Results 111 to 120 of about 217,289 (236)

Higher-twist B-meson distribution amplitudes in HQET

Journal of High Energy Physics, 2017
We present a systematic study of higher-twist distribution amplitudes (DAs) of the B-meson which give rise to power-suppressed 1/m B contributions to B-decays in final states with energetic light particles in the framework of QCD factorization.
V. M. Braun, Yao Ji, A. N. Manashov
doaj   +1 more source

Light quark masses and CKM matrix elements from lattice QCD [PDF]

, 1998
I give a brief overview of recent results from lattice QCD calculations which are relevant for the phenomenology of the Standard Model. I discuss, in particular, the lattice determination of light quark masses and the calculation of those hadronic ...
Lubicz, Vittorio
core   +2 more sources

Impact of isolation and fiducial cuts on q T and N-jettiness subtractions

Journal of High Energy Physics, 2020
Kinematic selection cuts and isolation requirements are a necessity in experimental measurements for identifying prompt leptons and photons that originate from the hard-interaction process of interest.
Markus A. Ebert, Frank J. Tackmann
doaj   +1 more source

Recent BCP progress in Taiwan [PDF]

, 2001
I review theoretical progresses on $B$ physics and CP violation which were made in Taiwan recently. I concentrate on the approaches to exclusive $B$ meson decays based on factorization assumption, SU(3) symmetry, perturbative QCD factorization theorem ...
Li, Hsiang-nan
core   +3 more sources

Isolated photon and photon+jet production at NNLO QCD accuracy

Journal of High Energy Physics, 2020
We describe the calculation of the next-to-next-to-leading order (NNLO) QCD corrections to isolated photon and photon-plus-jet production, and discuss how the experimental hadron-level photon definition and isolation criteria can be approximated in the ...
Xuan Chen, Thomas Gehrmann, Nigel Glover, Marius Höfer, Alexander Huss   +4 more
doaj   +1 more source

Fiducial cross sections for the lepton-pair-plus-photon decay mode in Higgs production up to NNLO QCD

Journal of High Energy Physics, 2022
The rare three-body decay of a Higgs boson to a lepton-antilepton pair and a photon is starting to become experimentally accessible at the LHC. We investigate how higher-order QCD corrections to the dominant gluon-fusion production process impact on the ...
X. Chen, T. Gehrmann, E. W. N. Glover, A. Huss   +3 more
doaj   +1 more source

QCD Working Group Report [PDF]

, 2000
This is the report of the QCD working group at WHEPP 6. Discussions and work on heavy ion collisions, polarised scattering, and collider phenomenology are reported.Comment: Report of the QCD group at WHEPP-6, Chennai, January 2000.
A Bassetto, A Harindranath, A Niegawa, Asmita Mukherjee, C Bourrley, D Ghosh, D Indumathi, D Indumathi, D Indumathi, F Gelis, G Altarelli, H Leutwyler, H Osborn, H Osborn, K Bardakci, M Dittmar, M Dittmar, M Z Akrawy, P Chiappetta, P F Bedaque, R Basu, R Rapp, Rahul Basu, RV Gavai, S Banerjee, Sourendu Gupta, Sourendu Gupta, T Altherr, T Altherr, V Alfaro de, V N Gribov, W Braunschweig, Yu L Dokshitzer, Yu L Dokshitzer, Yu L Dokshitzer, Yu L Dokshitzer, Yu L Dokshitzer   +36 more
core   +2 more sources

Probing axial quark generalized parton distributions through exclusive photoproduction of a γπ ± pair with a large invariant mass

Journal of High Energy Physics, 2018
Exclusive photoproduction of a γπ ± pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework.
G. Duplančić, K. Passek-Kumerički, B. Pire, L. Szymanowski, S. Wallon   +4 more
doaj   +1 more source

Rare two-body decays of the top quark into a bottom meson plus an up or charm quark

Journal of High Energy Physics, 2020
Rare two-body decays of the top quark into a neutral bottom-quark meson plus an up- or charm-quark: t → B ¯ 0 + u , c ; t → B ¯ s 0 + c , u $$ t\to {\overline{B}}^0+u,\kern0.5em c;t\to {\overline{B}}_s^0+c,\kern0.5em u $$ ; and t → ϒ(nS) + c, u, are ...
David d’Enterria, Hua-Sheng Shao
doaj   +1 more source

QCD spin physics: status, and prospects for RHIC

, 2004
We review some of the recent developments in QCD spin physics and highlight the spin program now underway at RHIC.Comment: 16 pages LaTeX, 14 figures.
A Airapetian, A Airapetian, A Airapetian, A Bacchetta, A Bacchetta, A Bacchetta, A Bravar, A Bravar, A Kotzinian, A Metz, A Mukherjee, A P Contogouris, A P Contogouris, A V Belitsky, A V Belitsky, A V Efremov, A V Efremov, A Weber, B Adeva, B Jäger, B Jäger, B Jäger, B Kamal, B Lampe, B W Filippone, C Bourrely, C Bourrely, D Boer, D Boer, D Boer, D Boer, D Boer, D Boer, D Florian de, D Florian de, D L Adams, D W Sivers, E Christova, E Leader, E Leader, E W Hughes, G Bunce, G Farrar, G Navarro, I Bojak, J Adams, J Blümlein, J C Collins, J C Collins, J C Collins, J D Bjorken, J P Ralston, J-W Qiu, L C Bland, L E Gordon, L P Gamberg, M Anselmino, M Anselmino, M Anselmino, M Boglione, M Burkardt, M Burkardt, M Burkardt, M Burkardt, M Burkardt, M Diehl, M Glück, M Hirai, M Stratmann, M Stratmann, N Isgur, N S Craigie, P Aurenche, P Chiappetta, P G Ratcliffe, P J Mulders, P Nadolsky, R L Jaffe, R Mertig, R Seidl, S D Bass, S Frixione, S J Brodsky, S J Brodsky, S S Adler, T Gehrmann, U Stösslein, V Ravindran, W Vogelsang, Werner Vogelsang, X Artru, X Ji, X Zheng, X-D Ji, Y Koike   +94 more
core   +1 more source