that is, that which arises owing to an ultraweak mixing of CP -invariant and CP -noninvariant components). In the limit of the low-energy one-loop approximation, it is shown that, for the K 0 mesons, the contribution of nonstandard-physics effects to the mass splitting of the neutral kaons and an indirect CP violation are very small and are weakly dependent on the mass of the charged Higgs boson. Under certain conditions, the nonstandard contributions for the B 0 d −B 0 d and B 0 s −B 0 s systems may become somewhat more substantial, which constrains the MSSM parameter space.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

10.1007/s11450-008-2018-3

Dubinin¹,

Sukachev

2010

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“…The rich phenomenology for the THDM has been widely studied by different theoretical and phenomenological groups. Some reports show interesting results for the Flavor-changing (FC) [2][3][4], an analysis at one-loop level for the pseudoscalar appears in [5], and at two loops in the lepton sector is found in [6]. Several experimental reports are dedicated to the exotic physics searching for new particles coming from a variety of models [7-13].…”

Section: Introductionmentioning

confidence: 99%

Brief description of the flavor-changing neutral scalar interactions at two-loop level

Gaitán

Orduz

2016

J. Phys.: Conf. Ser.

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In this letter we show a general description about flavor-changing neutral currents (FCNC) mediated by scalars. The analysis is extended at two-loop level for the Two-Higgs Doublet Model type-III because others models have strong constraints on its parameters, even at high orders of the perturbation. For this letter we focus on the standard model, calculating the amplitude for the h → γγ process and discussing the results briefly.

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“…2. Heavy masses of the first and second generation sfermions to solve the SUSY and CP flavor problems or at least to ameliorate them [81,82].…”

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confidence: 99%

Search strategies for pair production of heavy Higgs bosons decaying invisibly at the LHC

et al. 2018

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The search for heavy Higgs bosons at the LHC represents an intense experimental program, carried out by the ATLAS and CMS collaborations, which includes the hunt for invisible Higgs decays and dark matter candidates. No significant deviations from the SM backgrounds have been observed in any of these searches, imposing significant constraints on the parameter space of different new physics models with an extended Higgs sector. Here we discuss an alternative search strategy for heavy Higgs bosons decaying invisibly at the LHC, focusing on the pair production of a heavy scalar H together with a pseudoscalar A, through the production mode qq → Z * → HA. We identify as the most promising signal the final state made up of 4b + E miss T , coming from the heavy scalar decay mode H → hh → bbbb, with h being the discovered SM-like Higgs boson with m h = 125 GeV, together with the invisible channel of the pseudoscalar. We work within the context of simplified MSSM scenarios that contain quite heavy sfermions of most types with O(10) TeV masses, while the stops are heavy enough to reproduce the 125 GeV mass for the lightest SM-like Higgs boson. By contrast, the gauginos/higgsinos and the heavy MSSM Higgs bosons have masses near the EW scale. Our search strategies, for a LHC center-of-mass energy of √ s = 14 TeV, allow us to obtain statistical significances of the signal over the SM backgrounds with values up to ∼ 1.6σ and ∼ 3σ, for total integrated luminosities of 300 fb −1 and 1000 fb −1 , respectively. 1. It contains heavy stops, with large enough masses to account for the Higgs mass value (m h SM 125 GeV) through radiative corrections.3. A neutralino sector with an LSP m χ = O(100 GeV) is chosen as the dark matter candidate [83].

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Solving the supersymmetricCPproblem with flavor breakingFterms

Cited by 23 publications

References 217 publications

10.1007/s11450-008-2018-3

10.1007/s11450-008-2018-3

Brief description of the flavor-changing neutral scalar interactions at two-loop level

Search strategies for pair production of heavy Higgs bosons decaying invisibly at the LHC

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