Transport coefficients from in-medium quarkonium dynamics
Brambilla, N., Escobedo, M. A., Vairo, A., & Vander Griend, P. (2019). Transport coefficients from in-medium quarkonium dynamics. Physical Review D, 100(5), Article 054025. https://doi.org/10.1103/PhysRevD.100.054025
Julkaistu sarjassa
Physical Review DPäivämäärä
2019Tekijänoikeudet
© Authors, 2019
The in-medium dynamics of heavy particles are governed by transport coefficients. The heavy quark momentum diffusion coefficient, kappa, is an object of special interest in the literature, but one which has proven notoriously difficult to estimate, despite the fact that it has been computed by weak-coupling methods at next-to-leading order accuracy, and by lattice simulations of the pure SU(3) gauge theory. Another coefficient, gamma, has been recently identified. It can be understood as the dispersive counterpart of kappa. Little is known about gamma. Both kappa and gamma arc, however, of foremost importance in heavy quarkonium physics as they entirely determine the in and out of equilibrium dynamics of quarkonium in a medium, if the evolution of the density matrix is Markovian, and the motion, quantum Brownian; the medium could be a strongly or weakly coupled plasma. In this paper, using the relation between kappa, gamma and the quarkonium in-medium width and mass shift respectively, we evaluate the two coefficients from existing 2 + 1 flavor lattice QCD data. The resulting range for kappa is consistent with earlier determinations, the one for gamma is the first nonperturbative determination of this quantity.
...
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
2470-0010Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/33180683
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen AkatemiaRahoitusohjelmat(t)
Akatemiahanke, SALisätietoja rahoituksesta
This work was funded by the Bundesministerium für Bildung und Forschung Project No. 05P2018 and by the DFG cluster of excellence “Universe” (www.universe-cluster.de). The work of M. A. E. was supported by the Academy of Finland Project No. 297058, by Ministerio de Ciencia e Innovacion of Spain under Project No. FPA2017-83814-P and Maria de Maetzu Unit of Excellence MDM-2016- 0692, by Xunta de Galicia and FEDER. ...Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Momentum broadening of an in-medium jet evolution using a light-front Hamiltonian approach
Li, Meijian; Lappi, Tuomas; Zhao, Xingbo; Salgado, Carlos A. (American Physical Society (APS), 2023)Following the nonperturbative light-front Hamiltonian formalism developed in our preceding work [Li. et al. Phys. Rev. D 104, 056014 (2021)], we investigate the momentum broadening of a quark jet inside a SU(3) colored ... -
In-medium jet shape from energy collimation in parton showers: Comparison with CMS PbPb data at 2.76 TeV
Perez-Ramos, Redamy; Renk, Thorsten (American Physical Society, 2014)Abstract: We present the medium-modified energy collimation in the leading-logarithmic approximation (LLA) and next-to-leading-logarithmic approximation (NLLA) of QCD. As a consequence of more accurate kinematic ... -
Systematics of E2 strength in the sd shell with the valence-space in-medium similarity renormalization group
Stroberg, S. R.; Henderson, J.; Hackman, G.; Ruotsalainen, P.; Hagen, G.; Holt, J. D. (American Physical Society (APS), 2022)Background: Recent developments in ab initio nuclear theory demonstrate promising results in medium- to heavy-mass nuclei. A particular challenge for many of the many-body methodologies, however, is an accurate treatment ... -
Quarkonium suppression in heavy-ion collisions: An open quantum system approach
Brambilla, Nora; Escobedo Espinosa, Miguel; Soto, Joan; Vairo, Antonio (American Physical Society, 2017)We address the evolution of heavy-quarkonium states in an expanding quark-gluon plasma by implementing effective field theory techniques in the framework of open quantum systems. In this setting we compute the nuclear ... -
Momentum anisotropy effects for quarkonium in a weakly coupled quark-gluon plasma below the melting temperature
Biondini, S.; Brambilla, N.; Escobedo Espinosa, Miguel; Vairo, A. (American Physical Society, 2017)In the early stages of heavy-ion collisions, the hot QCD matter expands more longitudinally than transversely. This imbalance causes the system to become rapidly colder in the longitudinal direction, and a local momentum ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.