Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV
The Υ(1S), Υ(2S), and Υ(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8±1.4pb-1 of proton-proton collisions at s=7TeV, collected with the CMS detector at the LHC. The Υ resonances are identified through their decays to dimuons. Integra...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Published: |
2013
|
| _version_ | 1826296772529487872 |
|---|---|
| author | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Eroe, J Fabjan, C Friedl, M Fruehwirth, R Ghete, V Hoermann, N Hrubec, J Jeitler, M Kiesenhofer, W Knuenz, V Krammer, M Kraetschmer, I Liko, D Mikulec, I Pernicka, M Rabady, D Rahbaran, B |
| author_facet | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Eroe, J Fabjan, C Friedl, M Fruehwirth, R Ghete, V Hoermann, N Hrubec, J Jeitler, M Kiesenhofer, W Knuenz, V Krammer, M Kraetschmer, I Liko, D Mikulec, I Pernicka, M Rabady, D Rahbaran, B |
| author_sort | Chatrchyan, S |
| collection | OXFORD |
| description | The Υ(1S), Υ(2S), and Υ(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8±1.4pb-1 of proton-proton collisions at s=7TeV, collected with the CMS detector at the LHC. The Υ resonances are identified through their decays to dimuons. Integrated over the Υ transverse momentum range pTΥ<50GeV/c and rapidity range |yΥ|<2.4, and assuming unpolarized Υ production, the products of the Υ production cross sections and dimuon branching fractions areσ(pp→Υ(1S)X)B(Υ(1S)→μ+μ-)=(8.55 0.05-0.50+0.56±0.34)nb,σ(pp→Υ(2S)X)B(Υ(2S) →μ+μ-)=(2.21±0.03-0.14+0.16±0.09)nb,σ(pp→Υ(3S)X)B(Υ(3S)→μ+μ-)=(1.11±0.02-0.08+0. 10±0.04)nb, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty in the integrated luminosity. The differential cross sections in bins of transverse momentum and rapidity, and the cross section ratios are presented. Cross section measurements performed within a restricted muon kinematic range and not corrected for acceptance are also provided. These latter measurements are independent of Υ polarization assumptions. The results are compared to theoretical predictions and previous measurements. © 2013 CERN. |
| first_indexed | 2024-03-07T04:21:29Z |
| format | Journal article |
| id | oxford-uuid:cb2c777b-588a-48ad-af87-0777c50d0af1 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T04:21:29Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:cb2c777b-588a-48ad-af87-0777c50d0af12022-03-27T07:13:00ZMeasurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cb2c777b-588a-48ad-af87-0777c50d0af1Symplectic Elements at Oxford2013Chatrchyan, SKhachatryan, VSirunyan, ATumasyan, AAdam, WAguilo, EBergauer, TDragicevic, MEroe, JFabjan, CFriedl, MFruehwirth, RGhete, VHoermann, NHrubec, JJeitler, MKiesenhofer, WKnuenz, VKrammer, MKraetschmer, ILiko, DMikulec, IPernicka, MRabady, DRahbaran, BThe Υ(1S), Υ(2S), and Υ(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8±1.4pb-1 of proton-proton collisions at s=7TeV, collected with the CMS detector at the LHC. The Υ resonances are identified through their decays to dimuons. Integrated over the Υ transverse momentum range pTΥ<50GeV/c and rapidity range |yΥ|<2.4, and assuming unpolarized Υ production, the products of the Υ production cross sections and dimuon branching fractions areσ(pp→Υ(1S)X)B(Υ(1S)→μ+μ-)=(8.55 0.05-0.50+0.56±0.34)nb,σ(pp→Υ(2S)X)B(Υ(2S) →μ+μ-)=(2.21±0.03-0.14+0.16±0.09)nb,σ(pp→Υ(3S)X)B(Υ(3S)→μ+μ-)=(1.11±0.02-0.08+0. 10±0.04)nb, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty in the integrated luminosity. The differential cross sections in bins of transverse momentum and rapidity, and the cross section ratios are presented. Cross section measurements performed within a restricted muon kinematic range and not corrected for acceptance are also provided. These latter measurements are independent of Υ polarization assumptions. The results are compared to theoretical predictions and previous measurements. © 2013 CERN. |
| spellingShingle | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Eroe, J Fabjan, C Friedl, M Fruehwirth, R Ghete, V Hoermann, N Hrubec, J Jeitler, M Kiesenhofer, W Knuenz, V Krammer, M Kraetschmer, I Liko, D Mikulec, I Pernicka, M Rabady, D Rahbaran, B Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV |
| title | Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV |
| title_full | Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV |
| title_fullStr | Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV |
| title_full_unstemmed | Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV |
| title_short | Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV |
| title_sort | measurement of the upsilon 1s upsilon 2s and upsilon 3s cross sections in pp collisions at root s 7 tev |
| work_keys_str_mv | AT chatrchyans measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT khachatryanv measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT sirunyana measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT tumasyana measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT adamw measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT aguiloe measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT bergauert measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT dragicevicm measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT eroej measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT fabjanc measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT friedlm measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT fruehwirthr measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT ghetev measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT hoermannn measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT hrubecj measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT jeitlerm measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT kiesenhoferw measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT knuenzv measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT krammerm measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT kraetschmeri measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT likod measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT mikuleci measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT pernickam measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT rabadyd measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev AT rahbaranb measurementoftheupsilon1supsilon2sandupsilon3scrosssectionsinppcollisionsatroots7tev |