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

S. Acharya; J. Adam; D. Adamova; J Adolfsson; MM. Aggarwal; G.A. Rinella; Maria Agnello; Z. Ahammed; N. Ahmad; S.U. Ahn; S. Aiola; A. Akindinov; M. Al-Turany; SN Alam; J.L.B. Alba; DSD Albuquerque; D. Aleksandrov; B Alessandro; R. Alfaro Molina; A. Alici; A. Alkin; Ian Bearden; Christian Alexander Bourjau; Ante Bilandzic; Marek Chojnacki; Jens Jørgen Gaardhøje; bsm989 bsm989; Lais Ozelin de Lima Pimentel; Freja Thoresen; Børge Svane Nielsen; Vojtech Pacik; You Zhou; Vytautas Vislavicius; Katarina Gajdosova; rtc312 rtc312

doi:10.1103/PhysRevC.97.024615

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

S. Acharya, J. Adam, D. Adamova, J Adolfsson, MM. Aggarwal, G.A. Rinella, Maria Agnello, Z. Ahammed, N. Ahmad, S.U. Ahn, S. Aiola, A. Akindinov, M. Al-Turany, SN Alam, J.L.B. Alba, DSD Albuquerque, D. Aleksandrov, B Alessandro, R. Alfaro Molina, A. AliciA. Alkin, Ian Bearden, Christian Alexander Bourjau, Ante Bilandzic, Marek Chojnacki, Jens Jørgen Gaardhøje, bsm989 bsm989, Lais Ozelin de Lima Pimentel, Freja Thoresen, Børge Svane Nielsen, Vojtech Pacik, You Zhou, Vytautas Vislavicius, Katarina Gajdosova, rtc312 rtc312

Experimental Particle Physics

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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 language	English
Article number	024615
Journal	Physical Review C
Volume	97
Issue number	2
Number of pages	17
ISSN	2469-9985
DOIs	https://doi.org/10.1103/PhysRevC.97.024615
Publication status	Published - 21 Feb 2018

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PhysRevC.97.024615Final published version, 0.98 MBLicence: CC BY

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Acharya, S., Adam, J., Adamova, D., Adolfsson, J., Aggarwal, MM., Rinella, G. A., Agnello, M., Ahammed, Z., Ahmad, N., Ahn, S. U., Aiola, S., Akindinov, A., Al-Turany, M., Alam, SN., Alba, J. L. B., Albuquerque, DSD., Aleksandrov, D., Alessandro, B., Alfaro Molina, R., ... rtc312, R. (2018). Production of deuterons, tritons, ³He nuclei, and their antinuclei in pp collisions at root s=0.9, 2.76, and 7 TeV. Physical Review C, 97(2), [024615]. https://doi.org/10.1103/PhysRevC.97.024615

Acharya, S, Adam, J, Adamova, D, Adolfsson, J, Aggarwal, MM, Rinella, GA, Agnello, M, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Bearden, I, Bourjau, CA, Bilandzic, A, Chojnacki, M, Gaardhøje, JJ , bsm989, B, Pimentel, LODL, Thoresen, F, Nielsen, BS, Pacik, V, Zhou, Y, Vislavicius, V, Gajdosova, K & rtc312, R 2018, 'Production of deuterons, tritons, ³He nuclei, and their antinuclei in pp collisions at root s=0.9, 2.76, and 7 TeV', Physical Review C, vol. 97, no. 2, 024615. https://doi.org/10.1103/PhysRevC.97.024615

@article{20f010fa1abf4f198a5b817d41189832,

title = "Production of deuterons, tritons, 3He nuclei, and their antinuclei in pp collisions at root 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 = "S. Acharya and J. Adam and D. Adamova and J Adolfsson and MM. Aggarwal and G.A. Rinella and Maria Agnello and Z. Ahammed and N. Ahmad and S.U. Ahn and S. Aiola and A. Akindinov and M. Al-Turany and SN Alam and J.L.B. Alba and DSD Albuquerque and D. Aleksandrov and B Alessandro and {Alfaro Molina}, R. and A. Alici and A. Alkin and Ian Bearden and Bourjau, {Christian Alexander} and Ante Bilandzic and Marek Chojnacki and Gaardh{\o}je, {Jens J{\o}rgen} and bsm989 bsm989 and Pimentel, {Lais Ozelin de Lima} and Freja Thoresen and Nielsen, {B{\o}rge Svane} and Vojtech Pacik and You Zhou and Vytautas Vislavicius and Katarina Gajdosova and rtc312 rtc312",

year = "2018",

month = feb,

day = "21",

doi = "10.1103/PhysRevC.97.024615",

language = "English",

volume = "97",

journal = "Physical Review C",

issn = "2469-9985",

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

AU - Acharya, S.

AU - Adam, J.

AU - Adamova, D.

AU - Adolfsson, J

AU - Aggarwal, MM.

AU - Rinella, G.A.

AU - Agnello, Maria

AU - Ahammed, Z.

AU - Ahmad, N.

AU - Ahn, S.U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, SN

AU - Alba, J.L.B.

AU - Albuquerque, DSD

AU - Aleksandrov, D.

AU - Alessandro, B

AU - Alfaro Molina, R.

AU - Alici, A.

AU - Alkin, A.

AU - Bearden, Ian

AU - Bourjau, Christian Alexander

AU - Bilandzic, Ante

AU - Chojnacki, Marek

AU - Gaardhøje, Jens Jørgen

AU - bsm989, bsm989

AU - Pimentel, Lais Ozelin de Lima

AU - Thoresen, Freja

AU - Nielsen, Børge Svane

AU - Pacik, Vojtech

AU - Zhou, You

AU - Vislavicius, Vytautas

AU - Gajdosova, Katarina

AU - rtc312, rtc312

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.

U2 - 10.1103/PhysRevC.97.024615

DO - 10.1103/PhysRevC.97.024615

M3 - Journal article

SN - 2469-9985

VL - 97

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024615

ER -

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

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