Mass shift of charmonium states in p¯A collision

  title={Mass shift of charmonium states in p¯A collision},
  author={Gy. Wolf and G{\'a}bor P{\'e}ter Balassa and P'eter Kov'acs and Mikl'os Z'et'enyi and Su Houng Lee},
  journal={Physics Letters B},
Abstract The masses of the low lying charmonium states, namely, the J / Ψ , Ψ ( 3686 ) , and Ψ ( 3770 ) are shifted downwards due to the second order Stark effect. In p ¯ + Au collisions at 6–10 GeV we study their in-medium propagation. The time evolution of the spectral functions of these charmonium states is studied with a Boltzmann–Uehling–Uhlenbeck (BUU) type transport model. We show that their in-medium mass shift can be observed in the dilepton spectrum. Therefore, by observing the… Expand
3 Citations

Figures and Tables from this paper

Properties of ΣQ⁎, ΞQ⁎ and ΩQ⁎ heavy baryons in cold nuclear matter
Abstract The in-medium properties of the heavy spin-3/2 Σ Q ⁎ , Ξ Q ⁎ and Ω Q ⁎ baryons with Q being b or c quark are investigated. The shifts in some spectroscopic parameters of these particles dueExpand
Influence of anisotropic Λ/Σ creation on the Ξ− multiplicity in subthreshold proton–nucleus collisions
Abstract We present an analysis of Ξ − baryon production in subthreshold proton–nucleus ( p + A ) collisions in the framework of a BUU type transport model. We propose a new mechanism for ΞExpand
Charmed and bottomed hadronic cross sections from a statistical model
In this work, we extended our statistical model with charmed and bottomed hadrons, and fit the quark creational probabilities for the heavy quarks, using low energy inclusive charmonium andExpand


In-medium spectral functions of charmonia studied by ¯p + A reactionsa
Abstract:We study the perspectives of resonant charmonium production in ¯p + A reactions within the Multiple Scattering Monte Carlo (MSMC) approach. We calculate the production of the resonancesExpand
D mesons in matter and the in-medium properties of charmonium
Abstract We study the changes in the partial decay widths of excited charmonium states into D D , when the D -meson mass decreases in nuclear matter, taking the internal structure of the hadrons intoExpand
Charmonium mass in nuclear matter
The mass shift of charmonium states in nuclear matter is studied in the perturbative QCD approach. The leading-order effect due to the change of gluon condensate in nuclear matter is evaluated usingExpand
Charmonium mass in hot and dense hadronic matter
We investigate mass shifts of charmonia driven by change of the gluon condensate below but near transition temperatures at finite baryonic chemical potential. Extending previous prescription on theExpand
Charmonium dynamics in nucleus-nucleus collisions at SPS and FAIR energies
Abstract Charmonium production and suppression in In + In and Pb + Pb reactions at SPS energies is investigated with the HSD transport approach within the ‘hadronic comover model’ as well as the ‘QGPExpand
ηc puzzle in quantum chromodynamics
The mass of the η c meson is calculated by means of QCD sum rules. If the spectrum of the 0 − states of charmonium contains a single prominent resonance, like the J/ψ in the case of vector states,Expand
Dilepton production in heavy-ion collisions
Abstract The dynamical evolution of nucleus-nucleus collisions is described by a transport equation of the Uehling-Uhlenbeck type. Our model evolves phase-space distribution functions for nucleons,Expand
Semiclassical transport of hadrons with dynamical spectral functions in A+A collisions at SIS/AGS energies☆
Abstract The transport of hadrons with dynamical spectral functions A h (X, P ,M 2 ) is studied for nucleus–nucleus collisions at SIS and AGS energies in comparison to the conventional quasiparticleExpand
Power corrections to αs(Mτ), |Vus| and m¯s
Abstract We re-examine recent determinations of power corrections from τ-decay and confront the results with the existing ones from QCD spectral sum rules (QSSR). We conclude that contrary to theExpand
Propagation of spectral functions and dilepton production at SIS energies
The time evolution of vector meson spectral functions is studied within a BUU-type transport model. Applications focus on ρ and ω mesons being important pieces for the interpretation of theExpand