论文标题
魅力产生:对运输模型的限制和爱丽丝的魅力扩散系数
Charm production: constraints to transport models and charm diffusion coefficient with ALICE
论文作者
论文摘要
在这项贡献中,在$ \ sqrt {s_ \ mathrm {nn}} = 5.02 $ tev the Alice Collonsation在$ \ sqrt {s_ \ mathrm {s_ \ mathrm {s_ \ mathrm {s_ \ mathrm {s_ \ sqrt {s_ \ sqrt {s_ \ sqrt collisions中的核修饰因子和方位角各向异性。重夸克是一个非常合适的探针,用于研究重型离子碰撞中产生的夸克 - 胶状等离子体(QGP),因为它们主要是在硬冰的过程中产生的,因此与QGP相比,时间尺度较短。因此,通过与理论模型进行比较,对核核碰撞中魅力量产生的魅力量产生的测量可用于研究中等魅力的夸克能量损失的性质。描述在流体动力扩展QGP中重型流动运输和能量损失的模型还需要对重型夸克的中等强化进行精确建模,这是通过及时的$ \ mathrm {d_s^+} $ mesons和$λ__\ mathrm {c} c} $ {c} $ baryons的迅速$ \ mathrm {d_s^+} $ mesons和$λ_\ mathrm {d_s^+} $ baryons进行了研究。
In this contribution, the nuclear modification factor and azimuthal anisotropy of prompt charm mesons and baryons in Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02$ TeV by the ALICE Collaboration are presented. Heavy quarks are a very suitable probe to investigate the quark-gluon plasma (QGP) produced in heavy-ion collisions, since they are mainly produced in hard-scattering processes and hence in shorter timescales compared to the QGP. Measurements of charm-hadron production in nucleus-nucleus collisions are therefore useful to study the properties of the in-medium charm-quark energy loss via the comparison with theoretical models. Models describing the heavy-flavour transport and energy loss in a hydrodynamically expanding QGP require also a precise modelling of the in-medium hadronisation of heavy quarks, which is investigated via the measurement of prompt $\mathrm{D_s^+}$ mesons and $Λ_\mathrm{c}^{+}$ baryons.