Results 21 to 30 of about 1,362 (179)

Improved nonrelativistic QCD for heavy-quark physics [PDF]

Physical Review D, 1992
40 pages, 2 figures (not included), in ...
Lepage, G. P., Magnea, L., Nakhleh, C., Magnea, U., Hornbostel, K.   +4 more
openaire   +3 more sources

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

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

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

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

Sizable time-reversal violating effects in bottom baryon decays

Journal of High Energy Physics, 2022
We study time-reversal (T) asymmetries in the charmless two-body decays of antitriplet bottom baryons. We find that in B b → B n P with B b = ( Ξ b − $$ {\Xi}_b^{-} $$ , Ξ b 0 $$ {\Xi}_b^0 $$ , Λ b ) and B n (P) a octet baryon (pseudoscalar meson), the ...
Chia-Wei Liu, Chao-Qiang Geng
doaj   +1 more source

Status of heavy quark physics on the lattice [PDF]

Nuclear Physics B - Proceedings Supplements, 1999
The status of lattice calculations of some phenomenology of heavy quarks is presented. Emphasis is on progress made in calculating those quantities relevant to estimating parameters of the quark mixing matrix, namely leptonic decay constants, the bag parameter of neutral $B$ mixing, and semileptonic form factors.
openaire   +2 more sources

Heavy-light mesons from a flavour-dependent interaction

Physics Letters B
We introduce a new framework for the physics of heavy-light mesons, whose key element is the effective incorporation of flavour-dependent contributions into the corresponding bound-state and quark gap equations.
Fei Gao, Angel S. Miramontes, Joannis Papavassiliou, Jan M. Pawlowski   +3 more
doaj   +1 more source

Phenomenological study of heavy hadron lifetimes

Journal of High Energy Physics, 2018
The lifetimes of bottom and charmed hadrons are analyzed within the framework of the heavy quark expansion (HQE). Lifetime differences arise from the spectator effects such as weak W-annihilation and Pauli interference. Spectator effects originating from
Hai-Yang Cheng
doaj   +1 more source