The stratification of rigidity
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The stratification of rigidity. / Bourjaily, Jacob L.; Kalyanapuram, Nikhil.
I: Journal of High Energy Physics, Bind 2022, Nr. 11, 084, 15.11.2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - The stratification of rigidity
AU - Bourjaily, Jacob L.
AU - Kalyanapuram, Nikhil
PY - 2022/11/15
Y1 - 2022/11/15
N2 - We show that a master integrand basis exists for all planar, two-loop amplitudes in massless four-dimensional theories which is fully stratified by rigidity - with each integrand being either pure and strictly polylogarithmic or (pure and) strictly elliptic-polylogarithmic, with each of the later involving a single elliptic curve. Such integrands can be said to have definite rigidity.
AB - We show that a master integrand basis exists for all planar, two-loop amplitudes in massless four-dimensional theories which is fully stratified by rigidity - with each integrand being either pure and strictly polylogarithmic or (pure and) strictly elliptic-polylogarithmic, with each of the later involving a single elliptic curve. Such integrands can be said to have definite rigidity.
KW - Scattering Amplitudes
KW - 1/N Expansion
KW - Differential and Algebraic Geometry
KW - FEYNMAN
KW - INTEGRALS
KW - SERIES
U2 - 10.1007/JHEP11(2022)084
DO - 10.1007/JHEP11(2022)084
M3 - Journal article
VL - 2022
JO - Journal of High Energy Physics (Online)
JF - Journal of High Energy Physics (Online)
SN - 1126-6708
IS - 11
M1 - 084
ER -
ID: 327388035