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Online data compression in the ALICE O$^2$ facility
Richter, Matthias Rudolph, Aamodt, Kenneth, Arsene, Ionut Christian, Bravina, Larissa, Dordic, Olja, Eyyubova, Gyulnara, Hille, Per Thomas, Kolevatov, Rodion, Kværnø, Henning, Lindal, Svein, Løvhøiden, Gunnar, Milosevic, Jovan, Nilsson, Mads Stormo, Nyiri, Agnes, Skaali, Toralf Bernhard, Tveter, Trine Spedstad
Richter M, Aamodt K, Arsene IC, Bravina L, Dordic O, Eyyubova G, Hille PT, Kolevatov R, Kværnø H, Lindal S, Løvhøiden G, Milosevic J, Nilsson MS, Nyiri A, Skaali TB, Tveter TS, Tywoniuk K, Wikne JC, Zabrodin E, Alme J, Bablok SR, Djuvsland Ø, Fehlker D, Haaland ØS, Huang M, Kanaki K, Klovning A, Larsen DT, Liu L, Nystrand J, Øvrebekk G, Pommeresche B, Skjerdal K, Ullaland K, Wagner B, Helstrup H, Hetland KF, Kileng B, Røed K, Pocheptsov TA, Altinpinar S, Røhrich D, Adamová D, Aggarwal MM, Aglieri Rinella G, Ahammed Z, Ahn SU, Akindinov A, Aleksandrov D, Alessandro B, ALICE C. Online data compression in the ALICE O2 facility. Journal of Physics, Conference Series. 2017;898:032049
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Title: Online data compression in the ALICE O$^2$ facility
Author: Richter, Matthias Rudolph; Aamodt, Kenneth; Arsene, Ionut Christian; Bravina, Larissa; Dordic, Olja; Eyyubova, Gyulnara; Hille, Per Thomas; Kolevatov, Rodion; Kværnø, Henning; Lindal, Svein; Løvhøiden, Gunnar; Milosevic, Jovan; Nilsson, Mads Stormo; Nyiri, Agnes; Skaali, Toralf Bernhard; Tveter, Trine Spedstad
Date: 2017
Subject: Vdp::Matematikk Og Naturvitenskap: 400::Fysikk: 430::Kjerne- Og Elementærpartikkelfysikk: 431 ; Vdp::Mathematics And Natural Scienses: 400::Physics: 430::Nuclear And Elementary Particle Physics: 431
Description: The ALICE Collaboration and the ALICE O2 project have carried out detailed studies for a new online computing facility planned to be deployed for Run 3 of the Large Hadron Collider (LHC) at CERN. Some of the main aspects of the data handling concept are partial reconstruction of raw data organized in so called time frames, and based on that information reduction of the data rate without significant loss in the physics information. A production solution for data compression has been in operation for the ALICE Time Projection Chamber (TPC) in the ALICE High Level Trigger online system since 2011. The solution is based on reconstruction of space points from raw data. These so called clusters are the input for reconstruction of particle trajectories. Clusters are stored instead of raw data after a transformation of required parameters into an optimized format and subsequent lossless data compression techniques. With this approach, a reduction of 4.4 has been achieved on average. For Run 3,...
Is part of: Richter M, Aamodt K, Arsene IC, Bravina L, Dordic O, Eyyubova G, Hille PT, Kolevatov R, Kværnø H, Lindal S, Løvhøiden G, Milosevic J, Nilsson MS, Nyiri A, Skaali TB, Tveter TS, Tywoniuk K, Wikne JC, Zabrodin E, Alme J, Bablok SR, Djuvsland Ø, Fehlker D, Haaland ØS, Huang M, Kanaki K, Klovning A, Larsen DT, Liu L, Nystrand J, Øvrebekk G, Pommeresche B, Skjerdal K, Ullaland K, Wagner B, Helstrup H, Hetland KF, Kileng B, Røed K, Pocheptsov TA, Altinpinar S, Røhrich D, Adamová D, Aggarwal MM, Aglieri Rinella G, Ahammed Z, Ahn SU, Akindinov A, Aleksandrov D, Alessandro B, ALICE C. Online data compression in the ALICE O2 facility. Journal of Physics, Conference Series. 2017;898:032049

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Online data compression in the ALICE O2 facility
Richter, Matthias Rudolph, Aamodt, Kenneth, Arsene, Ionut Christian, Bravina, Larissa, Dordic, Olja, Eyyubova, Gyulnara, Hille, Per Thomas, Kolevatov, Rodion, Kværnø, Henning, Lindal, Svein, Løvhøiden, Gunnar, Milosevic, Jovan, Nilsson, Mads Stormo, Nyiri, Agnes, Skaali, Toralf Bernhard, Tveter, Trine Spedstad
Journal of physics. Conference series, 2017 [Peer Reviewed Journal]

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W and Z boson production in p-Pb collisions at √sNN = 5.02 TeV
Adam, Jaroslav, Adamová, Dagmar, Aggarwal, Madan M., Aglieri Rinella, G, Agnello, Michelangelo, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, N, Ahn, Su, Alme, Johan, Altinpinar, Sedat, Arsene, Ionut Christian, Bätzing, Paul Christoph, Dordic, Olja, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Lønne, Per - Ivar, Mahmood, Sohail Musa, Milosevic, Jovan, Nystrand, Joakim, Qvigstad, Henrik, Rehman, Attiq Ur, Richter, Matthias Rudolph, Røed, Ketil, Røhrich, Dieter, Tveter, Trine Spedstad, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Wikne, Jon Christopher, Zhang, Hui, Zhao, Chengxin, Zhou, Zhuo, Zhu, Hongsheng, Langøy, Rune, Lien, Jørgen André, Aiola, Salvatore, Akindinov, Alexander, Alam, Sk Noor, De Albuquerque, Danilo Silva, Aleksandrov, Dimitry, Allesandro, B., Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alice, Collaboration
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Title: W and Z boson production in p-Pb collisions at √sNN = 5.02 TeV
Author: Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, Su; Alme, Johan; Altinpinar, Sedat; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Lønne, Per - Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nystrand, Joakim; Qvigstad, Henrik; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Langøy, Rune; Lien, Jørgen André; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Allesandro, B.; Alexandre, D; Alfaro Molina, R; Alici, A; Alkin, A; Alice, Collaboration
Date: 2017
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Determination of the event collision time with the ALICE detector at the LHC
Adam, Jaroslav, Adamová, Dagmar, Aggarwal, Madan M., Aglieri Rinella, G, Agnello, Michelangelo, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, N, Ahn, Su, Alme, Johan, Altinpinar, Sedat, Arsene, Ionut Christian, Bätzing, Paul Christoph, Dordic, Olja, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Lønne, Per - Ivar, Mahmood, Sohail Musa, Milosevic, Jovan, Nystrand, Joakim, Qvigstad, Henrik, Rehman, Attiq Ur, Richter, Matthias Rudolph, Tveter, Trine Spedstad, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Wikne, Jon Christopher, Zhang, Hui, Zhao, Chengxin, Zhou, Zhuo, Zhu, Hongsheng, Langøy, Rune, Lien, Jørgen André, Aiola, Salvatore, Akindinov, Alexander, Alam, Sk Noor, De Albuquerque, Danilo Silva, Aleksandrov, Dimitry, Allesandro, B., Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alice, Collaboration
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Title: Determination of the event collision time with the ALICE detector at the LHC
Author: Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, Su; Alme, Johan; Altinpinar, Sedat; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Lønne, Per - Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nystrand, Joakim; Qvigstad, Henrik; Rehman, Attiq Ur; Richter, Matthias Rudolph; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Langøy, Rune; Lien, Jørgen André; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Allesandro, B.; Alexandre, D; Alfaro Molina, R; Alici, A; Alkin, A; Alice, Collaboration
Date: 2017
Description: publishedVersion

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Suppression of ϒ{hooked}(1S) at forward rapidity in Pb-Pb collisions at sNN=2.76 TeV
Abelev, Betty, Adam, Jaroslav, Adamová, Dagmar, Aggarwal, Madan M., Agnello, Michelangelo, Agostinelli, Andrea, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, Nazeer, Ahn, Sang Un, Alme, Johan, Erdal, Hege Austrheim, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Lønne, Per - Ivar, Nystrand, Joakim, Rehman, Attiq Ur, Røhrich, Dieter, Skjerdal, Kyrre, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Yang, Shiming, Zhou, Zhuo, Arsene, Ionut Christian, Bätzing, Paul Christoph, Dordic, Olja, Lindal, Svein, Mahmood, Sohail Musa, Milosevic, Jovan, Qvigstad, Henrik, Richter, Matthias Rudolph, Røed, Ketil, Skaali, Toralf Bernhard, Tveter, Trine Spedstad, Wikne, Jon Christopher, Zhao, Chengxin, Langøy, Rune, Lien, Jørgen André, Ahn, Sul - Ah, Aiola, Salvatore, Ajaz, Muhammad, Akindinov, Alexander, Alice, Collaboration
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Title: Suppression of ϒ{hooked}(1S) at forward rapidity in Pb-Pb collisions at sNN=2.76 TeV
Author: Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Agnello, Michelangelo; Agostinelli, Andrea; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Nazeer; Ahn, Sang Un; Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per - Ivar; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahn, Sul - Ah; Aiola, Salvatore; Ajaz, Muhammad; Akindinov, Alexander; Alice, Collaboration
Date: 2014
Subject: Vdp::Matematikk Og Naturvitenskap: 400::Fysikk: 430::Kjerne- Og Elementærpartikkelfysikk: 431 ; Vdp::Mathematics And Natural Scienses: 400::Physics: 430::Nuclear And Elementary Particle Physics: 431
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Measurement of J/ψ production as a function of event multiplicity in pp collisions at s=13 TeV with ALICE
Acharya, Shreyasi, Adam, Jaroslav, Adamová, Dagmar, Adolfsson, Jonatan, Aggarwal, Madan M., Aglieri Rinella, G, Agnello, Michelangelo, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, N, Ahn, Su, Alme, Johan, Altenkaemper, Lucas, Arsene, Ionut Christian, Bätzing, Paul Christoph, Djuvsland, Øystein, Dordic, Olja, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Langøy, Rune, Lardeux, Antoine Xavier, Lien, Jørgen André, Lindal, Svein, Lønne, Per - Ivar, Mahmood, Sohail Musa, Milosevic, Jovan, Nesbø, Simon Voigt, Nystrand, Joakim, Rehman, Attiq Ur, Richter, Matthias Rudolph, Røed, Ketil, Røhrich, Dieter, Skaali, Toralf Bernhard, Tambave, Ganesh Jagannath, Tveter, Trine Spedstad, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Wikne, Jon Christopher, Zhang, Hui, Zhao, Chengxin, Zhou, Zhuo, Zhu, Hongsheng, Aiola, Salvatore, Akindinov, Alexander, Alam, Sk Noor, Alba, José Luis Bazo, Aleksandrov, Dimitry, Allesandro, B., De Albuquerque, Danilo Silva
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Title: Measurement of J/ψ production as a function of event multiplicity in pp collisions at s=13 TeV with ALICE
Author: Acharya, Shreyasi; Adam, Jaroslav; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, Su; Alme, Johan; Altenkaemper, Lucas; Arsene, Ionut Christian; Bätzing, Paul Christoph; Djuvsland, Øystein; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lardeux, Antoine Xavier; Lien, Jørgen André; Lindal, Svein; Lønne, Per - Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nesbø, Simon Voigt; Nystrand, Joakim; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Skaali, Toralf Bernhard; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; Alba, José Luis Bazo; Aleksandrov, Dimitry; Allesandro, B.; De Albuquerque, Danilo Silva
Date: 2017
Description: publishedVersion

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Measurements of the nuclear modification factor and elliptic flow of leptons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 and 5.02 TeV with ALICE
Acharya, Shreyasi, Adam, Jaroslav, Adamová, Dagmar, Adolfsson, Jonatan, Aggarwal, Madan M., Aglieri Rinella, G, Agnello, Michelangelo, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, N, Ahn, Su, Alme, Johan, Altenkaemper, Lucas, Arsene, Ionut Christian, Bätzing, Paul Christoph, Djuvsland, Øystein, Dordic, Olja, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Langøy, Rune, Lardeux, Antoine Xavier, Lien, Jørgen André, Lindal, Svein, Lønne, Per - Ivar, Mahmood, Sohail Musa, Milosevic, Jovan, Nesbø, Simon Voigt, Nystrand, Joakim, Rehman, Attiq Ur, Richter, Matthias Rudolph, Røed, Ketil, Røhrich, Dieter, Skaali, Toralf Bernhard, Tambave, Ganesh Jagannath, Tveter, Trine Spedstad, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Wikne, Jon Christopher, Zhang, Hui, Zhao, Chengxin, Zhou, Zhuo, Zhu, Hongsheng, Aiola, Salvatore, Akindinov, Alexander, Alam, Sk Noor, Alba, José Luis Bazo, Aleksandrov, Dimitry, Allesandro, B., Alice, Collaboration
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Title: Measurements of the nuclear modification factor and elliptic flow of leptons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 and 5.02 TeV with ALICE
Author: Acharya, Shreyasi; Adam, Jaroslav; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, Su; Alme, Johan; Altenkaemper, Lucas; Arsene, Ionut Christian; Bätzing, Paul Christoph; Djuvsland, Øystein; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lardeux, Antoine Xavier; Lien, Jørgen André; Lindal, Svein; Lønne, Per - Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nesbø, Simon Voigt; Nystrand, Joakim; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Skaali, Toralf Bernhard; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; Alba, José Luis Bazo; Aleksandrov, Dimitry; Allesandro, B.; Alice, Collaboration
Date: 2017
Description: publishedVersion

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Two- and three-pion quantum statistics correlations in Pb-Pb collisions at s N N = 2.76 TeV at the CERN Large Hadron Collider
Alme, Johan, Erdal, Hege Austrheim, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Langøy, Rune, Lien, Jørgen, Øvrebekk, Gaute, Lønne, Per - Ivar, Nystrand, Joakim, Rehman, Attiq Ur, Røhrich, Dieter, Skjerdal, Kyrre, Ullaland, Kjetil, Wagner, Boris, Yang, Shiming, Arsene, Ionut Christian, Bätzing, Paul Christoph, Dordic, Olja, Eyyubova, Gyulnara, Lindal, Svein, Milosevic, Jovan, Qvigstad, Henrik, Richter, Matthias Rudolph, Røed, Ketil, Skaali, Toralf Bernhard, Tveter, Trine Spedstad, Wikne, Jon Christopher, Zhao, Chengxin, Abelev, Betty, Adam, Jaroslav, Adamová, Dagmar, Adare, Andrew Marshall, Aggarwal, Madan M., Aglieri Rinella, Gianluca, Agocs, Andreas Gabor, Agostinelli, Andrea, Aguilar Salazar, Saul, Ahammed, Zubayer, Ahmad, Nazeer, Ahmad Masoodi, Arshar, Ahn, Sang Un, Ahn, Sul - Ah, Ajaz, Muhammad, Alice, Collaboration
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Title: Two- and three-pion quantum statistics correlations in Pb-Pb collisions at s N N = 2.76 TeV at the CERN Large Hadron Collider
Author: Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Langøy, Rune; Lien, Jørgen; Øvrebekk, Gaute; Lønne, Per - Ivar; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Eyyubova, Gyulnara; Lindal, Svein; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Adare, Andrew Marshall; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agocs, Andreas Gabor; Agostinelli, Andrea; Aguilar Salazar, Saul; Ahammed, Zubayer; Ahmad, Nazeer; Ahmad Masoodi, Arshar; Ahn, Sang Un; Ahn, Sul - Ah; Ajaz, Muhammad; Alice, Collaboration
Date: 2014
Subject: Vdp::Matematikk Og Naturvitenskap: 400::Fysikk: 430::Kjerne- Og Elementærpartikkelfysikk: 431 ; Vdp::Mathematics And Natural Scienses: 400::Physics: 430::Nuclear And Elementary Particle Physics: 431
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π0 and η meson production in proton-proton collisions at √s=8 TeV
Acharya, Shreyasi, Adam, Jaroslav, Adamová, Dagmar, Adolfsson, Jonatan, Aggarwal, Madan M., Aglieri Rinella, Gianluca, Agnello, Michelangelo, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, Shafiq F., Alme, Johan, Altenkaemper, Lucas, Djuvsland, Øystein, Fionda, Fiorella Maria Celeste, Lønne, Per - Ivar, Nystrand, Joakim, Rehman, Attiq Ur, Røhrich, Dieter, Tambave, Ganesh Jagannath, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Zhang, Hui, Zhou, Zhuo, Zhu, Hongsheng, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Nesbø, Simon Voigt, Storetvedt, Maksim Melnik, Arsene, Ionut Christian, Bätzing, Paul Christoph, Dordic, Olja, Lardeux, Antoine Xavier, Lindal, Svein, Mahmood, Sohail Musa, Milosevic, Jovan, Richter, Matthias Rudolph, Røed, Ketil, Skaali, Toralf Bernhard, Tveter, Trine Spedstad, Wikne, Jon Christopher, Zhao, Chengxin, Langøy, Rune, Lien, Jørgen André, Ahn, Sang Un, Aiola, Salvatore, Akindinov, Alexander, Al - Turany, Mohammed, Alam, Sk Noor, Alice, Collaboration
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Title: π0 and η meson production in proton-proton collisions at √s=8 TeV
Author: Acharya, Shreyasi; Adam, Jaroslav; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Fionda, Fiorella Maria Celeste; Lønne, Per - Ivar; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al - Turany, Mohammed; Alam, Sk Noor; Alice, Collaboration
Date: 2018
Subject: Vdp::Kjerne- Og Elementærpartikkelfysikk: 431 ; Vdp::Nuclear And Elementary Particle Physics: 431
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Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV ; Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV
Acharya, Shreyasi, Adamová, Dagmar, Adolfsson, Jonatan, Aggarwal, Madan M., Aglieri Rinella, Gianluca, Agnello, Michelangelo, Agrawal, Nikita, Ahammed, Zubayer, Ahmad, Shafiq F., Ahn, Sang Un, Alme, Johan, Altenkaemper, Lucas, Djuvsland, Øystein, Fionda, Fiorella Maria Celeste, Lønne, Per - Ivar, Nystrand, Joakim, Rehman, Attiq Ur, Røhrich, Dieter, Tambave, Ganesh Jagannath, Ullaland, Kjetil, Velure, Arild, Wagner, Boris, Zhang, Hui, Zhou, Zhuo, Zhu, Hongsheng, Arsene, Ionut Christian, Bätzing, Paul Christoph, Dordic, Olja, Lardeux, Antoine Xavier, Lindal, Svein, Mahmood, Sohail Musa, Richter, Matthias Rudolph, Røed, Ketil, Skaali, Toralf Bernhard, Tveter, Trine Spedstad, Wikne, Jon Christopher, Zhao, Chengxin, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Nesbø, Simon Voigt, Storetvedt, Maksim Melnik, Langøy, Rune, Lien, Jørgen, Aiola, Salvatore, Akindinov, Alexander, Al - Turany, Mohammed, De Albuquerque, Danilo Silva, Aleksandrov, Dimitry, Alessandro, Bruno, Alfaro Molina, José Rubén, Alice, Collaboration
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Title: Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV ; Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV
Author: Acharya, Shreyasi; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Ahn, Sang Un; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Fionda, Fiorella Maria Celeste; Lønne, Per - Ivar; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen; Aiola, Salvatore; Akindinov, Alexander; Al - Turany, Mohammed; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Alessandro, Bruno; Alfaro Molina, José Rubén; Alice, Collaboration
Date: 2018
Subject: Vdp::Kjerne- Og Elementærpartikkelfysikk: 431 ; Vdp::Nuclear And Elementary Particle Physics: 431
Description: Neutral pion and η meson invariant differential yields were measured in non-single diffractive p–Pb collisions at √sNN = 5.02 TeV with the ALICE experiment at the CERN LHC. The analysis combines results from three complementary photon measurements, utilizing the PHOS and EMCal calorimeters and the Photon Conversion Method. The invariant differential yields of π0 and η meson inclusive production are measured near mid-rapidity in a broad transverse momentum range of 0.3 4 GeV/c at 0.483 ± 0.015 stat ± 0.015 sys. A deviation from mT scaling is observed for pT < 2 GeV/c. The measured η / π 0 ratio is consistent with previous measurements from proton-nucleus and pp collisions over the full pT range. The measured η/π0 ratio at high pT also agrees within uncertainties with measurements from nucleus–nucleus collisions. The π0 and η yields in p – Pb relative to the scaled pp interpolated reference, RpPb, are presented for 0.3 < pT < 20 GeV/c and 0.7 < pT < 20 GeV/c, respectively. The results are compared with theoretical model calculations. The values of Rp Pb are consistent with unity for transverse momenta above 2 GeV/c. These results support the interpretation that the suppressed yield of neutral mesons measured in Pb–Pb collisions at LHC energies is due to parton energy loss in the hot QCD medium.
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