Large enhancement of D±→e±ν and D±s→e±ν in R-parity violating SUSY models

Akeroyd, A. G.; Recksiegel, Stefan

doi:10.1016/s0370-2693(02)03293-8

Cited by 28 publications

(18 citation statements)

References 39 publications

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“…For the charged B meson decays, Erler et al, [122] infer the quadratic coupling constant bound, |λ [263,264] find that the tree level contributions from the RPV λ and λ ′ interactions can lead to large enhancements of the associated rates as predicted on the basis of the SM.…”

Section: Rare Leptonic Decays Of Hadronsmentioning

confidence: 99%

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Chemtob

2005

Progress in Particle and Nuclear Physics

157

113

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The R parity odd renormalizable Yukawa interactions of quarks and leptons with the scalar superpartners have the ability to violate the baryon and lepton numbers, change the hadron and lepton flavors and make the lightest supersymmetric particle unstable. The existence of an approximate R parity symmetry would thus affect in a deep way the conventional framework of the Minimal Supersymmetric Standard Model where an exact R parity symmetry is built-in by assumption. The purpose of the present review is to survey in a systematic way the direct experimental constraints set on the R parity violating couplings by the low and intermediate energy physics processes. We consider first the option of bilinear R parity violation and spontaneously broken R parity symmetry and proceed next to the trilinear R parity violating interactions. The discussion aims at surveying the indirect coupling constant bounds derived from fundamental tests of the Standard Model and the variety of scattering and rare decay processes. We also discuss the constraints imposed by the renormalization group scale evolution and the cosmological and astrophysical phenomenology. IntroductionThe multiplicative Z 2 symmetry, known as R parity, fulfills a central function in supersymmetry physics. Without R parity symmetry, the Minimal Supersymmetric Standard Model (MSSM) would include bilinear and trilinear renormalizable superpotential terms, coupling the quarks and leptons to their scalar superpartners, which have the ability to initiate fast nucleon decay, large neutrinos masses and the LSP (lightest supersymmetric particle) disintegration into ordinary particles. Thus apart from threatening the nucleon and neutrino stability and contributing to the hadron and lepton flavor changing processes and to neutrino masses and flavor mixing, the R parity odd Yukawa interactions would also disallow any of the supersymmetric cosmic relic particles to contribute to the Universe dark matter component. The R parity symmetry was first introduced in a 1978 work by Farrar and Fayet [1], as part of attempts towards building a realistic particle physics phenomenology of supersymmetry [2,3,4]. This step followed closely in time the major developments in years [1974][1975] which culminated in the construction of supersymmetric field theories [5,6,7], the implementation of spontaneous supersymmetry breaking schemes [8,9] and the discovery of R symmetries [10]. The collection of reprints by Ferrara [11] offers a valuable grasp on the progress of ideas from the early period until the middle 1980's. The subsequent developments are discussed in the review articles [12,13] and the collection of preprints by Salam and Sezgin [14]. As an historical aside on the origin of R symmetries, we note that Wess and Zumino [5] introduced an R quantum number as a weighting index labeling distinct representations of *

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Section: Rare Leptonic Decays Of Hadronsmentioning

confidence: 99%

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Chemtob

2005

Progress in Particle and Nuclear Physics

157

113

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“…There is an approximately 2 standard-deviation difference between the experimental average and the lattice QCD calculations. Several models of physics beyond the SM, such as the two-Higgs-doublet model [14] and the R-parityviolating model [15], may help to understand this difference. It is important to further investigate this difference both theoretically and experimentally.…”

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confidence: 99%

Measurement of theDs+→ℓ+νℓbranching fractions and the decay constantfD
Ablikim¹,
Ачасов²,
Ai³
et al. 2016
Phys. Rev. D
34
3
16
0
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“…R-Parity violating (RPV) interactions involve either lepton number violation or baryon number violation, but not both in order to preserve proton stability. These interactions lead to flavor violating interactions in the leptonic and hadronic sector, and read explicitly as, A vast majority of observables have been used to set the corresponding bounds to these effective couplings (for a complete review see [14] and references therein); in particular, for D meson decays [73][74][75][76][77][78][79][80][81][82]89]. We relate the corresponding Wilson coefficients constrained in the global analysis to the RPV couplings which constructively interfere with the Standard Model, i.e.…”

Section: Mssm-rmentioning

confidence: 99%

Constraining New Physics with D meson decays

et al. 2014

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Latest Lattice results on $D$ form factors evaluation from first principles show that the standard model (SM) branching ratios prediction for the leptonic $D_s \to \ell \nu_\ell$ decays and the semileptonic SM branching ratios of the $D^0$ and $D^+$ meson decays are in good agreement with the world average experimental measurements. It is possible to disprove New Physics hypothesis or find bounds over several models beyond the SM. Using the observed leptonic and semileptonic branching ratios for the D meson decays, we performed a combined analysis to constrain non standard interactions which mediate the $c\bar{s}\to l\bar{\nu}$ transition. This is done either by a model independent way through the corresponding Wilson coefficients or in a model dependent way by finding the respective bounds over the relevant parameters for some models beyond the standard model. In particular, we obtain bounds for the Two Higgs Doublet Model Type-II and Type III, the Left-Right model, the Minimal Supersymmetric Standard Model with explicit R-Parity violation and Leptoquarks. Finally, we estimate the transverse polarization of the lepton in the $D^0$ decay and we found it can be as high as $P_T=0.23$.Comment: 28 pages, 8 figures, 3 tables. Improved and extended analysis with updated form factors from Lattice QC

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Large enhancement of D±→e±ν and D±s→e±ν in R-parity violating SUSY models

Cited by 28 publications

References 39 publications

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Measurement of theDs+→ℓ+νℓbranching fractions and the decay constantfD
Ablikim¹,
Ачасов²,
Ai³
et al. 2016
Phys. Rev. D
34
3
16
0
View full text Add to dashboard Cite

Constraining New Physics with D meson decays

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Large enhancement of D±→e±ν and D±s→e±ν in R-parity violating SUSY models

Cited by 28 publications

References 39 publications

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Measurement of theDs+→ℓ+νℓbranching fractions and the decay constantfDAblikim1, Ачасов2, Ai3 et al. 2016Phys. Rev. D343160View full textAdd to dashboardCite

Constraining New Physics with D meson decays

Contact Info

Product

Resources

About

Measurement of theDs+→ℓ+νℓbranching fractions and the decay constantfD
Ablikim¹,
Ачасов²,
Ai³
et al. 2016
Phys. Rev. D
34
3
16
0
View full text Add to dashboard Cite