Exclusive b \to s (d) ll Decays
| dc.creator | Eigen, G. | |
| dc.date | 2008-07-25 | |
| dc.date.accessioned | 2026-07-07T09:52:55Z | |
| dc.date.available | 2026-07-07T09:52:55Z | |
| dc.description | New BABAR measurements are presented for the exclusive rare decays B -> K(*) l+ l- including branching fractions, isospin asymmetries, direct CP violation, and lepton flavor universality for dilepton masses below and above the J/psi resonance. Unexpectedly large isospin asymmetries are observed in both K l+l- and K* l+ l- decays. For the combined K l+l- and K* l+l- data a 3.9 sigma significant deviation from the SM prediction is found. Furthermore, recent BABAR results from an angular analysis in B -> K* l+l- are reported in which both the K* longitudinal polarization and the lepton forward-backward asymmetry are measured for dilepton masses below and above the J/psi resonance. Finally, results of recent searches for B -> pi l+l-$ from Belle and B -> K(*) nu anti nu$ from BABAR are summarized. | |
| dc.description | 14 pages, 28 figures, FPCP08 conference | |
| dc.identifier | https://arxiv.org/abs/0807.4076 | |
| dc.identifier | http://arxiv.org/abs/0807.4076 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/165766 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Exclusive b \to s (d) ll Decays | |
| dc.type | text |