Muon (g − 2) in the B-LSSM

Yang, Jin-Lei; Zhang, Haibin; Liu, Changxin; Dong, Xing-Xing; Feng, Tao

doi:10.1007/jhep08(2021)086

Cited by 21 publications

(3 citation statements)

References 102 publications

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“…There have been an appreciable number of SUSY-based analyses on (g − 2) µ after the announcement of Fermilab result [35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][54][55][56][57]. Some of the above works also involve dark matter constraints.…”

Section: Yukawa Threshold Correctionsmentioning

confidence: 99%

Muon and Electron $(g-2)$ Anomalies with Non-Holomorphic Interactions in MSSM

Chakraborti¹,

Chattopadhyay²,

Mukherjee³

2021

Preprint

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The recent Fermilab muon g − 2 result and the same for electron due to fine-structure constant measurement through 133 Cs matter-wave interferometry are probed in relation to MSSM with non-holomorphic (NH) trilinear soft SUSY breaking terms, referred as NHSSM. Supersymmetric contributions to charged lepton (g − 2) l can be enhanced via the new trilinear terms involving a wrong Higgs coupling with left and right-handed scalars. Bino-slepton loop is used to enhance the SUSY contribution to g − 2 where wino mass stays at 1.5 TeV and the left and right slepton mass parameters for the first two generations are considered to be the same. Unlike many MSSM based analyses, the model does not require a light electroweakino, or light sleptons, or unequal left and right slepton masses, or a very large higgsino mass parameter. First part of the analysis involves (g − 2) µ constraint along with limits from Higgs mass, B-physics, collider data, direct detection of dark matter (DM) while focusing on a higgsino DM which is underabundant in nature. We then impose the constraint from electron g − 2 where a large Yukawa threshold corrections (an outcome of NHSSM) and opposite signs of trilinear NH coefficients associated with µ and e fields are used to satisfy the dual limits of ∆a µ and ∆a e (where the latter comes with negative sign).Varying Yukawa threshold corrections further provide the necessary flavor-dependent enhancement of ∆a e /m 2 e compared to that of ∆a µ /m 2 µ . A larger Yukawa threshold correction through A e for y e also takes away the direct proportionality of a e with respect to tan β. With a finite intercept, a e becomes only an increasing function of tan β. We identified the available parameter space in the two cases while also applying the ATLAS data on slepton pair production in the plane of slepton mass parameter and the mass of the lightest neutralino.

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Section: Yukawa Threshold Correctionsmentioning

confidence: 99%

Muon and Electron $(g-2)$ Anomalies with Non-Holomorphic Interactions in MSSM

Chakraborti¹,

Chattopadhyay²,

Mukherjee³

2021

Preprint

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“…Next, let's briefly review our previous work on muon MDM. We study the corrections from loop diagrams to muon MDM with the mass eigenstate in the BLMSSM and B-LMSSM [36][37][38]. With the effective Lagrangian method [39][40][41], we also research the contributions to muon MDM from loop diagrams under the ( ) U 1 X SSM and μν SSM.…”

Section: Introductionmentioning

confidence: 99%

Study on muon MDM and lepton EDM in BLMSSM via the mass insertion approximation

Wang,

Long,

Wang

et al. 2023

J. Phys. G: Nucl. Part. Phys.

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In the framework of the MSSM extension with local gauged baryon and lepton numbers (BLMSSM), we calculate the muon anomalous magnetic dipole moment (MDM) and lepton $(e, \mu, \tau)$ electric dipole moment (EDM), and discuss how the muon MDM and lepton EDM depend on the parameters within the mass insertion approximation. Among many parameters, $\tan{\beta}$,~$g_L$,~$m_L$ and $\mu_H$ are more sensitive parameters for $a^{BL}_{\mu}$. Considering the experimental limitations, our best numerical result of $a^{BL}_{\mu}$ is around $2.5 \times 10^{-9}$, which can well compensate the departure between the experiment data and standard model (SM) prediction. The CP violating phases in BLMSSM are more than those in the MSSM, including new parameters $\theta_{\mu_L}$ and $\theta_{L}$. They can give large contributions, which play an important role in exploring the source of CP violation and probing new physics beyond SM.

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“…Accurate and reliable cross sections of nuclear reactions around the neutron energy of 14 MeV on rhenium isotopes are crucial for the design of fusion reactors because rhenium is a critical potential structural component of such a type of reactor [1,2]. To date, few laboratories (from two to nine) have reported experimental cross-section data of (n,2n), (n,α), and (n,p) reactions on rhenium isotopes around the neutron energy of 14 MeV.…”

Section: Introductionmentioning

confidence: 99%

Cross section measurements for (n,2n), (n,α), and (n,p) reactions on rhenium isotopes around 14 MeV neutrons and their theoretical calculations of excitation functions*

et al. 2021

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Cross-section data of the 185Re(n,2n)184mRe, 185Re(n,2n)184gRe, 185Re(n,α)182m1+m2+gTa, 187Re(n, 2n)186g,(m)Re, 187Re(n,α)184Ta, and 187Re(n,p)187W reactions were measured at four neutron energies, namely 13.5, 14.1, 14.4, and 14.8 MeV, by means of the activation technique, relative to the reference cross-section values of the 93Nb(n,2n)92mNb reaction. The neutrons were generated from the T(d,n)4He reaction at the K-400 Neutron Generator at China Academy of Engineering Physics. The induced γ activities were measured using a high-resolution γ-ray spectrometer equipped with a coaxial high-purity germanium detector. The excitation functions of the six above-mentioned nuclear reactions at neutron energies from the threshold to 20 MeV were calculated by adopting the nuclear theoretical model program system Talys-1.9 with the relevant parameters properly adjusted. The measured cross sections were analyzed and compared with previous experiments conducted by other researchers, and with the evaluated data of BROND-3.1, ENDF/B-VIII.0, JEFF-3.3, and the theoretical values based on Talys-1.9. The new measured results agree with those of previous experiments and the theoretical excitation curve at the corresponding energies. The theoretical excitation curves based on Talys-1.9 generally match most of experimental data well.

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Muon (g − 2) in the B-LSSM

Cited by 21 publications

References 102 publications

Muon and Electron $(g-2)$ Anomalies with Non-Holomorphic Interactions in MSSM

Muon and Electron $(g-2)$ Anomalies with Non-Holomorphic Interactions in MSSM

Study on muon MDM and lepton EDM in BLMSSM via the mass insertion approximation

Cross section measurements for (n,2n), (n,α), and (n,p) reactions on rhenium isotopes around 14 MeV neutrons and their theoretical calculations of excitation functions*

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