Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Quantum Optics and Quantum Information InnsbruckAT973 papers
- Universität InnsbruckAT944 papers
- Institute of High Energy PhysicsCN842 papers
- University of ViennaAT835 papers
- Centre National de la Recherche ScientifiqueFR824 papers
- Space Research InstituteRU796 papers
- European Organization for Nuclear ResearchCH470 papers
- ETH ZurichCH461 papers
- Korea UniversityKR441 papers
- National Taiwan UniversityTW436 papers
- Panjab UniversityIN432 papers
- Sungkyunkwan UniversityKR432 papers
16 papers · 2 filters
Self-interacting dark matter without prejudice
Nicolás Bernal, Xiaoyong Chu, Suchita Kulkarni +1
The existence of dark matter particles that carry phenomenologically relevant self-interaction cross sections mediated by light dark sector states is considered to be severely cons…
Neutrinoless double beta decay versus other probes of heavy sterile neutrinos
Patrick D. Bolton, Frank F. Deppisch, P. S. Bhupal Dev
We make a comparative study of the neutrinoless double beta decay constraints on heavy sterile neutrinos versus other direct and indirect constraints from both lepton number conser…
Charming loops in exclusive rare FCNC -decays
Dmitri Melikhov
Rare -decays induced by flavour-changing neutral currents (FCNC) is one of the promising candidates for probing physics beyond the Standard model. However, for identifying poten…
Multiquark-Adequate QCD Sum Rules: the Case of Flavour-Exotic Tetraquarks
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
Frequently, theoretical discussions of multiquark hadron states prove to be contaminated or even dominated by contributions of conventional hadrons. For the approach to QCD bound s…
Tetraquark-adequate QCD sum rules for quark-exchange processes
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
We consider quark-hadron duality relations and QCD sum rules for correlators involving exotic tetraquark currents, here specializing to the case of quark-exchange processes. We poi…
Ultraviolet Freeze-in and Non-Standard Cosmologies
Nicolás Bernal, Fatemeh Elahi, Carlos Maldonado +1
A notable feature of UV freeze-in is that the relic density is strongly dependent on the highest temperatures of the thermal bath, and a common assumption is that the relevant 'hig…
Searching for a light through Higgs production at the LHC
Frank F. Deppisch, Suchita Kulkarni, Wei Liu
We investigate the potential of LHC resonance searches in leptonic final states to probe the in the minimal model. Considering the current constraints on the …
On the relation between Migdal effect and dark matter-electron scattering in isolated atoms and semiconductors
Rouven Essig, Josef Pradler, Mukul Sholapurkar +1
A key strategy for the direct detection of sub-GeV dark matter is to search for small ionization signals. These can arise from dark matter-electron scattering or when the dark matt…
Cluster reducibility of multiquark operators
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
It is shown that the multiquark gauge-invariant operators can, in general, be decomposed into combinations of products of ordinary hadronic operators, exhibiting their cluster redu…
A Practical and Consistent Parametrization of Dark Matter Self-Interactions
Xiaoyong Chu, Camilo Garcia-Cely, Hitoshi Murayama
Self-interacting dark matter has been proposed to explain the apparent mass deficit in astrophysical small-scale halos, while observations from galaxy clusters suggest that the cor…
Stellar probes of dark sector-photon interactions
Xiaoyong Chu, Jui-Lin Kuo, Josef Pradler +1
Electromagnetically neutral dark sector particles may directly couple to the photon through higher dimensional effective operators. Considering electric and magnetic dipole moment,…
Heavy neutrino production via at the lifetime frontier
Frank F. Deppisch, Suchita Kulkarni, Wei Liu
We investigate the pair production of right-handed neutrinos from the decay of an additional neutral boson in the gauged model. Taking into account current const…
The dispersion method and dimensional regularization applied to the decay
I. Boradjiev, E. Christova, H. Eberl
We have calculated the -loop contribution to the amplitude of the decay in the unitary gauge through the dispersion method and in the gauge using dimensional r…
Probing nonstandard lepton number violating interactions in neutrino oscillations
Patrick D. Bolton, Frank F. Deppisch
We discuss lepton number violating processes in the context of long-baseline neutrino oscillations. We summarise and compare neutrino flavour oscillations in quantum mechanics and…
Tetraquark-adequate formulation of QCD sum rules
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
We study details of QCD sum rules à la Shifman-Vainshtein-Zakharov for exotic tetraquark states. We point out that duality relations for correlators involving exotic currents have…
Finite-size dark matter and its effect on small-scale structure
Xiaoyong Chu, Camilo Garcia-Cely, Hitoshi Murayama
If dark matter has a finite size that is larger than its Compton wavelength, the corresponding self-interaction cross section decreases with the velocity. We investigate the implic…