Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV.
Charged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at square root of s = 7 TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit pairs, and f...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1826265965378142208 |
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| author | Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hänsel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R |
| author_facet | Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hänsel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R |
| author_sort | Khachatryan, V |
| collection | OXFORD |
| description | Charged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at square root of s = 7 TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit pairs, and fully reconstructed charged-particle tracks. The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity dN(ch)/dη|(|η|<0.5) = 5.78 ± 0.01(stat) ± 0.23(syst) for non-single-diffractive events, higher than predicted by commonly used models. The relative increase in charged-particle multiplicity from square root of s = 0.9 to 7 TeV is [66.1 ± 1.0(stat) ± 4.2(syst)]%. The mean transverse momentum is measured to be 0.545 ± 0.005(stat) ± 0.015(syst) GeV/c. The results are compared with similar measurements at lower energies. |
| first_indexed | 2024-03-06T20:31:48Z |
| format | Journal article |
| id | oxford-uuid:314e889b-c655-43fc-9196-31431eb3bac2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:31:48Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:314e889b-c655-43fc-9196-31431eb3bac22022-03-26T13:07:08ZTransverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:314e889b-c655-43fc-9196-31431eb3bac2EnglishSymplectic Elements at Oxford2010Khachatryan, VSirunyan, ATumasyan, AAdam, WBergauer, TDragicevic, MErö, JFabjan, CFriedl, MFrühwirth, RGhete, VHammer, JHänsel, SHoch, MHörmann, NHrubec, JJeitler, MKasieczka, GKiesenhofer, WKrammer, MLiko, DMikulec, IPernicka, MRohringer, HSchöfbeck, RCharged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at square root of s = 7 TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit pairs, and fully reconstructed charged-particle tracks. The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity dN(ch)/dη|(|η|<0.5) = 5.78 ± 0.01(stat) ± 0.23(syst) for non-single-diffractive events, higher than predicted by commonly used models. The relative increase in charged-particle multiplicity from square root of s = 0.9 to 7 TeV is [66.1 ± 1.0(stat) ± 4.2(syst)]%. The mean transverse momentum is measured to be 0.545 ± 0.005(stat) ± 0.015(syst) GeV/c. The results are compared with similar measurements at lower energies. |
| spellingShingle | Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hänsel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. |
| title | Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. |
| title_full | Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. |
| title_fullStr | Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. |
| title_full_unstemmed | Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. |
| title_short | Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. |
| title_sort | transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s 7 tev |
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