Results 31 to 40 of about 23,348 (198)

Notes on AdS-Schwarzschild eikonal phase

open access: yesJournal of High Energy Physics, 2021
We consider the eikonal phase associated with the gravitational scattering of a highly energetic light particle off a very heavy object in AdS spacetime.
Andrei Parnachev, Kallol Sen
doaj   +1 more source

The casuality and/or energy-momentum conservation constraints on QCD amplitudes in small x regime [PDF]

open access: yes, 2006
The causality and/or the energy-momentum constraints on the amplitudes of high energy processes are generalized to QCD. The constraints imply that the energetic parton may experience at most one inelastic collision only and that the number of the ...
B. Blok   +16 more
core   +2 more sources

Classical vs quantum eikonal scattering and its causal structure

open access: yesJournal of High Energy Physics, 2023
We study the eikonal scattering of two gravitationally interacting bodies, in the regime of large angular momentum and large center of mass energy. We show that eikonal exponentiation of the scattering phase matrix is a direct consequence of the group ...
Brando Bellazzini   +2 more
doaj   +1 more source

Conformal Symmetry in Matrix Model beyond the Eikonal Approximation [PDF]

open access: yes, 1999
Recently, it was shown by Jevicki, Kazama and Yoneya (JKY) that the Super-Yang-Mills theories (SYM) in $D\leq 4$ can reproduce the conformal symmetry of the near-horizon geometry of the D-brane solutions.
Banks   +6 more
core   +2 more sources

On population extinction risk in the aftermath of a catastrophic event

open access: yes, 2008
We investigate how a catastrophic event (modeled as a temporary fall of the reproduction rate) increases the extinction probability of an isolated self-regulated stochastic population.
Alex Kamenev   +8 more
core   +1 more source

Eikonal zeros in the momentum transfer space from proton-proton scattering: An empirical analysis

open access: yes, 2008
By means of improved empirical fits to the differential cross section data on $pp$ elastic scattering at $19.4 \le\sqrt{s}\le 62.5$ GeV and making use of a semi-analytical method, we determine the eikonal in the momentum transfer space (the inverse ...
Gleb Wataghin, M. J. Menon, R. F. Ávila
core   +2 more sources

Small x physics beyond eikonal approximation: an effective Hamiltonian approach

open access: yesJournal of High Energy Physics, 2023
Understanding the spin structure of hadrons in the small x regime is an important direction to unravel the spin puzzle in hadronic physics. To include spin degrees of freedom in the small x regime requires going beyond the usual eikonal approximation in ...
Ming Li
doaj   +1 more source

Seismic imaging of the critical zone of dolerite dykes at Cap Fréhel in Brittany (France)

open access: yesNear Surface Geophysics, EarlyView.
Abstract In June 2023, we measured ten near‐surface seismic profiles to image the critical zone of dolerite (diabase) dykes that cut the sandstone at Cap Fréhel in Brittany (France). Seismic ray tracing and inversion are used to determine the thickness of the regolith layer from first‐arrival P‐wave traveltimes.
M. Zillmer   +4 more
wiley   +1 more source

Massive double copy in the high-energy limit

open access: yesJournal of High Energy Physics, 2022
The exploration of the massive double copy is still in its infancy, and only a few examples in limited contexts are known. In this paper, we analyze the newly discovered double copy for topologically massive theories beyond tree-level amplitudes in the ...
Mariana Carrillo González   +2 more
doaj   +1 more source

Diagrammatic Exponentiation for Products of Wilson Lines

open access: yes, 2010
We provide a recursive diagrammatic prescription for the exponentiation of gauge theory amplitudes involving products of Wilson lines and loops. This construction generalizes the concept of webs, originally developed for eikonal form factors and cross ...
Mitov, Alexander   +2 more
core   +1 more source

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