di-photon versus di-hadron correlations in p+a collisions
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ID: 143510
2016
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Abstract
We study the di-photon correlations in quark-nucleus and proton-nucleus collisions at RHIC and the LHC.We show that the single fragmentation di-photon produces the away side correlations peak, and the double fragmentation component of prompt diphoton is responsible for the near-side peak, and the long-range in rapidity near-side azimuthal collimation, the so-called “ridge” structure. We show that while di-photon ridge exists at the LHC in quark-nucleus collisions, the effect disappears in proton-nucleus collisions at the LHC. We show that the di-photon correlation measurments in p+A collisions can help to discriminate among models and understand the true origin of the observed dihedron ridge in p+A collisions.
| Reference Key |
alex2016epjdi-photon
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|---|---|
| Authors | ;Kovner Alex;Rezaeian Amir H. |
| Journal | utilitas mathematica |
| Year | 2016 |
| DOI |
10.1051/epjconf/201611202012
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| URL | |
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