We study the two-body decays of B± mesons to K± and a charmonium state Xcc̄ in a sample of 210.5fb-1 of data from the BABAR experiment. We perform measurements of absolute branching fractions B(B±→K±Xcc̄) using a missing mass technique, and report several new or improved results. In particular, the upper limit B(B±→K±X(3872))<3.2×10-4 at 90% C.L. and the inferred lower limit B(X(3872)→J/ψπ+π-)>4.2% will help in understanding the nature of the recently discovered X(3872). © 2006 The American Physical Society.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2006). Measurements of the absolute branching fractions of B±→ K±Xcc̄. PHYSICAL REVIEW LETTERS, 96(5), 1-7 [10.1103/PhysRevLett.96.052002].

Measurements of the absolute branching fractions of B±→ K±Xcc̄

PATRIGNANI, CLAUDIA;
2006

Abstract

We study the two-body decays of B± mesons to K± and a charmonium state Xcc̄ in a sample of 210.5fb-1 of data from the BABAR experiment. We perform measurements of absolute branching fractions B(B±→K±Xcc̄) using a missing mass technique, and report several new or improved results. In particular, the upper limit B(B±→K±X(3872))<3.2×10-4 at 90% C.L. and the inferred lower limit B(X(3872)→J/ψπ+π-)>4.2% will help in understanding the nature of the recently discovered X(3872). © 2006 The American Physical Society.
2006
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2006). Measurements of the absolute branching fractions of B±→ K±Xcc̄. PHYSICAL REVIEW LETTERS, 96(5), 1-7 [10.1103/PhysRevLett.96.052002].
Aubert, B; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappag...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/550765
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