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ALICE Preprints

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2020-11-14
04:10
Open heavy-flavour production from small to large collision systems with ALICE at the LHC / Vermunt, Luuk
Heavy quarks are effective probes to study the properties of the quark-gluon plasma (QGP) produced in ultra-relativistic heavy-ion collisions. [...]
arXiv:2011.06291.
- 6 p.
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2020-11-10
11:08
Jet fragmentation transverse momentum distributions in pp and p–Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
Jet fragmentation transverse momentum ($j_{\rm T}$) distributions are measured in proton-proton (pp) and proton-lead (p–Pb) collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with the ALICE experiment at the LHC. Jets are reconstructed with the ALICE tracking detectors and electromagnetic calorimeter using the anti-kT algorithm with resolution parameter $R$ = 0.4 in the pseudorapidity range $|\eta|$ < 0.25. [...]
arXiv:2011.05904; CERN-EP-2020-220.- Geneva : CERN, 2020 - 30 p. Draft (restricted): PDF; Fulltext: PDF;

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2020-11-06
18:13
$\Lambda^{+}_{\rm c}$ production in pp and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al.
The production cross section of prompt $\Lambda^{+}_{\rm c}$ charmed baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{\rm NN}} = 5.02$ TeV. The $\Lambda^{+}_{\rm c}$ and $\overline{\Lambda}^{-}_{\rm c}$ baryons were reconstructed in the hadronic decay channels $\Lambda^{+}_{\rm c} \rightarrow {\rm p}{\rm K}^{-}\pi{+}$ and $\Lambda^{+}_{\rm c} \rightarrow {\rm p}{\rm K}^{0}_{\rm S}$ and respective charge conjugates. [...]
arXiv:2011.06079; CERN-EP-2020-218.- Geneva : CERN, 2020 - 37 p. Draft (restricted): PDF; Fulltext: PDF;

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2020-11-06
17:53
$\Lambda_c^+$ production and baryon-to-meson ratios in pp and p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV at the LHC / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The prompt production of the charmed baryon $\Lambda_c^+$ and the $\Lambda_c^+$/D$^0$ production ratios were measured at midrapidity with the ALICE detector in pp and p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV. These new measurements show a clear decrease of the Λ+c /D0 ratio with increasing transverse momentum ($p_{T}$) in both collision systems in the range 2 < $p_{T}$ < 12 GeV/$c$, exhibiting similarities with the light-flavour baryon-to-meson ratios p/$\pi$ and $\Lambda$/K$_S$. [...]
arXiv:2011.06078; CERN-EP-2020-217.- Geneva : CERN, 2020 - 18 p. Draft (restricted): PDF; Fulltext: PDF;

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2020-11-03
21:47
Jet-associated deuteron production in pp collisions at $\sqrt{s}=13$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al.
Deuteron production in high-energy collisions is sensitive to the space-time evolution of the collision system, and is typically described by a coalescence mechanism. For the first time, we present results on jet-associated deuteron production in pp collisions at $\sqrt{s}=13$ TeV, providing an opportunity to test the established picture for deuteron production in events with a hard scattering. [...]
arXiv:2011.05898; CERN-EP-2020-210.- Geneva : CERN, 2020 - 18 p. Draft (restricted): PDF; Fulltext: PDF;

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2020-11-03
14:44
$\Upsilon$~production and nuclear modification at forward rapidity in Pb-Pb collisions at $\sqrt{\textit{s}_{\textbf{NN}} =5.02}$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The production of $\Upsilon$~mesons in Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{\textit{s}_{\textbf{NN}} =5.02}$ TeV is measured with the muon spectrometer of ALICE at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region $2.5<y<4.0$, as a function of rapidity, transverse momentum and collision centrality. [...]
arXiv:2011.05758; CERN-EP-2020-207.- Geneva : CERN, 2020 - 24 p. Draft (restricted): PDF; Fulltext: PDF;

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2020-10-21
17:20
Inclusive heavy-flavour production at central and forward rapidity in Xe--Xe collisions at $\sqrt{s_{\rm NN}}=5.44$~TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The first measurements of the production of muons and electrons from heavy-flavour hadron decays in Xe--Xe collisions at $\sqrt{s_{\rm NN}}$ = 5.44 TeV, using the ALICE detector at the LHC, are reported. The measurement of the nuclear modification factor $R_{\rm AA}$ is performed as a function of transverse momentum $\pT$ in several centrality classes at forward rapidity ($2.5 < y <4$) and midrapidity ($\vert y \vert < 0.8$) for muons and electrons from heavy-flavour hadron decays, respectively. [...]
arXiv:2011.06970; CERN-EP-2020-208.- Geneva : CERN, 2020 - 26 p. Draft (restricted): PDF; Fulltext: PDF;

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2020-10-14
04:08
Topological studies of light-flavor hadron production in pp, p-Pb, and Pb-Pb collisions with ALICE at the LHC / Tripathy, Sushanta (Mexico U., ICN) /ALICE Collaboration
Recent results for high multiplicity pp and p-Pb collisions have revealed that they exhibit heavy-ion-like behaviors. To understand the origin(s) of these unexpected phenomena, event shape observables such as transverse spherocity ($S_{\rm 0}^{p_{\rm T} = 1}$) and the relative transverse activity classifier ($R_{\rm{T}}$) can be exploited as a powerful tools to disentangle soft (non-perturbative) and hard (perturbative) particle production. [...]
arXiv:2010.05038.- 2020-10-10 - 6 p. Fulltext: PDF;
In : The 5th International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, 5 - 9 Oct 2020

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2020-10-08
04:41
Light (anti)nuclei production in high-energy nuclear collisions at the LHC with ALICE / Pinto, Chiara (INFN, Catania)
The measurement of (anti)nuclei production in pp, p-A and A-A collisions at ultrarelativistic energies is important to understand hadronization. [...]
arXiv:2010.02632.
- 5 p.
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2020-10-07
04:06
Energy dependence of light neutral meson $p_{\rm T}$ spectrum produced in pp collisions at the LHC measured in ALICE / Pareek, Pooja (Calcutta, VECC)
We present the measurement of light neutral mesons, $\pi^{0}$ and $\eta$, in pp collisions at different center-of-mass energies obtained with the ALICE experiment at the LHC. [...]
arXiv:2010.01605.
- 5 p.
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