Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC
The first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse m...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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ELSEVIER SCIENCE BV
2010
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| _version_ | 1797089610500669440 |
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| author | Aad, G Abat, E Abbott, B Abdallah, J Abdelalim, A Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, B Ackers, M Adams, D Addy, T Adelman, J Aderholz, M Adorisio, C Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, J Aharrouche, M Ahlen, S |
| author_facet | Aad, G Abat, E Abbott, B Abdallah, J Abdelalim, A Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, B Ackers, M Adams, D Addy, T Adelman, J Aderholz, M Adorisio, C Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, J Aharrouche, M Ahlen, S |
| author_sort | Aad, G |
| collection | OXFORD |
| description | The first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity. and the relationship between mean transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range vertical bar eta vertical bar < 2.5 and P-T > 500 MeV. The measurements are compared to Monte Carlo models of proton-proton collisions and to results from other experiments at the same centre-of-mass energy. The charged-particle multiplicity per event and unit of pseudorapidity eta = 0 is measured to be 1.333 +/- 0.003(stat.) +/- 0.040(syst.), which is 5-15% higher than the Monte Carlo models predict. (C) 2010 Published by Elsevier B.V. |
| first_indexed | 2024-03-07T03:06:31Z |
| format | Journal article |
| id | oxford-uuid:b2b9cc79-37c3-4ece-8b3a-7cbacf786d40 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:06:31Z |
| publishDate | 2010 |
| publisher | ELSEVIER SCIENCE BV |
| record_format | dspace |
| spelling | oxford-uuid:b2b9cc79-37c3-4ece-8b3a-7cbacf786d402022-03-27T04:13:47ZCharged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHCJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b2b9cc79-37c3-4ece-8b3a-7cbacf786d40EnglishSymplectic Elements at OxfordELSEVIER SCIENCE BV2010Aad, GAbat, EAbbott, BAbdallah, JAbdelalim, AAbdesselam, AAbdinov, OAbi, BAbolins, MAbramowicz, HAbreu, HAcerbi, EAcharya, BAckers, MAdams, DAddy, TAdelman, JAderholz, MAdorisio, CAdragna, PAdye, TAefsky, SAguilar-Saavedra, JAharrouche, MAhlen, SThe first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity. and the relationship between mean transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range vertical bar eta vertical bar < 2.5 and P-T > 500 MeV. The measurements are compared to Monte Carlo models of proton-proton collisions and to results from other experiments at the same centre-of-mass energy. The charged-particle multiplicity per event and unit of pseudorapidity eta = 0 is measured to be 1.333 +/- 0.003(stat.) +/- 0.040(syst.), which is 5-15% higher than the Monte Carlo models predict. (C) 2010 Published by Elsevier B.V. |
| spellingShingle | Aad, G Abat, E Abbott, B Abdallah, J Abdelalim, A Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, B Ackers, M Adams, D Addy, T Adelman, J Aderholz, M Adorisio, C Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, J Aharrouche, M Ahlen, S Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC |
| title | Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC |
| title_full | Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC |
| title_fullStr | Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC |
| title_full_unstemmed | Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC |
| title_short | Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC |
| title_sort | charged particle multiplicities in pp interactions at root s 900 gev measured with the atlas detector at the lhc |
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