Hard Probe 2016

Session

Parallel Session III: EM Probes (III)

24 Sept 2016, 14:00

Jing-Zhou Hall (East Lake International Conference Center)

Conveners

Parallel Session III: EM Probes (III)

• Axel Drees

95. Production of e$^{-}$e$^{+}$ from U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV and Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6, 27, 39, 62.4, and 200 GeV as measured by STAR

Joey Butterworth (Rice University)

24/09/2016, 14:00

Dileptons are able to traverse a strongly interacting medium with minimal interactions and thus are excellent probes of the hot, dense, and strongly interacting medium created in relativistic heavy-ion collisions. For the dileptons with an invariant mass less than ~1.2 GeV/c$^{2}$, the production is predominately from vector-meson decays. Information about any in-medium modifications of the...

190. Measurement of W and Z boson production in 5 TeV pp, p+Pb and Pb+Pb collisions with the ATLAS detector

Mirta Dumancic (Weizmann Institute of Science (IL))

24/09/2016, 14:20

W and Z bosons are short lived and do not interact strongly. Thus their production yields, observed via dilepton decay channels in proton-lead and lead-lead collisions, provide direct tests of both binary collision scaling and the nuclear modification of parton distribution functions (nPDF). Proton-lead collisions further provide an excellent opportunity to test nPDFs. The ATLAS detector...

45. Probing cold nuclear medium effect with $W^{\pm}/Z^0$ at NLO and NNLO in heavy-ion collisions

Peng Ru (Dalian University of Technology)

24/09/2016, 14:40

The production of massive vector boson ($W^{\pm}/Z^0$), is an excellent probe of the cold nuclear medium effect, and can provide useful constraints on the nuclear parton distribution (nPDFs), in heavy-ion collisions at the LHC and the future colliders with much higher energies.

Within the framework of perturbative QCD, we systematically study the vector boson production in p+Pb and Pb+Pb...

34. Photon from the Color Glass Condensate in the pA collision

Sanjin Benic (University of Tokyo)

24/09/2016, 15:00

In this contribution I will talk about our recent results on photon production from the Color Glass Condensate (CGC) in the high energy pA collision. The nucleus is considered as a dense source of soft gluons while the proton is more dilute. This allows a systematic expansion of the amplitude in the powers of the gluon density of the proton.
The zeroth order approximation comes from...

127. Photon production in the early stages of ultrarelativistic heavy ion collisions

Marco Ruggieri

24/09/2016, 15:20

We introduce a model for the early stages of ultrarelativistic heavy ion collisions, in which initial strong color fields decay to a quark-gluon plasma via the Schwinger mechanism; the dynamics of the coupled fields+plasma system is studied consistently by means of relativistic transport theory coupled to classical equations of motion for the fields. This model is useful to grasp important...