Search for single vectorlike quarks in pp ̄ collisions at √s=1.96  TeV

We present a search for hypothetical vectorlike quarks in pp ̅ collisions at √s=1.96  TeV. The data were collected by the D0 detector at the Fermilab Tevatron Collider and correspond to an integrated luminosity of 5.4  fb(-1). We select events with a final state composed of a W or Z boson and a jet...

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Bibliographic Details
Published in:Physical review letters 2011-02, Vol.106 (8), p.081801-081801
Main Authors: Abazov, V M, Abbott, B, Acharya, B S, Adams, M, Adams, T, Alexeev, G D, Alkhazov, G, Alton, A, Alverson, G, Alves, G A, Ancu, L S, Aoki, M, Arnoud, Y, Arov, M, Askew, A, Åsman, B, Atramentov, O, Avila, C, BackusMayes, J, Badaud, F, Bagby, L, Baldin, B, Bandurin, D V, Banerjee, S, Barberis, E, Baringer, P, Barreto, J, Bartlett, J F, Bassler, U, Bazterra, V, Beale, S, Bean, A, Begalli, M, Begel, M, Belanger-Champagne, C, Bellantoni, L, Beri, S B, Bernardi, G, Bernhard, R, Bertram, I, Besançon, M, Beuselinck, R, Bezzubov, V A, Bhat, P C, Bhatnagar, V, Blazey, G, Blessing, S, Bloom, K, Boehnlein, A, Boline, D, Bolton, T A, Boos, E E, Borissov, G, Bose, T, Brandt, A, Brandt, O, Brock, R, Brooijmans, G, Bross, A, Brown, D, Brown, J, Bu, X B, Buehler, M, Buescher, V, Bunichev, V, Burdin, S, Burnett, T H, Buszello, C P, Calpas, B, Camacho-Pérez, E, Carrasco-Lizarraga, M A, Casey, B C K, Castilla-Valdez, H, Caughron, S, Chakrabarti, S, Chakraborty, D, Chan, K M, Chandra, A, Chen, G, Chevalier-Théry, S, Cho, D K, Cho, S W, Choi, S, Choudhary, B, Christoudias, T, Cihangir, S, Claes, D, Clutter, J, Cooke, M, Cooper, W E, Corcoran, M, Couderc, F, Cousinou, M-C, Croc, A, Cutts, D, Ćwiok, M, Das, A, Davies, G, De, K, de Jong, S J
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Language:English
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Summary:We present a search for hypothetical vectorlike quarks in pp ̅ collisions at √s=1.96  TeV. The data were collected by the D0 detector at the Fermilab Tevatron Collider and correspond to an integrated luminosity of 5.4  fb(-1). We select events with a final state composed of a W or Z boson and a jet consistent with a heavy object decay. We observe no significant excess in comparison to the background prediction and set limits on production cross sections for vectorlike quarks decaying to W+jet and Z+jet. These are the most stringent limits to date for electroweak single vectorlike quark production at hadron colliders.
ISSN:0031-9007
1079-7114