Results 51 to 60 of about 4,739,194 (334)
Heavy-to-light form factors: sum rules on the light cone and beyond [PDF]
, 2007 We report the first systematic analysis of the off-light-cone effects in sum rules for heavy-to-light form factors. These effects are investigated in a model based on scalar constituents, which allows a technically rather simple analysis but has the ...
D. Melikhov +6 more
core +2 more sources
Physics Letters B, 1971 Abstract An improved light-cone expansion is obtained by explicitly summing up towers of derivative operators which transform irreducibly under the conformal algebra. The improved expansion explicitly exhibits the causality restrictions and conformal invariance on the light cone.
S. FERRARA, A. F. GRILLO, R. GATTO
openaire +1 more source
Journal of High Energy Physics, 2019 N $$ \mathcal{N} $$ -extended massless arbitrary integer and half-integer spin supermultiplets in four dimensional flat space are studied in the framework of light-cone gauge formalism.
R.R. Metsaev
doaj +1 more source
Higher-order kinematical effects in deeply virtual Compton scattering
Journal of High Energy Physics, 2021 We study the deeply virtual Compton scattering cross-section in twist-two generalized parton distribution (GPD) approximation, and show that different choices of light-cone vectors and gauges for the final photon polarization will lead to different ...
Yuxun Guo, Xiangdong Ji, Kyle Shiells
doaj +1 more source
Measurement of Light-Cone Wave Functions by Diffractive Dissociation [PDF]
, 2000 Diffractive dissociation of particles can be used to study their light-cone wave function. Results from Fermilab experiment E791 for diffractive dissociation of 500 GeV/c $\pi^-$ mesons into di-jets are presented.
Aitala +24 more
core +4 more sources
STILL IN LIGHT-CONE SUPERSPACE [PDF]
International Journal of Modern Physics A, 2010 The recently formulated Bagger-Lambert-Gustavsson (BLG) theory in three dimensions is described in terms of a constrained chiral superfield in light-cone superspace. We discuss the use of Superconformal symmetry to determine the form of its interactions, in complete analogy with N = 4 SuperYang-Mills in four dimensions.
openaire +3 more sources
Einstein’s equations from the stretched future light cone [PDF]
Physical Review D, 2017 We define the stretched future light cone, a timelike hypersurface composed of the worldlines of radially accelerating observers with constant and uniform proper acceleration.
M. Parikh, Andrew Svesko
semanticscholar +1 more source
Light-Front QCD in Light-Cone Gauge [PDF]
, 2000 The light-front (LF) quantization of QCD in light-cone (l.c.) gauge is discussed. The Dirac method is employed to construct the LF Hamiltonian and theory quantized canonically.
Brodsky, Stanley J., Srivastava, Prem P.
core +4 more sources
Light cone in a quantum spacetime
Physics Letters B, 2018 Noncommutative spacetimes are a proposed effective description of the low-energy regime of Quantum Gravity. Defining the microcausality relations of a scalar quantum field theory on the κ-Minkowski noncommutative spacetime allows us to define for the ...
Flavio Mercati, Matteo Sergola
doaj +1 more source
Light-cone quantization of scalar field on time-dependent backgrounds
European Physical Journal C: Particles and Fields, 2022 We discuss what is light-cone quantization on a curved spacetime also without a null Killing vector. Then we consider as an example the light-cone quantization of a scalar field on a background with a Killing vector and the connection with the second ...
Andrea Arduino, Igor Pesando
doaj +1 more source