Production of the X(3870) at the Upsilon(4S) by the Coalescence of Charm Mesons
| dc.creator | Braaten, Eric | |
| dc.creator | Kusunoki, Masaoki | |
| dc.date | 2004-02-17 | |
| dc.date | 2004-08-23 | |
| dc.date.accessioned | 2026-07-07T10:29:05Z | |
| dc.date.available | 2026-07-07T10:29:05Z | |
| dc.description | If the recently-discovered charmonium state X(3870) is a loosely-bound molecule of the charm mesons D^0 and \bar D^{*0} or \bar D^0 and D^{*0}, it can be produced in e^+ e^- annihilation at the Υ(4S) resonance by the coalescence of charm mesons produced in the decays of B^+ and B^- mesons. Remarkably, in the case of 2-body decays of the B mesons, the leading contribution to the coalescence probability depends only on hadron masses and on the width and branching fractions of the B meson. As the binding energy E_b of the molecule goes to zero, the coalescence probability scales as E_b^{1/2} log(E_b). Unfortunately, the coalescence probability is also suppressed by two powers of the ratio of the width to the mass of the B meson, and is therefore many orders of magnitude too small to be observed in current experiments at the B factories. | |
| dc.description | 10 pages, revtex4, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0402177 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0402177 | |
| dc.identifier | Phys.Rev.D69:114012,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.69.114012 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177673 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Production of the X(3870) at the Upsilon(4S) by the Coalescence of Charm Mesons | |
| dc.type | text |