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SUMMARY:How to bootstrap a Dark Photon
DTSTART;VALUE=DATE-TIME:20261024T075000Z
DTEND;VALUE=DATE-TIME:20261024T081000Z
DTSTAMP;VALUE=DATE-TIME:20261025T021054Z
UID:indico-contribution-3001@indico.itp.ac.cn
DESCRIPTION:Speakers: Álvaro Diaz Carmona (ICTP-AP)\nBootstrapping provid
 es theoretical constraints of the parameter space allowed by the S-matrix 
 properties: analyticity\, unitarity\, crossing symmetry. It has been appli
 ed to constrain different theories without making assumptions about their 
 ultraviolet completions. However\, its application in the forward limit of
  the scattering amplitudes is problematic when considering graviton exchan
 ge.\nIn this talk\, I will review the different approaches for gravity boo
 tstrap\, in the particular case of a Dark Photon model. We will focus on t
 he smearing method\, which replaces the forward limit by a weighted integr
 al over the transfer momentum. This approach has already been applied to t
 he scattering of scalar particles mediated by graviton exchange. The pione
 ering contribution of this work is the implementation into scattering of v
 ector particles\, extending the existing forward-limit bootstrap of spin-1
  particles.\nFrom the phenomenological point of view\, finding bounds for 
 graviton mass and coupling in this setup would help probing models of grav
 itational particle production with vector particles as Dark Matter\, as we
 ll as giving constraints for the quantum gravity swampland.\n\nhttps://ind
 ico.itp.ac.cn/event/427/contributions/3001/
LOCATION:
URL:https://indico.itp.ac.cn/event/427/contributions/3001/
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