Open Charm Tomography of Cold and Hot Nuclear Matter
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedade Brasileira de Física
2007
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| author | Ivan Vitev |
| author_facet | Ivan Vitev |
| contents | Open Charm Tomography of Cold and Hot Nuclear Matter Ivan Vitev Física, Astronomía y Matemáticas Open heavy flavor We identify the nuclear effects that modify the cross sections for open heavy flavor production in protonnucleusand nucleus-nucleus collisions. In p+A reactions, we calculate and resum the coherent nuclear-enhancedpower corrections from the final-state parton scattering in the medium. We find that single and double inclusiveopen charm production can be suppressed as much as the yield of neutral pions from dynamical high-twistshadowing. Effects of energy loss in p+A collisions are also investigated. These lead to significantly weakertransverse momentum dependence of the nuclear attenuation and give a sizable contribution to the forward rapidityhadron suppression. In A+A reactions we revisit the question of the measured large heavy flavor quenchingat RHIC. We derive the collisional broadening of the heavy meson´s transverse momentum and the distortion ofits intrinsic light cone wave function. The medium-induced dissociation probability of heavy mesons is shownto be sensitive to the opacity of the quark-gluon plasma and the time dependence of its formation and evolution.In contrast to previous results on heavy quark modification, our approach predicts suppression of B-mesonscomparable to that of D-mesons at transverse momenta as low as pT » 10 GeV. It allows for an improved descriptionof the large attenuation of non-photonic electrons in central Au+Au reactions at RHIC. Preliminaryresults in the implementation of collisional and radiative energy loss in a Langevin simulation approach to heavyquark diffusion and attenuation are also presented. 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437515 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2C Vol.37 |
| format | Artículo científico |
| id | redalyc_46437515 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Open Charm Tomography of Cold and Hot Nuclear Matter Ivan Vitev Física, Astronomía y Matemáticas Open heavy flavor Open Charm Tomography of Cold and Hot Nuclear Matter Ivan Vitev Física, Astronomía y Matemáticas Open heavy flavor We identify the nuclear effects that modify the cross sections for open heavy flavor production in protonnucleusand nucleus-nucleus collisions. In p+A reactions, we calculate and resum the coherent nuclear-enhancedpower corrections from the final-state parton scattering in the medium. We find that single and double inclusiveopen charm production can be suppressed as much as the yield of neutral pions from dynamical high-twistshadowing. Effects of energy loss in p+A collisions are also investigated. These lead to significantly weakertransverse momentum dependence of the nuclear attenuation and give a sizable contribution to the forward rapidityhadron suppression. In A+A reactions we revisit the question of the measured large heavy flavor quenchingat RHIC. We derive the collisional broadening of the heavy meson´s transverse momentum and the distortion ofits intrinsic light cone wave function. The medium-induced dissociation probability of heavy mesons is shownto be sensitive to the opacity of the quark-gluon plasma and the time dependence of its formation and evolution.In contrast to previous results on heavy quark modification, our approach predicts suppression of B-mesonscomparable to that of D-mesons at transverse momenta as low as pT » 10 GeV. It allows for an improved descriptionof the large attenuation of non-photonic electrons in central Au+Au reactions at RHIC. Preliminaryresults in the implementation of collisional and radiative energy loss in a Langevin simulation approach to heavyquark diffusion and attenuation are also presented. 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437515 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2C Vol.37 |
| title | Open Charm Tomography of Cold and Hot Nuclear Matter |
| topic | Física, Astronomía y Matemáticas Open heavy flavor |
| url | https://www.redalyc.org/articulo.oa?id=46437515 |