Measurements of the ϒ(1S), ϒ(2S), and ϒ(3S) differential cross sections in pp collisions at √<i>s</i>= 7 TeV

Khachatryan, V; Sirunyan, AM; Tumasyan, A; Adam, W; Bergauer, T; Dragicevic, M; Erö, J; Friedl, M; Frühwirth, R; Frühwirth, R; Ghete, VM; Dobur, D; Favart, L; Perniè, L; Hobson, PR; Gay, APR; Grebenyuk, A; Seva, T; Léonard, A; Mohammadi, A; Perniè, L; Wang, J; Turner, M; Randle-conde, A; Cole, JE; Reis, T; Thomas, L; Van der Velde, C; Vanlaer, P; Reid, ID; Teodorescu, L; Zenoni, F; Adler, V; Beernaert, K; Leslie, D; Benucci, L; Cimmino, A; Teodorescu, L; Kyberd, P; Costantini, S; Crucy, S; Dildick, S; Fagot, A; Garcia, G; Mccartin, J; Ocampo Rios, AA; Hobson, PR; Poyraz, D; Ryckbosch, D; Khan, A; Salva Diblen, S; Kiesenhofer, W; Symonds, P; Cole, JE; Hartl, C; Krammer, M; Hörmann, N; Hrubec, J; Jeitler, M; Jeitler, M; Knünz, V; Krammer, M; Mikulec, I; Krätschmer, I; Liko, D; Reid, ID; Rabady, D; Rabady, D; Shumeiko, N; Rahbaran, B; Rohringer, H; Schöfbeck, R; Suarez Gonzalez, J; Strauss, J; Treberer-Treberspurg, W; Waltenberger, W; Wulz, CE; Wulz, CE; Mossolov, V; Leslie, D; Alderweireldt, S; Bansal, S; Cornelis, T; De Wolf, EA; Janssen, X; Van Haevermaet, H; Knutsson, A; Lauwers, J; Luyckx, S; Blekman, F; Rougny, R; Ochesanu, S; Leggat, D; Van De Klundert, M; Van Mechelen, P; Van Remortel, N; Van Spilbeeck, A; Blyweert, S; D'Hondt, J; Daci, N; Heracleous, N; Kyberd, P; Van Doninck, W; Keaveney, J; Lowette, S; Maes, M; Villella, I; Olbrechts, A; Python, Q; Strom, D; Tavernier, S; Khan, A; Van Mulders, P; Van Onsem, GP; Caillol, C; Clerbaux, B; De Lentdecker, G

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/11278

Title:	Measurements of the ϒ(1S), ϒ(2S), and ϒ(3S) differential cross sections in pp collisions at √<i>s</i>= 7 TeV
Authors:	Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Friedl, M Frühwirth, R Frühwirth, R Ghete, VM Dobur, D Favart, L Perniè, L Hobson, PR Gay, APR Grebenyuk, A Seva, T Léonard, A Mohammadi, A Perniè, L Wang, J Turner, M Randle-conde, A Cole, JE Reis, T Thomas, L Van der Velde, C Vanlaer, P Reid, ID Teodorescu, L Zenoni, F Adler, V Beernaert, K Leslie, D Benucci, L Cimmino, A Teodorescu, L Kyberd, P Costantini, S Crucy, S Dildick, S Fagot, A Garcia, G Mccartin, J Ocampo Rios, AA Hobson, PR Poyraz, D Ryckbosch, D Khan, A Salva Diblen, S Kiesenhofer, W Symonds, P Cole, JE Hartl, C Krammer, M Hörmann, N Hrubec, J Jeitler, M Jeitler, M Knünz, V Krammer, M Mikulec, I Krätschmer, I Liko, D Reid, ID Rabady, D Rabady, D Shumeiko, N Rahbaran, B Rohringer, H Schöfbeck, R Suarez Gonzalez, J Strauss, J Treberer-Treberspurg, W Waltenberger, W Wulz, CE Wulz, CE Mossolov, V Leslie, D Alderweireldt, S Bansal, S Cornelis, T De Wolf, EA Janssen, X Van Haevermaet, H Knutsson, A Lauwers, J Luyckx, S Blekman, F Rougny, R Ochesanu, S Leggat, D Van De Klundert, M Van Mechelen, P Van Remortel, N Van Spilbeeck, A Blyweert, S D'Hondt, J Daci, N Heracleous, N Kyberd, P Van Doninck, W Keaveney, J Lowette, S Maes, M Villella, I Olbrechts, A Python, Q Strom, D Tavernier, S Khan, A Van Mulders, P Van Onsem, GP Caillol, C Clerbaux, B De Lentdecker, G
Keywords:	CMS;Upsilon;B-Physics;Cross section
Issue Date:	22-Jul-2015
Publisher:	Elsevier
Citation:	Khachatryan, V., Sirunyan, A.M., Tumasyan, A. et al. for the benefit of the CMS Collaboration (2015) 'Measurements of the ϒ(1S), ϒ(2S), and ϒ(3S) differential cross sections in pp collisions at √<i>s</i>= 7 TeV', Physics Letters B, 749, pp. 14 - 34. doi: 10.1016/j.physletb.2015.07.037.
Abstract:	Differential cross sections as a function of transverse momentum p<inf>T</inf> are presented for the production of ϒ(nS) (n = 1, 2, 3) states decaying into a pair of muons. Data corresponding to an integrated luminosity of 4.9fb<sup>-1</sup> in pp collisions at s=7TeV were collected with the CMS detector at the LHC. The analysis selects events with dimuon rapidity \|y\|<1.2 and dimuon transverse momentum in the range 10<p<inf>T</inf><100GeV. The measurements show a transition from an exponential to a power-law behavior at p<inf>T</inf>≈ 20 GeV for the three ϒ states. Above that transition, the ϒ(3S) spectrum is significantly harder than that of the ϒ(1S). The ratios of the ϒ(3S) and ϒ(2S) differential cross sections to the ϒ(1S) cross section show a rise as p<inf>T</inf> increases at low p<inf>T</inf>, then become flatter at higher p<inf>T</inf>.
URI:	https://bura.brunel.ac.uk/handle/2438/11278
DOI:	https://doi.org/10.1016/j.physletb.2015.07.037
ISSN:	0370-2693
Appears in Collections:	Dept of Electronic and Electrical Engineering Research Papers

Files in This Item:

File	Description	Size	Format
Fulltext.pdf	Copyright © 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).	872.35 kB	Adobe PDF	View/Open

Show full item record

This item is licensed under a Creative Commons License