dr hab. Sebastian Sapeta (IFJ PAN): Soft singularities of two-loop QCD amplitudes with external massive quarks

Name: dr hab. Sebastian Sapeta (IFJ PAN): Soft singularities of two-loop QCD amplitudes with external massive quarks
Start: 2024-10-11T10:15:00+02:00
End: 2024-10-11T11:00:00+02:00
Location: No location set

Friday Oct 11, 2024, 10:15 AM → 11:00 AM Europe/Warsaw

Description

Abstract:

I will report on progress of calculation of the two-loop correction to the soft-gluon current for the case of two massive final-state quarks. This quantity is process-independent and governs the singular behavior of massive QCD amplitudes when one external gluon becomes soft. The two-loop massive soft current is a necessary ingredient for evaluation of N3LO corrections to cross sections for processes with massive fermions produced at hadron colliders.

Important: This seminar is held in building D-11 room 104.

Organized by

Prof. dr hab. Wojciech Broniowski (IFJ PAN, UJK)
Prof. dr hab. Danuta Kisielewska (AGH)
Prof. dr hab. inż. Iwona Grabowska-Bołd (AGH)

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dr hab. Sebastian Sapeta (IFJ PAN): Soft singularities of two-loop QCD amplitudes with external massive quarks