Measurement of D-meson production at mid-rapidity in pp collisions at root s=7 TeV

S. Acharya; D. Adamova; M.M. Aggarwal; G.A. Rinella; Maria Agnello; N. Agrawal; Z. Ahammed; N. Ahmad; S. U. Ahn; S. Aiola; A. Akindinov; SN Alam; DSD Albuquerque; D. Aleksandrov; B. Alessandro; Ian Bearden; Christian Holm Christensen; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Børge Svane Nielsen; Ante Bilandzic; Marek Chojnacki; Valentina Zaccolo; You Zhou; Katarina Gajdosova; Christian Alexander Bourjau; Vojtech Pacik; Lais Ozelin de Lima Pimentel

doi:10.1140/epjc/s10052-017-5090-4

Measurement of D-meson production at mid-rapidity in pp collisions at root s=7 TeV

S. Acharya, D. Adamova, M.M. Aggarwal, G.A. Rinella, Maria Agnello, N. Agrawal, Z. Ahammed, N. Ahmad, S. U. Ahn, S. Aiola, A. Akindinov, SN Alam, DSD Albuquerque, D. Aleksandrov, B. Alessandro, Ian Bearden, Christian Holm Christensen, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Børge Svane NielsenAnte Bilandzic, Marek Chojnacki, Valentina Zaccolo, You Zhou, Katarina Gajdosova, Christian Alexander Bourjau, Vojtech Pacik, Lais Ozelin de Lima Pimentel

Experimental Particle Physics

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Abstract

The production cross sections for prompt charmed mesons D ⁰, D ⁺, D ^{∗ +} and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D ⁰→ K ^-π⁺, D ⁺→ K ^-π⁺π⁺, D ^{∗ +}→ D ⁰π⁺, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (p_T) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c c ¯ production cross section is likewise improved. The measured p_T-differential cross sections are compared with the results of three perturbative QCD calculations.

Original language	English
Article number	550
Journal	European Physical Journal C
Issue number	8
ISSN	1434-6044
DOIs	https://doi.org/10.1140/epjc/s10052-017-5090-4
Publication status	Published - 1 Aug 2017

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Acharya, S., Adamova, D., Aggarwal, M. M., Rinella, G. A., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, N., U. Ahn, S., Aiola, S., Akindinov, A., Alam, SN., Albuquerque, DSD., Aleksandrov, D., Alessandro, B., Bearden, I., Christensen, C. H., Gulbrandsen, K. H., Gaardhøje, J. J., ... Pimentel, L. O. D. L. (2017). Measurement of D-meson production at mid-rapidity in pp collisions at root s=7 TeV. European Physical Journal C, (8), [550]. https://doi.org/10.1140/epjc/s10052-017-5090-4

Acharya, S, Adamova, D, Aggarwal, MM, Rinella, GA, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, U. Ahn, S, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Bearden, I , Christensen, CH , Gulbrandsen, KH , Gaardhøje, JJ , Nielsen, BS, Bilandzic, A, Chojnacki, M, Zaccolo, V, Zhou, Y, Gajdosova, K, Bourjau, CA, Pacik, V & Pimentel, LODL 2017, 'Measurement of D-meson production at mid-rapidity in pp collisions at root s=7 TeV', European Physical Journal C, no. 8, 550. https://doi.org/10.1140/epjc/s10052-017-5090-4

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abstract = "The production cross sections for prompt charmed mesons D 0, D +, D ∗ + and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D 0→ K -π+, D +→ K -π+π+, D ∗ +→ D 0π+, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c c ¯ production cross section is likewise improved. The measured pT-differential cross sections are compared with the results of three perturbative QCD calculations.",

author = "S. Acharya and D. Adamova and M.M. Aggarwal and G.A. Rinella and Maria Agnello and N. Agrawal and Z. Ahammed and N. Ahmad and {U. Ahn}, S. and S. Aiola and A. Akindinov and SN Alam and DSD Albuquerque and D. Aleksandrov and B. Alessandro and Ian Bearden and Christensen, {Christian Holm} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Nielsen, {B{\o}rge Svane} and Ante Bilandzic and Marek Chojnacki and Valentina Zaccolo and You Zhou and Katarina Gajdosova and Bourjau, {Christian Alexander} and Vojtech Pacik and Pimentel, {Lais Ozelin de Lima}",

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AU - Acharya, S.

AU - Adamova, D.

AU - Aggarwal, M.M.

AU - Rinella, G.A.

AU - Agnello, Maria

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, N.

AU - U. Ahn, S.

AU - Aiola, S.

AU - Akindinov, A.

AU - Alam, SN

AU - Albuquerque, DSD

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Bearden, Ian

AU - Christensen, Christian Holm

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Nielsen, Børge Svane

AU - Bilandzic, Ante

AU - Chojnacki, Marek

AU - Zaccolo, Valentina

AU - Zhou, You

AU - Gajdosova, Katarina

AU - Bourjau, Christian Alexander

AU - Pacik, Vojtech

AU - Pimentel, Lais Ozelin de Lima

PY - 2017/8/1

Y1 - 2017/8/1

N2 - The production cross sections for prompt charmed mesons D 0, D +, D ∗ + and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D 0→ K -π+, D +→ K -π+π+, D ∗ +→ D 0π+, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c c ¯ production cross section is likewise improved. The measured pT-differential cross sections are compared with the results of three perturbative QCD calculations.

AB - The production cross sections for prompt charmed mesons D 0, D +, D ∗ + and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D 0→ K -π+, D +→ K -π+π+, D ∗ +→ D 0π+, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c c ¯ production cross section is likewise improved. The measured pT-differential cross sections are compared with the results of three perturbative QCD calculations.

U2 - 10.1140/epjc/s10052-017-5090-4

DO - 10.1140/epjc/s10052-017-5090-4

M3 - Journal article

SN - 1434-6044

JO - The European Physical Journal C: Particles and Fields

JF - The European Physical Journal C: Particles and Fields

IS - 8

M1 - 550

ER -

Measurement of D-meson production at mid-rapidity in pp collisions at root s=7 TeV

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