Measurements of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) differential cross sections in pp collisions at root s=7 TeV

CMS Collaboration; SHARMA, SEEMA et al.; Khachatryan, V.

dc.contributor.author	CMS Collaboration	en_US
dc.contributor.author	Khachatryan, V.	en_US
dc.contributor.author	SHARMA, SEEMA et al.	en_US
dc.date.accessioned	2019-03-15T11:27:04Z
dc.date.available	2019-03-15T11:27:04Z
dc.date.issued	2015-10	en_US
dc.identifier.citation	Physics Letters B, 749, 14-34.	en_US
dc.identifier.issn	0370-2693	en_US
dc.identifier.issn	1873-2445	en_US
dc.identifier.uri	http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2298
dc.identifier.uri	https://doi.org/10.1016/j.physletb.2015.07.037	en_US
dc.description.abstract	Differential cross sections as a function of transverse momentum pT 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−1 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<pT<100GeV. The measurements show a transition from an exponential to a power-law behavior at pT≈20GeV 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 pT increases at low pT, then become flatter at higher pT	en_US
dc.language.iso	en	en_US
dc.publisher	Elsevier B.V.	en_US
dc.subject	CMS	en_US
dc.subject	Upsilon	en_US
dc.subject	B-Physics	en_US
dc.subject	Cross section	en_US
dc.subject	Quantum chromodynamics	en_US
dc.subject	Yield determination procedure	en_US
dc.subject	2015	en_US
dc.title	Measurements of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) differential cross sections in pp collisions at root s=7 TeV	en_US
dc.type	Article	en_US
dc.contributor.department	Dept. of Physics	en_US
dc.identifier.sourcetitle	Physics Letters B	en_US
dc.publication.originofpublisher	Foreign	en_US