The Cabibbo angle : an algebraic calculation
| dc.creator | Duret, Quentin | |
| dc.creator | Machet, Bruno | |
| dc.date | 2006-07-18 | |
| dc.date | 2006-09-11 | |
| dc.date.accessioned | 2026-07-07T07:16:44Z | |
| dc.date.available | 2026-07-07T07:16:44Z | |
| dc.description | We show that the Cabibbo angle theta\_c satisfies the relation tan(2 theta\_c)=-+/- 1/2 when universality for diagonal neutral currents of mass eigenstates is satisfied at the same level of accuracy as the absence of their off-diagonal counterparts. The predicted value is cos theta\_c \approx 0.9732, only 7/10000 away from experimental results. No mass ratio appears in the calculation. theta\_c occurs a priori for both quark species, and, showing that one recovers the standard dependence of leptonic and semi-leptonic decays of pseudoscalar mesons, we advocate, like for neutrinos and charged leptons, for a symmetrical treatment of u and d-type quarks. | |
| dc.description | The Cabibbo angle can be positive or negative, which was overlooked in the first version. Minor addenda | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0607193 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0607193 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/113698 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | The Cabibbo angle : an algebraic calculation | |
| dc.type | text |