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ALICE Conference Contributions

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2021-09-15
09:56
Recent results on collectivity in small systems from ALICE / Khabanova, Zhanna (Nikhef, Amsterdam) /ALICE Collaboration
Recent measurements performed at the LHC have revealed an unexpected presence of the near-side ridge and other signs of collectivity in p-Pb and pp collisions, referred to as small systems. Since in heavy-ion collisions these effects are caused by the formation and collective expansion of a quark-gluon plasma (QGP), such observations in small systems have triggered the ongoing debate about their origin. [...]
SISSA, 2021 - 6 p. - Published in : PoS LHCP2020 (2021) 039 Fulltext: PDF;
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.039

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2021-09-15
04:51
$\rm{\Lambda^{+}_{c}}$ production cross section in pp and p--Pb collisions down to $p_{\rm T}$ = 0 at $\sqrt{s_{\rm NN}}$ = 5.02 TeV measured with ALICE / Kalteyer, Annalena Sophie (Darmstadt, GSI ; Heidelberg U.)
The open heavy-flavour hadron measurements in proton--proton and proton--lead collisions give insight into the charm production and hadronization mechanisms. [...]
arXiv:2109.05949. - 5 p.

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2021-09-15
04:44
Vertexing detectors and vertexing performance in Run 2 in ALICE / Faggin, Mattia (INFN, Padua ; Padua U.) /ALICE Collaboration
The ALICE apparatus includes an Inner Tracking System for high-precision vertexing and tracking at midrapidity. Thanks to this detector, remarkable results were obtained with Run 2 data in all collision systems studied at the LHC. [...]
arXiv:2008.13530.- SISSA, 2021-01-11 - 4 p. - Published in : PoS LHCP2020 (2021) 042 Fulltext: PDF;
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.042

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2021-09-10
06:27
Light meson nuclear modification factor in p-Pb collisions over an unprecedented $p_\mathrm{T}$ range with ALICE / Schmidt, Nicolas (Oak Ridge) /ALICE Collaboration
Light neutral meson differential invariant cross section and nuclear modification factor measurements have been carried out with the ALICE detector at the CERN LHC in pp collisions at $\sqrt{s}=8$ TeV and p-Pb collisions at $\sqrt{s_\mathrm{NN}}=8.16$ TeV. The analysis combines results from several partially independent reconstruction techniques where the $\pi^0$ and $\eta$ meson decay photons were detected with the electromagnetic calorimeter, EMCal, the photon spectrometer, PHOS, or via reconstruction of $e^+e^-$ pairs from conversions in the ALICE detector material using the central tracking system. The neutral pion measurement reaching a $p_\mathrm{T}$ of 200 GeV/$c$ poses as the highest measured identified particle spectrum to date while the $\eta$ meson is measured to an unprecedented $p_\mathrm{T}$ of 50 GeV/$c$. The spectra are found to be generally overestimated by NLO pQCD calculations. The nuclear modification factors of both mesons exhibit a suppression for $p_\mathrm{T}<10$ GeV/$c$ which is stronger compared to previous measurements at $\sqrt{s_\mathrm{NN}}=5.02$ TeV and consistent with CGC and cold nuclear matter energy loss calculations. [...]
arXiv:2009.03100.- 2021-09-01 - 5 p. - Published in : PoS: HardProbes2020 (2021) , pp. 159
Fulltext: PDF; External link: Preprint
In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions : Hard Probes 2020 (HP2020), Austin, Texas, United States, 31 May - 5 June 2020, pp.159

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2021-09-07
04:26
System size and energy dependence of resonance production in ALICE / Sumberia, Vikash (Jammu U.)
Hadronic resonances, thanks to their relatively short lifetimes, can be used to probe the properties of the hadronic phase in ultrarelativistic heavy-ion collisions. [...]
arXiv:2109.01426. - 4 p.

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2021-09-03
04:24
Charm-baryon enhancement and charm fragmentation fractions in small systems measured with ALICE / Zhu, Jianhui (CCNU, Wuhan, Inst. Part. Phys. ; Darmstadt, GSI)
Recent measurements of charm-baryon production at midrapidity by the ALICE collaboration show baryon-to-meson yield ratios significantly higher than those measured in $\rm e^+e^-$ collisions, suggesting that the charm fragmentations are not universal across different collisions systems. [...]
arXiv:2108.10938. - 4 p.

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2021-09-03
04:23
Studying strangeness and baryon production in small systems through $\Xi-$hadron correlations using the ALICE detector / Adolfsson, Jonatan (Lund U.)
These proceedings summarise recent measurements of angular correlations between the $\Xi$ baryon and identified hadrons in pp collisions at $\sqrt{s}=13\,\mathrm{TeV}$ using the ALICE detector. [...]
arXiv:2108.11504. - 4 p.

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2021-08-13
04:03
Measuring the light meson nuclear modification factor in p-Pb collisions over an unprecedented $p_{\text{T}}$ range with ALICE / König, Joshua (Goethe U., Frankfurt (main))
Differential invariant cross sections of light neutral mesons in p-Pb collisions at $\sqrt{s_{\text{NN}}}$ = 8.16 TeV and in pp collisions at $\sqrt{s}$ = 8 TeV have been measured up to very high transverse momentum ($p_{\text{T}}$). [...]
arXiv:2108.05299. - 7 p.

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2021-08-12
10:11
Soft QCD results from ALICE / Caliva, Alberto (Darmstadt, GSI) /ALICE Collaboration
Most of the processes in high-energy hadronic collisions are dominated by soft interactions with low momentum transfer. The description of these processes typically relies on phenomenological models and soft QCD measurements provide important constraints on the model parameters. [...]
SISSA, 2021 - 5 p. - Published in : PoS LHCP2020 (2021) 147 Fulltext: PDF;
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.147

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2021-08-12
08:55
Quarkonia as probes of the QGP and the initial stages of the heavy-ion collisions with ALICE / McKibben Lofnes, Ingrid (Bergen U.)
Studies of quarkonium production in heavy-ion collisions can be used for probing QGP properties. [...]
arXiv:2108.04524. - 4 p.

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