Direct photons in ATLAS@LHC

Mark D. Baker; Jiangyong Jia; Peter Steinberg

doi:10.1007/s12648-010-0161-5

Direct photons in ATLAS@LHC

Mark D. Baker
, Jiangyong Jia
, Peter Steinberg

Chemistry

Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

The ATLAS detector at the LHC is capable of efficiently separating photons and neutral hadrons based on their shower shapes over a wide range in η,φ, and E_T , either in addition to or instead of isolation cuts. This provides ATLAS with a unique strength for direct photon and γ-jet physics ("tomography") as well as access to the unique capability to measure non-isolated photons from fragmentation or from the medium. We present a first look at the ATLAS direct photon measurement capabilities in p+p and Pb+Pb collisions at LHC energies over the region |η| < 2.4.

Original language	English
Pages (from-to)	1709-1713
Number of pages	5
Journal	Indian Journal of Physics
Volume	84
Issue number	12
DOIs	https://doi.org/10.1007/s12648-010-0161-5
State	Published - Dec 2010

Keywords

Direct photon
Heavy ion collision

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abstract = "The ATLAS detector at the LHC is capable of efficiently separating photons and neutral hadrons based on their shower shapes over a wide range in η,φ, and ET , either in addition to or instead of isolation cuts. This provides ATLAS with a unique strength for direct photon and γ-jet physics ({"}tomography{"}) as well as access to the unique capability to measure non-isolated photons from fragmentation or from the medium. We present a first look at the ATLAS direct photon measurement capabilities in p+p and Pb+Pb collisions at LHC energies over the region |η| < 2.4.",

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author = "Baker, \{Mark D.\} and Jiangyong Jia and Peter Steinberg",

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AU - Steinberg, Peter

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AB - The ATLAS detector at the LHC is capable of efficiently separating photons and neutral hadrons based on their shower shapes over a wide range in η,φ, and ET , either in addition to or instead of isolation cuts. This provides ATLAS with a unique strength for direct photon and γ-jet physics ("tomography") as well as access to the unique capability to measure non-isolated photons from fragmentation or from the medium. We present a first look at the ATLAS direct photon measurement capabilities in p+p and Pb+Pb collisions at LHC energies over the region |η| < 2.4.

KW - Direct photon

KW - Heavy ion collision

UR - https://www.scopus.com/pages/publications/79953827114

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DO - 10.1007/s12648-010-0161-5

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ER -

Direct photons in ATLAS@LHC

Abstract

Keywords

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