Ishikawa, A;
Abe, K;
Adachi, I;
Aihara, H;
Anipko, D;
Asano, Y;
Aushev, T;
... Belle Collaboration; + view all
(2006)
Measurement of forward-backward asymmetry and wilson coefficients in B -> K(*)l(+)l(-).
PHYS REV LETT
, 96
(25)
, Article 251801. 10.1103/PhysRevLett.96.251801.
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Abstract
We report the first measurement of the forward-backward asymmetry and the ratios of Wilson coefficients A(9)/A(7) and A(10)/A(7) in B -> K(*)l(+)l(-), where l represents an electron or a muon. We find evidence for the forward-backward asymmetry with a significance of 3.4 sigma. The results are obtained from a data sample containing 386x10(6) (B) over bar pairs that were collected on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
| Type: | Article |
|---|---|
| Title: | Measurement of forward-backward asymmetry and wilson coefficients in B -> K(*)l(+)l(-) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.96.251801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.96.251801 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | RARE B-DECAYS, STANDARD MODEL, S-GAMMA, SUPERSYMMETRY, QUARK |
| 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/1308512 |
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