Astronomical instrumentation

Research group

Research theme

Sub department

About

Measurement of forward J/ψ production cross-sections in pp collisions at s√=13 TeV

Journal of High Energy Physics Springer Berlin Heidelberg 2015:172 (2015)

Authors:

R Aaij, B Adeva, M Adinolfi, S-F Cheung, T Evans, P Gandini, R Gauld, E Greening, T Hadavizadeh, Neville Harnew, D Hill, N Hussain, J Jalocha, Malcolm John, O Lupton, Sneha Malde, A Nandi, E Smith, S Stevenson, C Thomas, S Topp-Joergensen, N Torr, G Wilkinson

Abstract:

The production of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of s√=13 TeV is studied with the LHCb detector. Cross-section measurements are performed as a function of the transverse momentum p T and the rapidity y of the J/ψ meson in the region pT< 14 GeV/c and 2.0 < y < 4.5, for both prompt J/ψ mesons and J/ψ mesons from b-hadron decays. The production cross-sections integrated over the kinematic coverage are 15.30 ± 0.03 ± 0.86 μb for prompt J/ψ and 2.34 ± 0.01 ± 0.13 μb for J/ψ from b-hadron decays, assuming zero polarization of the J/ψ meson. The first uncertainties are statistical and the second systematic. The cross-section reported for J/ψ mesons from b-hadron decays is used to extrapolate to a total bb¯¯ cross-section. The ratios of the cross-sections with respect to s√=8 TeV are also determined.
More details from the publisher
Details from ORA
More details
Details from ArXiV

Observations of Galactic star-forming regions with the Cosmic Background Imager at 31 GHz

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 453:2 (2015) 2082-2093

Authors:

C Demetroullas, C Dickinson, D Stamadianos, SE Harper, K Cleary, Michael E Jones, TJ Pearson, ACS Readhead, Angela C Taylor
More details from the publisher
More details
Details from ArXiV

The Subaru–XMM-Newton Deep Survey (SXDS). VIII. Multi-wavelength identification, optical/NIR spectroscopic properties, and photometric redshifts of X-ray sources†

Publications of the Astronomical Society of Japan Oxford University Press (OUP) 67:5 (2015) 82

Authors:

Masayuki Akiyama, Yoshihiro Ueda, Mike G Watson, Hisanori Furusawa, Tadafumi Takata, Chris Simpson, Tomoki Morokuma, Toru Yamada, Kouji Ohta, Fumihide Iwamuro, Kiyoto Yabe, Naoyuki Tamura, Yuuki Moritani, Naruhisa Takato, Masahiko Kimura, Toshinori Maihara, Gavin Dalton, Ian Lewis, Hanshin Lee, Emma Curtis-Lake, Edward Macaulay, Frazer Clarke, John D Silverman, Scott Croom, Masami Ouchi, Hitoshi Hanami, Jorge Díaz Tello, Tomohiro Yoshikawa, Naofumi Fujishiro, Kazuhiro Sekiguchi
More details from the publisher
More details

A DEEP HERSCHEL/PACS OBSERVATION OF CO(40-39) IN NGC 1068: A SEARCH FOR THE MOLECULAR TORUS

The Astrophysical Journal American Astronomical Society 811:2 (2015) 74

Authors:

AW Janssen, S Bruderer, E Sturm, A Contursi, R Davies, S Hailey-Dunsheath, A Poglitsch, R Genzel, J Graciá-Carpio, D Lutz, L Tacconi, J Fischer, E González-Alfonso, A Sternberg, S Veilleux, A Verma, L Burtscher
More details from the publisher
More details

THE Q/U IMAGING EXPERIMENT: POLARIZATION MEASUREMENTS OF THE GALACTIC PLANE AT 43 AND 95 GHz

The Astrophysical Journal American Astronomical Society 811:2 (2015) 89

Authors:

TM Ruud, U Fuskeland, IK Wehus, M Vidal, D Araujo, C Bischoff, I Buder, Y Chinone, K Cleary, RN Dumoulin, A Kusaka, R Monsalve, SK Næss, LB Newburgh, RA Reeves, JTL Zwart, L Bronfman, RD Davies, R Davis, C Dickinson, HK Eriksen, T Gaier, JO Gundersen, M Hasegawa, M Hazumi, KM Huffenberger, ME Jones, CR Lawrence, EM Leitch, M Limon, AD Miller, TJ Pearson, L Piccirillo, SJE Radford, ACS Readhead, D Samtleben, M Seiffert, MC Shepherd, ST Staggs, O Tajima, KL Thompson
More details from the publisher
More details
Details from ArXiV