2021/05/31 by R. Aaij, C. Abellán Beteta, T. Ackernley +955 · 1 citation
Physics and Astronomy · #hep-ex
paper · pdf · doi:10.1007/s11433-021-1742-7
published as Sci. China-Phys. Mech. Astron. 64, 101062 (2021) · All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-011.html (LHCb public pages)
arxiv created 2021/10/21 · arxiv updated 2021/10/22
A search for the doubly charmed baryon \itΩcc+ with the decay mode \itΩcc+→\itΞc+K-π+ is performed using proton-proton collision data at a centre-of-mass energy of 13 Te\kern -0.1em V collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb-1. No significant signal is observed within the invariant mass range of 3.6 to 4.0 Ge\kern -0.1em V/c2. Upper limits are set on the ratio R of the production cross-section times the total branching fraction of the \itΩcc+→\itΞc+K-π+ decay with respect to the \itΞcc++→\itΛc+K-π+π+ decay. Upper limits at 95% credibility level for R in the range 0.005 to 0.11 are obtained for different hypotheses on the \itΩcc+ mass and lifetime in the rapidity range from 2.0 to 4.5 and transverse momentum range from 4 to 15 Ge\kern -0.1em V/c.