Results 21 to 30 of about 121,798 (207)

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

Intrinsic bottom and its impact on heavy new physics at the LHC

EPJ Web of Conferences, 2016
Heavy quark parton distribution functions (PDFs) play an important role in several Standard Model and New Physics processes. Most analyses rely on the assumption that the charm and bottom PDFs are generated perturbatively by gluon splitting and do not ...
Lyonnet Florian
doaj   +1 more source

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

Heavy-quark physics

The European Physical Journal A, 2003
Recent advances as well as some problems in physics of bottom and top quarks are discussed.
  +6 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

A Few Aspects of Heavy Quark Expansion [PDF]

, 2000
Two topics in heavy quark expansion are discussed. The heavy quark potential in perturbation theory is reviewed in connection to the problem of the heavy quark mass.
Bjorken J D, Bloch D, Brambilla N, de Fazio F, Morenas V, Nikolai Uraltsev, Nussinov S, Uraltsev N, Uraltsev N, Uraltsev N, Uraltsev N, Uraltsev N, Vainshtein A, Vainshtein A   +13 more
core   +3 more sources

Heavy quark physics in N = 2 QCD [PDF]

Nuclear Physics B - Proceedings Supplements, 1999
3 pages Latex, 3 eps figures. Uses espcrc2.sty and epsf.sty . To appear in the Proceedings of Lattice 98 (Heavy Quarks)
CP-PACS, Collaboration, Aoki, S, Burkhalter, R, Ejiri, S, Fukugita, M, Hashimoto, S, Iwasaki, Y, Kanaya, K, Kaneko, T, Kuramashi, Y, Nagai, K, Okawa, Masanori, Shanahan, H. P., Ukawa, A, Yoshié, T   +14 more
openaire   +4 more sources

Charged and neutral B ¯ u , d , s $$ {\overline{B}}_{u,d,s} $$ → γ form factors from light cone sum rules at NLO

Journal of High Energy Physics, 2021
We present the first analytic O α s $$ \mathcal{O}\left({\alpha}_s\right) $$ -computation at twist-1,2 of the B ¯ u , d , s $$ {\overline{B}}_{u,d,s} $$ → γ form factors within the framework of sum rules on the light-cone. These form factors describe the
Tadeusz Janowski, Ben Pullin, Roman Zwicky   +2 more
doaj   +1 more source