Constraints on the CP-Violating MSSM

Arbey, Alexandre; Ellis, J.; Godbole, R. M.; Mahmoudi, F.

doi:10.1016/j.nuclphysbps.2017.03.029

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…The Indian effort has not failed to touch two alternative viewpoints of supersymmetry, viz. the GMSB model [357,[406][407][408][409][410][411][412][413][414][415] and the CP -violating version of SUSY [308,[416][417][418][419][420][421][422][423][424][425][426][427][428][429], though it must be said that no studies have been undertaken in a coordinated or systematic fashion. On the other hand, the offmainstream version of SUSY which seems to have had particular fascination for the Indian community is the version where R-parity is violated, i.e.…”

Section: Seeking Supersymmetrymentioning

confidence: 99%

Indian contributions to LHC theory

Raychaudhuri

2023

Eur. Phys. J. Spec. Top.

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Indian scientists began to work on the theoretical aspects of LHC physics from the early 1980s, at the same time when the rest of the world started taking interest in this then-futuristic topic. From this point grew a whole school of collider phenomenologists, who now form a significant fraction of the Indian high-energy physics community. This article briefly reviews the growth and contributions of the Indian school, on the way describing some of the physics ideas while placing the work in the international context, and proceeding thus, brings the story up to date in mid-2022.Dedicated to the memory of the late D.P. Roy (1941Roy ( -2017, the father of Indian collider theory. The expectant 80sThe LHC owes its origin [1] to CERN's far-sighted leaders, Léon van Hove, who served from 1976-1980 as the Scientific Director-General, and Technical Director-General Sir John Adams (1976)(1977)(1978)(1979)(1980)(1981), who resolved that it would be feasible and scientifically rewarding to build the next-generation storage ring at CERN. Thus, in 1977, Adams wrote the crucial concept note that the LEP collider 1 tunnel, which would be excavated in the 1980s, should be made large enough to accommodate the superconducting magnets required for a future phase of proton acceleration at higher energies. This 1977 note may be thought of as the genesis of the LHC. By 1978, it was already well known in the community, even though the formal approval for the LEP came only in 1981, and the machine itself started running in 1989 [2]. However, the fact that the 20 TeV LHC would eventually come and that the physics at such a machine should be studied, was in the air right from the early 1980s onward. Moreover, the USA was supposed to build a 40 TeV Superconducting Super Collider (SSC) which, sadly, never materialised 2 . The 1980s were, in fact, a period of great optimism for high-energy physics -or, as it was then more commonly known, elementary particle physics. One trigger for this may have lain in the decision of the Nobel Prize committee, in 1979, to recognise the work of Glashow (1961) [3], of Salam (1966-1968 1 The Large Electron-Positron collider.2 It was sanctioned in 1989, and eventually cancelled in 1993.

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Section: Seeking Supersymmetrymentioning

confidence: 99%

Indian contributions to LHC theory

Raychaudhuri

2023

Eur. Phys. J. Spec. Top.

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Supersymmetry, direct and indirect constraints

Mahmoudi

2018

Nuclear and Particle Physics Proceedings

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Electric dipole moments and dark matter in a CP violating MSSM

et al. 2018

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We investigate electric dipole moments (EDMs) in a CP-violating minimal supersymmetric standard model with the Bino-like neutralino dark matter (DM) annihilating through the heavy Higgs funnel. Motivated by the current experimental results, in particular, the measured mass of the standard model-like Higgs boson, we consider a mass spectrum with stop masses of about 10 TeV. For the other sfermions, we consider masses of about 100 TeV. We show that CP-violating phases of the order of ten degrees in gaugino and Higgsino mass parameters are consistent with the current bound by EDMs of the electron, the neutron, and the mercury. They are within the reach of future experiments. We also show that effects of CP-violating phases induce a difference in DM-nucleon scattering cross section by a factor.

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Constraints on the CP-Violating MSSM

Cited by 3 publications

References 27 publications

Indian contributions to LHC theory

Indian contributions to LHC theory

Supersymmetry, direct and indirect constraints

Electric dipole moments and dark matter in a CP violating MSSM

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