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ALICE Conference Contributions

Ostatnio dodane:
2020-02-15
06:48
Calibration of the ALICE PHOS calorimeter / Blau, Dmitry (Kurchatov Inst., Moscow) /ALICE
The procedure for the energy calibration of the high granularity electromagnetic calorimeter PHOS of the ALICE experiment is presented. The methods used to perform the relative gain calibration, to estimate the geometrical alignment and the corresponding correction of the absolute energy scale, to evaluate the non-linearity correction coefficients and finally, to calculate the time-dependent calibration corrections, are discussed and illustrated by the PHOS performance in proton-proton (pp) collisions at . [...]
2019 - 6 p. - Published in : J. Phys. : Conf. Ser. 1390 (2019) 012113 Fulltext: PDF;
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012113

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2020-02-15
06:48
Coherent J/ψ photoproduction in ultra-peripheral Pb–Pb collisions with ALICE at the LHC / Lavicka, Roman (Prague, Tech. U.) /ALICE
There are several predictions for the behaviour of the gluon distribution in nuclei at small Bjorken-x and experimental data are needed to choose among them. This is achieved by measuring the cross section of processes specially sensitive to this parton distribution. [...]
2019 - 4 p. - Published in : J. Phys. : Conf. Ser. 1390 (2019) 012024 Fulltext: PDF;
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012024

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2020-02-15
06:48
Hadronic shower properties in highly granular calorimeters with different absorbers / Chadeeva, Marina (Lebedev Inst.) /CALICE
The CALICE collaboration develops and tests highly granular calorimeter prototypes for future collider experiments. The scintillator-SiPM-based prototypes of hadron calorimeters with steel and tungsten absorbers were exposed to test beams from the CERN SPS in 2007-2011. [...]
2019 - 6 p. - Published in : J. Phys. : Conf. Ser. 1390 (2019) 012102 Fulltext: PDF;
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012102

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2020-02-15
06:48
Overview of ALICE results on light flavour hadron production / Riabov, V G (St. Petersburg, INP ; Moscow Phys. Eng. Inst.) /ALICE
Light flavour hadrons are copiously produced in hadronic and heavy-ion interactions and bring a wealth of information about properties of the produced medium and reaction dynamics. Having different masses, quark content and lifetimes, light flavour hadrons do not only serve as general observables in the soft sector, but also play an important role as high transverse momentum probes and signatures of the onset of collectivity in high-multiplicity collisions of small and large systems. [...]
2019 - 6 p. - Published in : J. Phys. : Conf. Ser. 1390 (2019) 012026 Fulltext: PDF;
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012026

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2020-02-15
06:48
Exploring hot QCD matter via direct photons at ALICE / Peresunko, D (Kurchatov Inst., Moscow) /ALICE
We review ALICE results on direct photon production in pp, pA and AA collisions and compare them to predictions of NLO pQCD calculations, hydrodynamic, and transport models. In pp and pA collisions the measured direct photon yield is consistent with NLO pQCD calculations, scaled with the number of binary collisions. [...]
2019 - 6 p. - Published in : J. Phys. : Conf. Ser. 1390 (2019) 012018 Fulltext: PDF;
In : The 4th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 22 - 26 Oct 2018, pp.012018

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2020-02-15
06:48
Overview of ALICE results on ultra-peripheral collisions / Kryshen, Evgeny (St. Petersburg, INP) /ALICE
Lead nuclei, accelerated at the LHC, are sources of strong electromagnetic fields which can be used to measure photon-induced interactions in a new kinematic regime. These interactions can be studied in ultra-peripheral p–Pb and Pb–Pb collisions where impact parameters are larger than the sum of nuclear radii and hadronic interactions are strongly suppressed. [...]
2019 - 9 p. - Published in : EPJ Web Conf. 204 (2019) 01011 Fulltext: PDF;
In : 24th International Baldin Seminar on High Energy Physics Problems : Relativistic Nuclear Physics and Quantum Chromodynamics, Dubna, Russia, 17 - 22 Sep 2018, pp.01011

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2020-02-05
04:22
Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE / Reidt, Felix
The ALICE experiment at CERN is undergoing a major upgrade during the Long Shutdown 2 (LS2) of the LHC during 2019-2020. [...]
arXiv:2002.00402.
- 4 p.
Fulltext

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2020-02-04
08:14
Recent results on hard probes in heavy-ion collisions from ALICE and LHCb / Hosokawa, Ritsuya (Tsukuba U. ; LPSC, Grenoble) /ALICE ; LHCb
The heavy-ion physics program at the ALICE and LHCb collaborations aims at studying the Cold Nuclear Matter (CNM) effects and revealing the properties of Quark-Gluon Plasma (QGP) which is hot and dense QCD matter consisting of deconfined quarks and gluons produced under extremely high energy density. Hard probes, originate from the initial hard scatterings with large momentum transfer, are excellent tools to study heavy-ion collisions. [...]
SISSA, 2019 - 7 p. - Published in : PoS LHCP2019 (2019) 221 Fulltext: PDF;
In : 7th Edition of the Large Hadron Collider Physics Conference, Puebla, Mexico, 20 May 2019, pp.221

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2020-02-02
05:11
Heavy-flavour jet production and charm fragmentation with ALICE at LHC / Mohanty, Auro (Utrecht U.)
Heavy quarks, produced in hard parton scatterings in the early stage of ultra-relativistic heavy-ion collisions, are ideal probes to investigate the properties of the Quark--Gluon Plasma (QGP) produced in such collisions. [...]
arXiv:2001.11339.
- 4 p.
Fulltext

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2020-01-29
06:59
Recent ALICE results on ultra-peripheral collisions / Horak, David (Prague, Tech. U.) /ALICE
The LHC is not only the most powerful collider for proton-proton and heavy-ion collisions, but it is also the most powerful source of photon collisions, because the protons and ions in the accelerator carry an electromagnetic field, which can be viewed as a flux of quasi-real photons. The photon-nucleus and photon-proton processes can be studied in ultra-peripheral collisions and offer an unique opportunity to study fundamental interactions in QED and QCD providing for example experimental data to search for saturation and shadowing effects. [...]
SISSA, 2019 - 9 p. - Published in : PoS LHCP2019 (2019) 227 Fulltext: PDF;
In : 7th Edition of the Large Hadron Collider Physics Conference, Puebla, Mexico, 20 May 2019, pp.227

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