Evidence for X(3872){yields}{psi}(2S){gamma} in B{sup {+-}}{yields}X(3872)K{sup {+-}} Decays and a Study of B{yields}cc{gamma}K

Journal Article · Fri Apr 03 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.132001· OSTI ID:21180329

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Cahn, R N ^[5]

---

1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. INFN Sezione di Bari, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

In a search for B{yields}cc{gamma}K decays with the BABAR detector, where cc includes J/{psi} and {psi}(2S), and K includes K{sup {+-}}, K{sub S}{sup 0}, and K*(892), we find evidence for X(3872){yields}J/{psi}{gamma} and X(3872){yields}{psi}(2S){gamma} with 3.6{sigma} and 3.5{sigma} significance, respectively. We measure the product of branching fractions B(B{sup {+-}}{yields}X(3872)K{sup {+-}})xB(X(3872){yields}J/{psi}{gamma})=[2.8{+-}0.8(stat){+-}0.1(syst)]x10{sup -6} and B(B{sup {+-}}{yields}X(3872)K{sup {+-}})xB(X(3872){yields}{psi}(2S){gamma})=[9.5{+-}2.7(stat){+-}0.6(syst)]x10{sup -6}.

• OSTI ID: 21180329
• Journal Information: Physical Review Letters, Vol. 102, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.102.132001; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
B PLUS MESONS
BRANCHING RATIO
J PSI-3097 MESONS
K*-892 MESONS
KAONS MINUS
KAONS NEUTRAL SHORT-LIVED
KAONS PLUS
PARTICLE DECAY
PARTICLE PRODUCTION