TY - JOUR

T1 - Search for the baryon and lepton number violating decay J / ψ → p e − + c . c .

AU - BESIII Collaboration

AU - Ачасов, Михаил Николаевич

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

PY - 2025/6/30

Y1 - 2025/6/30

N2 - Based on ( 2712.4 ± 14.3 ) × 10 6 ψ ( 3686 ) events collected by the BESIII detector operating at the BEPCII storage ring, we perform a search for the baryon- and lepton-number violating decay J / ψ → p e − + c . c . via ψ ( 3686 ) → π + π − J / ψ . No significant signal is found. An upper limit on the branching fraction of B ( J / ψ → p e − + c . c . ) is found to be 3.1 × 10 − 8 at 90% confidence level.

AB - Based on ( 2712.4 ± 14.3 ) × 10 6 ψ ( 3686 ) events collected by the BESIII detector operating at the BEPCII storage ring, we perform a search for the baryon- and lepton-number violating decay J / ψ → p e − + c . c . via ψ ( 3686 ) → π + π − J / ψ . No significant signal is found. An upper limit on the branching fraction of B ( J / ψ → p e − + c . c . ) is found to be 3.1 × 10 − 8 at 90% confidence level.

UR - https://www.mendeley.com/catalogue/36aae47e-89f3-3b58-b039-198234986ac9/

U2 - 10.1103/9plz-99rg

DO - 10.1103/9plz-99rg

M3 - Article

VL - 111

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

ER -