Results 1 to 10 of about 687,654 (148)

Toward the pole [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We study the analytic structure of semiclassical conformal blocks, namely of the 1-point conformal block on the torus and of the 4-point conformal block on the sphere, as functions of the intermediate dimension. We interpret their discontinuities, which can be revealed with the use of a particular resummation procedure ...
Alekseev, S., Gorsky, A., Litvinov, M.
openaire   +4 more sources

Effects of Backpack Load and Trekking Poles on Energy Expenditure During Field Track Walking [PDF]

open access: yes, 2018
This study evaluates the effects of the use of backpack load and trekking poles on feld track walking energy expenditure. Twenty male volunteer pole walkers (age: 22.70 ± 2.89 years; body mass: 77.90 ± 11.19 kg; height: 1.77 ± 0.06 m; percentage of body ...
Brito, João   +4 more
core   +1 more source

Shadow poles in a coupled-channel problem calculated with Berggren basis [PDF]

open access: yes, 2018
In coupled-channel models the poles of the scattering S-matrix are located on different Riemann sheets. Physical observables are affected mainly by poles closest to the physical region but sometimes shadow poles have considerable effect, too. The purpose
Betan, R. M. Id   +2 more
core   +4 more sources

Time Delay and Time Advance in Resonance Theory [PDF]

open access: yes, 2006
We propose a theory of the resonance-antiresonance scattering process which differs considerably from the classical one (the Breit-Wigner theory), which is commonly used in the phenomenological analysis.
Afzal   +43 more
core   +2 more sources

Pole-to-pole ocean viromes [PDF]

open access: yesNature Methods, 2019
A global-scale survey of the ocean viral metagenome (virome) broadens views on marine viruses and their roles in ecosystems.
openaire   +2 more sources

The horizon of the lightest black hole [PDF]

open access: yes, 2015
We study the properties of the poles of the resummed graviton propagator obtained by resumming bubble matter diagrams which correct the classical graviton propagator. These poles have been previously interpreted as black holes precursors.
Calmet, Xavier, Casadio, Roberto
core   +2 more sources

Composite Rational Functions and Arithmetic Progressions [PDF]

open access: yes, 2017
In this paper we deal with composite rational functions having zeros and poles forming consecutive elements of an arithmetic progression. We also correct a result published earlier related to composite rational functions having a fixed number of zeros ...
Tengely, Szabolcs
core   +2 more sources

Light Quarks, Zero Modes, and Exceptional Configurations [PDF]

open access: yes, 1997
In continuum QCD, nontrivial gauge topologies give rise to zero eigenvalues of the massless Dirac operator. In lattice QCD with Wilson fermions, these zero modes appear as exactly real eigenvalues of the Wilson-Dirac operator and hence as poles in the ...
Bardeen, W.   +4 more
core   +2 more sources

Resummation of classical and semiclassical periodic orbit formulas

open access: yes, 1993
The convergence properties of cycle expanded periodic orbit expressions for the spectra of classical and semiclassical time evolution operators have been studied for the open three disk billiard.
Eckhardt, Bruno, Russberg, Gunnar
core   +1 more source

Pluricomplex Green and Lempert functions for equally weighted poles

open access: yes, 2002
For $\Omega$ a domain in $\mathbb C^n$, the pluricomplex Green function with poles $a_1, ...,a_N \in \Omega$ is defined as $G(z):=\sup \{u(z): u\in PSH_-(\Omega), u(x)\le \log \|x-a_j\|+C_j \text{when} x \to a_j, j=1,...,N \}$.
A. Edigarian   +16 more
core   +1 more source

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