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In the hadroproduction of charm (or heavy flavours in general) in the context of string fragmentation, the pull of a beam remnant at the other end of a string may give a charm hadron more energy than the perturbatively produced one. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Norrbin

Charm spectroscopy has studied under a string model. Charmed baryons are composed of diquark and charm quark which are connected by a constant tension. In a diquark picture, the quantum numbers $J^P$ of confirmed baryons are well assigned.…

High Energy Physics - Phenomenology · Physics 2010-04-28 Q. W. Wang , P. M. Zhang

Ratios of cumulants of conserved net charge fluctuations are sensitive to the degrees of freedom that are carriers of the corresponding quantum numbers in different phases of strong interaction matter. Using lattice QCD with 2+1 dynamical…

Charm elliptic flow in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) is studied in a multiphase transport model. Assuming that the cross section for charm quark scattering with other light quarks is the same as that…

Nuclear Theory · Physics 2007-05-23 Bin Zhang , Lie-Wen Chen , Che-Ming Ko

Studies of systems with two fermionic bands with repulsive interaction strength U have a long history, with the Periodic Anderson Model (PAM) being one of the most frequently considered Hamiltonians. In this paper, we use Quantum Monte…

Strongly Correlated Electrons · Physics 2012-12-13 Aleksander Zujev , Richard T. Scalettar , George G. Batrouni , Pinaki Sengupta

Heavy flavor supplies a chance to constrain and improve the hadronization mechanism. We have established a sequential coalescence model with charm conservation and applied it to the charmed hadron production in heavy ion collisions. The…

High Energy Physics - Phenomenology · Physics 2021-02-03 Jiaxing Zhao , Shuzhe Shi , Nu Xu , Pengfei Zhuang

We present a formulation of the Constrained Path Monte Carlo (CPMC) method for fermions that uses trial wave-functions that include many-body effects. This new formulation allows us to implement a whole family of generalized mean-field…

Superconductivity · Physics 2009-10-31 M. Guerrero , G. Ortiz , J. E. Gubernatis

A study of elliptic flow of open charm mesons, $D^0$ and $D_S ^\pm$ using quark coalescence as a mechanism of hadronization of heavy quarks implemented in conjunction with A Multi Phase Transport (AMPT) model has been presented. We have…

Nuclear Theory · Physics 2017-04-05 Roli Esha , Md. Nasim , Huan Zhong Huang

Heavy quarks produced in pp and heavy ion collisions are studied using heavy-flavour decay electrons and heavy-flavour mesons. Detailed understanding of the production processes and fragmentation of heavy quarks can be obtained by studying…

High Energy Physics - Experiment · Physics 2019-08-21 Deepa Thomas

We study the nature of charm degrees of freedom in hot strong interaction matter by performing lattice QCD calculations of the second and fourth-order cumulants of charm fluctuations, and their correlations with net baryon number, electric…

High Energy Physics - Lattice · Physics 2024-02-16 A. Bazavov , D. Bollweg , O. Kaczmarek , F. Karsch , S. Mukherjee , P. Petreczky , C. Schmidt , Sipaz Sharma

We consider a one-dimensional Hubbard model in the presence of disorder. We compute the charge stiffness for a mesoscopic ring, as a function of the size $L$, which is a measure of the permanent currents. We find that for finite disorder…

Condensed Matter · Physics 2009-10-22 T. Giamarchi , B. S. Shastry

We present an overview of the recent abundant measurements for charm production at RHIC. The significant information of charm cross sections in different collision system at 200 GeV and charmed hadron freeze-out and flow properties…

Nuclear Experiment · Physics 2008-11-26 Yifei Zhang

Various mechanisms have been put forward for cuprate superconductivity, which fit largely into two camps: spin-fluctuation and electron-phonon (el-ph) mechanisms. However, in spite of a large effort, electron-phonon interactions are not…

Superconductivity · Physics 2011-11-09 J. P. Hague , P. E. Kornilovitch , A. S. Alexandrov , J. H. Samson

We study the production of charmed hadrons $D^{0}$ and $\Lambda_c^+$ in relativistic heavy-ion collisions using an improved quark coalescence model. In particular, we extend the usual coalescence model by letting a produced hadron to have…

Nuclear Theory · Physics 2020-04-21 Sungtae Cho , Kai-Jia Sun , Che Ming Ko , Su Houng Lee , Yongseok Oh

We study the dynamics of charm quarks in the partonic medium and its implication to the di-electron spectra in high energy heavy ion collisions. The charm quarks traversing a thermal medium is simulated by the relativistic Langevin equation…

Nuclear Theory · Physics 2014-05-22 Hao-jie Xu , Xin Dong , Li-juan Ruan , Qun Wang , Zhang-bu Xu , Yi-fei Zhang

In this article, we report a fully ab initio variational Monte Carlo study of the linear, and periodic chain of Hydrogen atoms, a prototype system providing the simplest example of strong electronic correlation in low dimensions. In…

Strongly Correlated Electrons · Physics 2015-05-30 Lorenzo Stella , Claudio Attaccalite , Sandro Sorella , Angel Rubio

We develop for charmed hadron production in relativistic heavy-ion collisions a comprehensive coalescence model that includes an extensive set of $s$ and $p$-wave hadronic states as well as the strict energy-momentum conservation, which…

We consider the production of charmed baryons and mesons in the proton-antiproton binary reactions at the energies of the future $\bar{P}$ANDA experiment. To describe these processes in terms of hadronic interaction models, one needs strong…

High Energy Physics - Phenomenology · Physics 2015-06-03 A. Khodjamirian , Ch. Klein , Th. Mannel , Y. -M. Wang

LHCb continues to expand its world-leading sample of charmed hadrons collected during LHC's Run 1 (2010-2012) and Run 2 (2015-present). This sample is yielding some of the most stringent tests of the Standard Model understanding of charm…

High Energy Physics - Experiment · Physics 2018-07-01 Wojciech Krzemien

In the present work, we adopt a relativistic constituent quark model to depict the charmed strange meson spectroscopy, in which $D_{s0}(2317)$ and $D_{s1}(2460)$ are considered as the $1^3P_0$ and $1P_1^\prime$ charmed strange mesons,…

High Energy Physics - Phenomenology · Physics 2020-04-22 Shao-Feng Chen , Jing Liu , Hai-Qing Zhou , Dian-Yong Chen