Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV

S. Acharya; FT Acosta; D. Adamova; J Adolfsson; MM. Aggarwal; G. Aglieri Rinella; Maria Agnello; N. Agrawal; Z. Ahammed; S.U. Ahn; S. Aiola; A. Akindinov; M. Al-Turany; SN Alam; DSD Albuquerque; D. Aleksandrov; B Alessandro; Rafael A. Molina; Yusuf Ali; A. Alici; A. Alkin; J. Alme; T. Alt; Ian Bearden; Ante Bilandzic; Marek Chojnacki; bsm989 bsm989; Katarina Gajdosova; Christian Alexander Bourjau; Christian Holm Christensen; Lais Ozelin De Lima Pimentel; Jens Jørgen Gaardhøje; Freja Thoresen; Børge Svane Nielsen; You Zhou

doi:10.1007/JHEP10(2018)174

Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV

S. Acharya, FT Acosta, D. Adamova, J Adolfsson, MM. Aggarwal, G. Aglieri Rinella, Maria Agnello, N. Agrawal, Z. Ahammed, S.U. Ahn, S. Aiola, A. Akindinov, M. Al-Turany, SN Alam, DSD Albuquerque, D. Aleksandrov, B Alessandro, Rafael A. Molina, Yusuf Ali, A. AliciA. Alkin, J. Alme, T. Alt, Ian Bearden, Ante Bilandzic, Marek Chojnacki, bsm989 bsm989, Katarina Gajdosova, Christian Alexander Bourjau, Christian Holm Christensen, Lais Ozelin De Lima Pimentel, Jens Jørgen Gaardhøje, Freja Thoresen, Børge Svane Nielsen, You Zhou

Eksperimentel subatomar fysik

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Abstract

We report measurements of the production of prompt D⁰, D⁺, D^*+ and D_s ⁺ mesons in Pb–Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, in the centrality classes 0–10%, 30–50% and 60–80%. The D-meson production yields are measured at mid-rapidity (|y| < 0.5) as a function of transverse momentum (p_T). The p_T intervals covered in central collisions are: 1 < p_T< 50 GeV/c for D⁰, 2 < p_T< 50GeV/c for D⁺, 3 < p_T< 50GeV/c for D^*+, and 4 < p_T< 16GeV/c for D_s ⁺ mesons. The nuclear modification factors (R_AA) for non-strange D mesons (D⁰, D⁺, D^*+) show minimum values of about 0.2 for p_T = 6–10 GeV/c in the most central collisions and are compatible within uncertainties with those measured at sNN=2.76 TeV. For D_s ⁺ mesons, the values of R_AA are larger than those of non-strange D mesons, but compatible within uncertainties. In central collisions the average R_AA of non-strange D mesons is compatible with that of charged particles for p_T> 8 GeV/c, while it is larger at lower p_T. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementations of in-medium energy loss.[Figure not available: see fulltext.]

Originalsprog	Engelsk
Artikelnummer	174
Tidsskrift	Journal of High Energy Physics
Vol/bind	2018
Udgave nummer	10
Antal sider	35
ISSN	1126-6708
DOI	https://doi.org/10.1007/JHEP10(2018)174
Status	Udgivet - 1 okt. 2018

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10.1007/JHEP10(2018)174Licens: CC BY

Acharya2018_Article_MeasurementOfD0DDAndDsProductiForlagets udgivne version, 1 MB

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Acharya, S., Acosta, FT., Adamova, D., Adolfsson, J., Aggarwal, MM., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahn, S. U., Aiola, S., Akindinov, A., Al-Turany, M., Alam, SN., Albuquerque, DSD., Aleksandrov, D., Alessandro, B., Molina, R. A., Ali, Y., ... Zhou, Y. (2018). Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV. Journal of High Energy Physics, 2018(10), Artikel 174. https://doi.org/10.1007/JHEP10(2018)174

Acharya, S, Acosta, FT, Adamova, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, RA, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Bearden, I, Bilandzic, A, Chojnacki, M, bsm989, B, Gajdosova, K, Bourjau, CA, Christensen, CH, Ozelin De Lima Pimentel, L, Gaardhøje, JJ, Thoresen, F, Nielsen, BS & Zhou, Y 2018, 'Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV', Journal of High Energy Physics, bind 2018, nr. 10, 174. https://doi.org/10.1007/JHEP10(2018)174

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title = "Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV",

abstract = "We report measurements of the production of prompt D0, D+, D*+ and Ds + mesons in Pb–Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, in the centrality classes 0–10%, 30–50% and 60–80%. The D-meson production yields are measured at mid-rapidity (|y| < 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 < pT< 50 GeV/c for D0, 2 < pT< 50GeV/c for D+, 3 < pT< 50GeV/c for D*+, and 4 < pT< 16GeV/c for Ds + mesons. The nuclear modification factors (RAA) for non-strange D mesons (D0, D+, D*+) show minimum values of about 0.2 for pT = 6–10 GeV/c in the most central collisions and are compatible within uncertainties with those measured at sNN=2.76 TeV. For Ds + mesons, the values of RAA are larger than those of non-strange D mesons, but compatible within uncertainties. In central collisions the average RAA of non-strange D mesons is compatible with that of charged particles for pT> 8 GeV/c, while it is larger at lower pT. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementations of in-medium energy loss.[Figure not available: see fulltext.]",

author = "S. Acharya and FT Acosta and D. Adamova and J Adolfsson and MM. Aggarwal and {Aglieri Rinella}, G. and Maria Agnello and N. Agrawal and Z. Ahammed and S.U. Ahn and S. Aiola and A. Akindinov and M. Al-Turany and SN Alam and DSD Albuquerque and D. Aleksandrov and B Alessandro and Molina, {Rafael A.} and Yusuf Ali and A. Alici and A. Alkin and J. Alme and T. Alt and Ian Bearden and Ante Bilandzic and Marek Chojnacki and bsm989 bsm989 and Katarina Gajdosova and Bourjau, {Christian Alexander} and Christensen, {Christian Holm} and {Ozelin De Lima Pimentel}, Lais and Gaardh{\o}je, {Jens J{\o}rgen} and Freja Thoresen and Nielsen, {B{\o}rge Svane} and You Zhou",

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T1 - Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV

AU - Acharya, S.

AU - Acosta, FT

AU - Adamova, D.

AU - Adolfsson, J

AU - Aggarwal, MM.

AU - Aglieri Rinella, G.

AU - Agnello, Maria

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, S.U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, SN

AU - Albuquerque, DSD

AU - Aleksandrov, D.

AU - Alessandro, B

AU - Molina, Rafael A.

AU - Ali, Yusuf

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Bearden, Ian

AU - Bilandzic, Ante

AU - Chojnacki, Marek

AU - bsm989, bsm989

AU - Gajdosova, Katarina

AU - Bourjau, Christian Alexander

AU - Christensen, Christian Holm

AU - Ozelin De Lima Pimentel, Lais

AU - Gaardhøje, Jens Jørgen

AU - Thoresen, Freja

AU - Nielsen, Børge Svane

AU - Zhou, You

PY - 2018/10/1

Y1 - 2018/10/1

N2 - We report measurements of the production of prompt D0, D+, D*+ and Ds + mesons in Pb–Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, in the centrality classes 0–10%, 30–50% and 60–80%. The D-meson production yields are measured at mid-rapidity (|y| < 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 < pT< 50 GeV/c for D0, 2 < pT< 50GeV/c for D+, 3 < pT< 50GeV/c for D*+, and 4 < pT< 16GeV/c for Ds + mesons. The nuclear modification factors (RAA) for non-strange D mesons (D0, D+, D*+) show minimum values of about 0.2 for pT = 6–10 GeV/c in the most central collisions and are compatible within uncertainties with those measured at sNN=2.76 TeV. For Ds + mesons, the values of RAA are larger than those of non-strange D mesons, but compatible within uncertainties. In central collisions the average RAA of non-strange D mesons is compatible with that of charged particles for pT> 8 GeV/c, while it is larger at lower pT. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementations of in-medium energy loss.[Figure not available: see fulltext.]

AB - We report measurements of the production of prompt D0, D+, D*+ and Ds + mesons in Pb–Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, in the centrality classes 0–10%, 30–50% and 60–80%. The D-meson production yields are measured at mid-rapidity (|y| < 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 < pT< 50 GeV/c for D0, 2 < pT< 50GeV/c for D+, 3 < pT< 50GeV/c for D*+, and 4 < pT< 16GeV/c for Ds + mesons. The nuclear modification factors (RAA) for non-strange D mesons (D0, D+, D*+) show minimum values of about 0.2 for pT = 6–10 GeV/c in the most central collisions and are compatible within uncertainties with those measured at sNN=2.76 TeV. For Ds + mesons, the values of RAA are larger than those of non-strange D mesons, but compatible within uncertainties. In central collisions the average RAA of non-strange D mesons is compatible with that of charged particles for pT> 8 GeV/c, while it is larger at lower pT. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementations of in-medium energy loss.[Figure not available: see fulltext.]

U2 - 10.1007/JHEP10(2018)174

DO - 10.1007/JHEP10(2018)174

M3 - Journal article

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 174

ER -

Measurement of D-0, D+, D*+ and D-s(+) production in Pb-Pb collisions at root s(NN)=5:02 TeV

Abstract

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