RT Journal Article
T1 Mapping collinear in-medium parton splittings
A1 Domínguez, Fabio
A1 Milhano, José Guilherme Teixeira da Almeida
A1 Salgado López, Carlos Alberto
A1 Tywoniuk, Konrad
A1 Vila Pérez, Víctor
AB We map the spectrum of 1→2 parton splittings inside a medium characterized by a transport coefficient q^ onto the kinematical Lund plane, taking into account the finite formation time of the process. We discuss the distinct regimes arising in this map for in-medium splittings, pointing out the close correspondence to a semi-classical description in the limit of hard, collinear radiation with short formation times. Although we disregard any modifications of the original parton kinematics in course of the propagation through the medium, subtle modifications to the radiation pattern compared to the vacuum baseline can be traced back to the physics of color decoherence and accumulated interactions in the medium. We provide theoretical support to vacuum-like emissions inside the medium by delimiting the regions of phase space where it is dominant, identifying also the relevant time-scales involved. The observed modifications are shown to be quite general for any dipole created in the medium.
PB Springer
SN 1434-6044
YR 2020
FD 2020
LK http://hdl.handle.net/10347/21874
UL http://hdl.handle.net/10347/21874
LA eng
NO Domínguez, F., Milhano, J.G., Salgado, C.A. et al. Mapping collinear in-medium parton splittings. Eur. Phys. J. C 80, 11 (2020). https://doi.org/10.1140/epjc/s10052-019-7563-0
NO KT is supported by a Starting Grant from Trond Mohn Foundation (BFS2018REK01) and the University of Bergen. VV is supported by the Spanish FPU Fellowship FPU16/02236; CAS and VV are supported by Ministerio de Ciencia e Innovación of Spain under project FPA2017-83814-P and Unidad de Excelencia María de Maetzu under project MDM-2016-0692, by Xunta de Galicia (Consellería de Educación) and FEDER. JGM is supported by Fundação para a Ciência e a Tecnologia (Portugal) under project CERN/FIS-PAR/0022/2017
DS Minerva
RD 29 abr 2026