3.9k citations
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
22 papers · 2 filters
Charming quasi-exotic open-flavor mesons
Thomas Hilger, Andreas Krassnigg
We discuss charmed mesons in the covariant Dyson-Schwinger-Bethe-Salpeter-equation approach. In particular we computed masses, leptonic decay constants, and an orbital-angular-mome…
On the description of exotic hadron states within QCD sum rules
Wolfgang Lucha, Dmitri Melikhov
Revisiting the QCD sum-rule description of exotic hadron states, we argue that, in order to arrive at trustable analyses of, for instance, strong decay widths of multiquarks, it is…
Rare radiative leptonic B-decays
Anastasiia Kozachuk, Dmitri Melikhov, Nikolai Nikitin
We obtain predictions for and decays. All the contributions containing long-distance QCD effects are calculated in the framework of relati…
Heavy-Meson Decay Constants: Isospin Breaking from QCD Sum Rules
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
Compared with lattice QCD, isospin breaking of heavy-meson decay constants from QCD sum rules agrees for mesons but disagrees (by a factor of four) for mesons.
Monojet searches for momentum-dependent dark matter interactions
Daniele Barducci, Aoife Bharucha, Nishita Desai +6
We consider minimal dark matter scenarios featuring momentum-dependent couplings of the dark sector to the Standard Model. We derive constraints from existing LHC searches in the m…
Strong Couplings of Three Mesons with Charm(ing) Involvement
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian +1
We determine the strong couplings of three mesons that involve, at least, one or meson, within the framework of a constituent-quark model by means of relativistic dispe…
Heavy-Meson Decay Constants: QCD Sum-Rule Glance at Isospin Breaking
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
QCD sum rules for decay constants of heavy mesons with or quark yield for mesons much less isospin breaking than lattice QCD but good agreement for mesons.
Goldstone-Type Pseudoscalar Mesons: Instantaneous Bethe-Salpeter Models
Wolfgang Lucha
A nontrivial instantaneous variant of the Bethe-Salpeter formalism allows us to discuss massless pseudoscalar mesons from a configuration-space-potential point of view.
Isospin breaking in the decay constants of heavy mesons from QCD sum rules
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
We present a study of the strong isospin-breaking (IB) effect, due in QCD to the difference between - and -quark masses, in the leptonic decay constants of charmed and beauty…
On properties of the exotic hadrons from QCD sum rules
Wolfgang Lucha, Dmitri Melikhov
We discuss the specific features of extracting properties of the exotic polyquark hadrons (tetraquarks, pentaquarks) compared to the usual hadrons by the QCD sum-rule approach. In…
Charmed Mesons and Charmonia: Three-Meson Strong Couplings
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian +1
Revisiting the strong couplings of three mesons, each of which involves at least one charm quark, proves clear disaccord between quark-model and QCD sum-rule results.
Janus-Facedness of the Pion: Analytic Instantaneous Bethe-Salpeter Models
Wolfgang Lucha
Inversion enables the construction of interaction potentials underlying - under fortunate circumstances even analytic - instantaneous Bethe-Salpeter descriptions of all lightest ps…
Probing sub-GeV Dark Matter with conventional detectors
Chris Kouvaris, Josef Pradler
The direct detection of Dark Matter particles with mass below the GeV-scale is hampered by soft nuclear recoil energies and finite detector thresholds. For a given maximum relative…
Instantaneous Bethe-Salpeter View of Goldstone-Type Pseudoscalar Mesons
Wolfgang Lucha, Franz F. Schöberl
Describing the lightest pseudoscalar mesons as bound states of quark and antiquark within the framework of an instantaneous Bethe-Salpeter formalism constructed such as to retain (…
Cornering diphoton resonance models at the LHC
Mihailo Backović, Suchita Kulkarni, Alberto Mariotti +2
We explore the ability of the high luminosity LHC to test models which can explain the 750 GeV diphoton excess. We focus on a wide class of models where a 750 GeV singlet scalar co…
Sharing but not Caring: Dark Matter and the Baryon Asymmetry of the Universe
Nicolás Bernal, Chee Sheng Fong, Nayara Fonseca
We consider scenarios where Dark Matter (DM) particles carry baryon and/or lepton numbers, which can be defined if there exist operators connecting the dark to the visible sector.…
Threshold enhancement of diphoton resonances
Aoife Bharucha, Abdelhak Djouadi, Andreas Goudelis
The data collected by the LHC collaborations at an energy of 13 TeV indicates the presence of an excess in the diphoton spectrum that would correspond to a resonance of a 750 GeV m…
The decays and in the light of the MSSM with quark flavour violation
H. Eberl, E. Ginina, A. Bartl +2
We calculate the decay width of h0 -> b bbar in the Minimal Supersymmetric Standard Model (MSSM) with quark flavour violation (QFV) at full one-loop level. We study the effect of s…
Instantaneous Bethe-Salpeter Kernel for the Lightest Pseudoscalar Mesons
Wolfgang Lucha, Franz F. Schöberl
Starting from a phenomenologically successful, numerical solution of the Dyson-Schwinger equation that governs the quark propagator, we reconstruct in detail the interaction kernel…
Leptoquark patterns unifying neutrino masses, flavor anomalies, and the diphoton excess
F. F. Deppisch, S. Kulkarni, H. Päs +1
Vector leptoquarks provide an elegant solution to a series of anomalies and at the same time generate naturally light neutrino masses through their mixing with the standard model H…
Characterising the 750 GeV diphoton excess
Jérémy Bernon, Andreas Goudelis, Sabine Kraml +2
We study kinematic distributions that may help characterise the recently observed excess in diphoton events at 750 GeV at the LHC Run 2. Several scenarios are considered, including…
Analytic Bethe-Salpeter Description of the Lightest Pseudoscalar Mesons
Wolfgang Lucha, Franz F. Schöberl
Within the Bethe-Salpeter formalism for instantaneous interactions, we describe, along a totally analytic route, the lightest pseudoscalar mesons by quark-antiquark bound states wh…