Determination of the effective strong coupling constant alpha_{s,g_1}(Q^2) from CLAS spin structure function data
| dc.creator | Deur, A. | |
| dc.creator | Burkert, V. | |
| dc.creator | Chen, J. P. | |
| dc.creator | Korsch, W. | |
| dc.date | 2008-03-28 | |
| dc.date | 2008-07-21 | |
| dc.date.accessioned | 2026-07-07T11:33:23Z | |
| dc.date.available | 2026-07-07T11:33:23Z | |
| dc.description | We present a new extraction of the effective strong coupling constant α_{s,g_1}(Q^2). The result agrees with a previous determination and extends the measurement of the low and high Q^2 behavior of α_{s,g_1}(Q^2) that was previously deduced from sum rules. In particular, it experimentally verifies the lack of Q^2-dependence of α_{s,g_1}(Q^2) in the low Q^2 limit. This fact is necessary for application of the AdS/CFT correspondence to QCD calculations. We provide a parameterization of α_{s,g_1}(Q^2) thatcan equivalently be used to parameterize the Q^2-dependence of the generalized Gerasimov-Drell-Hearn and Bjorken sums. | |
| dc.description | Updated to the version published in PLB (minor modifications) | |
| dc.identifier | https://arxiv.org/abs/0803.4119 | |
| dc.identifier | http://arxiv.org/abs/0803.4119 | |
| dc.identifier | Phys.Lett.B665:349-351,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2008.06.049 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197871 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Determination of the effective strong coupling constant alpha_{s,g_1}(Q^2) from CLAS spin structure function data | |
| dc.type | text |