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DISCRETE 2022

Nov 7 – 11, 2022
Kongresshaus Baden-Baden
Europe/Berlin timezone

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Session

Light new particles

LP
Nov 9, 2022, 2:00 PM
Sitzungsraum 10

Sitzungsraum 10

Conveners

Light new particles

  • Chair: Alexey Lokhov (KIT)

Presentation materials

There are no materials yet.

  1. 66. On Discrete Goldstone Bosons
    Victor Enguita-Vileta (Universidad Autónoma de Madrid)
    11/9/22, 2:00 PM
    All
    Talk

    Exact discrete symmetries, if non-linearly realized, can protect a given theory against ultraviolet sensitivity. Quadratic divergences can cancel exactly, while the lightest scalars stemming from spontaneous symmetry breaking are massive without breaking the symmetry. This is at variance with non-linearly realized continuous symmetries, for which the masses of pseudo-Goldstone bosons require...

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  2. 103. Consistent Kinetic Mixing
    Patrick Foldenauer (IFT Madrid)
    11/9/22, 2:15 PM
    All
    Talk

    Extensions of the Standard Model (SM) with new Abelian
    gauge groups allow for kinetic mixing between the new gauge bosons and the
    hypercharge gauge boson, resulting in mixing with the photon. In many models the
    mixing with the hypercharge gauge boson captures only part of the kinetic mixing
    term with the photon, since the new gauge bosons can also mix with the neutral
    component of the...

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  3. 83. The importance of quantum loops for astrophysical ALPs
    Eike Müller (Stockholm University)
    11/9/22, 2:30 PM
    All
    Talk

    We investigate the effect of quantum loops on the theory of
    axionlike particles (ALPs) coupled to electrons. Contrary to some statements in the
    recent literature, the effective ALP-photon coupling induced by an electron loop
    can be sizeable in the plasma of a supernova. We define a general effective
    coupling that depends on the kinematics of the specific process in which an ALP
    scatters,...

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