TY - JOUR
T1 - The quintuplet annihilation spectrum
AU - Baumgart, Matthew
AU - Rodd, Nicholas L.
AU - Slatyer, Tracy R.
AU - Vaidya, Varun
N1 - Publisher Copyright:
© 2024, The Author(s).
PY - 2024/1
Y1 - 2024/1
N2 - We extend the Effective Field Theory of Heavy Dark Matter to arbitrary odd representations of SU(2) and incorporate the effects of bound states. This formalism is then deployed to compute the gamma-ray spectrum for a 5 of SU(2): quintuplet dark matter. Except at isolated values of the quintuplet mass, the bound state contribution to hard photons with energy near the dark-matter mass is at the level of a few percent compared to that from direct annihilation. Further, compared to smaller representations, such as the triplet wino, the quintuplet can exhibit a strong variation in the shape of the spectrum as a function of mass. Using our results, we forecast the fate of the thermal quintuplet, which has a mass of ~13.6 TeV. We find that existing H.E.S.S. data should be able to significantly test the scenario, however, the final word on this canonical model of minimal dark matter will likely be left to the Cherenkov Telescope Array (CTA).
AB - We extend the Effective Field Theory of Heavy Dark Matter to arbitrary odd representations of SU(2) and incorporate the effects of bound states. This formalism is then deployed to compute the gamma-ray spectrum for a 5 of SU(2): quintuplet dark matter. Except at isolated values of the quintuplet mass, the bound state contribution to hard photons with energy near the dark-matter mass is at the level of a few percent compared to that from direct annihilation. Further, compared to smaller representations, such as the triplet wino, the quintuplet can exhibit a strong variation in the shape of the spectrum as a function of mass. Using our results, we forecast the fate of the thermal quintuplet, which has a mass of ~13.6 TeV. We find that existing H.E.S.S. data should be able to significantly test the scenario, however, the final word on this canonical model of minimal dark matter will likely be left to the Cherenkov Telescope Array (CTA).
KW - Models for Dark Matter
KW - Particle Nature of Dark Matter
UR - http://www.scopus.com/inward/record.url?scp=85183388826&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85183388826&partnerID=8YFLogxK
U2 - 10.1007/JHEP01(2024)158
DO - 10.1007/JHEP01(2024)158
M3 - Article
AN - SCOPUS:85183388826
SN - 1029-8479
VL - 2024
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 1
M1 - 158
ER -