491 research outputs found
Heavy-flavor observables at RHIC and LHC
We investigate the charm-quark propagation in the QGP media produced in
ultrarelativistic heavy-ion collisions at RHIC and the LHC. Purely collisional
and radiative processes lead to a significant suppression of final -meson
spectra at high transverse momentum and a finite flow of heavy quarks inside
the fluid dynamical evolution of the light partons. The -meson nuclear
modification factor and the elliptic flow are studied at two collision
energies. We further propose to measure the triangular flow of mesons,
which we find to be nonzero in non-central collisions.Comment: Proceedings of the 24th Quark Matter conference, 19-24 May 2014,
Darmstadt, Germany. 4 p
Gluons and the eta' nucleon coupling constant
We derive the effective chiral Lagrangian for low energy eta--nucleon and
eta'--nucleon interactions and show that gluonic degrees of freedom, via the
axial anomaly, induce a contact term in the pp -> pp eta and pp -> pp eta'
reactions. We then discuss the consequences for the extraction of g_{eta'NN}
from experimental data.Comment: 10 pages, LaTe
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Development of an in-basket exercise designed to measure potential leadership skills by Coleen Beth Dennison.
This research is to develop in-basket work samples to measure an individual\u27s willingness and ability to display behaviors that are often associated with successful leadership in organizations as described by Bass
Elliptic flow of resonances at RHIC: probing final state interactions and the structure of resonances
We propose the measurement of the elliptic flow of hadron resonances at the
Relativistic Heavy Ion Collider as a tool to probe the amount of hadronic final
state interactions for resonances at intermediate and large transverse momenta.
This can be achieved by looking at systematic deviations of the measured flow
coefficient from the scaling law given by the quark recombination
formalism. Our method can be generalized to explore the structure of exotic
particles, such as the recently found pentaquark .Comment: 5 pages, 2 figures; v2: accepted version for publication in Physical
Review C rapid communication
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