Date & Time: October 30, 2015 at 1pm-3pm
Location: 223 Herman Brown Hall
Home of the Particle and Nuclear Physics groups at Rice University
Posts Tagged ‘STAR’
MS Thesis defense James Daniel Brandenburg
October 30th, 2015 by geurtsNPP Seminar by David Tlusty (Rice Univ)
August 29th, 2015 by geurtsDate: Thursday September 3, 2015 at 4pm
Location: 223 Herman Brown Hall, Rice University
Title: Open Heavy Flavor Measurements at STAR
Speaker: David Tlusty (Rice University)
Abstract:
In relativistic heavy ion collisions at RHIC, heavy quarks are expected to be created from initial hard scatterings. Since heavy quarks have large masses, long life time, and negligible annihilation due to their small population, the number of heavy quarks is conserved during whole medium evolution. The interaction between heavy quarks and the medium is sensitive to the early medium dynamics, therefore heavy quarks are suggested as an ideal probe to quantify the properties of the strongly interacting QCD matter.In this talk, we report on recent STAR results of heavy flavor production at $\sqrt{s_{NN}}$ = 39, 62.4, 193, 200 and 500 GeV in p+p, Au+Au and U+U collisions. We present nuclear modification
factor and elliptic flow of open charm mesons and electrons from semileptonic decays of heavy flavor hadrons. STAR data are compared to theoretical model calculations and physics implications are discussed.
factor and elliptic flow of open charm mesons and electrons from semileptonic decays of heavy flavor hadrons. STAR data are compared to theoretical model calculations and physics implications are discussed.
NPP Seminar by Lijuan Ruan (BNL)
March 24th, 2015 by geurtsDate: Tuesday March 31, 2015 at noon
Location: 223 Herman Brown Hall, Rice University
Title: Electron-Positron Tomography of Quark-Gluon Plasma
Speaker: Lijuan Ruan (BNL)
Abstract:
Electron-positron pairs are penetrating probes of Quark-Gluon Plasma created in relativistic heavy ion collisions. They can provide information deep into the system and early time. At STAR, we use electron-positron tomography to study chiral symmetry, temperature, and lifetime of hot, dense medium. In this talk, I will review recent results and discuss
future perspectives.
NPP Seminar by Grant Webb (BNL)
March 10th, 2015 by geurtsDate: Tuesday March 17, 2015 at noon
Location: 223 Herman Brown Hall, Rice University
Title: Exploring the Gluon Spin Structure of the Proton using the STAR Detector at RHIC
Speaker: Grant Webb (BNL)
Abstract:
After 20 years of experimental efforts the individual parton (quarks and gluons) con- tributions to the spin of the nucleon has not been solved. Precise measurements in po- larized deep inelastic scattering clearly indicate that the spin of the nucleon cannot be explained by the contribution of the quarks alone. The polarized proton-proton collider at RHIC provides direct access to the gluon spin distribution through longitudinal double spin asymmetry measurements of inclusive jets, pions, and dijets. The STAR detector, with its full azimuthal coverage, grants excellent jet reconstruction capabilities. This presentation will focus on the methods used to determine the polarization of the proton beams required to extract any spin dependent result. In addition, the jet reconstruction process and the recent spin results from STAR will be discussed and the impact they have on constraining the gluon spin contribution to the proton’s spin.
Muonic atoms at RHIC (HotQuarks ’14 proceedings), K. Xin
December 18th, 2014 by geurtsProceedings of Hot Quarks 2014 conference. To be appear in Journal of Physics: Conference Series
Physicists Narrow Search for Solution to Proton Spin Puzzle
November 5th, 2014 by geurtsNew RHIC results reveal that gluons make a significant contribution to spin, an important intrinsic particle property; transient sea quarks also play a role.
BNL press release at http://www.bnl.gov/newsroom/news.php?a=25112
Dielectron production in Au + Au collisions from STAR (HardProbes ’13 proceedings), J. Butterworth
October 30th, 2014 by geurtsin press
Search for Muonic Atoms at RHIC (PANIC’14 proceedings), K. Xin
October 30th, 2014 by geurtssubmitted
RHIC featured at NPR’s Science Friday: How to Make Quark Soup
October 20th, 2014 by geurts
Watch at this direct link to PRI’s video. Or, go to PRI’s Science Friday website at How to Make Quark Soup and find audio and video links.
RHIC featured on the Science Channel
August 15th, 2014 by geurtsThe Relativistic Heavy-Ion Collider (RHIC) featured in “How The Universe Works” on the Science Channel. With STAR’s Mike Lisa (OSU) explaining RHIC’s role in exploring the building blocks of matter.