A weak compact jet in a soft state of Cygnus X-1

(2011)

Authors:

A Rushton, JCA Miller-Jones, R Campana, Y Evangelista, Z Paragi, TJ Maccarone, GG Pooley, V Tudose, RP Fender, RE Spencer, V Dhawan

Millimetre observations of a sub-arcsecond jet from Circinus X-1

(2011)

Authors:

DE Calvelo, RP Fender, AK Tzioumis, JW Broderick

The first resolved imaging of milliarcsecond-scale jets in Circinus X-1

(2011)

Authors:

JCA Miller-Jones, A Moin, SJ Tingay, C Reynolds, CJ Phillips, AK Tzioumis, RP Fender, JN McCallum, GD Nicolson, V Tudose

SN 2010ay is a Luminous and Broad-lined Type Ic Supernova within a Low-metallicity Host Galaxy

(2011)

Authors:

Nathan E Sanders, AM Soderberg, S Valenti, RJ Foley, R Chornock, L Chomiuk, E Berger, S Smartt, K Hurley, SD Barthelmy, EM Levesque, G Narayan, RP Kirshner, MT Botticella, MS Briggs, V Connaughton, Y Terada, N Gehrels, S Golenetskii, E Mazets, T Cline, A von Kienlin, W Boynton, KC Chambers, T Grav, JN Heasley, KW Hodapp, R Jedicke, N Kaiser, R-P Kudritzki, GA Luppino, RH Lupton, EA Magnier, DG Monet, JS Morgan, PM Onaka, PA Price, CW Stubbs, JL Tonry, RJ Wainscoat, MF Waterson

Search for resonant production of tt̄ decaying to jets in pp̄ collisions at √s=1.96TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 84:7 (2011)

Authors:

T Aaltonen, B Alvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B Auerbach, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, M Bauce, G Bauer, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I Bizjak, KR Bland, B Blumenfeld, A Bocci, A Bodek, D Bortoletto, J Boudreau, A Boveia, L Brigliadori, A Brisuda, C Bromberg, E Brucken, M Bucciantonio, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, WH Chung, YS Chung, CI Ciobanu, MA Ciocci, A Clark, C Clarke, G Compostella, ME Convery, J Conway, M Corbo, M Cordelli, CA Cox, DJ Cox, F Crescioli, C Cuenca Almenar, J Cuevas, R Culbertson, D Dagenhart

Abstract:

This paper reports a search for nonstandard model topquark resonances, Z′, decaying to tt̄→W+bW -b̄, where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of pp̄ collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8fb-1. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolor model in which the Z′ has a width of Γ Z′=0.012MZ′. Within this model, we exclude a Z′ boson with masses below 805GeV/c2 at the 95% confidence level. © 2011 American Physical Society.