Results 31 to 40 of about 121,350 (241)

Apparent unitarity violation in high mass region of MbW from a “hidden” top partner at high energy colliders

Physics Letters B, 2016
Perturbative unitarity conditions have been playing an important role in estimating the energy scale of new physics, including the Higgs mass as the most important example.
Chengcheng Han, Mihoko M. Nojiri, Myeonghun Park   +2 more
doaj   +1 more source

Heavy-quark binding and kinetic energies in heavy-light mesons and the constituent quark model [PDF]

, 1997
The spin-averaged binding energy and the hyperfine mass splitting of heavy-light mesons are investigated within the constituent quark model as a function of the inverse heavy-quark mass. It is shown that the so-called heavy-quark kinetic energy, -lambda1
Bagan, Bagan, Ball, Bigi, Bigi, Bigi, Brambilla, Brambilla, Cardarelli, Cardarelli, Cardarelli, Chernyak, Davoudiasl, De Fazio, Eletsky, Falk, Giménez, Giménez, Godfrey, Grach, Gremm, Gremm, Hwang, Hwang, Isgur, Isgur, Isgur, Kapustin, Lucha, Neubert, Neubert, Neubert, Scora, Silvano Simula, Simula   +34 more
core   +2 more sources

The static hard-loop gluon propagator to all orders in anisotropy

Journal of High Energy Physics, 2017
We calculate the (semi-)static hard-loop self-energy and propagator using the Keldysh formalism in a momentum-space anisotropic quark-gluon plasma. The static retarded, advanced, and Feynman (symmetric) self-energies and propagators are calculated to all
Mohammad Nopoush, Yun Guo, Michael Strickland   +2 more
doaj   +1 more source

Towards B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ at the NNLO in QCD without interpolation in m c

Journal of High Energy Physics, 2020
Strengthening constraints on new physics from the B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ branching ratio requires improving accuracy in the measurements and the Standard Model predictions.
Miko-laj Misiak, Abdur Rehman, Matthias Steinhauser   +2 more
doaj   +1 more source

Charm and beauty of the Large Hadron Collider [PDF]

, 2005
With the acceleration of lead nuclei in the LHC, heavy-ion physics will enter a new energy domain. One of the main novelties introduced by the 30-fold energy-jump from RHIC to the LHC is the abundant heavy-quark production.
, , Accardi A, Andrea Dainese, Armesto N Dainese A Salgado C A Wiedemann U A, ATLAS Collaboration, Bedjidian M, Carrer N, Carrer N Dainese A, Dainese A, Dainese A, Klay J, Molnar D, Petrushanko S, Vogt R   +14 more
core   +2 more sources

Improved nonrelativistic QCD for heavy-quark physics [PDF]

Physical Review D, 1992
40 pages, 2 figures (not included), in ...
LEPAGE G. P, HORNBOSTEL K, MAGNEA, Lorenzo, MAGNEA, Lena Ulrika, NAKHLEH C.   +4 more
openaire   +4 more sources

Semileptonic B Decays from an NRQCD/D234 Action [PDF]

, 2002
Semileptonic B decays are studied on quenched anisotropic lattices using Symanzik improved glue, NRQCD heavy quark and D234 light quark actions. We employ constrained fits to extract ground state contributions to two- and three-point correlators. Results
Abada, Aoki, Bowler, C.T.H. Davies, El-Khadra, G.P. Lepage, J. Hein, J. Shigemitsu, Lepage, R.R. Horgan, S. Collins, Shigemitsu   +11 more
core   +3 more sources

Classical gluon production amplitude in heavy-ion collisions

EPJ Web of Conferences, 2016
The initial condition for the formation of the Quark-Gluon Plasma, the distribution of quarks and gluons produced in the initial stages of nuclear collisions, is the fundamental building block of heavy-ion theory.
Chirilli Giovanni Antonio
doaj   +1 more source

LHCb Overview [PDF]

EPJ Web of Conferences
The LHCb experiment has a complete heavy ion physics program, including studies of pp, pA, AA, and UPC events delivered by the Large Hadron Collider, along with a rapidly expanding fixed-target capability. With unique acceptance and detector capabilities,
Durham J. Matthew
doaj   +1 more source

|Vub| determination and testing of lepton flavour universality in semileptonic Bc → D(∗) decays

Journal of High Energy Physics, 2020
In light of prospects for measurements of B c  → D (∗) lv decays in the upcoming Upgrade II of the LHC, we show that by using calculated B c  → D (∗) form factors a competitive extraction of the |V ub | CKM matrix element from the B c → Dμ v ¯ μ $$ {B}_c\
Domagoj Leljak, Blaženka Melić
doaj   +1 more source