Sgoldstino physics and flavor-violating Higgs boson decays

Demidov, Sergei; Sobolev, Ivan

doi:10.1051/epjconf/201612502017

Cited by 2 publications

(2 citation statements)

References 48 publications

(31 reference statements)

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“…In particular, in the low energy supersymmetry breaking, i.e. N = 1 supersymmetry is broken at low energy around TeV scale [3][4][5][6][7][8][9][10], sgoldstino is light so that it can be probed in low energy experiments. Therefore, we would like to explore the sgoldstino phenomenology.…”

Section: Introductionmentioning

confidence: 99%

The Light Sgoldstino Phenomenology: Explanations for the Muon $(g-2)$ Deviation and KOTO Anomaly

Liu,

Li,

et al. 2020

Preprint

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In this work, we study the long-standing experimental anomaly in muon (g − 2) and also recent anomalous excess in K L → π 0 + ν ν at the J-PARC KOTO experiment with sgoldstino. After supersymmetry breaking, the interactions between quarks and sgoldstino (s) make the decays K → π + s sizable through loop diagrams, which affects the measurements of decays K → π + invisible. Furthermore, the couplings between photons and sgoldstino contribute to ∆a µ as well as bino-slepton contribution. With satisfying all known experimental constraints such as from NA62, E949, Orsay, KTEV and CHARM experiments, these two anomalies can be explained simultaneously. The mass of CP-even sgoldstino is close to the neutral pion mass which does not violate the Grossman-Nir bound. The parameter space can be further tested in future NA62, DUNE experiments, as well as experiments in the LHC.

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Section: Introductionmentioning

confidence: 99%

The Light Sgoldstino Phenomenology: Explanations for the Muon $(g-2)$ Deviation and KOTO Anomaly

Liu,

Li,

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…In particular, in the low energy supersymmetry breaking, i.e. N = 1 supersymmetry is broken at low energy around TeV scale [3][4][5][6][7][8][9][10], sgoldstino is so light that it can be probed in low energy experiments. Therefore, we would like to explore the sgoldstino phenomenology.…”

Section: Introductionmentioning

confidence: 99%

The light sgoldstino phenomenology: explanations for the muon (g − 2) deviation and KOTO anomaly

Liu

et al. 2020

J. High Energ. Phys.

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In this work, we study the long-standing experimental anomaly in muon (g −2) and also recent anomalous excess in $$ {K}_L\to {\pi}^0+v\overline{v} $$ K L → π 0 + v v ¯ at the J-PARC KOTO experiment with sgoldstino. After supersymmetry breaking, the interactions between quarks and sgoldstino (s) make the decays K → π + s sizable through loop diagrams, which affects the measurements of decays K → π + invisible. Furthermore, the couplings between photons and sgoldstino contribute to ∆aμ as well as the bino-slepton contribution. With satisfying all known experimental constraints such as from NA62, E949, E137, Orsay, KTEV and CHARM experiments, these two anomalies can be explained simultaneously. The mass of CP-even sgoldstino is close to the neutral pion mass which does not violate the Grossman-Nir bound. The parameter space can be further tested in future NA62, DUNE experiments, as well as experiments in the LHC.

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Sgoldstino physics and flavor-violating Higgs boson decays

Abstract: Abstract. In this talk we study effects of Higgs-sgoldstino mixing on flavour-violation in Higgs sector and in particular on h → μτ decay.

Cited by 2 publications

References 48 publications

The Light Sgoldstino Phenomenology: Explanations for the Muon $(g-2)$ Deviation and KOTO Anomaly

The Light Sgoldstino Phenomenology: Explanations for the Muon $(g-2)$ Deviation and KOTO Anomaly

The light sgoldstino phenomenology: explanations for the muon (g − 2) deviation and KOTO anomaly

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