Measurement of the cross section ratio σ < inf > tt¯bb¯ < /inf > /σ < inf > tt¯jj < /inf >  in pp collisions at s=8 TeV

Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Knünz, V.; Krammer, M.; Krätschmer, I.; Liko, D.; Mikulec, I.; Rabady, D.; Rahbaran, B.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Treberer-Treberspurg, W.; Waltenberger, W.; Wulz, C. E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Alderweireldt, S.; Bansal, M.; Bansal, S.; Cornelis, T.; De Wolf, E. A.; Janssen, X.; Knutsson, A.; Luyckx, S.; Ochesanu, S.; Roland, B.; Rougny, R.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Blekman, F.; Blyweert, S.; D'Hondt, J.; Daci, N.; Heracleous, N.; Keaveney, J.; Lowette, S.; Maes, M.; Olbrechts, A.; Python, Q.; Strom, D.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Villella, I.; Caillol, C.; Clerbaux, B.; De Lentdecker, G.; Dobur, D.; Favart, L.; Gay, A. P.R.; Grebenyuk, A.; Léonard, A.; Mohammadi, A.; Perniè, L.; Reis, T.; Seva, T.; Thomas, L.; Vander Velde, C.; Vanlaer, P.; Wang, J.; Adler, V.; Beernaert, K.; Benucci, L.; Cimmino, A.; Costantini, S.; Crucy, S.; Dildick, S.; Fagot, A.; Garcia, G.; Mccartin, J.; Ocampo Rios, A. A.; Ryckbosch, D.; Salva Diblen, S.; Sigamani, M.; Strobbe, N.; Thyssen, F.; Tytgat, M.; Yazgan, E.; Zaganidis, N.

Measurement of the cross section ratio σ < inf > tt¯bb¯ < /inf > /σ < inf > tt¯jj < /inf > in pp collisions at s=8 TeV

dc.contributor.author	Khachatryan, V.
dc.contributor.author	Sirunyan, A. M.
dc.contributor.author	Tumasyan, A.
dc.contributor.author	Adam, W.
dc.contributor.author	Bergauer, T.
dc.contributor.author	Dragicevic, M.
dc.contributor.author	Erö, J.
dc.contributor.author	Fabjan, C.
dc.contributor.author	Friedl, M.
dc.contributor.author	Frühwirth, R.
dc.contributor.author	Ghete, V. M.
dc.contributor.author	Hartl, C.
dc.contributor.author	Hörmann, N.
dc.contributor.author	Hrubec, J.
dc.contributor.author	Jeitler, M.
dc.contributor.author	Kiesenhofer, W.
dc.contributor.author	Knünz, V.
dc.contributor.author	Krammer, M.
dc.contributor.author	Krätschmer, I.
dc.contributor.author	Liko, D.
dc.contributor.author	Mikulec, I.
dc.contributor.author	Rabady, D.
dc.contributor.author	Rahbaran, B.
dc.contributor.author	Rohringer, H.
dc.contributor.author	Schöfbeck, R.
dc.contributor.author	Strauss, J.
dc.contributor.author	Taurok, A.
dc.contributor.author	Treberer-Treberspurg, W.
dc.contributor.author	Waltenberger, W.
dc.contributor.author	Wulz, C. E.
dc.contributor.author	Mossolov, V.
dc.contributor.author	Shumeiko, N.
dc.contributor.author	Suarez Gonzalez, J.
dc.contributor.author	Alderweireldt, S.
dc.contributor.author	Bansal, M.
dc.contributor.author	Bansal, S.
dc.contributor.author	Cornelis, T.
dc.contributor.author	De Wolf, E. A.
dc.contributor.author	Janssen, X.
dc.contributor.author	Knutsson, A.
dc.contributor.author	Luyckx, S.
dc.contributor.author	Ochesanu, S.
dc.contributor.author	Roland, B.
dc.contributor.author	Rougny, R.
dc.contributor.author	Van De Klundert, M.
dc.contributor.author	Van Haevermaet, H.
dc.contributor.author	Van Mechelen, P.
dc.contributor.author	Van Remortel, N.
dc.contributor.author	Van Spilbeeck, A.
dc.contributor.author	Blekman, F.
dc.contributor.author	Blyweert, S.
dc.contributor.author	D'Hondt, J.
dc.contributor.author	Daci, N.
dc.contributor.author	Heracleous, N.
dc.contributor.author	Keaveney, J.
dc.contributor.author	Lowette, S.
dc.contributor.author	Maes, M.
dc.contributor.author	Olbrechts, A.
dc.contributor.author	Python, Q.
dc.contributor.author	Strom, D.
dc.contributor.author	Tavernier, S.
dc.contributor.author	Van Doninck, W.
dc.contributor.author	Van Mulders, P.
dc.contributor.author	Van Onsem, G. P.
dc.contributor.author	Villella, I.
dc.contributor.author	Caillol, C.
dc.contributor.author	Clerbaux, B.
dc.contributor.author	De Lentdecker, G.
dc.contributor.author	Dobur, D.
dc.contributor.author	Favart, L.
dc.contributor.author	Gay, A. P.R.
dc.contributor.author	Grebenyuk, A.
dc.contributor.author	Léonard, A.
dc.contributor.author	Mohammadi, A.
dc.contributor.author	Perniè, L.
dc.contributor.author	Reis, T.
dc.contributor.author	Seva, T.
dc.contributor.author	Thomas, L.
dc.contributor.author	Vander Velde, C.
dc.contributor.author	Vanlaer, P.
dc.contributor.author	Wang, J.
dc.contributor.author	Adler, V.
dc.contributor.author	Beernaert, K.
dc.contributor.author	Benucci, L.
dc.contributor.author	Cimmino, A.
dc.contributor.author	Costantini, S.
dc.contributor.author	Crucy, S.
dc.contributor.author	Dildick, S.
dc.contributor.author	Fagot, A.
dc.contributor.author	Garcia, G.
dc.contributor.author	Mccartin, J.
dc.contributor.author	Ocampo Rios, A. A.
dc.contributor.author	Ryckbosch, D.
dc.contributor.author	Salva Diblen, S.
dc.contributor.author	Sigamani, M.
dc.contributor.author	Strobbe, N.
dc.contributor.author	Thyssen, F.
dc.contributor.author	Tytgat, M.
dc.contributor.author	Yazgan, E.
dc.contributor.author	Zaganidis, N.
dc.date.accessioned	2022-03-27T06:58:00Z
dc.date.available	2022-03-27T06:58:00Z
dc.date.issued	2015-06-30
dc.description.abstract	The first measurement of the cross section ratio σtt¯bb¯/σtt¯jj is presented using a data sample corresponding to an integrated luminosity of 19.6 fb−1 collected in pp collisions at s=8 TeV with the CMS detector at the LHC. Events with two leptons (e or μ) and four reconstructed jets, including two identified as b quark jets, in the final state are selected. The ratio is determined for a minimum jet transverse momentum pT of both 20 and 40 GeV/c. The measured ratio is 0.022±0.003(stat)±0.005(syst) for pT > 20 GeV/c. The absolute cross sections σtt¯bb¯ and σtt¯jj are also measured. The measured ratio for pT > 40 GeV/c is compatible with a theoretical quantum chromodynamics calculation at next-to-leading order.
dc.identifier.citation	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. v.746
dc.identifier.issn	03702693
dc.identifier.uri	10.1016/j.physletb.2015.04.060
dc.identifier.uri	https://www.sciencedirect.com/science/article/abs/pii/S0370269315003263
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/10658
dc.subject	CMS
dc.subject	Physics
dc.subject	Top physics
dc.title	Measurement of the cross section ratio σ < inf > tt¯bb¯ < /inf > /σ < inf > tt¯jj < /inf > in pp collisions at s=8 TeV
dc.type	Journal. Article
dspace.entity.type

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