Higgs boson masses in the MSSM with general soft breaking

In this analysis we explore the phenomenological constraints of models with non-holomorphic soft SUSY breaking terms in a beyond the MSSM scenario having identical particle content. The model referred as NHSSM shows various promising features like the possibility of a strong reduction in electroweak fine-tuning even for a scenario of a heavy higgsino type of LSP, a fact that is unavailable in pMSSM models. The other important aspect is satisfying the muon g − 2 data even for a small tan β via a small value of coupling A µ associated with the tri-linear non-holomorphic soft term. Thus, a large SUSY contribution to muon g − 2 is possible even for a significantly large smuon mass mμ 1 . The Higgs mass radiative corrections are contributed by both the holomorphic and non-holomorphic trilinear soft parameters A t and A t , thus diluting the requirement to have a larger A t to satisfy the Higgs mass data. The model also provides with valid parameter space satisfying the constraint of Br(B → X s + γ) for large values of tan β, a scenario unfavourable in pMSSM.

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“…Analyses that particularly focussed on the Higgs sector and constraints like Br(B → X s +γ) are refs. [56,57]. However, in contrast to ref.…”

Section: Jhep10(2016)027mentioning

confidence: 58%

“…However, in contrast to ref. [56] that used input parameters given entirely at the unification scale, ref. [57] analyzed in a mixed set-up where the NH parameters were given at the electroweak scale in an otherwise CMSSM type of setup.…”

Section: Jhep10(2016)027mentioning

confidence: 99%

Probing non-holomorphic MSSM via precision constraints, dark matter and LHC data

Chattopadhyay

Dey

2016

J. High Energ. Phys.

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“…Staying within an MSSM setup terms like φ 2 φ * or a higgsino mass term like ψψ can be soft SUSY breaking in nature if there is no presence of a gauge singlet field [71]. There have been several works over the past two decades [69][70][71][72][73][74][75][76][77][78][79][80][81][82] that analyzed the effects of introducing NH soft terms. 2 There are three distinct signatures i) the trilinear NH terms may enhance L-R mixing thus influencing various phenomenologies, ii) higgsinos get an additional soft-term source, iii) the Higgs potential remains unaffected at the tree level thus electroweak fine-tuning may hardly change.…”

Section: Jhep01(2018)158mentioning

confidence: 99%

“…2 There are three distinct signatures i) the trilinear NH terms may enhance L-R mixing thus influencing various phenomenologies, ii) higgsinos get an additional soft-term source, iii) the Higgs potential remains unaffected at the tree level thus electroweak fine-tuning may hardly change. The latter effect can give rise to a valid higgsino dark matter with low fine-tuning, whereas the L-R mixing effect may contribute to (g − 2) µ , Br(B → X s + γ), or the higgs mass radiative corrections [69,70,[78][79][80][81]. The NH soft terms can also influence on the scalar potential terms involving colored/charged scalars [82].…”

Section: Jhep01(2018)158mentioning

confidence: 99%

Exploring non-holomorphic soft terms in the framework of gauge mediated supersymmetry breaking

Chattopadhyay

Das

Mukherjee

2018

J. High Energ. Phys.

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It is known that in the absence of a gauge singlet field, a specific class of supersymmetry (SUSY) breaking non-holomorphic (NH) terms can be soft breaking in nature so that they may be considered along with the Minimal Supersymmetric Standard Model (MSSM) and beyond. There have been studies related to these terms in minimal supergravity based models. Consideration of an F-type SUSY breaking scenario in the hidden sector with two chiral superfields however showed Planck scale suppression of such terms. In an unbiased point of view for the sources of SUSY breaking, the NH terms in a phenomenological MSSM (pMSSM) type of analysis showed a possibility of a large SUSY contribution to muon g − 2, a reasonable amount of corrections to the Higgs boson mass and a drastic reduction of the electroweak fine-tuning for a higgsino dominated χ 0 1 in some regions of parameter space. We first investigate here the effects of the NH terms in a low scale SUSY breaking scenario. In our analysis with minimal gauge mediated supersymmetry breaking (mGMSB) we probe how far the results can be compared with the previous pMSSM plus NH terms based study. We particularly analyze the Higgs, stop and the electroweakino sectors focusing on a higgsino dominated χ 0 1 and χ ± 1 , a feature typically different from what appears in mGMSB. The effect of a limited degree of RG evolutions and vanishing of the trilinear coupling terms at the messenger scale can be overcome by choosing a non-minimal GMSB scenario, such as one with a matter-messenger interaction.

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“…It has been shown that in the absence of any gauge singlet it is possible to extend the SUSY breaking soft sector by including NH soft SUSY breaking terms, without aggravating any quadratic divergence [71,74,80]. Thus, the NH soft terms of the NHSSM in general that include trilinear coupling terms as well as a NH higgsino mass (µ ) term are given by [33,83] …”

Section: Ccb In Nhssmmentioning

confidence: 99%

Exploring charge and color breaking vacuum in non-holomorphic MSSM

Beuria

Dey

2017

J. High Energ. Phys.

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Non-Holomorphic MSSM (NHSSM) shows various promising features that are not easily obtained in MSSM. However, the additional Non-Holomorphic (NH) trilinear interactions that attribute to the interesting phenomenological features, also modify the effective scalar potential of the model significantly. We derive analytic constraints involving trilinear parameters A t and A b that exclude global charge and color breaking minima (CCB). Since the analytic constraints are obtained considering specific directions in the multi-dimensional field space, we further probe the applicability of these constraints by exhaustive scan over NH parameter space with two different regimes of tan β and delineate the nature of metastability by considering vacuum expectation values for third generation squarks. We adhere to a natural scenario by fixing Higgsino mass parameter (µ) to a low value and estimate the allowed ranges of NH trilinear parameters by considering vacuum stability and observed properties of Higgs as the determining criteria.

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Higgs boson masses in the MSSM with general soft breaking

Cited by 13 publications

References 22 publications

Probing non-holomorphic MSSM via precision constraints, dark matter and LHC data

Probing non-holomorphic MSSM via precision constraints, dark matter and LHC data

Exploring non-holomorphic soft terms in the framework of gauge mediated supersymmetry breaking

Exploring charge and color breaking vacuum in non-holomorphic MSSM

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