Journal
| Title | Search for doubly charmed baryon Î_cc^(++) Posted by Jan Mickelle Maratas |
| Authors | LHCb collaboration (R. Aaij, et al.) |
| Publication date | 2019/11/19 |
| Journal | Science China - Physics, Mechanics & Astronomy |
| Volume | 63 |
| Issue | 2 |
| Pages | 221062 |
| Publisher | Science China Press |
| Abstract | A search for the doubly charmed baryon ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ+cc is performed through its decay to the ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ+cKÃÂÃÂÃÂâÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ+ final state, using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV. The data correspond to a total integrated luminosity of 9 fbÃÂÃÂÃÂâÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ1. No significant signal is observed in the mass range from 3.4 to 3.8 GeV/c2. Upper limits are set at 95% credibility level on the ratio of the ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ+cc production cross-section times the branching fraction to that of ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ+c and ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ++cc baryons. The limits are determined as functions of the ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ+cc mass for different lifetime hypotheses, in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 4 to 15 GeV/c. |
| Index terms / Keywords | charmed baryons, limits on production of particles, charmed quarks, experimental tests |
| DOI | https://doi.org/10.1007/s11433-019-1471-8 |
| URL | https://link.springer.com/article/10.1007%2Fs11433-019-1471-8 |