BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Rudi Rahn - The azimuthal decorrelation in V+jet production and th
 e Winner-Takes-All axis - Rudi Rahn (Amsterdam U)
DTSTART:20221118T160000Z
DTEND:20221118T170000Z
UID:TALK178241@talks.cam.ac.uk
CONTACT:Maeve Madigan
DESCRIPTION:The seminar takes place in person in the Potter Room at DAMPT 
 and a broadcast is available via zoom: https://us02web.zoom.us/j/858966935
 92?pwd=cDBJMVJJNlkwcG9FWFBJNTJmTTJyQT09\n\n\nAbstract: The azimuthal decor
 relation between a vector boson and a jet is an essential hard probe in hi
 gh energy proton-proton and heavy-ion collisions. It suffers from large lo
 garithms in the back-to-back limit\, which can be resummed using Soft-Coll
 inear Effective Theory. In this talk I will demonstrate that a suitable ch
 oice of jet recombination\, the Winner-Takes-All recombination scheme\, si
 mplifies the observable tremendously and allows us to derive resummed pred
 ictions at next-to-next-to-leading logarithmic accuracy\, while maintainin
 g a rich selection of theoretically interesting features. We find for exam
 ple that linearly polarised collinear functions must be included\, and tha
 t the observable can be measured with minimal impact on particle tracks. F
 inally\, I will contrast the azimuthal decorrelation with a closely relate
 d observable\, the radial decorrelation\, to motivate why the former is so
  theoretically accessible\, and will comment on the potential impact of fa
 ctorisation breaking effects mediated by Glauber gluons. 
LOCATION:Potter Room (B1.19)
END:VEVENT
END:VCALENDAR