A search for the doubly charmed baryon Ω +cc with the decay mode Ω +cc → Ξ +cK−π+ is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV 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 4.0GeV/c2. Upper limits are set on the ratio R of the production cross-section times the total branching fraction of the Ω +cc → Ξ +cK−π+ decay with respect to the Ξ++→Λ+−++ decay. Upper limits at 95% credibility level for R in the range 0.005 to 0.11 are obtained for different hypotheses on the Ω +cc mass and lifetime in the rapidity range from 2.0 to 4.5 and transverse momentum range from 4 to 15 GeV/c.

Search for the doubly charmed baryon Ωcc+ / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Amato, S., Amhis, Y., An, L., et al.. - In: SCIENCE CHINA. PHYSICS, MECHANICS & ASTRONOMY. - ISSN 1674-7348. - 64:10(2021). [10.1007/s11433-021-1742-7]

Search for the doubly charmed baryon Ωcc+

Capriotti, L.;Casse, G.;Sarti, A.;
2021

Abstract

A search for the doubly charmed baryon Ω +cc with the decay mode Ω +cc → Ξ +cK−π+ is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV 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 4.0GeV/c2. Upper limits are set on the ratio R of the production cross-section times the total branching fraction of the Ω +cc → Ξ +cK−π+ decay with respect to the Ξ++→Λ+−++ decay. Upper limits at 95% credibility level for R in the range 0.005 to 0.11 are obtained for different hypotheses on the Ω +cc mass and lifetime in the rapidity range from 2.0 to 4.5 and transverse momentum range from 4 to 15 GeV/c.
2021
charmed baryons, limits on production of particles, charmed quarks, experimental tests
01 Pubblicazione su rivista::01a Articolo in rivista
Search for the doubly charmed baryon Ωcc+ / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Amato, S., Amhis, Y., An, L., et al.. - In: SCIENCE CHINA. PHYSICS, MECHANICS & ASTRONOMY. - ISSN 1674-7348. - 64:10(2021). [10.1007/s11433-021-1742-7]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1580270
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