About: Evidence for spin correlation in ttˉ production

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present a measurement of the ratio of events with correlated t and tbar spins to the total number of ttbar events. This ratio f is evaluated using a matrix-element-based approach in events with a single lepton (electron or muon) and at least four jets. We analyze ppbar collisions data corresponding to an integrated luminosity of 5.3 fb^-1 collected with the D0 detector at the Fermilab Tevatron collider operating at a center of mass energy s=1.96 TeV. Combining this result with a recent measurement of f in dilepton final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in ttbar events with a significance of more than three standard deviations. We present a measurement of the ratio of events with correlated t and tbar spins to the total number of ttbar events. This ratio f is evaluated using a matrix-element-based approach in events with a single lepton (electron or muon) and at least four jets. We analyze ppbar collisions data corresponding to an integrated luminosity of 5.3 fb^-1 collected with the D0 detector at the Fermilab Tevatron collider operating at a center of mass energy s=1.96 TeV. Combining this result with a recent measurement of f in dilepton final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in ttbar events with a significance of more than three standard deviations. (en)
Title	Evidence for spin correlation in ttˉ production Evidence for spin correlation in ttˉ production (en)
skos:prefLabel	Evidence for spin correlation in ttˉ production Evidence for spin correlation in ttˉ production (en)
skos:notation	RIV/68378271:_____/12:00380020!RIV13-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(LA08047), P(LC527), P(LG12006), P(LG12020), S, Z(AV0Z10100502), Z(MSM0021620859), Z(MSM6840770039)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kupčo, Alexander Lokajíček, Miloš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	135264
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/12:00380020
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Batavia TEVATRON Coll; correlation dilepton; pair production; final state; D0; anti-p p interaction (en)
http://linked.open.../riv/klicoveSlovo	D0 final state Batavia TEVATRON Coll pair production correlation dilepton anti-p p interaction
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[B55E574FB8E0]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	409 (xsd:int)
http://linked.open...vavai/riv/projekt	Collaboration on the D0 Experiment at FNAL, U.S.A. Center for Particle Physics Collaboration on NOvA and D0 Experiments at Fermi National Laboratory, USA Advanced statistical analysis and non-statistical separation techniques for physical processing detection in data sets sampled by means of elementary particle accelerators.
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	108
http://linked.open...iv/tvurceVysledku	Abazov, V. M. Abbott, B. Acharya, B. S. Kupčo, Alexander Lokajíček, Miloš
http://linked.open...ain/vavai/riv/wos	000299329100006
http://linked.open...n/vavai/riv/zamer	Jevy fyziky elementárních částic přesahující standardní model Výzkum vlastností jader a subjaderných částic a jejich interakcí Matematické, počítačové a experimentální metody ve fyzice
issn	0031-9007
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevLett.108.032004
is http://linked.open...avai/riv/vysledek of	Evidence for spin correlation in ttˉ production

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