Search for baryon and lepton number violating decay D± →n (n ¯)e±
Journal
Physical Review D
Journal Volume
106
Journal Issue
11
Start Page
112009
ISSN
2470-0010
2470-0029
Date Issued
2022-12-26
Author(s)
Abstract
Using a data set of electron-positron collisions corresponding to an integrated luminosity of 293 fb-1 taken with the BESIII detector at a center-of-mass energy of 3.773 GeV, a search for the baryon (B) and lepton (L) number violating decays D±→n(n¯)e± is performed. No signal is observed and the upper limits on the branching fractions at the 90% confidence level are set to be 1.43×10-5 for the decays D+(-)→n¯(n)e+(-) with Δ|B-L|=0, and 2.91×10-5 for the decays D+(-)→n(n¯)e+(-) with Δ|B-L|=2, where Δ|B-L| denotes the change in the difference between baryon and lepton numbers.
Publisher
American Physical Society (APS)
Type
journal article