About: Search for FCNC single top-quark production at root s=7 TeV with the ATLAS detector

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A search for the production of single top-quarks via flavour-changing neutral-currents is presented. Data collected with the ATLAS detector at a centre-of-mass energy of root s = 7 TeV, corresponding to an integrated luminosity of 2.05 fb(-1), are used. Candidate events with a semileptonic top-quark decay signature are classified as signal- or background-like events by using several kinematic variables as input to a neural network. No signal is observed in the neural network output distribution and a Bayesian upper limit is placed on the production cross-section. The observed upper limit at 95% confidence level on the cross-section multiplied by the t -} Wb branching fraction is measured to be sigma(qg -} t) x B(t -} Wb) { 3.9 pb. This upper limit is converted using a model-independent approach into upper limits on the coupling strengths kappa(ugt)/Lambda { 6.9.10(-3) TeV-1 and kappa(cgt)/Lambda { 1.6.10(-2) TeV-1, where A is the new physics scale, and on the branching fractions B(t -} ug) { 5.7.10(-5) and B(t -} cg) { 2.7.10(-4). A search for the production of single top-quarks via flavour-changing neutral-currents is presented. Data collected with the ATLAS detector at a centre-of-mass energy of root s = 7 TeV, corresponding to an integrated luminosity of 2.05 fb(-1), are used. Candidate events with a semileptonic top-quark decay signature are classified as signal- or background-like events by using several kinematic variables as input to a neural network. No signal is observed in the neural network output distribution and a Bayesian upper limit is placed on the production cross-section. The observed upper limit at 95% confidence level on the cross-section multiplied by the t -} Wb branching fraction is measured to be sigma(qg -} t) x B(t -} Wb) { 3.9 pb. This upper limit is converted using a model-independent approach into upper limits on the coupling strengths kappa(ugt)/Lambda { 6.9.10(-3) TeV-1 and kappa(cgt)/Lambda { 1.6.10(-2) TeV-1, where A is the new physics scale, and on the branching fractions B(t -} ug) { 5.7.10(-5) and B(t -} cg) { 2.7.10(-4). (en)
Title	Search for FCNC single top-quark production at root s=7 TeV with the ATLAS detector Search for FCNC single top-quark production at root s=7 TeV with the ATLAS detector (en)
skos:prefLabel	Search for FCNC single top-quark production at root s=7 TeV with the ATLAS detector Search for FCNC single top-quark production at root s=7 TeV with the ATLAS detector (en)
skos:notation	RIV/61989592:15310/12:33141338!RIV13-MSM-15310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	I P Z
http://linked.open...avai/riv/aktivity	I, P(ED2.1.00/03.0058), P(LA08032), P(LC527), Z(AV0Z10100502), Z(MSM0021620859), Z(MSM6840770029), Z(MSM6840770039)
http://linked.open...iv/cisloPeriodika	4-5
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Nožka, Libor Hamal, Petr
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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	166981
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/12:33141338
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Single top quark; FCNC; Heavy-quark production; Top physics (en)
http://linked.open.../riv/klicoveSlovo	FCNC Heavy-quark production Single top quark Top physics
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[957CA70D4452]
http://linked.open...i/riv/nazevZdroje	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3041 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional Centre of Advanced Technologies and Materials International experiment ATLAS-CERN Center for Particle Physics
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	712
http://linked.open...iv/tvurceVysledku	Abbott, B. Abdallah, J. Aad, G. Nožka, Libor Hamal, Petr
http://linked.open...ain/vavai/riv/wos	000305378200006
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 Fundamental Experiments in Physics of Microworld
issn	0370-2693
number of pages	19 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.physletb.2012.05.022
http://localhost/t...ganizacniJednotka	15310
is http://linked.open...avai/riv/vysledek of	Search for FCNC single top-quark production at root s=7 TeV with the ATLAS detector

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