Chinese Physics C > 2010, Vol. 34 > Issue(9): 1491-1493 DOI: 10.1088/1674-1137/34/9/081

QGP tomography with photon tagged jets in ALICE

1.
Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China2 CERN, Geneva 23, Switzerland3 Laboratoire de Physique Subatomique et de Cosmologie, CNRS/IN2P3, Grenoble 38026, France4 Laboratori Nazionali di Frascati, INFN, Frascati, Italy
2.
Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China2 CERN, Geneva 23, Switzerland3 Laboratoire de Physique Subatomique et de Cosmologie, CNRS/IN2P3, Grenoble 38026, France4 Laboratori Nazionali di Frascati, INFN, Frascati, Italy

Abstract
HTML
Reference
Related

PDF

Abstract：

γ+jet events provide a tomographic measurement of the medium formed in heavy ion collisions at LHC energies. Tagging events with a well identified high p_Tdirect photon and measuring the correlation distribution of hadrons emitted oppositely to the photon in ALICE, allows us to determine, with a good approximation, both the jet fragmentation function and the back-to-back azimuthal alignment of the direct photon and the jet. Comparing these two observables measured in pp collisions with the ones measured in AA collisions will reveal the modifications of the jet structure induced by the medium formed in AA collisions and consequently will infer the medium properties.

[1]	Jun Yan,Shi-Yong Chen,Wei Dai,Zhang Ben-Wei,En-Ke Wang. Medium modifications of girth distributions for inclusive jets andZ⁰+jets in relativistic heavy-ion collisions at the LHC. Chinese Physics C, 2021, 45(2): 024102.doi:10.1088/1674-1137/abca2b
[2]	Pazilet Obul,Mamut Ababekri,Sayipjamal Dulat,Joshua Isaacson,Carl Schmidt,C. -P. Yuan. Implications of CMS analysis of photon-photon interactionsfor photon PDFs. Chinese Physics C, 2018, 42(11): 113101.doi:10.1088/1674-1137/42/11/113101
[3]	FAN Xing-Ming,WANG Yi,WANG Xue-Wu,ZENG Zhi,ZENG Ming,ZHAO Zi-Ran,CHENG Jian-Ping. A position resolution MRPC for muon tomography. Chinese Physics C, 2014, 38(4): 046003.doi:10.1088/1674-1137/38/4/046003
[4]	HUANG Rui-Dian,CAI Xu,QIAN Wan-Yan,YANG Chun-Bin. Distributions and correlations of constituent quarks in jets. Chinese Physics C, 2011, 35(6): 561-566.doi:10.1088/1674-1137/35/6/010
[5]	WANG Bin,CHEN Ya-Zheng,LI Xue-Qian. Earthquake forecast via neutrino tomography. Chinese Physics C, 2011, 35(4): 325-332.doi:10.1088/1674-1137/35/4/002
[6]	N. N. Achasov,G. N. Shestakov. Nature of light scalars through photon-photon collisions. Chinese Physics C, 2010, 34(6): 807-815.doi:10.1088/1674-1137/34/6/032
[7]	HAN Yun-Cheng,Nobuyuki Chiga,Yu Fujii,Kenta Futatsukawa,Osamu Hashimoto,Kentaro Hirose,Takatsugu Ishikawa,Hiroki Kanda,Masashi Kaneta,Daisuke Kawama,Yue Ma,Kazushige Maeda,Tomofumi Maruta,Nayuta Maruyama,Akihiko Matsumura,Youhei Miyagi,Koji Miwa,Satoshi N,Hajime Shimizu,Koutarou Shirotori,Koutaku Suzuki,Tadaaki Tamae,Hirokazu Tamura,Kyo Tsukada,WANG Tie-Shan,Hirohito Yamazaki. Energy calibration of tagged photons by the d(γ, π^－pp) reaction. Chinese Physics C, 2010, 34(1): 35-38.doi:10.1088/1674-1137/34/1/006
[8]	FU Yong-Ping,LI Yun-De. Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP. Chinese Physics C, 2010, 34(2): 186-191.doi:10.1088/1674-1137/34/2/006
[9]	E. A. Kuraev,A. L. Sibidanov. Monte Carlo generator photon jets used for luminosity at e⁺e^－colliders. Chinese Physics C, 2010, 34(6): 877-882.doi:10.1088/1674-1137/34/6/044
[10]	ZHOU Dai-Cui,WAN Ren-Zhuo,MAO Ya-Xian,WANG Meng-Liang,MA Ke,WANG Ya-Ping,YIN Zhong-Bao,CAI Xu,for the,ALICE collaboration. High pt and photon physics with ALICE at LHC. Chinese Physics C, 2010, 34(9): 1383-1386.doi:10.1088/1674-1137/34/9/048
[11]	WAN Ren-Zhuo,XU Chun-Cheng,ZHOU Dai-Cui,YIN Zhong-Bao. Track matching study from TPC to PHOS in ALICE. Chinese Physics C, 2008, 32(8): 620-623.doi:10.1088/1674-1137/32/8/006
[12]	MAO Ya-Xian,ZHOU Dai-Cui,XU Chun-Cheng,YIN Zhong-Bao. Study of the photon identification efficiency with ALICE photon spectrometer. Chinese Physics C, 2008, 32(7): 543-547.doi:10.1088/1674-1137/32/7/006
[13]	YIN Zhong-Bao,ZHOU Dai-Cui. Performance of the ALICE PHOS Front-End Electronics. Chinese Physics C, 2006, 30(12): 1165-1170.
[14]	WANG Ya-Ping,CAI Xu. ALICE Experiment at LHC and its Trigger Decision of PHOS. Chinese Physics C, 2006, 30(12): 1218-1221.
[15]	WANG Ya-Ping,CAI Xu. Simulation Studies on the Trigger Decision Criterion of Photon Spectrometer in ALICE Experiment. Chinese Physics C, 2006, 30(7): 606-611.
[16]	YAN WenBiao,YANG ChunBin,CAI Xu. A Poissible Method to Determine the Order of QGP Phase Transitions. Chinese Physics C, 2000, 24(9): 852-857.
[17]	Gao Song,Liu Bo,Zhao Weiqin. Thermal Mass of the Gluon and the Disociation of J/ψ and ψ′in QGP Environment. Chinese Physics C, 1997, 21(4): 322-329.
[18]	Chen Xiangjun. Classical Transport Equation of Gluons in QGP. Chinese Physics C, 1997, 21(7): 597-603.
[19]	Gao Song,Li Jiarong. The Statistical Effect of the Internal Lines Within the Reaction Process in QGP. Chinese Physics C, 1994, 18(3): 229-234.
[20]	Yuan Suanggui,Xu Shuwei,Pan Qiangyan,Qu Xiulan. Functions of the ALICE Code and Its Utilization. Chinese Physics C, 1993, 17(12): 1065-1069.

Access

Get Citation

MAO Ya-Xian, Yves Schutz, ZHOU Dai-Cui, Christophe Furget and Gustavo Conesa Balbastre. QGP tomography with photon tagged jets in ALICE[J]. Chinese Physics C, 2010, 34(9): 1491-1493. doi: 10.1088/1674-1137/34/9/081

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-03-04
Revised: 1900-01-01

Article Metric

Article Views(3547)
PDF Downloads(379)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

QGP tomography with photon tagged jets in ALICE

Corresponding author:MAO Ya-Xian,

1. Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China2 CERN, Geneva 23, Switzerland3 Laboratoire de Physique Subatomique et de Cosmologie, CNRS/IN2P3, Grenoble 38026, France4 Laboratori Nazionali di Frascati, INFN, Frascati, Italy

2. Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China2 CERN, Geneva 23, Switzerland3 Laboratoire de Physique Subatomique et de Cosmologie, CNRS/IN2P3, Grenoble 38026, France4 Laboratori Nazionali di Frascati, INFN, Frascati, Italy

Received Date:2010-03-04

Accepted Date:1900-01-01

Available Online:2010-09-05

Abstract:

γ+jet events provide a tomographic measurement of the medium formed in heavy ion collisions at LHC energies. Tagging events with a well identified high p_Tdirect photon and measuring the correlation distribution of hadrons emitted oppositely to the photon in ALICE, allows us to determine, with a good approximation, both the jet fragmentation function and the back-to-back azimuthal alignment of the direct photon and the jet. Comparing these two observables measured in pp collisions with the ones measured in AA collisions will reveal the modifications of the jet structure induced by the medium formed in AA collisions and consequently will infer the medium properties.

QGP tomography with photon tagged jets in ALICE

Abstract：

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article

QGP tomography with photon tagged jets in ALICE

Corresponding author:MAO Ya-Xian,

HTML

目录