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pro vyhledávání: '"Langaeble, Kasper"'
We present an extension of chiral perturbation theory that explicitly includes an isosinglet scalar in the Lagrangian. The dynamical effects from the scalar state is of phenomenological relevance in theories where the mass of the isosinglet scalar is
Externí odkaz:
http://arxiv.org/abs/1810.11993
Publikováno v:
Phys. Rev. D 97, 095040 (2018)
We consider dark matter as Strongly Interacting Massive Particles (SIMPs) in a hidden sector, thermally decoupled from the Standard Model heat bath. Due to its strong interactions, the number-changing processes of the SIMP lead to its thermalization
Externí odkaz:
http://arxiv.org/abs/1803.07518
Autor:
Hansen, Frederik F., Janowski, Tadeusz, Langaeble, Kasper, Mann, Robert B., Sannino, Francesco, Steele, Tom G., Wang, Zhi-Wei
Publikováno v:
Phys. Rev. D 97, 065014 (2018)
We determine the phase diagram of complete asymptotically free SU($N_c$) gauge theories featuring $N_s$ complex scalars and $N_f$ Dirac quarks transforming according to the fundamental representation of the gauge group. The analysis is performed at t
Externí odkaz:
http://arxiv.org/abs/1706.06402
Publikováno v:
Phys. Rev. D 95, 036005 (2017)
We augment the chiral Lagrangian by an isosinglet scalar and compute the one-loop radiative corrections to the pion mass and decay constant, as well as the scalar mass. The calculations are carried out for different patterns of chiral symmetry breaki
Externí odkaz:
http://arxiv.org/abs/1610.02904
Dark matter that gets captured in the Sun may form positronium-like bound states if it self-interacts via light dark photons. In this case, dark matter can either annihilate to dark photons or recombine in bound states which subsequently also decay t
Externí odkaz:
http://arxiv.org/abs/1607.00374
We present the phase diagram and associated fixed points for a wide class of Gauge-Yukawa theories in $d=4+\epsilon$ dimensions. The theories we investigate involve non-abelian gauge fields, fermions and scalars in the Veneziano-Witten limit. The ana
Externí odkaz:
http://arxiv.org/abs/1603.03462
Publikováno v:
Phys. Rev. D 94, 053013 (2016)
We define the theoretical framework and deduce the conditions under which multi-messenger astronomy can provide useful information about neutrino masses and their ordering. The framework uses time differences between the arrival of neutrinos and the
Externí odkaz:
http://arxiv.org/abs/1603.00230
Publikováno v:
Phys. Rev. D 92, 075036 (2015)
We investigate the phenomenological viability of a recently proposed class of composite dark matter models where the relic density is determined by 3 to 2 number-changing processes in the dark sector. Here the pions of the strongly interacting field
Externí odkaz:
http://arxiv.org/abs/1507.01590
Akademický článek
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Autor:
Langæble, Kasper1 langaeble@cp3.sdu.dk, Meroni, Aurora1 meroni@cp3.sdu.dk, Sannino, Francesco1 sannino@cp3.dias.sdu.dk
Publikováno v:
Physical Review D: Particles, Fields, Gravitation & Cosmology. 9/1/2016, Vol. 94 Issue 5, p1-1. 1p.
