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

A. Angerami; M. Aaboud; G. Aad; B. Abbott; J. Abdallah; O. Abdinov; B Abeloos; S.H. Abidi; O.S. AbouZeid; NL Abraham; H. Abramowicz; H. Abreu; R. Abreu; Y. Abulaiti; B.S. Acharya; Shin-ichi Adachi; L. Adamczyk; J P Adelman; M. Adersberger; T. Adye; Mogens Dam; Jørn Dines Hansen; Jørgen Beck Hansen; Peter Henrik Hansen; Troels Christian Petersen; Ask Emil Løvschall-Jensen; Alejandro Alonso Diaz; James William Monk; Lars Egholm Pedersen; Graig Wiglesworth; Gorm Aske Gram Krohn Galster; Simon Holm Stark; Geert-Jan Besjes; Stefania Xella; Flavia de Almeida Dias; Milena Bajic; Fabian Alexander Jürgen Thiele

doi:10.1016/j.nuclphysa.2017.06.041

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

A. Angerami, M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B Abeloos, S.H. Abidi, O.S. AbouZeid, NL Abraham, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B.S. Acharya, Shin-ichi Adachi, L. Adamczyk, J P Adelman, M. Adersberger, T. AdyeMogens Dam, Jørn Dines Hansen, Jørgen Beck Hansen, Peter Henrik Hansen, Troels Christian Petersen, Ask Emil Løvschall-Jensen, Alejandro Alonso Diaz, James William Monk, Lars Egholm Pedersen, Graig Wiglesworth, Gorm Aske Gram Krohn Galster, Simon Holm Stark, Geert-Jan Besjes, Stefania Xella, Flavia de Almeida Dias, Milena Bajic, Fabian Alexander Jürgen Thiele

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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 s_NN=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.

Originalsprog	Engelsk
Tidsskrift	Nuclear Physics A
Vol/bind	967
Sider (fra-til)	227-280
ISSN	0375-9474
DOI	https://doi.org/10.1016/j.nuclphysa.2017.06.041
Status	Udgivet - 1 nov. 2017

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10.1016/j.nuclphysa.2017.06.041Licens: CC BY

1-s2.0-S0375947417303020-mainForlagets udgivne version, 174 KBLicens: CC BY

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Angerami, A., Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Abidi, S. H., AbouZeid, O. S., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J. P., Adersberger, M., ... Thiele, F. A. J. (2017). Measurements of photo-nuclear jet production in Pb plus Pb collisions with ATLAS. Nuclear Physics A, 967, 227-280. https://doi.org/10.1016/j.nuclphysa.2017.06.041

Angerami, A, Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adachi, S, Adamczyk, L, Adelman, JP, Adersberger, M, Adye, T, Dam, M , Hansen, JD , Hansen, JB , Hansen, PH , Petersen, TC, Løvschall-Jensen, AE, Alonso Diaz, A, Monk, JW, Pedersen, LE, Wiglesworth, G, Galster, GAGK, Stark, SH, Besjes, G-J, Xella, S, de Almeida Dias, F, Bajic, M & Thiele, FAJ 2017, 'Measurements of photo-nuclear jet production in Pb plus Pb collisions with ATLAS', Nuclear Physics A, bind 967, s. 227-280. https://doi.org/10.1016/j.nuclphysa.2017.06.041

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title = "Measurements of photo-nuclear jet production in Pb plus 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.",

author = "A. Angerami and M. Aaboud and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B Abeloos and S.H. Abidi and O.S. AbouZeid and NL Abraham and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and B.S. Acharya and Shin-ichi Adachi and L. Adamczyk and Adelman, {J P} and M. Adersberger and T. Adye and Mogens Dam and Hansen, {J{\o}rn Dines} and Hansen, {J{\o}rgen Beck} and Hansen, {Peter Henrik} and Petersen, {Troels Christian} and L{\o}vschall-Jensen, {Ask Emil} and {Alonso Diaz}, Alejandro and Monk, {James William} and Pedersen, {Lars Egholm} and Graig Wiglesworth and Galster, {Gorm Aske Gram Krohn} and Stark, {Simon Holm} and Geert-Jan Besjes and Stefania Xella and {de Almeida Dias}, Flavia and Milena Bajic and Thiele, {Fabian Alexander J{\"u}rgen}",

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month = nov,

day = "1",

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

language = "English",

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TY - JOUR

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

AU - Angerami, A.

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Abeloos, B

AU - Abidi, S.H.

AU - AbouZeid, O.S.

AU - Abraham, NL

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B.S.

AU - Adachi, Shin-ichi

AU - Adamczyk, L.

AU - Adelman, J P

AU - Adersberger, M.

AU - Adye, T.

AU - Dam, Mogens

AU - Hansen, Jørn Dines

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Petersen, Troels Christian

AU - Løvschall-Jensen, Ask Emil

AU - Alonso Diaz, Alejandro

AU - Monk, James William

AU - Pedersen, Lars Egholm

AU - Wiglesworth, Graig

AU - Galster, Gorm Aske Gram Krohn

AU - Stark, Simon Holm

AU - Besjes, Geert-Jan

AU - Xella, Stefania

AU - de Almeida Dias, Flavia

AU - Bajic, Milena

AU - Thiele, Fabian Alexander Jürgen

PY - 2017/11/1

Y1 - 2017/11/1

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.

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.

U2 - 10.1016/j.nuclphysa.2017.06.041

DO - 10.1016/j.nuclphysa.2017.06.041

M3 - Journal article

SN - 0375-9474

VL - 967

SP - 227

EP - 280

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

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

Abstract

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