Relative particle yield fluctuations in Pb--Pb collisions at √sNN=2.76TeV
(2019) In European Physical Journal C 79(3).- Abstract
- First results on K / π, p / π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb--Pb collisions at sNN=2.76TeV. The observable ν dyn , which is defined in terms of the moments of particle multiplicity distributions, is used to quantify the magnitude of dynamical fluctuations of relative particle yields and also provides insight into the correlation between particle pairs. This study is based on a novel experimental technique, called the Identity Method, which allows one to measure the moments of multiplicity distributions in case of incomplete particle identification. The results for p / π show a change of sign in ν dyn from positive to negative towards more peripheral collisions.... (More)
- First results on K / π, p / π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb--Pb collisions at sNN=2.76TeV. The observable ν dyn , which is defined in terms of the moments of particle multiplicity distributions, is used to quantify the magnitude of dynamical fluctuations of relative particle yields and also provides insight into the correlation between particle pairs. This study is based on a novel experimental technique, called the Identity Method, which allows one to measure the moments of multiplicity distributions in case of incomplete particle identification. The results for p / π show a change of sign in ν dyn from positive to negative towards more peripheral collisions. For central collisions, the results follow the smooth trend of the data at lower energies and ν dyn exhibits a change in sign for p / π and K/p. © 2019, CERN for the benefit of the ALICE collaboration. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/ca21ca19-5d35-437d-a965-0de128480a18
- author
- Acharya, S ; Adolfsson, Jonatan LU ; Christiansen, Peter LU ; Oskarsson, Anders LU ; Richert, Tuva LU ; Silvermyr, David LU ; Stenlund, Evert LU ; Vislavicius, Vytautas LU and Zou, S.
- author collaboration
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 79
- issue
- 3
- article number
- 236
- publisher
- Springer
- external identifiers
-
- scopus:85062941460
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-019-6711-x
- language
- English
- LU publication?
- yes
- additional info
- Export Date: 28 March 2019
- id
- ca21ca19-5d35-437d-a965-0de128480a18
- date added to LUP
- 2019-03-28 13:05:16
- date last changed
- 2023-04-09 06:20:43
@article{ca21ca19-5d35-437d-a965-0de128480a18, abstract = {{First results on K / π, p / π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb--Pb collisions at sNN=2.76TeV. The observable ν dyn , which is defined in terms of the moments of particle multiplicity distributions, is used to quantify the magnitude of dynamical fluctuations of relative particle yields and also provides insight into the correlation between particle pairs. This study is based on a novel experimental technique, called the Identity Method, which allows one to measure the moments of multiplicity distributions in case of incomplete particle identification. The results for p / π show a change of sign in ν dyn from positive to negative towards more peripheral collisions. For central collisions, the results follow the smooth trend of the data at lower energies and ν dyn exhibits a change in sign for p / π and K/p. © 2019, CERN for the benefit of the ALICE collaboration.}}, author = {{Acharya, S and Adolfsson, Jonatan and Christiansen, Peter and Oskarsson, Anders and Richert, Tuva and Silvermyr, David and Stenlund, Evert and Vislavicius, Vytautas and Zou, S.}}, issn = {{1434-6044}}, language = {{eng}}, number = {{3}}, publisher = {{Springer}}, series = {{European Physical Journal C}}, title = {{Relative particle yield fluctuations in Pb--Pb collisions at √sNN=2.76TeV}}, url = {{http://dx.doi.org/10.1140/epjc/s10052-019-6711-x}}, doi = {{10.1140/epjc/s10052-019-6711-x}}, volume = {{79}}, year = {{2019}}, }