Search for pair production of scalar top quarks decaying to a tau lepton and a b quark in pp over collisions at sqrt s=1.96 TeV. Academic Article uri icon

abstract

  • We search for pair production of supersymmetric top quarks (t over1), followed by R-parity violating decay t over1-->taub with a branching ratio beta, using 322 pb(-1) of pp over collisions at sqrt s=1.96 TeV collected by the upgraded Collider Detector at Fermilab. Two candidate events pass our final selection criteria, consistent with the standard model expectation. We set upper limits on the cross section sigma(t over1t over1) x beta2 as a function of the top-squark mass m(t over1). Assuming beta=1, we set a 95% confidence level limit m(t over1)>153 GeV/c2. The limits are also applicable to the case of a third-generation scalar leptoquark (LQ3) decaying LQ3-->taub.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M. G., Alvarez Gonzlez, B., Amerio, S., ... CDF Collaboration.

complete list of authors

  • Aaltonen, T||Adelman, J||Akimoto, T||Albrow, MG||Alvarez Gonz├ílez, B||Amerio, S||Amidei, D||Anastassov, A||Annovi, A||Antos, J||Aoki, M||Apollinari, G||Apresyan, A||Arisawa, T||Artikov, A||Ashmanskas, W||Attal, A||Aurisano, A||Azfar, F||Azzi-Bacchetta, P||Azzurri, P||Bacchetta, N||Badgett, W||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Baroiant, S||Bartsch, V||Bauer, G||Beauchemin, P-H||Bedeschi, F||Bednar, P||Behari, S||Bellettini, G||Bellinger, J||Belloni, A||Benjamin, D||Beretvas, A||Beringer, J||Berry, T||Bhatti, A||Binkley, M||Bisello, D||Bizjak, I||Blair, RE||Blocker, C||Blumenfeld, B||Bocci, A||Bodek, A||Boisvert, V||Bolla, G||Bolshov, A||Bortoletto, D||Boudreau, J||Boveia, A||Brau, B||Bridgeman, A||Brigliadori, L||Bromberg, C||Brubaker, E||Budagov, J||Budd, HS||Budd, S||Burkett, K||Busetto, G||Bussey, P||Buzatu, A||Byrum, KL||Cabrera, S||Campanelli, M||Campbell, M||Canelli, F||Canepa, A||Carlsmith, D||Carosi, R||Carrillo, S||Carron, S||Casal, B||Casarsa, M||Castro, A||Catastini, P||Cauz, D||Cavalli

publication date

  • January 1, 2008 11:11 AM