Measurement of the single top quark production cross section and vertical bar V-tb vertical bar in 1.96 TeV p(p)over-bar collisions with missing transverse energy and jets and final CDF combination

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http://hdl.handle.net/10138/162597

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Aaltonen , T , Brucken , E , Devoto , F , Mehtala , P , Orava , R & CDF Collaboration 2016 , ' Measurement of the single top quark production cross section and vertical bar V-tb vertical bar in 1.96 TeV p(p)over-bar collisions with missing transverse energy and jets and final CDF combination ' Physical Review D , vol. 93 , no. 3 , 032011 . DOI: 10.1103/PhysRevD.93.032011

Julkaisun nimi: Measurement of the single top quark production cross section and vertical bar V-tb vertical bar in 1.96 TeV p(p)over-bar collisions with missing transverse energy and jets and final CDF combination
Tekijä: Aaltonen, T.; Amerioa, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Arisawa, T.; Artikov, A.; Asaadi, J.; Ashmanskas, W.; Auerbach, B.; Aurisano, A.; Azfar, F.; Badgett, W.; Bae, T.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Barria, P.; Bartos, P.; Bauce, M.; Bedeschi, F.; Behari, S.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Beretvas, A.; Bhatti, A.; Bland, K. R.; Blumenfeld, B.; Bocci, A.; Bodek, A.; Bortoletto, D.; Boudreau, J.; Boveia, A.; Brigliadori, L.; Bromberg, C.; Brucken, E.; Budagov, J.; Budd, H. S.; Burkett, K.; Busetto, G.; Bussey, P.; Butti, P.; Buzatu, A.; Devoto, F.; Mehtala, P.; Orava, R.
Muu tekijä: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Department of Physics
Päiväys: 2016-02-26
Kieli: eng
Sivumäärä: 9
Kuuluu julkaisusarjaan: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/162597
Tiivistelmä: 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, vertical bar V-tb vertical bar 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 vertical bar V-tb vertical bar of 0.84 is obtained at the 95% credibility level.
Avainsanat: 114 Physical sciences
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