Evidence for X(3872) --> Psi(2S) gamma in B+/- --> X(3872) K+/- Decays, and a Study of B --> ccbar gamma K

Journal Article · Tue Sep 09 00:00:00 EDT 2008 · Physical Review Letters

OSTI ID:937177

Fulsom, B

In a search for B {yields} c{bar c}{gamma} K decays with the BABAR detector, where c{bar c} includes J/{psi} and {psi}(2S), and K includes K{sup {+-}}, K{sub S}{sup 0} and K*(892), they 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. They measure the product of branching fractions {Beta}(B{sup {+-}} {yields} X (3872)K{sup {+-}}) {center_dot} {Beta}(X(3872) {yields} J/{psi}{gamma}) = (2.8 {+-} 0.8(stat.) {+-} 0.2(syst.)) x 10{sup -6} and {Beta}(B{sup {+-}} {yields} X(3872)K{sup {+-}}) {center_dot} {Beta}(X(3872) {yields} {psi}(2S){gamma}) = (9.9 {+-} 2.9(stat.) {+-} 0.6(syst.)) x 10{sup -6}.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 937177
• Report Number(s): SLAC-PUB-13375; PRLTAO; arXiv:0809.0042; TRN: US0805992
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B PLUS MESONS
B MINUS MESONS
PARTICLE DECAY
KAONS PLUS
KAONS MINUS
VECTOR MESONS
K*-892 MESONS
BRANCHING RATIO
Experiment-HEP
HEPEX