Title
Production of 4He and He‾4 in Pb–Pb collisions at sNN=2.76TeV at the LHC
Date Issued
01 March 2018
Access level
open access
Resource Type
journal article
Author(s)
Acharya S.
Adamová D.
Adolfsson J.
Aggarwal M.M.
Aglieri Rinella G.
Agnello M.
Agrawal N.
Ahammed Z.
Ahn S.U.
Aiola S.
Akindinov A.
Al-Turany M.
Alam S.N.
Albuquerque D.S.D.
Aleksandrov D.
Alessandro B.
Alfaro Molina R.
Ali Y.
Alici A.
Alkin A.
Alme J.
Alt T.
Altenkamper L.
Altsybeev I.
Alves Garcia Prado C.
Andrei C.
Andreou D.
Andrews H.A.
Andronic A.
Anguelov V.
Anson C.
Antičić T.
Antinori F.
Antonioli P.
Aphecetche L.
Appelshäuser H.
Arcelli S.
Arnaldi R.
Arnold O.W.
Arsene I.C.
Arslandok M.
Audurier B.
Augustinus A.
Averbeck R.
Azmi M.D.
Badalà A.
Baek Y.W.
Bagnasco S.
Bailhache R.
Bala R.
Baldisseri A.
Ball M.
Baral R.C.
Barbano A.M.
Barbera R.
Barile F.
Barioglio L.
Barnaföldi G.G.
Barnby L.S.
Barret V.
Bartalini P.
Barth K.
Bartsch E.
Bastid N.
Basu S.
Batigne G.
Batyunya B.
Batzing P.C.
Bearden I.G.
Beck H.
Bedda C.
Behera N.K.
Belikov I.
Bellini F.
Bello Martinez H.
Bellwied R.
Beltran L.G.E.
Belyaev V.
Bencedi G.
Beole S.
Bercuci A.
Berdnikov Y.
Berenyi D.
Bertens R.A.
Berzano D.
Betev L.
Bhasin A.
Bhat I.R.
Bhattacharjee B.
Bhom J.
Bianchi A.
Bianchi L.
Bianchi N.
Bianchin C.
Bielčík J.
Bielčíková J.
Bilandzic A.
Biro G.
Biswas R.
Bose Institute
Publisher(s)
Elsevier B.V.
Abstract
Results on the production of 4He and He‾4 nuclei in Pb–Pb collisions at sNN=2.76TeV in the rapidity range |y|<1, using the ALICE detector, are presented in this paper. The rapidity densities corresponding to 0–10% central events are found to be dN/dyHe4=(0.8±0.4(stat)±0.3(syst))×10−6 and dN/dyHe‾4=(1.1±0.4(stat)±0.2(syst))×10−6, respectively. This is in agreement with the statistical thermal model expectation assuming the same chemical freeze-out temperature (Tchem=156MeV) as for light hadrons. The measured ratio of He‾4/4He is 1.4±0.8(stat)±0.5(syst).
Start page
1
End page
20
Volume
971
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Astronomía
Subjects
Scopus EID
2-s2.0-85053489326
Source
Nuclear Physics A
ISSN of the container
03759474
Sponsor(s)
National Science Foundation - 1719759
Science and Technology Facilities Council - 1843572
Japan Society for the Promotion of Science - 15H03664, 17H01122
Sources of information:
Directorio de Producción Científica
Scopus