Observation of Single Top-Quark Production
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
28/08/2009
|
Resumo |
We report observation of the electroweak production of single top quarks in pp collisions at s=1.96 TeV based on 2.3 fb(-1) of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originating from the fragmentation of b quarks, we measure a cross section of sigma(pp -> tb+X,tqb+X)=3.94 +/- 0.88 pb. The probability to measure a cross section at this value or higher in the absence of signal is 2.5x10(-7), corresponding to a 5.0 standard deviation significance for the observation. |
Formato |
7 |
Identificador |
http://dx.doi.org/10.1103/PhysRevLett.103.092001 Physical Review Letters. College Pk: Amer Physical Soc, v. 103, n. 9, p. 7, 2009. 0031-9007 http://hdl.handle.net/11449/24523 10.1103/PhysRevLett.103.092001 WOS:000269718500021 WOS000269718500021.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review Letters |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |