Chen, KF;
Bozek, A;
Abe, K;
Abe, K;
Abe, T;
Adachi, I;
Aihara, H;
... Belle Collaboration; + view all
(2003)
Measurement of branching fractions and polarization in B ->phi K-(*) decays.
PHYS REV LETT
, 91
(20)
, Article 201801. 10.1103/PhysRevLett.91.201801.
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Abstract
We present the first measurement of decay amplitudes in B-->phiK(*) and measurements of branching fractions in B-->phiK((*)) decays based on 78.1 fb(-1) of data recorded at the Y(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. The decay amplitudes for the different phiK(*0) helicity states are measured from the angular distributions of final state particles in the transversity basis. The longitudinal and transverse complex amplitudes are \A(0)\(2)=0.43+/-0.09+/-0.04, \A(perpendicular to)\(2)=0.41+/-0.10+/-0.04, arg(A(parallel to))=-2.57+/-0.39+/-0.09, and arg(A(perpendicular to))=0.48+/-0.32+/-0.06. The direct CP-violating asymmetries are found to be consistent with zero.
| Type: | Article |
|---|---|
| Title: | Measurement of branching fractions and polarization in B ->phi K-(*) decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.91.201801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.91.201801 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| Keywords: | SEARCH, PHYSICS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1308415 |
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