Measurements of photo-nuclear jet production in Pb + Pb collisions with ATLAS

A Angerami; Torsten Åkesson; Simona Bocchetta; Caterina Doglioni; Vincent Hedberg; Göran Jarlskog; Charles Kalderon; Else Lytken; Ulf Mjörnmark; Trine Poulsen; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1016/j.nuclphysa.2017.06.041

Measurements of photo-nuclear jet production in Pb + Pb collisions with ATLAS

A Angerami, Torsten Åkesson, Simona Bocchetta, Caterina Doglioni, Vincent Hedberg, Göran Jarlskog, Charles Kalderon, Else Lytken, Ulf Mjörnmark, Trine Poulsen, Oxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

Columbia University

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

Abstract

Ultra-peripheral heavy ion collisions provide a unique opportunity to study the parton distributions in the colliding nuclei via the measurement of photo-nuclear jet production. An analysis of jet production in ultra-peripheral Pb+Pb collisions at sNN=5.02 TeV performed using data collected with the ATLAS detector in 2015 is described. The data set corresponds to a total Pb+Pb integrated luminosity of 0.38 nb−1. The ultra-peripheral collisions are selected using a combination of forward neutron and rapidity gap requirements. The cross-sections, not unfolded for detector response, are compared to results from Pythia Monte Carlo simulations re-weighted to match a photon spectrum obtained from the STARlight model. Qualitative agreement between data and these simulations is observed over a broad kinematic range suggesting that using these collisions to measure nuclear parton distributions is experimentally realisable. © 2017 The Author(s)

Original language	English
Pages (from-to)	277-280
Journal	Nuclear Physics A
Volume	967
DOIs	https://doi.org/10.1016/j.nuclphysa.2017.06.041
Publication status	Published - 2017

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1016/j.nuclphysa.2017.06.041Licence: CC BY

Cite this

@article{c503d074b7c4416391b0a7a5e1cd5282,

title = "Measurements of photo-nuclear jet production in Pb + Pb collisions with ATLAS",

abstract = "Ultra-peripheral heavy ion collisions provide a unique opportunity to study the parton distributions in the colliding nuclei via the measurement of photo-nuclear jet production. An analysis of jet production in ultra-peripheral Pb+Pb collisions at sNN=5.02 TeV performed using data collected with the ATLAS detector in 2015 is described. The data set corresponds to a total Pb+Pb integrated luminosity of 0.38 nb−1. The ultra-peripheral collisions are selected using a combination of forward neutron and rapidity gap requirements. The cross-sections, not unfolded for detector response, are compared to results from Pythia Monte Carlo simulations re-weighted to match a photon spectrum obtained from the STARlight model. Qualitative agreement between data and these simulations is observed over a broad kinematic range suggesting that using these collisions to measure nuclear parton distributions is experimentally realisable. {\textcopyright} 2017 The Author(s)",

author = "A Angerami and Torsten {\AA}kesson and Simona Bocchetta and Caterina Doglioni and Vincent Hedberg and G{\"o}ran Jarlskog and Charles Kalderon and Else Lytken and Ulf Mj{\"o}rnmark and Trine Poulsen and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",

year = "2017",

doi = "10.1016/j.nuclphysa.2017.06.041",

language = "English",

volume = "967",

pages = "277--280",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

}

TY - JOUR

T1 - Measurements of photo-nuclear jet production in Pb + Pb collisions with ATLAS

AU - Angerami, A

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - Doglioni, Caterina

AU - Hedberg, Vincent

AU - Jarlskog, Göran

AU - Kalderon, Charles

AU - Lytken, Else

AU - Mjörnmark, Ulf

AU - Poulsen, Trine

AU - Smirnova, Oxana

AU - Viazlo, Oleksandr

AU - ATLAS Collaboration

PY - 2017

Y1 - 2017

N2 - Ultra-peripheral heavy ion collisions provide a unique opportunity to study the parton distributions in the colliding nuclei via the measurement of photo-nuclear jet production. An analysis of jet production in ultra-peripheral Pb+Pb collisions at sNN=5.02 TeV performed using data collected with the ATLAS detector in 2015 is described. The data set corresponds to a total Pb+Pb integrated luminosity of 0.38 nb−1. The ultra-peripheral collisions are selected using a combination of forward neutron and rapidity gap requirements. The cross-sections, not unfolded for detector response, are compared to results from Pythia Monte Carlo simulations re-weighted to match a photon spectrum obtained from the STARlight model. Qualitative agreement between data and these simulations is observed over a broad kinematic range suggesting that using these collisions to measure nuclear parton distributions is experimentally realisable. © 2017 The Author(s)

AB - Ultra-peripheral heavy ion collisions provide a unique opportunity to study the parton distributions in the colliding nuclei via the measurement of photo-nuclear jet production. An analysis of jet production in ultra-peripheral Pb+Pb collisions at sNN=5.02 TeV performed using data collected with the ATLAS detector in 2015 is described. The data set corresponds to a total Pb+Pb integrated luminosity of 0.38 nb−1. The ultra-peripheral collisions are selected using a combination of forward neutron and rapidity gap requirements. The cross-sections, not unfolded for detector response, are compared to results from Pythia Monte Carlo simulations re-weighted to match a photon spectrum obtained from the STARlight model. Qualitative agreement between data and these simulations is observed over a broad kinematic range suggesting that using these collisions to measure nuclear parton distributions is experimentally realisable. © 2017 The Author(s)

U2 - 10.1016/j.nuclphysa.2017.06.041

DO - 10.1016/j.nuclphysa.2017.06.041

M3 - Article

SN - 0375-9474

VL - 967

SP - 277

EP - 280

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

Measurements of photo-nuclear jet production in Pb + Pb collisions with ATLAS

Abstract

Subject classification (UKÄ)

Access to Document

Fingerprint

Cite this