Production of deuterons, tritons, He 3 nuclei, and their antinuclei in pp collisions at s =0.9, 2.76, and 7 TeV

ALICE Collaboration

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Invariant differential yields of deuterons and antideuterons in pp collisions at s = 0.9, 2.76 and 7 TeV and the yields of tritons, He3 nuclei, and their antinuclei at s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|<0.5, extending both the energy and the pT reach of previous measurements up to 3 GeV/c for A=2 and 6 GeV/c for A=3. The coalescence parameters of (anti)deuterons and Hē3 nuclei exhibit an increasing trend with pT and are found to be compatible with measurements in pA collisions at low pT and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.

Original languageEnglish
Article number024615
JournalPhysical Review C
Volume97
Issue number2
DOIs
Publication statusPublished - 2018 Feb 21

Fingerprint

deuterons
nuclei
collisions
transverse momentum
coalescing
center of mass
energy
charged particles
intervals
trends
protons
detectors

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

@article{89a8c003c46244189738c04ba8e68154,
title = "Production of deuterons, tritons, He 3 nuclei, and their antinuclei in pp collisions at s =0.9, 2.76, and 7 TeV",
abstract = "Invariant differential yields of deuterons and antideuterons in pp collisions at s = 0.9, 2.76 and 7 TeV and the yields of tritons, He3 nuclei, and their antinuclei at s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|<0.5, extending both the energy and the pT reach of previous measurements up to 3 GeV/c for A=2 and 6 GeV/c for A=3. The coalescence parameters of (anti)deuterons and Hē3 nuclei exhibit an increasing trend with pT and are found to be compatible with measurements in pA collisions at low pT and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.",
author = "{ALICE Collaboration} and S. Acharya and J. Adam and D. Adamov{\'a} and J. Adolfsson and Aggarwal, {M. M.} and {Aglieri Rinella}, G. and M. Agnello and N. Agrawal and Z. Ahammed and N. Ahmad and Ahn, {S. U.} and S. Aiola and A. Akindinov and M. Al-Turany and Alam, {S. N.} and Alba, {J. L.B.} and Albuquerque, {D. S.D.} and D. Aleksandrov and B. Alessandro and {Alfaro Molina}, R. and A. Alici and A. Alkin and J. Alme and T. Alt and L. Altenkamper and I. Altsybeev and {Alves Garcia Prado}, C. and C. Andrei and D. Andreou and Andrews, {H. A.} and A. Andronic and V. Anguelov and C. Anson and T. Antičić and F. Antinori and P. Antonioli and R. Anwar and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arnold, {O. W.} and Arsene, {I. C.} and M. Arslandok and B. Audurier and A. Augustinus and R. Averbeck and Azmi, {M. D.} and A. Badal{\'a} and Youngjoon Kwon",
year = "2018",
month = "2",
day = "21",
doi = "10.1103/PhysRevC.97.024615",
language = "English",
volume = "97",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "2",

}

Production of deuterons, tritons, He 3 nuclei, and their antinuclei in pp collisions at s =0.9, 2.76, and 7 TeV. / ALICE Collaboration.

In: Physical Review C, Vol. 97, No. 2, 024615, 21.02.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Production of deuterons, tritons, He 3 nuclei, and their antinuclei in pp collisions at s =0.9, 2.76, and 7 TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adam, J.

AU - Adamová, D.

AU - Adolfsson, J.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, N.

AU - Ahn, S. U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Alba, J. L.B.

AU - Albuquerque, D. S.D.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfaro Molina, R.

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Altenkamper, L.

AU - Altsybeev, I.

AU - Alves Garcia Prado, C.

AU - Andrei, C.

AU - Andreou, D.

AU - Andrews, H. A.

AU - Andronic, A.

AU - Anguelov, V.

AU - Anson, C.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anwar, R.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arnold, O. W.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Audurier, B.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Badalá, A.

AU - Kwon, Youngjoon

PY - 2018/2/21

Y1 - 2018/2/21

N2 - Invariant differential yields of deuterons and antideuterons in pp collisions at s = 0.9, 2.76 and 7 TeV and the yields of tritons, He3 nuclei, and their antinuclei at s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|<0.5, extending both the energy and the pT reach of previous measurements up to 3 GeV/c for A=2 and 6 GeV/c for A=3. The coalescence parameters of (anti)deuterons and Hē3 nuclei exhibit an increasing trend with pT and are found to be compatible with measurements in pA collisions at low pT and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.

AB - Invariant differential yields of deuterons and antideuterons in pp collisions at s = 0.9, 2.76 and 7 TeV and the yields of tritons, He3 nuclei, and their antinuclei at s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|<0.5, extending both the energy and the pT reach of previous measurements up to 3 GeV/c for A=2 and 6 GeV/c for A=3. The coalescence parameters of (anti)deuterons and Hē3 nuclei exhibit an increasing trend with pT and are found to be compatible with measurements in pA collisions at low pT and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.

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U2 - 10.1103/PhysRevC.97.024615

DO - 10.1103/PhysRevC.97.024615

M3 - Article

VL - 97

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 2

M1 - 024615

ER -