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Measurements of photo-nuclear jet production in Pb plus Pb collisions with ATLAS
KTH, Skolan för teknikvetenskap (SCI), Fysik.ORCID-id: 0000-0001-6945-1916
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0003-3867-0336
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0002-5935-7464
Vise andre og tillknytning
Rekke forfattare: 28492017 (engelsk)Inngår i: Nuclear Physics A, ISSN 0375-9474, E-ISSN 1873-1554, Vol. 967, s. 277-280Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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 root 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.

sted, utgiver, år, opplag, sider
ELSEVIER SCIENCE BV , 2017. Vol. 967, s. 277-280
Emneord [en]
UPC, photoproduction, jets, nuclear parton distributions
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-219863DOI: 10.1016/j.nuclphysa.2017.06.041ISI: 000413384100037Scopus ID: 2-s2.0-85032224874OAI: oai:DiVA.org:kth-219863DiVA, id: diva2:1165692
Konferanse
26th International Conference on Ultrarelativistic Nucleus-Nucleus Collissions (Quark Matter), FEB 05-11, 2017, Chicago, IL
Merknad

QC 20171213

Tilgjengelig fra: 2017-12-13 Laget: 2017-12-13 Sist oppdatert: 2019-12-19bibliografisk kontrollert

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Kastanas, Konstatinos A.Lund-Jensen, BengtRipellino, GiuliaSidebo, P. EdvinStrandberg, Jonas
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