Zobrazeno 1 - 10
of 691
pro vyhledávání: '"Weinzierl, Stefan"'
Autor:
Jockers, Hans, Kotlewski, Sören, Kuusela, Pyry, McLeod, Andrew J., Pögel, Sebastian, Sarve, Maik, Wang, Xing, Weinzierl, Stefan
It has long been known that the maximal cut of the equal-mass four-loop banana integral is a period of a family of Calabi-Yau threefolds that depends on the kinematic variable $z=m^2/p^2$. We show that it can also be interpreted as a period of a fami
Externí odkaz:
http://arxiv.org/abs/2404.05785
Autor:
Marzucca, Robin, McLeod, Andrew J., Page, Ben, Pögel, Sebastian, Wang, Xing, Weinzierl, Stefan
This talk reviews recent developments in the field of analytical Feynman integral calculations. The central theme is the geometry associated to a given Feynman integral. In the simplest case this is a complex curve of genus zero (aka the Riemann sphe
Externí odkaz:
http://arxiv.org/abs/2401.06360
The Moller experiment and the P2 experiment aim at measuring the weak mixing angle at low scales. The Moller experiment uses $e^- e^- \rightarrow e^- e^-$-scattering, the P2 experiment uses $e^- N \rightarrow e^- N$-scattering. In both cases, two-loo
Externí odkaz:
http://arxiv.org/abs/2312.06773
We discuss how methods developed in the context of perturbation theory can be applied to the computation of lattice correlation functions, in particular in the non perturbative regime. The techniques we consider are integration-by-parts identities (s
Externí odkaz:
http://arxiv.org/abs/2309.09633
In this talk we discuss the construction of a basis of master integrals for the family of the $l$-loop equal-mass banana integrals, such that the differential equation is in an $\varepsilon$-factorised form. As the $l$-loop banana integral is related
Externí odkaz:
http://arxiv.org/abs/2309.07531
The maximal cut of the nonplanar crossed box diagram with all massive internal propagators was long ago shown to encode a hyperelliptic curve of genus 3 in momentum space. Surprisingly, in Baikov representation, the maximal cut of this diagram only g
Externí odkaz:
http://arxiv.org/abs/2307.11497
We present a database of recordings and radiation patterns of individual notes for 41 modern and historical musical instruments, measured with a 32-channel spherical microphone array in anechoic conditions. In addition, directivities averaged in one-
Externí odkaz:
http://arxiv.org/abs/2307.02110
We report on an exact calculation of lattice correlation functions on a finite four-dimensional lattice with either Euclidean or Minkowskian signature. The lattice correlation functions are calculated by the method of differential equations. This met
Externí odkaz:
http://arxiv.org/abs/2305.05447
Publikováno v:
IEEE/ACM Trans. Audio Speech and Lang. Proc., 31, 3783--3799 (2023)
Head-related transfer functions (HRTFs) are essential for virtual acoustic realities, as they contain all cues for localizing sound sources in three-dimensional space. Acoustic measurements are one way to obtain high-quality HRTFs. To reduce measurem
Externí odkaz:
http://arxiv.org/abs/2303.09966
Autor:
Frellesvig, Hjalte, Weinzierl, Stefan
Publikováno v:
SciPost Phys. 16, 150 (2024)
We investigate $\varepsilon$-factorised differential equations, uniform transcendental weight and purity for Feynman integrals. We are in particular interested in Feynman integrals beyond the ones which evaluate to multiple polylogarithms. We show th
Externí odkaz:
http://arxiv.org/abs/2301.02264