Search for the doubly charmed baryon Ξ+cc
| Parent link: | Science China: Physics, Mechanics and Astronomy Vol. 63, iss. 2.— 2020.— [221062, 15 p.] |
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| Yhteisötekijät: | , |
| Muut tekijät: | , , , , , , |
| Yhteenveto: | Title screen A search for the doubly charmed baryon Ξ+ccΞcc+ is performed through its decay to the Λ+cK−π+Λc+K−π+ 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 fb−1. 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 Ξ+ccΞcc+ production cross-section times the branching fraction to that of Λ+cΛc+ and Ξ++ccΞcc++ baryons. The limits are determined as functions of the Ξ+ccΞcc+ 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. |
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2020
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| Linkit: | https://doi.org/10.1007/s11433-019-1471-8 |
| Aineistotyyppi: | Elektroninen Kirjan osa |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664762 |
| Yhteenveto: | Title screen A search for the doubly charmed baryon Ξ+ccΞcc+ is performed through its decay to the Λ+cK−π+Λc+K−π+ 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 fb−1. 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 Ξ+ccΞcc+ production cross-section times the branching fraction to that of Λ+cΛc+ and Ξ++ccΞcc++ baryons. The limits are determined as functions of the Ξ+ccΞcc+ 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. |
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| DOI: | 10.1007/s11433-019-1471-8 |