Search for baryon and lepton number violating decays $D^{+}\to \bar{\Lambda }({\bar{\Sigma }}^0)e^{+}$ and $D^{+}\to \Lambda ({\Sigma }^0)e^{+}$

Abstract

Using a 2.93 fb${}^{-1}$ data sample of electron-positron collisions taken with the BESIII detector at a center-of-mass energy of 3.773 GeV, which corresponds to $(8296\pm 31\pm 64)\times 10^3{D}^{+}{D}^{-}$ pairs, we search for the baryon and lepton number violating decays $D^{+}\to \bar{\Lambda }({\bar{\Sigma }}^0)e^{+}$ and $D^{+}\to \Lambda ({\Sigma }^0)e^{+}$. No obvious signals are found with the current statistics and upper limits on the branching fractions of these four decays are set at the level of $10^{-6}$ at 90% confidence level.

References in corpus (9)

• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Study of ${\chi }_{cJ}$ radiative decays into a vector meson
• Baryon Number Violation Involving Higher Generations
• Measurement of e+e- --> D Dbar Cross Sections at the psi(3770) Resonance
• Searches for the baryon- and lepton-number violating decays $B^0\to {\Lambda }_c^{+}{\ell }^{-}$, $B^{-}\to \Lambda {\ell }^{-}$, and $B^{-}\to \bar{\Lambda }{\ell }^{-}$
• A search for baryon- and lepton-number violating decays of $\Lambda$ hyperons using the CLAS detector at Jefferson Laboratory
• Search for D0 to p e- and D0 to pbar e+

Cited by in corpus (7)

• Theoretical and experimental status of rare charm decays
• Coloured Scalar Mediated Nucleon Decays to Invisible Fermion
• Search for baryon and lepton number violating decays $D^0\to \bar{p}{e}^{+}$ and $D^0\to p{e}^{-}$
• Search for baryon and lepton number violation decay $D^{\pm }\to n(\bar{n})e^{\pm }$
• Search for the baryon- and lepton-number violating decays $B^0\to p{\mu }^{-}$ and $B_s^0\to p{\mu }^{-}$
• Search for baryon and lepton number violating decays of ${\Xi }^0$ hyperons
• Search for the baryon and lepton number violating decay $J/\psi \to p{e}^{-}$ + c.c