Results 21 to 30 of about 1,718 (95)
New prospects for the numerical calculation of Mellin-Barnes integrals in Minkowskian kinematics [PDF]
, 2017 During the last several years remarkable progress has been made in numerical calculations of dimensionally regulated multi-loop Feynman diagrams using Mellin-Barnes (MB) representations. The bottlenecks were non-planar diagrams and Minkowskian kinematics.
Dubovyk, Ievgen +4 more
core +3 more sources
Small Flux Superpotentials for Type IIB Flux Vacua Close to a Conifold
Fortschritte der Physik, Volume 68, Issue 11-12, December 2020., 2020 Abstract We generalize the recently proposed mechanism by Demirtas, Kim, McAllister and Moritz[1] for the explicit construction of type IIB flux vacua with to the region close to the conifold locus in the complex structure moduli space. For that purpose tools are developed to determine the periods and the resulting prepotential close to such a ...
Rafael Álvarez‐García +3 more
wiley +1 more source
Unraveling spatiotemporal variability of arbuscular mycorrhizal fungi in a temperate grassland plot
Environmental Microbiology, Volume 22, Issue 3, Page 873-888, March 2020., 2020 Summary Soils provide a heterogeneous environment varying in space and time; consequently, the biodiversity of soil microorganisms also differs spatially and temporally. For soil microbes tightly associated with plant roots, such as arbuscular mycorrhizal fungi (AMF), the diversity of plant partners and seasonal variability in trophic exchanges between
Kezia Goldmann +12 more
wiley +1 more source
Dual parametrization of generalized parton distributions in two equivalent representations [PDF]
, 2014 The dual parametrization and the Mellin-Barnes integral approach represent two frameworks for handling the double partial wave expansion of generalized parton distributions (GPDs) in the conformal partial waves and in the $t$-channel ${\rm SO}(3 ...
Müller, Dieter +2 more
core +2 more sources
On Transformation Involving Basic Analogue of Multivariable H‐Function
Journal of Function Spaces, Volume 2020, Issue 1, 2020., 2020 In this article, fractional order q‐integrals and q‐derivatives involving a basic analogue of multivariable H‐function have been obtained. We give an application concerning the basic analogue of multivariable H‐function and q‐extension of the Leibniz rule for the fractional q‐derivative for a product of two basic functions.
Dinesh Kumar +3 more
wiley +1 more source
The Nuker model for galactic nuclei [PDF]
, 2019 The Nuker profile, characterised by an inner and outer power-law profile smoothly merged around a break radius, is a very popular model to describe the surface brightness profile of galactic nuclei.
Baes, Maarten
core +2 more sources
On a basic integral formula involving Generalized Mellin - Barnes Type of contour integrals
IOSR Journal of Mathematics, 2013 . Abstract: The aim of the present paper is to study some new unified integral formulas associated with ...
openaire +1 more source
New four-dimensional integrals by Mellin-Barnes transform
, 2010 This paper is devoted to the calculation by Mellin-Barnes transform of a especial class of integrals. It contains double integrals in the position space in d = 4-2e dimensions, where e is parameter of dimensional regularization.
Cvetič G. +6 more
core +1 more source
, 2020 Based on the method developed in [K.~H.~Phan and T.~Riemann, Phys.\ Lett.\ B {\bf 791} (2019) 257], detailed analytic results for scalar one-loop two-, three-, four-point integrals in general $d$-dimension are presented in this paper.
Phan, Khiem Hong
core +1 more source
Resummation at finite conformal spin [PDF]
, 2019 We generalize the computation of anomalous dimension and correction to OPE coefficients at finite conformal spin considered recently in \cite{arXiv:1806.10919, arXiv:1808.00612} to arbitrary space-time dimensions.
Cardona, Carlos +3 more
core +2 more sources