Lifetimes of light stringy states

Autor(en)

Pascal Anastasopoulos, Elias Niederwieser

Abstrakt

In this paper, we evaluate the lifetime of the light stringy states that emerge in intersecting D-brane realisations of the Standard Model. For concreteness, we focus on a light massive scalar decaying into two massless fermions. Given the present experimental lower bounds of the string scale, we extrapolate the lifetime as a function of the intersection angles to very small angles in order to have states with lifetimes of the order of the universe. That provides an alluring example of a massive, very weakly interacting field with a huge lifetime, proposing itself as a potential dark matter candidate.

Organisation(en)

Mathematische Physik

Journal

Nuclear Physics B

Band

978

Anzahl der Seiten

12

ISSN

0550-3213

DOI

https://doi.org/10.1016/j.nuclphysb.2022.115749

Publikationsdatum

05-2022

Peer-reviewed

Ja

ÖFOS 2012

103012 Hochenergiephysik

Schlagwörter

ASJC Scopus Sachgebiete

Nuclear and High Energy Physics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/6f3d1fd0-9f6d-4c17-b05a-589a089b12ec