# New LEP constraints on some supersymmetric Yukawa interactions that violate R-parity

@article{Bhattacharyya1995NewLC, title={New LEP constraints on some supersymmetric Yukawa interactions that violate R-parity}, author={Gautam Bhattacharyya and John Ellis and K. Sridhar}, journal={arXiv: High Energy Physics - Phenomenology}, year={1995} }

We consider one-loop corrections to partial widths of the $Z$ induced by supersymmetric Yukawa interactions that violate $R$-parity. The precise experimental values of the leptonic $Z$ partial widths bound these Yukawa couplings, with the most interesting constraints being those on couplings involving the $\tau$, since previous constraints on them were very mild.

#### 41 Citations

Constraints on R-parity violating interactions from mu ---> e gamma

- Physics
- 1996

The lepton number violating process $\mu\rightarrow e\gamma$ is used to study the lepton number violating couplings in MSSM extended by terms violating $R$-parity explicitly. Bounds are obtained for… Expand

New constraints on lepton nonconserving R-parity violating couplings

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- 1996

Strong upper bounds are derived on certain product combinations of lepton nonconserving couplings in the minimal sypersymmetric standard model with explicit R-parity violation. The input is… Expand

Bounds on R-Parity Violating Parameters from Fermion EDM's

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- 1997

We study one-loop contributions to the fermion electric dipole moments in the Minimal Supersymmetric Standard Model with explicit R-parity violating interactions. We obtain new individual bounds on… Expand

R-parity violation at LEP2: virtual effects

- Physics
- 1995

Abstract We investigate the ability of LEP2 to detect possible R-parity violation, especially for the case where direct production cross-sections are too small for all superparticles. We demonstrate… Expand

R-parity-violating Yukawa couplings

- Physics
- 1996

We discuss the evolution of R-parity-violating (RPV) couplings in the minimum supersymmetric standard model, assuming a hierarchy for coupling strengths and emphasising solutions where R-conserving… Expand

R-parity violation at HERA?

- Physics
- 1997

Abstract We examine the possibility that the high- Q 2 events seen at HERA are due to the production and decay of squarks of R -parity-violating supersymmetry. The relevant R -parity-violating… Expand

R-Parity-violating supersymmetry

- Physics
- 2005

Theoretical and phenomenological implications of R-parity violation in supersymmetric theories are discussed in the context of particle physics and cosmology. Fundamental aspects include the relation… Expand

Radiative neutrino decay and CP-violation in R-parity violating supersymmetry

- Physics
- 2006

We calculate the radiative decay amplitude for Majorana neutrinos in trilinear R-parity violating supersymmetric framework. Our results make no assumption regarding the masses and mixings of fermions… Expand

Limits on
R
-parity-violating couplings from Drell-Yan processes at the LHC

- Physics
- Physical Review D
- 2019

We find constraints on R-Parity Violating (RPV) couplings of the minimal supersymmetric standard model, using Drell-Yan differential cross sections at the LHC. Specifically, we look at the… Expand

Lifetime difference in D0 - anti-D0 mixing within R-parity-violating SUSY

- Physics
- 2007

We re-examine constraints from the evidence for observation of the lifetime difference in $D^0$-${\bar D}^0$ mixing on the parameters of supersymmetric models with R-parity violation (RPV). We find… Expand