Collisional dissociation of heavy mesons in dense QCD matter
| dc.creator | Adil, Azfar | |
| dc.creator | Vitev, Ivan | |
| dc.date | 2006-11-09 | |
| dc.date | 2007-05-25 | |
| dc.date.accessioned | 2026-07-07T10:42:12Z | |
| dc.date.available | 2026-07-07T10:42:12Z | |
| dc.description | In the framework of the reaction operator approach we calculate and resum the multiple elastic scattering of a fast $q \bar{q}$ system traversing dense nuclear matter. We derive the collisional broadening of the meson's transverse momentum and the distortion of its intrinsic light cone wave function. The medium-induced dissociation probability of heavy mesons is shown to be sensitive to the opacity of the quark-gluon plasma and the time dependence of its formation and evolution. We solve the system of coupled rate equations that describe the competition between the fragmentation of $c$- and $b$-quarks and the QGP-induced dissociation of the $D$- and $B$-mesons to evaluate the quenching of heavy hadrons in nucleus-nucleus collisions. In contrast to previous results on heavy quark modification, this approach predicts suppression of $B$-mesons comparable to that of $D$-mesons at transverse momenta as low as $p_T \sim 10$ GeV. It allows for an improved description of the large attenuation of non-photonic electrons in central Au+Au reactions at RHIC. | |
| dc.description | 8 pages, 5 figures. Figures and references updated, typos corrected. As published in Phys.Lett.B | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0611109 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0611109 | |
| dc.identifier | Phys.Lett.B649:139-146,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.03.050 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181864 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Collisional dissociation of heavy mesons in dense QCD matter | |
| dc.type | text |