75 citations · 79 across the 2 of their papers we have counts for
5 papers
Spin Structure of heavy-quark hybrids
Jaume Tarrús Castellà
Exotic quarkonia are candidates to new types of hadrons including four quarks or gluonic degrees of freedom as constituents, the latter being a unique feature of QCD. We review rec…
Heavy hybrids and tetraquarks in effective field theory
Jaume Tarrús Castellà
We report on an effective field theory (EFT) description of exotic quarkonia as bound states on the spectrum of hybrid and tetraquark static energies. We provide expressions for hy…
Spin structure of heavy-quark hybrids
Nora Brambilla, Wai Kin Lai, Jorge Segovia +2
A unique feature of quantum chromodynamics (QCD), the theory of strong interactions, is the possibility for gluonic degrees of freedom to participate in the construction of physica…
Effective field theory for the nucleon-quarkonium interaction
Jaume Tarrús Castellà, Gastão Krein
We develop an effective field theory approach for the -wave quarkonium-nucleon system. We adopt a natural power counting equivalent to Weinberg's power counting in nucleon-nucle…
The Born-Oppenheimer approximation in an effective field theory language
Nora Brambilla, Gastão Krein, Jaume Tarrús Castellà +1
The Born--Oppenheimer approximation is the standard tool for the study of molecular systems. It is founded on the observation that the energy scale of the electron dynamics in a mo…