Measurement of the single top quark production cross section and V.sub.tb./sub. in 1.96 TeV pp¯ collisions with missing transverse energy and jets and final CDF combination

0501347 - FZÚ 2019 RIV US eng J - Článek v odborném periodiku
Aaltonen, T. - Amerio, S. - Amidei, D. - Lysák, Roman … celkem 401 autorů
Measurement of the single top quark production cross section and V_tb in 1.96 TeV pp¯ collisions with missing transverse energy and jets and final CDF combination.
Physical Review D. Roč. 93, č. 3 (2016), s. 1-9, č. článku 032011. ISSN 2470-0010. E-ISSN 2470-0029
Institucionální podpora: RVO:68378271
Klíčová slova: CDF * Batavia TEVATRON Coll * anti-p p --> top anything * top --> W bottom * 1960 GeV-cms
Obor OECD: Particles and field physics
Impakt faktor: 4.557, rok: 2016

An updated measurement of the single top quark production cross section is presented using the full data set collected by the Collider Detector at Fermilab (CDF), corresponding to 9.5  fb-1 of integrated luminosity from proton-antiproton collisions at 1.96 TeV center-of-mass energy. The events selected contain an imbalance in the total transverse momentum, jets identified as containing b quarks, and no identified leptons. The sum of the s- and t-channel single top quark cross sections is measured to be 3.53-1.16+1.25  pb and a lower limit on the magnitude of the top-to-bottom quark coupling, |Vtb| of 0.63, is obtained at the 95% credibility level. These measurements are combined with previously reported CDF results obtained from events with an imbalance in total transverse momentum, jets identified as originating from b quarks, and one identified lepton. The combined cross section is measured to be 3.02-0.48+0.49  pb and a lower limit on |Vtb| of 0.84 is obtained at the 95% credibility level.

Trvalý link: http://hdl.handle.net/11104/0293337