Please use this identifier to cite or link to this item: http://localhost:80/handle/1956/4579
Title: Charged-particle multiplicity measurement in proton–proton collisions at √s = 7 TeV with ALICE at LHC
subject: VDP::Mathematics and natural science: 400
Publisher: Springer
Description: There are 1056 authors. Only a few of them have been given the author entries in addition to the Collaboration
Journal Article
The pseudorapidity density and multiplicity distribution of charged particles produced in proton–proton collisions at the LHC, at a centre-of-mass energy Ös=7s=7 TeV, were measured in the central pseudorapidity region |η|<1. Comparisons are made with previous measurements at Ös=0.9s=09 TeV and 2.36 TeV. At Ös=7s=7 TeV, for events with at least one charged particle in |η|<1, we obtain dNch/dh = 6.01±0.01(stat.)+0.20-0.12(syst.)dNchd=601001(stat)+020−012(syst). This corresponds to an increase of 57.6%±0.4%(stat.)+3.6-1.8%(syst.)576%04%(stat)+36−18%(syst) relative to collisions at 0.9 TeV, significantly higher than calculations from commonly used models. The multiplicity distribution at 7 TeV is described fairly well by the negative binomial distribution.
publishedVersion
URI: http://localhost:80/handle/1956/4579
More Information: The European Physical Journal C 68: 345-354
http://hdl.handle.net/1956/4579
10.1140/epjc/s10052-010-1350-2
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Title: Charged-particle multiplicity measurement in proton–proton collisions at √s = 7 TeV with ALICE at LHC
subject: VDP::Mathematics and natural science: 400
Publisher: Springer
Description: There are 1056 authors. Only a few of them have been given the author entries in addition to the Collaboration
Journal Article
The pseudorapidity density and multiplicity distribution of charged particles produced in proton–proton collisions at the LHC, at a centre-of-mass energy Ös=7s=7 TeV, were measured in the central pseudorapidity region |η|<1. Comparisons are made with previous measurements at Ös=0.9s=09 TeV and 2.36 TeV. At Ös=7s=7 TeV, for events with at least one charged particle in |η|<1, we obtain dNch/dh = 6.01±0.01(stat.)+0.20-0.12(syst.)dNchd=601001(stat)+020−012(syst). This corresponds to an increase of 57.6%±0.4%(stat.)+3.6-1.8%(syst.)576%04%(stat)+36−18%(syst) relative to collisions at 0.9 TeV, significantly higher than calculations from commonly used models. The multiplicity distribution at 7 TeV is described fairly well by the negative binomial distribution.
publishedVersion
URI: http://localhost:80/handle/1956/4579
More Information: The European Physical Journal C 68: 345-354
http://hdl.handle.net/1956/4579
10.1140/epjc/s10052-010-1350-2
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Title: Charged-particle multiplicity measurement in proton–proton collisions at √s = 7 TeV with ALICE at LHC
subject: VDP::Mathematics and natural science: 400
Publisher: Springer
Description: There are 1056 authors. Only a few of them have been given the author entries in addition to the Collaboration
Journal Article
The pseudorapidity density and multiplicity distribution of charged particles produced in proton–proton collisions at the LHC, at a centre-of-mass energy Ös=7s=7 TeV, were measured in the central pseudorapidity region |η|<1. Comparisons are made with previous measurements at Ös=0.9s=09 TeV and 2.36 TeV. At Ös=7s=7 TeV, for events with at least one charged particle in |η|<1, we obtain dNch/dh = 6.01±0.01(stat.)+0.20-0.12(syst.)dNchd=601001(stat)+020−012(syst). This corresponds to an increase of 57.6%±0.4%(stat.)+3.6-1.8%(syst.)576%04%(stat)+36−18%(syst) relative to collisions at 0.9 TeV, significantly higher than calculations from commonly used models. The multiplicity distribution at 7 TeV is described fairly well by the negative binomial distribution.
publishedVersion
URI: http://localhost:80/handle/1956/4579
More Information: The European Physical Journal C 68: 345-354
http://hdl.handle.net/1956/4579
10.1140/epjc/s10052-010-1350-2
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.