Observation of the Ξb−→J/ψΛK− decay

The observation of the decay Ξb−→J/ψΛK− is reported, using a data sample corresponding to an integrated luminosity of 3fb−1, collected by the LHCb detector in pp collisions at centre-of-mass energies of 7 and 8TeV. The production rate of Ξb− baryons detected in the decay Ξb−→J/ψΛK− is measured relat...

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Veröffentlicht in:	Physics letters. B 2017-09, Vol.772 (C), p.265-273
Hauptverfasser:	An, L., Arnau Romeu, J., Artamonov, A., Baker, S., Barschel, C., Barter, W., Baszczyk, M., Bediaga, I., Bel, L.J., Belloli, N., Betti, F., Bettler, M.-O., Bitadze, A., Bizzeti, A., Bocci, V., Bonivento, W., Borsato, M., Britsch, M., Brodzicka, J., Calvo Gomez, M., Capriotti, L., Chefdeville, M., Coco, V., Cogoni, V., Cook, A., Craik, D.C., De Cian, M., Ely, S., Ferguson, D., Fiore, M., Fohl, K., Fontanelli, F., Forty, R., Franco Lima, V., Furfaro, E., Garra Tico, J., Garrido, L., Garsed, P.J., Gershon, T., Haefeli, G., Harnew, S.T., Hulsbergen, W., Jaeger, A., Johnson, D., Kudryavtsev, V., Lefèvre, R., Lemos Cid, E., Li, Y., Luo, H., Massafferri, A., Mathad, A., Morawski, P., Morello, M.J., Morgunova, O., Müller, J., Naik, P., Neri, N., Nguyen-Mau, C., Nieswand, S., Obraztsov, V., Owen, P., Palombo, F., Parker, W., Patel, G.D., Perret, P., Petrov, A., Picatoste Olloqui, E., Polci, F., Poluektov, A., Popovici, B., Price, E., Pugatch, V., Qian, W., Rachwal, B., Remon Alepuz, C., Ruf, T., Sanchez Mayordomo, C., Shears, T., Siddi, B.G., Simone, S., Snoek, H., Soares Lavra, L., Stahl, M., Stemmle, S., Stevens, H., Stone, S., Storaci, B., Sutcliffe, W., Tolk, S., Trabelsi, K., Uwer, U., Valenti, G., Vazquez Gomez, R., Watson, N.K., Wicht, J., Wishahi, J., Witek, M., Yin, H., Zavertyaev, M., Zheng, Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Beschreibung
Zusammenfassung:	The observation of the decay Ξb−→J/ψΛK− is reported, using a data sample corresponding to an integrated luminosity of 3fb−1, collected by the LHCb detector in pp collisions at centre-of-mass energies of 7 and 8TeV. The production rate of Ξb− baryons detected in the decay Ξb−→J/ψΛK− is measured relative to that of Λb0 baryons using the decay Λb0→J/ψΛ. Integrated over the b-baryon transverse momentum pT
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2017.06.045