Measuring B -> tau nu and B_c -> tau nu at the Z peak
| dc.creator | Akeroyd, A. G. | |
| dc.creator | Chen, Chuan Hung | |
| dc.creator | Recksiegel, S. | |
| dc.date | 2008-03-25 | |
| dc.date | 2008-06-19 | |
| dc.date.accessioned | 2026-07-07T11:33:20Z | |
| dc.date.available | 2026-07-07T11:33:20Z | |
| dc.description | The measurement of B->tau nu at the B factories provides important constraints on the parameter tan beta/m_H^+- in the context of models with two Higgs doublets. Limits on this decay from e+e- collisions at the Z peak were sensitive to the sum of B->tau nu and B_c->tau nu. Due to the possibly sizeable contribution from B_c->tau nu we suggest that a signal for this combination might be observed if the LEP L3 Collaboration used their total data of ~3.6 10^6 hadronic decays of the Z boson. Moreover, we point out that a future Linear Collider operating at the Z peak (Giga Z option) could constrain tan beta/m_H^+- from the sum of these processes with a precision comparable to that anticipated at proposed high luminosity B factories from B-> tau nu alone. | |
| dc.description | 12 pages, 4 figures. Value of Vub updated, references added. Version to appear in PRD | |
| dc.identifier | https://arxiv.org/abs/0803.3517 | |
| dc.identifier | http://arxiv.org/abs/0803.3517 | |
| dc.identifier | Phys.Rev.D77:115018,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.115018 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197854 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Measuring B -> tau nu and B_c -> tau nu at the Z peak | |
| dc.type | text |