Bounds on the Light Quark Masses: the scalar channel revisited
| dc.creator | Dominguez-Clarimon, Alexandre | |
| dc.creator | de Rafael, Eduardo | |
| dc.creator | Taron, Josep | |
| dc.date | 2007-10-02 | |
| dc.date | 2007-12-22 | |
| dc.date.accessioned | 2026-07-07T11:37:44Z | |
| dc.date.available | 2026-07-07T11:37:44Z | |
| dc.description | We evaluate lower bounds on the sum of the up and down quark masses. The bounds follow from the constraints provided by the dispersion relation obeyed by the two--point function of the scalar current density when combined with properties of the scalar spectral function at long--distances and perturbative QCD at short--distances. Our results point to values of $m_u+m_d$ somewhat higher than those reported recently in the literature using lattice QCD simulations. | |
| dc.description | 7 pages, 3figures. A few sentences have been added to improve clarity. One reference added. To be published in PLB | |
| dc.identifier | https://arxiv.org/abs/0710.0543 | |
| dc.identifier | http://arxiv.org/abs/0710.0543 | |
| dc.identifier | Phys.Lett.B660:49-53,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2007.12.033 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199310 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Bounds on the Light Quark Masses: the scalar channel revisited | |
| dc.type | text |