Please use this identifier to cite or link to this item: http://localhost:80/handle/1956/4580
Title: Charged-particle multiplicity measurement in proton–proton collisions at √s = 0.9 and 2.36 TeV with ALICE at LHC
subject: VDP::Mathematics and natural science: 400
Publisher: Springer
Description: There are 1058 authors. Only a few of them have been given author entries in addition to the Collaboration.
Journal Article
This publication is dedicated to the memory of our colleague Hans-Åke Gustafsson.
Charged-particle production was studied in proton–proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range |η|<1.4. In the central region (|η|<0.5), at 0.9 TeV, we measure charged-particle pseudorapidity density dNch/dh = 3.02±0.01(stat.)+0.08-0.05(syst.)dNchd=302001(stat)+008−005(syst) for inelastic interactions, and dNch/dh = 3.58±0.01(stat.)+0.12-0.12(syst.)dNchd=358001(stat)+012−012(syst) for non-single-diffractive interactions. At 2.36 TeV, we find dNch/dh = 3.77±0.01(stat.)+0.25-0.12(syst.)dNchd=377001(stat)+025−012(syst) for inelastic, and dNch/dh = 4.43±0.01(stat.)+0.17-0.12(syst.)dNchd=443001(stat)+017−012(syst) for non-single-diffractive collisions. The relative increase in charged-particle multiplicity from the lower to higher energy is 24.7%±0.5%(stat.)+5.7-2.8%(syst.)247%05%(stat)+57−28%(syst) for inelastic and 23.7%±0.5%(stat.)+4.6-1.1%(syst.)237%05%(stat)+46−11%(syst) for non-single-diffractive interactions. This increase is consistent with that reported by the CMS collaboration for non-single-diffractive events and larger than that found by a number of commonly used models. The multiplicity distribution was measured in different pseudorapidity intervals and studied in terms of KNO variables at both energies. The results are compared to proton–antiproton data and to model predictions.
publishedVersion
URI: http://localhost:80/handle/1956/4580
More Information: The European Physical Journal C 68: 89-108
http://hdl.handle.net/1956/4580
10.1140/epjc/s10052-010-1339-x
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 = 0.9 and 2.36 TeV with ALICE at LHC
subject: VDP::Mathematics and natural science: 400
Publisher: Springer
Description: There are 1058 authors. Only a few of them have been given author entries in addition to the Collaboration.
Journal Article
This publication is dedicated to the memory of our colleague Hans-Åke Gustafsson.
Charged-particle production was studied in proton–proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range |η|<1.4. In the central region (|η|<0.5), at 0.9 TeV, we measure charged-particle pseudorapidity density dNch/dh = 3.02±0.01(stat.)+0.08-0.05(syst.)dNchd=302001(stat)+008−005(syst) for inelastic interactions, and dNch/dh = 3.58±0.01(stat.)+0.12-0.12(syst.)dNchd=358001(stat)+012−012(syst) for non-single-diffractive interactions. At 2.36 TeV, we find dNch/dh = 3.77±0.01(stat.)+0.25-0.12(syst.)dNchd=377001(stat)+025−012(syst) for inelastic, and dNch/dh = 4.43±0.01(stat.)+0.17-0.12(syst.)dNchd=443001(stat)+017−012(syst) for non-single-diffractive collisions. The relative increase in charged-particle multiplicity from the lower to higher energy is 24.7%±0.5%(stat.)+5.7-2.8%(syst.)247%05%(stat)+57−28%(syst) for inelastic and 23.7%±0.5%(stat.)+4.6-1.1%(syst.)237%05%(stat)+46−11%(syst) for non-single-diffractive interactions. This increase is consistent with that reported by the CMS collaboration for non-single-diffractive events and larger than that found by a number of commonly used models. The multiplicity distribution was measured in different pseudorapidity intervals and studied in terms of KNO variables at both energies. The results are compared to proton–antiproton data and to model predictions.
publishedVersion
URI: http://localhost:80/handle/1956/4580
More Information: The European Physical Journal C 68: 89-108
http://hdl.handle.net/1956/4580
10.1140/epjc/s10052-010-1339-x
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 = 0.9 and 2.36 TeV with ALICE at LHC
subject: VDP::Mathematics and natural science: 400
Publisher: Springer
Description: There are 1058 authors. Only a few of them have been given author entries in addition to the Collaboration.
Journal Article
This publication is dedicated to the memory of our colleague Hans-Åke Gustafsson.
Charged-particle production was studied in proton–proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range |η|<1.4. In the central region (|η|<0.5), at 0.9 TeV, we measure charged-particle pseudorapidity density dNch/dh = 3.02±0.01(stat.)+0.08-0.05(syst.)dNchd=302001(stat)+008−005(syst) for inelastic interactions, and dNch/dh = 3.58±0.01(stat.)+0.12-0.12(syst.)dNchd=358001(stat)+012−012(syst) for non-single-diffractive interactions. At 2.36 TeV, we find dNch/dh = 3.77±0.01(stat.)+0.25-0.12(syst.)dNchd=377001(stat)+025−012(syst) for inelastic, and dNch/dh = 4.43±0.01(stat.)+0.17-0.12(syst.)dNchd=443001(stat)+017−012(syst) for non-single-diffractive collisions. The relative increase in charged-particle multiplicity from the lower to higher energy is 24.7%±0.5%(stat.)+5.7-2.8%(syst.)247%05%(stat)+57−28%(syst) for inelastic and 23.7%±0.5%(stat.)+4.6-1.1%(syst.)237%05%(stat)+46−11%(syst) for non-single-diffractive interactions. This increase is consistent with that reported by the CMS collaboration for non-single-diffractive events and larger than that found by a number of commonly used models. The multiplicity distribution was measured in different pseudorapidity intervals and studied in terms of KNO variables at both energies. The results are compared to proton–antiproton data and to model predictions.
publishedVersion
URI: http://localhost:80/handle/1956/4580
More Information: The European Physical Journal C 68: 89-108
http://hdl.handle.net/1956/4580
10.1140/epjc/s10052-010-1339-x
Appears in Collections:Department of Earth Science

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