Blar i UiS Brage på forfatter "Kolesova, Helena"
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Anomaly-Induced Inhomogeneous Phase in Quark Matter without the Sign Problem
Brauner, Tomas; Filios, Georgios; Kolesova, Helena (Peer reviewed; Journal article, 2019)We demonstrate the existence of an anomaly-induced inhomogeneous phase in a class of vectorlike gauge theories without the sign problem, thus disproving the long-standing conjecture that the absence of the sign problem ... -
Chiral soliton lattice in QCD-like theories
Brauner, Tomas; Filios, Georgios; Kolesova, Helena (Peer reviewed; Journal article, 2019)Recently, it has been shown that the ground state of quantum chromodynamics (QCD) in suffciently strong magnetic fields and at moderate baryon number chemical potential carries a crystalline condensate of neutral pions: ... -
Chiral soliton lattice phase in warm QCD
Brauner, Tomas; Kolesova, Helena; Yamamoto, Naoki (Peer reviewed; Journal article, 2021-11)We analyze the phase diagram of quantum chromodynamics at low-to-moderate temperature, baryon chemical potential and external magnetic field within chiral perturbation theory at next-to-leading order of the derivative ... -
Collider phenomenology of a unified leptoquark model
Faber, T.; Liu, Y.; Porod, W.; Hudec, M.; Malinsky, M.; Staub, F.; Kolesova, Helena (Peer reviewed; Journal article, 2020-05)We demonstrate that in a recently proposed unified leptoquark model based on the gauge group SU(4)C×SU(2)L×U(1) R significant deviations from the Standard Model values of R K and R K ∗ can be accommodated without any need ... -
Flavor structure of GUTs and uncertainties in proton lifetime estimates
Kolesova, Helena; Malinsky, Michal (Peer reviewed; Journal article, 2019)We study the flavor aspects of proton lifetime estimates in simple grand-unified models, paying particular attention to their inherent fragility due to the notorious lack of control of some of the key parameters governing ... -
Gauged Wess-Zumino terms for a general coset space
Brauner, Tomas; Kolesova, Helena (Peer reviewed; Journal article, 2019)The low-energy physics of systems with spontaneously broken continuous symmetry is dominated by the ensuing Nambu-Goldstone bosons. It has been known for half a century how to construct invariant Lagrangian densities for ... -
No room to hide: implications of cosmic-ray upscattering for GeV-scale dark matter
Alvey, James; Bringmann, Torsten; Kolesova, Helena (Peer reviewed; Journal article, 2023)The irreducible upscattering of cold dark matter by cosmic rays opens up the intriguing possibility of detecting even light dark matter in conventional direct detection experiments or underground neutrino detectors. The ... -
The dark matter freeze out and beyond
Vangen, Liva Sandvin (Master thesis, 2022)Evidence of the existence of dark matter has been found due to deviations of gravitational motion of astronomical objects. We want to investigate the dark matter topic, which is constantly evolving due to the fast development ... -
Weakly interacting dark matter miracle
Norli, Stine Aunøien (Bachelor thesis, 2022)Dark matter is currently actively searched for in particle physics. In this thesis the weakly interacting massive particles (WIMPs) are looked at as possible dark matter candidates. The thesis focus on the mechanism called ...