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Search: authors:"Markus A. Ebert"

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Resummation improved rapidity spectrum for gluon fusion Higgs production

Gluon-induced processes such as Higgs production typically exhibit large perturbative corrections. These partially arise from large virtual corrections to the gluon form factor, which at timelike momentum transfer contains Sudakov logarithms evaluated at negative arguments ln2(−1) = −π 2. It has been observed that resumming these terms in the timelike form factor leads to a much ...

Resummation of transverse momentum distributions in distribution space

Differential spectra in observables that resolve additional soft or collinear QCD emissions exhibit Sudakov double logarithms in the form of logarithmic plus distributions. Important examples are the total transverse momentum q T in color-singlet production, N -jettiness (with thrust or beam thrust as special cases), but also jet mass and more complicated jet substructure ...