The 5th Asian Triangle Heavy Ion Conference (ATHIC2014)

Session

Electromagnetic probes

6 Aug 2014, 14:00

Osaka Univiersity

46. Dielectron measurement in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with the ALICE detector

Shinichi Hayashi (University of Tokyo (JP))

06/08/2014, 14:00

parallel

The primary role of the ALICE experiment is to investigate the properties of the deconfined state of matter, the quark-gluon plasma (QGP), created in relativistic heavy-ion collisions. Electron-positron pairs (dielectrons) are excellent probes for studying the properties of QGP. In the low mass region below 1 GeV/$c^{2}$, dielectrons from light vector meson decays and virtual photons are...

47. Measurements of di-electron production in Au+Au collisions at RHIC-PHENIX

Dr Yosuke Watanabe (University of Tokyo)

06/08/2014, 14:20

parallel

The measurement of di-electrons is a powerful tool to study the properties of the strongly interacting matter formed in heavy-ion collisions. Since electrons are not subject to final state interactions, they carry the information at the time of their production. In an earlier di-electron measurement by PHENIX[1], a large enhancement of a factor of $\sim$5 with respect to expected hadronic...

2. Photons from hot dense matter

Prof. Fu-Ming Liu (CCNU)

06/08/2014, 14:40

parallel

High energy photons have been measured in heavy ion collisions, at both RHIC and LHC. The direct photons, not from decay, carries a special information of the expanding system. This is studied with (3+1)-dimensional ideal hydrodynamics, constrained with a large collection of data of various hadrons. Thus a comparison between a realistic calculation and the photon data from both LHC and RHIC...

37. Study of di-electron asymmetry in Au+Au collisions at RHIC-PHENIX

Mr Tomoya Hoshino (Hiroshima University)

06/08/2014, 15:00

parallel

Creation of a strong magnetic field in non-central heavy-ion collisions is predicted by several models. The field can reach as high as $10^{14}$ teslas at RHIC. Some interesting effects in a strong magnetic filed are discussed by theories but the field is yet to be directly detected experimentally. Direct (virtual) photons are good candidates for a probe of the field detection, because they...

33. Search for intense magnetic field via electron-positron pair asymmetry measurements in Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV with ALICE

Remi Tanizaki (Hiroshima University (JP))

06/08/2014, 15:20

parallel

We aim to experimentally detect an intense magnetic field to be created in heavy ion collisions. The intensity of this magnetic field in non-central collisions should reach ~${10^{14}}$ T at the LHC energies. Interesting expectations in the very intense field, such as chiral magnetic effects, synchrotron radiation, photon decay and so on, have been theoretically discussed in the recent years....

39. Non-perturbative dilepton production rate in strongly interacting QGP

Mr Taekwang KIM (Osaka University)

06/08/2014, 15:40

parallel

We analyze the production rate of dileptons from the deconfined medium using a quark propagator obtained from a first principle lattice QCD numerical simulation. We calculate the dilepton production rate non-perturbatively at two temperatures in the deconfined phase with the quark propagator measured on the lattice. The photon-quark vertex is determined gauge-invariantly, so as to satisfy the...