Observation and Polarization Measurements of B{sup {+-}}{yields}{phi}K{sub 1}{sup {+-}} and B{sup {+-}}{yields}{phi}K{sub 2}*{sup {+-}}

Journal Article · Fri Oct 17 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.161801· OSTI ID:21179809

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Garra Tico, J; 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]

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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)

With the full BABAR data sample of 465x10{sup 6} BB pairs, we observe the decays B{sup {+-}}{yields}{phi}K{sub 1}(1270){sup {+-}} and B{sup {+-}}{yields}{phi}K{sub 2}*(1430){sup {+-}}. We measure the branching fractions (6.1{+-}1.6{+-}1.1)x10{sup -6} and (8.4{+-}1.8{+-}1.0)x10{sup -6} and the fractions of longitudinal polarization 0.46{sub -0.13-0.07}{sup +0.12+0.06} and 0.80{sub -0.10}{sup +0.09}{+-}0.03, respectively. We also report on the B{sup {+-}}{yields}{phi}K{sub 0}*(1430){sup {+-}} decay branching fraction of (7.0{+-}1.3{+-}0.9)x10{sup -6} and several parameters sensitive to CP violation and interference in the above three decays. Upper limits are placed on the B{sup {+-}} decay rates to final states with {phi} and K{sub 1}(1400){sup {+-}}, K*(1410){sup {+-}}, K{sub 2}(1770){sup {+-}}, or K{sub 2}(1820){sup {+-}}. Understanding the observed polarization pattern requires amplitude contributions from an uncertain source.

• OSTI ID: 21179809
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
B PLUS MESONS
BRANCHING RATIO
CP INVARIANCE
INTERFERENCE
K1-1270 MESONS
K1-1400 MESONS
K2-1770 MESONS
K2-1820 MESONS
PAIR PRODUCTION
PARTICLE DECAY
PHI MESONS
POLARIZATION