Production of \(\pi^0\) and \(\eta\) mesons up to high transverse momentum in pp collisions at 2.76 TeV
dc.contributor.author | Acharya, Shreyasi | |
dc.contributor.author | Adamová, Dagmar | |
dc.contributor.author | Aggarwal, Madan M. | |
dc.contributor.author | Aglieri Rinella, Gianluca | |
dc.contributor.author | Agnello, Michelangelo | |
dc.contributor.author | Agrawal, Nikita | |
dc.contributor.author | Ahammed, Zubayer | |
dc.contributor.author | Ahmad, Shafiq F. | |
dc.contributor.author | Ahn, Sang Un | |
dc.contributor.author | Aiola, Salvatore | |
dc.contributor.author | Alme, Johan | |
dc.contributor.author | Altinpinar, Sedat | |
dc.contributor.author | Djuvsland, Øystein | |
dc.contributor.author | Lønne, Per-Ivar | |
dc.contributor.author | Nystrand, Joakim | |
dc.contributor.author | Rehman, Attiq ur | |
dc.contributor.author | Røhrich, Dieter | |
dc.contributor.author | Tambave, Ganesh Jagannath | |
dc.contributor.author | Ullaland, Kjetil | |
dc.contributor.author | Velure, Arild | |
dc.contributor.author | Wagner, Boris | |
dc.contributor.author | Zhang, Hui | |
dc.contributor.author | Zhou, Zhuo | |
dc.contributor.author | Zhu, Hongsheng | |
dc.contributor.author | Helstrup, Håvard | |
dc.contributor.author | Hetland, Kristin Fanebust | |
dc.contributor.author | Kileng, Bjarte | |
dc.contributor.author | Nesbø, Simon Voigt | |
dc.contributor.author | Arsene, Ionut Christian | |
dc.contributor.author | Bätzing, Paul Christoph | |
dc.contributor.author | Dordic, Olja | |
dc.contributor.author | Lardeux, Antoine Xavier | |
dc.contributor.author | Lindal, Svein | |
dc.contributor.author | Mahmood, Sohail Musa | |
dc.contributor.author | Milosevic, Jovan | |
dc.contributor.author | Qvigstad, Henrik | |
dc.contributor.author | Richter, Matthias | |
dc.contributor.author | Røed, Ketil | |
dc.contributor.author | Skaali, Toralf Bernhard | |
dc.contributor.author | Tveter, Trine Spedstad | |
dc.contributor.author | Wikne, Jon Christopher | |
dc.contributor.author | Zhao, Chengxin | |
dc.contributor.author | Langøy, Rune | |
dc.contributor.author | Lien, Jørgen André | |
dc.contributor.author | Akindinov, Alexander | |
dc.contributor.author | Alam, Sk Noor | |
dc.contributor.author | De Albuquerque, Danilo Silva | |
dc.contributor.author | Aleksandrov, Dimitry | |
dc.contributor.author | Alessandro, Bruno | |
dc.contributor.author | Alexandre, Didier | |
dc.contributor.author | ALICE, Collaboration | |
dc.date.accessioned | 2017-11-08T09:20:56Z | |
dc.date.available | 2017-11-08T09:20:56Z | |
dc.date.issued | 2017-05 | |
dc.Published | Acharya S, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad SF, Ahn SU, Aiola S, Alme J, Altinpinar S, Djuvsland Ø, Lønne P, Nystrand J, Rehman Au, Røhrich D, Tambave GJ, Ullaland K, Velure A, Wagner B, Zhang H, Zhou Z, Zhu H, Helstrup H, Hetland KF, Kileng B, Nesbø SV, Arsene IC, Bätzing P, Dordic O, Lardeux AX, Lindal S, Mahmood SM, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Akindinov A, Alam SN, De Albuquerque DS, Aleksandrov D, Alessandro B, Alexandre D, ALICE C. Production of π0 and η mesons up to high transverse momentum in pp collisions at √s=2.76 TeV. European Physical Journal C. 2017;77:339 | eng |
dc.identifier.issn | 1434-6044 | en_US |
dc.identifier.issn | 1434-6052 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/16904 | |
dc.description.abstract | The invariant differential cross sections for inclusive \(\pi^{0}\) and \(\eta\) mesons at midrapidity were measured in pp collisions at \(\sqrt{s}=2.76\) TeV for transverse momenta \(0.4<p_{\rm T}<40\) GeV/\(c\) and \(0.6<p_{\rm T}<20\) GeV/\(c\), respectively, using the ALICE detector. This large range in \(p_{\rm T}\) was achieved by combining various analysis techniques and different triggers involving the electromagnetic calorimeter (EMCal). In particular, a new single-cluster, shower-shape based method was developed for the identification of high-\(p_{\rm T}\) neutral pions, which exploits that the showers originating from their decay photons overlap in the EMCal. The measured cross sections are found to exhibit a similar power-law behavior with an exponent of about \(6.3\), Next-to-leading-order perturbative QCD calculations differ from the measured cross sections by about \(30\)% for the \(\pi^0\), and between \(30\)-\(50\)% for the \(\eta\) meson, while generator-level simulations with PYTHIA 8.2 describe the data to better than \(10\)-\(30\)%, except at \(p_{\rm T}<1\) GeV/\(c\), The new data can therefore be used to further improve the theoretical description of \(\pi^{0}\) and \(\eta\) meson production. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | eng |
dc.title | Production of \(\pi^0\) and \(\eta\) mesons up to high transverse momentum in pp collisions at 2.76 TeV | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2017-10-05T14:26:27Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright CERN for the benefit of the ALICE collaboration 2017 | en_US |
dc.identifier.doi | https://doi.org/10.1140/epjc/s10052-017-4890-x | |
dc.identifier.cristin | 1492444 | |
dc.source.journal | European Physical Journal C | |
dc.relation.project | Norges forskningsråd: 255188 | |
dc.subject.nsi | VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.subject.nsi | VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 |