Observation of Y(1S) pair production in proton-proton collisions at √s=8 TeV

Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; Rad, N.; Rahbaran, B.; Rohringer, H.; Schieck, J.; Strauss, J.; Waltenberger, W.; Wulz, C. E.; Dvornikov, O.; Makarenko, V.; Zykunov, V.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Alderweireldt, S.; De Wolf, E. A.; Janssen, X.; Lauwers, J.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Abu Zeid, S.; Blekman, F.; D’Hondt, J.; Daci, N.; De Bruyn, I.; Deroover, K.; Lowette, S.; Moortgat, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Léonard, A.; Luetic, J.; Maerschalk, T.; Marinov, A.; Randle-conde, A.; Seva, T.; Vander Velde, C.; Vanlaer, P.; Yonamine, R.; Zenoni, F.; Zhang, F.; Cimmino, A.; Cornelis, T.; Dobur, D.; Fagot, A.; Garcia, G.; Gul, M.; Khvastunov, I.; Poyraz, D.; Salva, S.; Schöfbeck, R.; Sharma, A.; Tytgat, M.; Van Driessche, W.; Yazgan, E.; Zaganidis, N.; Bakhshiansohi, H.; Beluffi, C.

Observation of Y(1S) pair production in proton-proton 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	Asilar, E.
dc.contributor.author	Bergauer, T.
dc.contributor.author	Brandstetter, J.
dc.contributor.author	Brondolin, E.
dc.contributor.author	Dragicevic, M.
dc.contributor.author	Erö, J.
dc.contributor.author	Flechl, M.
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	König, A.
dc.contributor.author	Krätschmer, I.
dc.contributor.author	Liko, D.
dc.contributor.author	Matsushita, T.
dc.contributor.author	Mikulec, I.
dc.contributor.author	Rabady, D.
dc.contributor.author	Rad, N.
dc.contributor.author	Rahbaran, B.
dc.contributor.author	Rohringer, H.
dc.contributor.author	Schieck, J.
dc.contributor.author	Strauss, J.
dc.contributor.author	Waltenberger, W.
dc.contributor.author	Wulz, C. E.
dc.contributor.author	Dvornikov, O.
dc.contributor.author	Makarenko, V.
dc.contributor.author	Zykunov, V.
dc.contributor.author	Mossolov, V.
dc.contributor.author	Shumeiko, N.
dc.contributor.author	Suarez Gonzalez, J.
dc.contributor.author	Alderweireldt, S.
dc.contributor.author	De Wolf, E. A.
dc.contributor.author	Janssen, X.
dc.contributor.author	Lauwers, J.
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	Abu Zeid, S.
dc.contributor.author	Blekman, F.
dc.contributor.author	D’Hondt, J.
dc.contributor.author	Daci, N.
dc.contributor.author	De Bruyn, I.
dc.contributor.author	Deroover, K.
dc.contributor.author	Lowette, S.
dc.contributor.author	Moortgat, S.
dc.contributor.author	Moreels, L.
dc.contributor.author	Olbrechts, A.
dc.contributor.author	Python, Q.
dc.contributor.author	Tavernier, S.
dc.contributor.author	Van Doninck, W.
dc.contributor.author	Van Mulders, P.
dc.contributor.author	Van Parijs, I.
dc.contributor.author	Brun, H.
dc.contributor.author	Clerbaux, B.
dc.contributor.author	De Lentdecker, G.
dc.contributor.author	Delannoy, H.
dc.contributor.author	Fasanella, G.
dc.contributor.author	Favart, L.
dc.contributor.author	Goldouzian, R.
dc.contributor.author	Grebenyuk, A.
dc.contributor.author	Karapostoli, G.
dc.contributor.author	Lenzi, T.
dc.contributor.author	Léonard, A.
dc.contributor.author	Luetic, J.
dc.contributor.author	Maerschalk, T.
dc.contributor.author	Marinov, A.
dc.contributor.author	Randle-conde, A.
dc.contributor.author	Seva, T.
dc.contributor.author	Vander Velde, C.
dc.contributor.author	Vanlaer, P.
dc.contributor.author	Yonamine, R.
dc.contributor.author	Zenoni, F.
dc.contributor.author	Zhang, F.
dc.contributor.author	Cimmino, A.
dc.contributor.author	Cornelis, T.
dc.contributor.author	Dobur, D.
dc.contributor.author	Fagot, A.
dc.contributor.author	Garcia, G.
dc.contributor.author	Gul, M.
dc.contributor.author	Khvastunov, I.
dc.contributor.author	Poyraz, D.
dc.contributor.author	Salva, S.
dc.contributor.author	Schöfbeck, R.
dc.contributor.author	Sharma, A.
dc.contributor.author	Tytgat, M.
dc.contributor.author	Van Driessche, W.
dc.contributor.author	Yazgan, E.
dc.contributor.author	Zaganidis, N.
dc.contributor.author	Bakhshiansohi, H.
dc.contributor.author	Beluffi, C.
dc.date.accessioned	2022-03-27T06:53:06Z
dc.date.available	2022-03-27T06:53:06Z
dc.date.issued	2017-05-01
dc.description.abstract	Pair production of Y(1S) mesons is observed at the LHC in proton-proton collisions at s=8 TeV by the CMS experiment in a data sample corresponding to an integrated luminosity of 20.7 fb−1. Both Y(1S) candidates are fully reconstructed via their decays to μ+μ−. The fiducial acceptance region is defined by an absolute Y(1S) rapidity smaller than 2.0. The fiducial cross section for the production of Y(1S) pairs, assuming that both mesons decay isotropically, is measured to be 68.8±12.7 (stat)±7.4 (syst)±2.8 (ℬ) pb, where the third uncertainty comes from the uncertainty in the branching fraction of Y(1S) decays to μ+μ−. Assuming instead that the Y(1S) mesons are produced with different polarizations leads to variations in the measured cross section in the range from −38% to +36%.
dc.identifier.citation	Journal of High Energy Physics. v.2017(5)
dc.identifier.issn	11266708
dc.identifier.uri	10.1007/JHEP05(2017)013
dc.identifier.uri	http://link.springer.com/10.1007/JHEP05(2017)013
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/10467
dc.subject	Hadron-Hadron scattering (experiments)
dc.subject	Quarkonium
dc.title	Observation of Y(1S) pair production in proton-proton collisions at √s=8 TeV
dc.type	Journal. Article
dspace.entity.type

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