prikaz prve stranice dokumenta Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV
  Download
PDF 1.19 MB
Scientific paper - Original scientific paper
Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV
Journal of High Energy Physics, 2015 (2015), 5; 97. https://doi.org/10.1007/JHEP05(2015)097
(ALICE Collaboration) Adam, J.; , ; Antičić, Tome; , ; Mudnić, Eugen; , ; Planinić, Mirko; , ; Poljak, Nikola; , ; Simatović, Goran; , ; Utrobičić, Antonija; , ; Vicković, Linda; , ; Zyzak, M. More authors...

Cite this document

Adam, J., Antičić, T., Mudnić, E., Planinić, M., Poljak, N., Simatović, G. ... Zyzak, M. (2015). Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV. Journal of High Energy Physics, 2015. (5). doi: 10.1007/JHEP05(2015)097

Adam, J., et al. "Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV." Journal of High Energy Physics, vol. 2015, no. 5, 2015. https://doi.org/10.1007/JHEP05(2015)097

Adam, J., Tome Antičić, Eugen Mudnić, Mirko Planinić, Nikola Poljak, Goran Simatović, Antonija Utrobičić, Linda Vicković and M. Zyzak. "Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV." Journal of High Energy Physics 2015, no. 5 (2015). https://doi.org/10.1007/JHEP05(2015)097

Adam, J., et al. (2015) 'Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV', Journal of High Energy Physics, 2015(5). doi: 10.1007/JHEP05(2015)097

Adam J, Antičić T, Mudnić E, Planinić M, Poljak N, Simatović G, and sur.. Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV. Journal of High Energy Physics [Internet]. 2015 [cited 2023 June 06];2015(5). doi: 10.1007/JHEP05(2015)097

J. Adam, et al., "Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV", Journal of High Energy Physics, vol. 2015, no. 5, 2015. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:311831. [Accessed: 06 June 2023]

Please login to the repository to save this object to your list.
Metadata
Title (english)Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV
AuthorJ. Adam
Author
...
AuthorTome Antičić
Author
...
AuthorEugen Mudnić
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorGoran Simatović
Author
...
AuthorAntonija Utrobičić
Author
...
AuthorLinda Vicković
Author
...
AuthorM. Zyzak
CollaborationALICE Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The strength of forward-backward (FB) multiplicity correlations is measured by the ALICE detector in proton-proton (pp) collisions at √s = 0.9, 2.76 and 7 TeV. The measurement is performed in the central pseudorapidity region (|η| < 0.8) for the transverse momentum pT > 0.3 GeV/c. Two separate pseudorapidity windows of width (δη) ranging from 0.2 to 0.8 are chosen symmetrically around η = 0. The multiplicity correlation strength (bcorr) is studied as a function of the pseudorapidity gap (ηgap) between the two windows as well as the width of these windows. The correlation strength is found to decrease with increasing ηgap and shows a non-linear increase with δη. A sizable increase of the correlation strength with the collision energy, which cannot be explained exclusively by the increase of the mean multiplicity inside the windows, is observed. The correlation coefficient is also measured for multiplicities in different configurations of two azimuthal sectors selected within the symmetric FB η-windows. Two different contributions, the short-range (SR) and the long-range (LR), are observed. The energy dependence of bcorr is found to be weak for the SR component while it is strong for the LR component. Moreover, the correlation coefficient is studied for particles belonging to various transverse momentum intervals chosen to have the same mean multiplicity. Both SR and LR contributions to bcorr are found to increase with pT in this case. Results are compared to PYTHIA and PHOJET event generators and to a string-based phenomenological model. The observed dependencies of bcorr add new constraints on phenomenological models.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleJournal of High Energy Physics
Numberingvol. 2015, no. 5, 97
p-ISSN1126-6708
e-ISSN1029-8479
DOIhttps://doi.org/10.1007/JHEP05(2015)097
URN:NBNurn:nbn:hr:217:311831
Publication2015
Document URLhttps://link.springer.com/article/10.1007%2FJHEP05%282015%29097
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public noteOpen Access. © Copyright CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3. Received: February 3, 2015. Accepted: April 24, 2015. Published: May 20, 2015.
Created on2020-01-11 19:03:27