CERN Accelerating science

ALICE Papers

Posledne pridané:
2019-02-21
14:51
Investigations of anisotropic flow using multi-particle azimuthal correlations in pp, p$-$Pb, Xe$-$Xe, and Pb$-$Pb collisions at the LHC / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Enrico Fermi Ctr., Rome) ; Ahammed, Zubayer (Calcutta, VECC) et al.
Measurements of anisotropic flow coefficients ($v_{\rm n}$)and their cross-correlations using two- and multi-particle cumulant methods are reported in collisions of pp at $\sqrt{s}$ = 13 TeV, p$–$Pb at $\sqrt{s_{\rm NN}}$ = 5.02 TeV, Xe$-$Xe at $\sqrt{s_{\rm NN}}$ = 5.44 TeV, and Pb–Pb at $\sqrt{s_{\rm NN}}$= 5.02 TeV recorded with the ALICE detector. These measurements are performed as a function of multiplicity in the mid-rapidity region |$\eta$| < 0.8 for the transverse momentum range 0.2 < $p_{\rm T}$ < 3.0 GeV/$c$. [...]
arXiv:1903.01790; CERN-EP-2019-033.- Geneva : CERN, 2019 - 20 p. Draft (restricted): PDF; Fulltext: PDF;

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2019-02-13
20:53
Multiplicity dependence of (anti-)deuteron production in pp collisions at $\sqrt{s}$ = 7 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Ahammed, Zubayer (Calcutta, VECC) et al.
In this letter, the production of deuterons and anti-deuterons in pp collisions at $\sqrt{s} = 7$ TeV is studied as a function of the charged-particle multiplicity density at mid-rapidity with the ALICE detector at the LHC. Production yields are measured at mid-rapidity in five multiplicity classes and as a function of the deuteron transverse momentum ($p_{\rm{T}}$). [...]
arXiv:1902.09290; CERN-EP-2019-024.- Geneva : CERN, 2019 - 24 p. Draft (restricted): PDF; Fulltext: PDF;

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2019-02-07
19:35
Calibration of the photon spectrometer PHOS of the ALICE experiment / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Ahammed, Zubayer (Calcutta, VECC) et al.
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 evaluate the geometrical alignment and the corresponding correction of the absolute energy scale, to obtain the nonlinearity 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 $\sqrt{s}=13$ TeV. [...]
arXiv:1902.06145; CERN-EP-2019-020.- Geneva : CERN, 2019 - 26 p. Draft (restricted): PDF; Fulltext: PDF;

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2019-01-15
21:09
Measurement of D$^0$, D$^+$, D$^*$ and D$_s$ production in pp collisions at $\sqrt{s}$ = 5.02 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) et al.
The measurements of the production of prompt D$^0$, D$^+$, D$^*$ and D$_s$ mesons in proton-proton (pp) collisions at $\sqrt{s}$ = 5.02 TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity ($|y|<0.5$) via their hadronic decay channels ${\rm D}^0 \to {\rm K}^-\pi^+$, ${\rm D}^+\to {\rm K}^-\pi^+\pi^+$, ${\rm D}^{*+} \to {\rm D}^0 \pi^+ \to {\rm K}^- \pi^+ \pi^+$, ${\rm D^{+}_{s}\to \phi\pi^+\to K^{+} K^{-} \pi^{+}}$, and their charge conjugates. [...]
arXiv:1901.07979; CERN-EP-2019-004.- Geneva : CERN, 2019 - 32 p. Draft (restricted): PDF; Fulltext: PDF;

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2018-12-13
16:07
Real-time data processing in the ALICE High Level Trigger at the LHC / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Ahammed, Zubayer (Calcutta, VECC) et al.
At the Large Hadron Collider at CERN in Geneva, Switzerland, atomic nuclei are collided at ultra-relativistic energies. Many final-state particles are produced in each collision and their properties are measured by the ALICE detector. [...]
arXiv:1812.08036; CERN-EP-2018-337.- Geneva : CERN, 2018 - 43 p. Draft (restricted): 2.PDF; Fulltext: PDF;

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2018-12-06
10:22
Event-shape and multiplicity dependence of freeze-out radii in pp collisions at $\sqrt{s}$ = 7 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) et al.
Two-particle correlations in high-energy collision experiments enable the extraction of particle source radii by using the Bose-Einstein enhancement of pion production at low relative momentum $q\propto 1/R$. It was previously observed that in pp collisions at $\sqrt{s}$ = 7 TeV the average pair transverse momentum $k_{\rm{T}}$ range of such analyses is limited due to large background correlations which were attributed to mini-jet phenomena. [...]
arXiv:1901.05518; CERN-EP-2018-332.- Geneva : CERN, 2018 - 21 p. Draft (restricted): PDF; Fulltext: PDF;

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2018-11-23
01:56
Study of J/$\psi$ azimuthal anisotropy at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration
The second ($v_2$) and third ($v_3$) flow harmonic coefficients of J/$\psi$ mesons are measured at forward rapidity (2.5 $<$ $y$ $<$ 4.0) in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with the ALICE detector at the LHC. Results are obtained with the scalar product method and reported as a function of transverse momentum, $p_{\rm{T}}$, for various collision centralities. [...]
arXiv:1811.12727; CERN-EP-2018-319.- Geneva : CERN, 2019-02-04 - 26 p. - Published in : JHEP 02 (2019) 012 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: PDF;

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2018-11-19
10:25
Charged-particle pseudorapidity density at mid-rapidity in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 8.16 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Ahammed, Zubayer (Calcutta, VECC) et al.
The pseudorapidity density of charged particles, $\rm{d}N_\rm{ch}/\rm{d}\eta$, in p-Pb collisions has been measured at a centre-of-mass energy per nucleon-nucleon pair of $\sqrt{s_{\rm{NN}}}$ = 8.16 TeV at mid-pseudorapidity for non-single-diffractive events. The results cover 3.6 units of pseudorapidity, $|\eta|<1.8$. [...]
arXiv:1812.01312; CERN-EP-2018-315.- Geneva : CERN, 2018 - 23 p. Draft (restricted): PDF; Fulltext: PDF;

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2018-11-02
19:52
Jet fragmentation transverse momentum measurements from di-hadron correlations in $\sqrt{s}$ = 7 TeV pp and $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV p-Pb collisions / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Ahammed, Zubayer (Calcutta, VECC) et al.
The transverse structure of jets was studied via jet fragmentation transverse momentum ($j_{\rm{T}}$) distributions, obtained using two-particle correlations in proton-proton and proton-lead collisions, measured with the ALICE experiment at the LHC. The highest transverse momentum particle in each event is used as the trigger particle and the region 3 < $p_{\rm{Tt}}$ < 15 GeV/$c$ is explored in this study. [...]
arXiv:1811.09742; CERN-EP-2018-303.- Geneva : CERN, 2018 - 21 p. Draft (restricted): PDF; Fulltext: PDF;

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2018-09-19
15:20
$\Lambda_{\rm c}^{+}$ production in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adhya, Souvik Priyam (Calcutta, VECC) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) et al.
A measurement of the production of prompt $\Lambda_{\rm c}^{+}$ baryons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV with the ALICE detector at the LHC is reported. The $\Lambda_{\rm c}^{+}$ and ${\overline{\Lambda_{\rm c}^{-}}}$ were reconstructed at midrapidity ($|y|<0.5$) via the hadronic decay channel $\Lambda_{\rm c}^{+}\rightarrow {\rm K}_{\rm S}^{0}$ (and charge conjugate) in the transverse momentum and centrality intervals $6<p_{\rm T}<12$ GeV/$c$ and 0–80%. [...]
arXiv:1809.10922; CERN-EP-2018-261.- Geneva : CERN, 2018 - 19 p. Draft (restricted): PDF; Fulltext: PDF;

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