The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum ( pT ) in minimum-bias pâPb collisions at sNN=5.02Â TeV using the ALICE detector at the LHC. The measurement covers the pT interval 0.5&lt;pT&lt;12Â GeV/c and the rapidity range â1.065&lt;ycms&lt;0.135 in the centre-of-mass reference frame. The contribution of electrons from background sources was subtracted using an invariant mass approach. The nuclear modification factor RpPb was calculated by comparing the pT -differential invariant cross section in pâPb collisions to a pp reference at the same centre-of-mass energy, which was obtained by interpolating measurements at s=2.76Â TeV and s=7Â TeV . The RpPb is consistent with unity within uncertainties of about 25%, which become larger for pT below 1Â GeV/c . The measurement shows that heavy-flavour production is consistent with binary scaling, so that a suppression in the high- pT yield in PbâPb collisions has to be attributed to effects induced by the hot medium produced in the final state. The data in pâPb collisions are described by recent model calculations that include cold nuclear matter effects.

Czechia

J. Adam

D. Adamová

India

M.M. Aggarwal

CERN

G. Aglieri Rinella

Italy

M. Agnello

N. Agrawal

Z. Ahammed

South Korea

S.U. Ahn

United States

S. Aiola

Russia

A. Akindinov

S.N. Alam

D. Aleksandrov

B. Alessandro

United Kingdom

D. Alexandre

Mexico

R. Alfaro Molina

A. Alici

Ukraine

A. Alkin

J.R.M. Almaraz

Norway

J. Alme

Germany

T. Alt

S. Altinpinar

I. Altsybeev

Brazil

C. Alves Garcia Prado

Romania

C. Andrei

A. Andronic

V. Anguelov

J. Anielski

Croatia

T. Antičić

F. Antinori

P. Antonioli

France

L. Aphecetche

H. Appelshäuser

S. Arcelli

R. Arnaldi

O.W. Arnold

I.C. Arsene

M. Arslandok

B. Audurier

A. Augustinus

R. Averbeck

M.D. Azmi

A. BadalÃ

Y.W. Baek

S. Bagnasco

R. Bailhache

R. Bala

A. Baldisseri

R.C. Baral

A.M. Barbano

R. Barbera

F. Barile

Hungary

G.G. Barnaföldi

L.S. Barnby

V. Barret

China

P. Bartalini

K. Barth

Poland

J. Bartke

E. Bartsch

M. Basile

N. Bastid

S. Basu

B. Bathen

G. Batigne

A. Batista Camejo

JINR

B. Batyunya

P.C. Batzing

Denmark

I.G. Bearden

H. Beck

C. Bedda

N.K. Behera

I. Belikov

F. Bellini

H. Bello Martinez

R. Bellwied

R. Belmont

E. Belmont-Moreno

V. Belyaev

G. Bencedi

S. Beole

I. Berceanu

A. Bercuci

Y. Berdnikov

D. Berenyi

Netherlands

R.A. Bertens

D. Berzano

L. Betev

A. Bhasin

I.R. Bhat

A.K. Bhati

B. Bhattacharjee

Japan

J. Bhom

L. Bianchi

N. Bianchi

C. Bianchin

J. Bielčík

J. Bielčíková

A. Bilandzic

R. Biswas

S. Biswas

S. Bjelogrlic

Measurement of electrons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02TeV