Hints for Enhanced b -> sg from Charm and Kaon Counting
| dc.creator | Kagan, Alexander L. | |
| dc.creator | Rathsman, Johan | |
| dc.date | 1997-01-15 | |
| dc.date.accessioned | 2026-07-07T04:01:10Z | |
| dc.date.available | 2026-07-07T04:01:10Z | |
| dc.description | Previously, motivation for enhanced b -> sg from new flavor physics has centered on discrepancies between theory and experiment. Here two experimental hints are considered: (1) updated measurements of the charm multiplicity and BR(Bbar -> X_{ccbars}) at the Upsilon (4S) imply BR(B -> Xnocharm}) \approx 12.4 \pm 5.6 %, (2) the Bbar} -> K- X and Bbar -> K+/K- X branching fractions are in excess of conventional Bbar -> Xc -> KX yields by about 16.9 \pm 5.6 % and 18 \pm 5.3 %, respectively. JETSET 7.4 was used to estimate kaon yields from ssbar popping in Bbar -> Xcubard decays. JETSET 7.4 Monte Carlos for BR(Bbar -> Xsg) \sim 15 % imply that the additional kaon production would lead to 1 σagreement with observed charged and neutral kaon yields. The Ks momentum spectrum would be consistent with recent CLEO bounds in the end point region. Search strategies for enhanced b -> sg are discussed in light of large theoretical uncertainty in the standard model fast kaon background from b -> s penguin operators. | |
| dc.description | 23 pages, Latex, 1 figure, 6 tables | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9701300 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9701300 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/46800 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Hints for Enhanced b -> sg from Charm and Kaon Counting | |
| dc.type | text |