K. Hasegawa

activity

20062023

most citedThe Mass Spectrum of the First Stars

312 citations · 1.7k across the 44 of their papers we have counts for

collaborators

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4 papers · 1 filter

hep-ph2010★ 4 cited

Super AutoDipole

K. Hasegawa

The publicly available package for an automated dipole subtraction, AutoDipole, is extended to include the SUSY dipoles in the MSSM. All fields in the SM and the MSSM are available…

hep-ph2008★ 21 cited

Automating dipole subtraction

K. Hasegawa, S. Moch, P. Uwer

We report on automating the Catani-Seymour dipole subtraction which is a general procedure to treat infrared divergences in real emission processes at next-to-leading order in QCD.…

hep-ph2007

Coulomb force correction to the decay b -> c anti-c s in the threshold

K. Hasegawa

We study the physical origins of the $O (a l p h a_{s})$ and $O (a l p h a_{s}^{2})$ corrections to the $ba r c - s$ current in the decay $b - > c ba r c s$ in the threshold region $delta=(M_{b…

hep-ph2006

Large mass expansion in two-loop QCD corrections of para-charmonium decay

K. Hasegawa, Alexey Pak

We calculate the two-loop QCD corrections to paracharmonium decays $e t a_{c} r i g h t a r r o w g amma g amma$ and $e t a_{c} r i g h t a r r o w g g$ involving light-by-light scattering diagrams with l…