Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV

J. Adam; D. Adamova; M.M Aggarwal; G Aglieri Rinella; M. Agnello; N Agrawal; Peter Christiansen; Martin Ljunggren; Anders Oskarsson; Tuva Richert; David Silvermyr; Evert Stenlund; Vytautas Vislavicius; ALICE Collaboration

doi:10.1016/j.physletb.2017.05.060

Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV

J. Adam, D. Adamova, M.M Aggarwal, G Aglieri Rinella, M. Agnello, N Agrawal, Peter Christiansen, Martin Ljunggren, Anders Oskarsson, Tuva Richert, David Silvermyr, Evert Stenlund, Vytautas Vislavicius, ALICE Collaboration

Particle and nuclear physics

Research output: Contribution to journal › Article › peer-review

Abstract

Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy sNN=2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3<pT<18 GeV/c. The RAA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi-peripheral (50–80%) collisions is observed. The suppression of electrons in this broad pT interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC. © 2017 The Author

Original language	English
Pages (from-to)	467-481
Number of pages	15
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	771
DOIs	https://doi.org/10.1016/j.physletb.2017.05.060
Publication status	Published - 2017

Bibliographical note

Export Date: 3 July 2017

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1016/j.physletb.2017.05.060

Cite this

Adam, J., Adamova, D., Aggarwal, M. M., Aglieri Rinella, G., Agnello, M., Agrawal, N., Christiansen, P., Ljunggren, M., Oskarsson, A., Richert, T., Silvermyr, D., Stenlund, E., Vislavicius, V., & ALICE Collaboration (2017). Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 771, 467-481. https://doi.org/10.1016/j.physletb.2017.05.060

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title = "Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV",

abstract = "Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy sNN=2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3<pT<18 GeV/c. The RAA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi-peripheral (50–80%) collisions is observed. The suppression of electrons in this broad pT interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC. {\textcopyright} 2017 The Author",

author = "J. Adam and D. Adamova and M.M Aggarwal and {Aglieri Rinella}, G and M. Agnello and N Agrawal and Peter Christiansen and Martin Ljunggren and Anders Oskarsson and Tuva Richert and David Silvermyr and Evert Stenlund and Vytautas Vislavicius and {ALICE Collaboration}",

note = "Export Date: 3 July 2017",

year = "2017",

doi = "10.1016/j.physletb.2017.05.060",

language = "English",

volume = "771",

pages = "467--481",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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Adam, J, Adamova, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Christiansen, P, Ljunggren, M, Oskarsson, A, Richert, T, Silvermyr, D , Stenlund, E, Vislavicius, V & ALICE Collaboration 2017, 'Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 771, pp. 467-481. https://doi.org/10.1016/j.physletb.2017.05.060

TY - JOUR

T1 - Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV

AU - Adam, J.

AU - Adamova, D.

AU - Aggarwal, M.M

AU - Aglieri Rinella, G

AU - Agnello, M.

AU - Agrawal, N

AU - Christiansen, Peter

AU - Ljunggren, Martin

AU - Oskarsson, Anders

AU - Richert, Tuva

AU - Silvermyr, David

AU - Stenlund, Evert

AU - Vislavicius, Vytautas

AU - ALICE Collaboration

N1 - Export Date: 3 July 2017

PY - 2017

Y1 - 2017

N2 - Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy sNN=2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3<pT<18 GeV/c. The RAA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi-peripheral (50–80%) collisions is observed. The suppression of electrons in this broad pT interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC. © 2017 The Author

AB - Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy sNN=2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3<pT<18 GeV/c. The RAA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi-peripheral (50–80%) collisions is observed. The suppression of electrons in this broad pT interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC. © 2017 The Author

U2 - 10.1016/j.physletb.2017.05.060

DO - 10.1016/j.physletb.2017.05.060

M3 - Article

SN - 0370-2693

VL - 771

SP - 467

EP - 481

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics