Ultra-bright optical transients are linked with type Ic supernovae

(2010)

Authors:

A Pastorello, SJ Smartt, MT Botticella, K Maguire, M Fraser, K Smith, R Kotak, L Magill, S Valenti, DR Young, S Gezari, F Bresolin, R Kudritzki, DA Howell, A Rest, N Metcalfe, S Mattila, E Kankare, KY Huang, Y Urata, WS Burgett, KC Chambers, T Dombeck, T Flewelling, T Grav, JN Heasley, KW Hodapp, N Kaiser, GA Luppino, RH Lupton, EA Magnier, DG Monet, JS Morgan, PM Onaka, PA Price, PH Rhoads, WA Siegmund, CW Stubbs, WE Sweeney, JL Tonry, RJ Wainscoat, MF Waterson, C Waters, CG Wynn-Williams

Parsec-Scale Bipolar X-ray Shocks Produced by Powerful Jets from the Neutron Star Circinus X-1

(2010)

Authors:

PH Sell, S Heinz, DE Calvelo, V Tudose, P Soleri, RP Fender, PG Jonker, NS Schulz, WN Brandt, MA Nowak, R Wijnands, M van der Klis, P Casella

Search for new color-octet vector particle decaying to tT{topbar} in pP{topbar} collisions at √s=1.96 TeV

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 691:4 (2010) 183-190

Authors:

T Aaltonen, J Adelman, B Álvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, A Attal, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, G Bauer, PH Beauchemin, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, 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, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, K Chung, WH Chung, YS Chung, T Chwalek, CI Ciobanu, MA Ciocci, A Clark, D Clark, G Compostella, ME Convery, J Conway, M Corbo

Abstract:

We present the result of a search for a massive color-octet vector particle, (e.g. a massive gluon) decaying to a pair of top quarks in proton-antiproton collisions with a center-of-mass energy of 1.96 TeV. This search is based on 1.9 fb-1 of data collected using the CDF detector during Run II of the Tevatron at Fermilab. We study tT{topbar} events in the lepton. +. jets channel with at least one b-tagged jet. A massive gluon is characterized by its mass, decay width, and the strength of its coupling to quarks. These parameters are determined according to the observed invariant mass distribution of top quark pairs. We set limits on the massive gluon coupling strength for masses between 400 and 800 GeV/c2 and width-to-mass ratios between 0.05 and 0.50. The coupling strength of the hypothetical massive gluon to quarks is consistent with zero within the explored parameter space. © 2010 Elsevier B.V.

Branching fractions for χcJ→pp̄π0, pp̄η, and pp̄ω

Physical Review D - Particles, Fields, Gravitation and Cosmology 82:1 (2010)

Authors:

PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, S Das, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, JM Hunt, DL Kreinick, VE Kuznetsov, J Ledoux, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, WM Sun, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, S Adams, M Kornicer, RE Mitchell, MR Shepherd, CM Tarbert, D Besson, TK Pedlar, J Xavier, D Cronin-Hennessy, J Hietala, P Zweber, S Dobbs, Z Metreveli, KK Seth, T Xiao, A Tomaradze, S Brisbane, J Libby, L Martin, A Powell, P Spradlin, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, S Ricciardi, C Thomas, M Artuso, S Blusk, R Mountain, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, J Reed, K Randrianarivony, AN Robichaud, G Tatishvili, EJ White, RA Briere, H Vogel

Abstract:

Using a sample of 25.9×106 ψ(2S) decays acquired with the CLEO-c detector at the CESR e+e- collider, we report branching fractions for the decays χcJ→pp̄π0, pp̄η, and pp̄ω, with J=0, 1, 2. Our results for B(χcJ→pp̄π0) and B(χcJ→pp̄η) are consistent with, but more precise than, previous measurements. Furthermore, we include the first measurement of B(χcJ→pp̄ω). © 2010 The American Physical Society.

GALEX and Pan-STARRS1 Discovery of SN IIP 2010aq: The First Few Days After Shock Breakout in a Red Supergiant Star

(2010)

Authors:

S Gezari, A Rest, ME Huber, G Narayan, K Forster, JD Neill, DC Martin, S Valenti, SJ Smartt, R Chornock, E Berger, AM Soderberg, S Mattila, E Kankare, WS Burgett, KC Chambers, T Dombeck, T Grav, JN Heasley, KW Hodapp, R Jedicke, N Kaiser, R Kudritzki, G Luppino, RH Lupton, EA Magnier, DG Monet, JS Morgan, PM Onaka, PA Price, PH Rhoads, WA Siegmund, CW Stubbs, JL Tonry, RJ Wainscoat, MF Waterson, CG Wynn-Williams