Cluster Reducibility of Multiquark Operators and Tetraquark-Adequate QCD Sum Rules

Autor: Lucha, Wolfgang, Melikhov, Dmitri, Sazdjian, Hagop

Publikováno v: 19th International Conference on Hadron Spectroscopy and Structure
19th International Conference on Hadron Spectroscopy and Structure, Jul 2021, Mexico City, Mexico

If connecting properties of a multiquark hadron with those exhibited by its constituents, QCD sum rules inferred along the routes of traditional wisdom necessarily involve contributions not related at all to and thus not presenting information about

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52f67d779b5e6a37f7fde31ad0653883

Tetraquark-adequate QCD sum rules for quark-exchange processes

Autor: Hagop Sazdjian, Wolfgang Lucha, Dmitri Melikhov

Publikováno v: Physical Review
Physical Review D
Physical Review D, American Physical Society, 2019, 100 (7), pp.074029. ⟨10.1103/PhysRevD.100.074029⟩
Phys.Rev.D
Phys.Rev.D, 2019, 100 (7), pp.074029. ⟨10.1103/PhysRevD.100.074029⟩

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 point out the differences they exhibit with respect to the cases involvin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aec8b583665f4151af38e10a8e14abf1
http://repo.scoap3.org/api

Tetraquark-Adequate QCD Sum Rules

Autor: Dmitri Melikhov, Hagop Sazdjian, Wolfgang Lucha

Publikováno v: PoS
2019 European Physical Society Conference on High Energy Physics
2019 European Physical Society Conference on High Energy Physics, Jul 2019, Ghent, Belgium. pp.536, ⟨10.22323/1.364.0536⟩
2019 European Physical Society Conference on High Energy Physics, Jul 2019, Ghent, Belgium

With the experimental observation of several credible candidates for multiquark hadrons, the latter states re-entered the focus of interest of theoretical strong-interaction physics. Proper treatment of hadronic bound states by quantum chromodynamics

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01cdceee5d6a74df76f934cd0f6267a3
http://arxiv.org/abs/1908.08803

$\alpha_s(\mu)$ from $M_{\chi_{0c(0b)}}-M_{\eta_{c(b)}}$@N2LO

Autor: Narison, Stephan

Publikováno v: 21st High-Energy Physics International Conference in Quantum Chromodynamics
21st High-Energy Physics International Conference in Quantum Chromodynamics, Jul 2018, Montpellier, France

International audience; This note complements and clarifies the results obtained in the original paper {\it QCD Parameters Correlations from Heavy Quarkonia} [1] where, here, we present a more detailed discussion of the \alpha_s-results obtained @ N2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1398::5fc34efc4fd27eedfc3cc700dddd9d2a
https://hal.archives-ouvertes.fr/hal-01975375

$\alpha_s(\mu)$ from $M_{\chi_{0c(0b)}}-M_{\eta_{c(b)}}$@N2LO

Autor: Narison, Stephan

Publikováno v: 21st High-Energy Physics International Conference in Quantum Chromodynamics
21st High-Energy Physics International Conference in Quantum Chromodynamics, Jul 2018, Montpellier, France

International audience; This note complements and clarifies the results obtained in the original paper {\it QCD Parameters Correlations from Heavy Quarkonia} [1] where, here, we present a more detailed discussion of the \alpha_s-results obtained @ N2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4325::5fc34efc4fd27eedfc3cc700dddd9d2a
https://hal.archives-ouvertes.fr/hal-01975375