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
23 papers · 2 filters
The Spinless Relativistic Hellmann Problem
Wolfgang Lucha, Franz F. Schöberl
We compile some easily deducible information on the discrete eigenvalue spectra of spinless Salpeter equations encompassing, besides a relativistic kinetic term, interactions which…
Cosmological beam dump: constraints on dark scalars mixed with the Higgs boson
Anthony Fradette, Maxim Pospelov, Josef Pradler +1
Precision cosmology provides a sensitive probe of extremely weakly coupled states due to thermal freeze-in production, with subsequent decays impacting physics during well-tested c…
Correlation between the decays in the MSSM with quark flavour violation
H. Eberl, K. Hidaka, E. Ginina
We study the loop-induced decays and in the Minimal Supersymmetric Standard Model (MSSM) with quark flavour violation (QFV), identifying with…
SModelS v1.2: long-lived particles, combination of signal regions, and other novelties
Federico Ambrogi, Juhi Dutta, Jan Heisig +8
SModelS is an automatised tool enabling the fast interpretation of simplified model results from the LHC within any model of new physics respecting a symmetry. With…
Light dark states with electromagnetic form factors
Xiaoyong Chu, Josef Pradler, Lukas Semmelrock
New particles that are electrically neutral but couple to the electromagnetic current via higher-dimensional operators and that are sufficiently light, at or below the GeV-mass…
Neutrinoless Double- Decay with Nonstandard Majoron Emission
Ricardo Cepedello, Frank F. Deppisch, Lorena González +2
We present a novel mode of neutrinoless double beta decay with emission of a light Majoron-like scalar particle phi. We assume it couples via an effective seven-dimensional operato…
Strong Isospin Breaking in the Decay Constants of Heavy-Light Mesons from Local-Duality QCD Sum Rules
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
We explore, by a rather peculiar limit of QCD sum rules subject to a Borel transformation (realized by allowing the related Borel mass parameter to approach infinity), how the smal…
Are there narrow flavor-exotic tetraquarks in large- QCD?
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
A salient feature shared by all tetraquark candidates observed in experiment is the absence of flavor-exotic states of the type , with four different quark flavor…
Open-Flavour Mesons from the Angle of Bethe, Dyson, Salpeter, Schwinger, et al
Thomas Hilger, María Gómez-Rocha, Andreas Krassnigg +1
Recently, we completed a comprehensive investigation of a huge part of the entire meson spectrum by considering both quarkonia and open-flavour mesons by means of a single common f…
Velocity Dependence from Resonant Self-Interacting Dark Matter
Xiaoyong Chu, Camilo Garcia-Cely, Hitoshi Murayama
The dark matter density distribution in small-scale astrophysical objects may indicate that dark matter is self-interacting, while observations from clusters of galaxies suggest th…
Limits on Dark Matter Effective Field Theory Parameters with CRESST-II
G. Angloher, P. Bauer, A. Bento +42
CRESST is a direct dark matter search experiment, aiming for an observation of nuclear recoils induced by the interaction of dark matter particles with cryogenic scintillating calc…
The Simplified Likelihood Framework
Andy Buckley, Matthew Citron, Sylvain Fichet +3
We discuss the simplified likelihood framework as a systematic approximation scheme for experimental likelihoods such as those originating from LHC experiments. We develop the simp…
Strong Isospin Breaking in Heavy-Meson Decay Constants: Employing Borelized QCD Sum Rules in Local-Duality Limit
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
Applying the QCD sum-rule machinery in the so-called local-duality shape to heavy-light mesons reveals that, as a consequence of the non-zero mass gap between up and down quarks, t…
Exotic Tetraquark Mesons in Large- Limit: an Unexpected Great Surprise
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
Two-ordinary-meson scattering in large- QCD implies consistency criteria for intermediate-tetraquark contributions. Their fulfilment at -leading order constrains the natu…
Long-distance QCD effects in FCNC decays
Anastasiia Kozachuk, Dmitri Melikhov, Nikolai Nikitin
This presentation reviews the main results of our recent work [A.K., D.M., N.N., Phys. Rev. D97, 053007 (2018)] on rare radiative leptonic decays and $B_{d,s}\t…
Compact Exotic Tetraquark Mesons in Large- QCD
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
We embark on systematic explorations of the behaviour of tetraquark mesons (colour-singlet bound states of two quarks and two antiquarks) in the (idealized) limit of a large number…
Global Dyson-Schwinger-Bethe-Salpeter Approach to Mesons with Open Flavour
Thomas Hilger, María Gómez-Rocha, Andreas Krassnigg +1
Exploiting an interplay of the Bethe-Salpeter equation enabling us to regard mesons as bound states of quark and antiquark and the Dyson-Schwinger equation controlling the dressed…
Simplified Bethe-Salpeter Description of Basic Pseudoscalar-Meson Features
Wolfgang Lucha
We assess a description of pseudoscalar mesons as pseudo-Goldstone bosons by its compatibility with some Gell-Mann-Oakes-Renner-type relation.
Sterile Neutrinos with Secret Interactions -- Cosmological Discord?
Xiaoyong Chu, Basudeb Dasgupta, Mona Dentler +2
Several long-standing anomalies from short-baseline neutrino oscillation experiments -- most recently corroborated by new data from MiniBooNE -- have led to the hypothesis that ext…
Revisiting nonfactorizable charm-loop effects in exclusive FCNC -decays
Anastasiia Kozachuk, Dmitri Melikhov
We revisit the calculation of nonfactorizable corrections induced by charm-quark loops in exclusive FCNC -decays. For the sake of clarity, we make use of a field theory with sca…
Core formation from self-heating dark matter
Xiaoyong Chu, Camilo Garcia-Cely
Cosmological simulations of the CDM model suggest that the dark matter halos of dwarf galaxies are denser in their center than what observational data of such galaxies imply. In…
New Physics in the Rayleigh-Jeans Tail of the CMB
Maxim Pospelov, Josef Pradler, Joshua T. Ruderman +1
We show that despite stringent constraints on the shape of the main part of the CMB spectrum, there is considerable room for its modification within its Rayleigh-Jeans (RJ) end, $ω…
Model-independent comparison of annual modulation and total rate with direct detection experiments
Felix Kahlhoefer, Florian Reindl, Karoline Schäffner +2
The relative sensitivity of different direct detection experiments depends sensitively on the astrophysical distribution and particle physics nature of dark matter, prohibiting a m…