Determination of the magnetic susceptibility of the quark condensate using radiative heavy meson decays
| dc.creator | Rohrwild, J. | |
| dc.date | 2007-08-10 | |
| dc.date | 2007-08-23 | |
| dc.date.accessioned | 2026-07-07T12:23:57Z | |
| dc.date.available | 2026-07-07T12:23:57Z | |
| dc.description | We use a light-cone sum rule (LCSR) analysis of the branching ratios of radiative meson decays to contrain the value of the magnetic susceptibility of the quark condensate $χ(μ)$. For the first time, we use a complete set of three-particle distribution amplitudes that enables us to give a consistent prediction for the branching ratios. Furthermore we will make use of a very recent update of several non-perturbative parameters. Our final result for $χ(μ= 1 {\rm GeV})= 2.85 \pm 0.5 {\rm GeV}^{-2}$ (assuming asymptotic wave functions) agrees with the currently used value of $3.15 \pm 0.3 {\rm GeV}^{-2}$. | |
| dc.description | 21 pages, 4 figures, references added | |
| dc.identifier | https://arxiv.org/abs/0708.1405 | |
| dc.identifier | http://arxiv.org/abs/0708.1405 | |
| dc.identifier | JHEP 0709:073,2007 | |
| dc.identifier | doi:10.1088/1126-6708/2007/09/073 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214168 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Determination of the magnetic susceptibility of the quark condensate using radiative heavy meson decays | |
| dc.type | text |