Non-minimal flavour violation, light pseudoscalar Higgs and evidence for SUSY in decays

Blažek, T.; Matak, P.

doi:10.1016/j.nuclphysbps.2009.12.043

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…þ À and thereby consider the light Higgs pole annihilation region to be an open region for study. References [43][44][45] may be seen for analyses with non-MFV scenarios for Brðb ! sÞ and B s !…”

Section: Wmap Data and Low Energy Constraintsmentioning

confidence: 99%

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Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations

Chattopadhyay¹,

Das²,

Ghosh³

et al. 2010

Phys. Rev. D

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We consider the prospect of lightest neutralino ( 0 1 ) as a dark matter candidate in light of recent interesting observations from the XENON100 and CDMS-II experiments in minimal supergravity framework with large tan and nonvanishing A 0 . Within the WMAP satisfied zone, there is a large direct detection reach of lighter 0 1 in the lighter Higgs boson mediated resonance annihilation domain of the above scenario. It is seen that the heavier Higgs boson plays a dominating role in the 0 1 À p cross section in the associated zone of parameter space in spite of having a larger mass. Possible LHC signatures are discussed.

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Section: Wmap Data and Low Energy Constraintsmentioning

confidence: 99%

“…Following the arguments and analyses of Refs. [41,[43][44][45], we therefore prefer not to exclude any region allowed by the WMAP data on the basis of the above constraints from flavor physics. The discarded regions are shown in gray.…”

Section: Wmap Data and Low Energy Constraintsmentioning

confidence: 99%

Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations

Chattopadhyay¹,

Das²,

Ghosh³

et al. 2010

Phys. Rev. D

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“…Depending on new physics models, correlation patterns between possible deviations from the SM prediction of K + → π + ν ν and K L → π 0 ν ν decay modes can be expected [5]. Present experimental constraints limit the range of variation within supersymmetric models [6,7,8]. The K + → π + ν ν decay can also be sensitive to effects of lepton flavour non-universality [9] and can constrain leptoquark models [10].…”

Section: Introductionmentioning

confidence: 99%

Measurement of the very rare K+→π+νν¯ decay at the NA62 experiment

Brizioli

2023

J. Phys.: Conf. Ser.

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The K + → π + ν ν ¯ decay, with a very precisely predicted branching ratio of less than 10−10, is among the best processes to reveal indirect effects of new physics. The NA62 experiment reports the branching ratio measurement BR( K + → π + ν ν ¯ ) = 1.06 − 0.34 + 0.40 | s t a t ± 0.009| syst ) · 10−10 at 68% CL, based on the observation of 20 signal candidates with an expected background of 7.0 events from the total data sample collected at the CERN SPS during 2016-2018. This provides evidence for the very rare K + → π + ν ν ¯ decay, observed with a significance of 3.4σ. This measurement is also used to set limits on BR(K + → π +X), where X is a new feebly interacting scalar or pseudo-scalar particle, foreseen in several new physics scenarios.

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“…Depending on new physics models, correlation patterns between possible deviations from the SM prediction of K + → π + νν and K L → π 0 νν decay modes are expected [5]. The K + → π + νν decay can also be sensitive to effects of lepton flavour non-universality [6] and can constrain leptoquark models [7]. Present experimental constraints limit the range of variation within supersymmetric models [8][9][10].…”

mentioning

confidence: 99%

Status of the NA62 Experiment

Piccini

2020

EPJ Web Conf.

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The decay $ {K^ + } \to {\pi ^ + }v\bar v $, with a very precisely predicted branching ratio of less than 10−10 in the Standard Model framework, is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at CERN SPS is designed to measure the branching ratio of such decay with a decay-in-flight technique, novel for this channel. The main goal of NA62 is to measure such Branching Ratio of $ {K^ + } \to {\pi ^ + }v\bar v $ with an accuracy better than 20%. This will be achieved by collecting up to 100 $ {K^ + } \to {\pi ^ + }v\bar v $ events with a background contamination at the level of 10%. The NA62 detector was commissioned in 2014 and 2015 and the experiment took physics data from 2015 to 2018. NA62 has already published the result of the 2016 data analysis. The 2017 data analysis is in progress, the single event sensitivity reached and the evaluation of the main backgrounds will be shown in this contribution.

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Non-minimal flavour violation, light pseudoscalar Higgs and evidence for SUSY in decays

Cited by 6 publications

References 4 publications

Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations

Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations

Measurement of the very rare K+→π+νν¯ decay at the NA62 experiment

Status of the NA62 Experiment

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