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SUMMARY:Long range quantum electrodynamical effects in high energy bremsst
 rahlung
DTSTART:20251113T100000Z
DTEND:20251113T114000Z
DTSTAMP:20260909T073600Z
UID:indico-event-12075@indico.ijclab.in2p3.fr
DESCRIPTION:Speakers: Krzysztof Piotrzkowski\n\nIn everyday research\, it 
 is tacitly assumed that scattering cross sections have fixed values for a 
 given particle species\, center-of-mass energy\, and particle polarization
 . However\, this assumption has been called into question after several ob
 servations of apparent suppression of high-energy bremsstrahlung - the ori
 gin of which will be explained in this talk\, also in relation of this elu
 sive effect to other quantum phenomena occurring over macroscopic distance
 s. Bremsstrahlung\, or small-angle radiative Bhabha scattering\, plays a m
 ajor role in experiments at the present and future colliders\, as SuperKEK
 B\, Electron-Ion Collider [1]\, or FCC-ee [2]\, respectively. That will be
  overviewed and be followed by discussion of a novel proposal to profoundl
 y study these long range effects. Finally\, also possible astrophysical co
 nsquences will be shortly considered. [1] Phys. Rev. D 103\, L051901 (2021
 ) https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.L051901 [2] E
 ur. Phys. J. C 83 (2023) https://link.springer.com/article/10.1140/epjc/s1
 0052-023-11981-2\n\nhttps://indico.ijclab.in2p3.fr/event/12075/
LOCATION:200/0-Auditorium - Auditorium P. Lehmann (IJCLab)
URL:https://indico.ijclab.in2p3.fr/event/12075/
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