UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Search for New Bottomlike Quark Pair Decays Q(Q)over-bar -> (tW +/-)((t)over-barW +/- in Same-Charge Dileption Events

Aaltonen, T; Adelman, J; Gonzalez, BA; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; ... Zucchelli, S; + view all (2010) Search for New Bottomlike Quark Pair Decays Q(Q)over-bar -> (tW +/-)((t)over-barW +/- in Same-Charge Dileption Events. PHYS REV LETT , 104 (9) , Article 091801. 10.1103/PhysRevLett.104.091801. Green open access

[thumbnail of 171941.pdf]
Preview
PDF
171941.pdf

Download (261kB)

Abstract

We report the most restrictive direct limits on masses of fourth- generation down- type quarks b0, and quarklike composite fermions (B or T5= 3), decaying promptly to tW -/+. We search for a significant excess of events with two same- charge leptons (e, mu), several hadronic jets, and missing transverse energy. An analysis of data from pp collisions with an integrated luminosity of 2: 7 fb = 1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb0, mB > 338 GeV= c2 and mT5= 3 > 365 GeV= c2 at 95% confidence level.

Type: Article
Title: Search for New Bottomlike Quark Pair Decays Q(Q)over-bar -> (tW +/-)((t)over-barW +/- in Same-Charge Dileption Events
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.104.091801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.104.091801
Language: English
Additional information: © 2010 The American Physical Society
Keywords: VIOLATION, COLLIDER, FERMILAB
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/171941
Downloads since deposit
51Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item