Výsledky vyhledávání - "QUANTUM CHROMODYNAMICS: SUM RULE"

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Determination of the mass of the 1 – – vector glueball from quantum chromodynamics sum rule

Autor: Liu Dunhuan, Liu Jueping

Publikováno v: Chinese Physics Letters. 7:252-255

We analyse the influence of continuum corrections over the quantum chromodynamics sum rule for the 1– – three-gluon conserved current. The mass of the 1– – vector glueball is determined to be 2.4 GeV. It should be noted that this mass value d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::135d37887b8ed4f24b2d86a111d2632e
https://doi.org/10.1088/0256-307x/7/6/004

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Periodical

Determination of the mass of the 1--vector glueball from quantum chromodynamics sum rule

Publikováno v: Chinese Physics Letters; June 1990, Vol. 7 Issue: 6 p252-255, 4p

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Periodical

The vector glueball and its Quantum Chromodynamics sum rule

Publikováno v: Chinese Physics Letters; February 1988, Vol. 5 Issue: 2 p69-72, 4p

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The vector glueball and its Quantum Chromodynamics sum rule

Autor: Liu Jueping, Rao Jian-Guo

Publikováno v: Chinese Physics Letters. 5:69-72

A gauge invariant and Lorentz-irreducible three-gluon conserved vector current is constructed, and the mass of the vector glueball is calculated in the framework of the Quantum Chromodynamics sum rules.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b405285cecc924ec59b13f6795969c91
https://doi.org/10.1088/0256-307x/5/2/006

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Slope of the topological charge, proton spin and $0^{-+}$ pseudoscalar di-gluonia spectra

Autor: Narison Stephan

We discuss the topics mentioned in the title by scrutinizing and improving the $0^{-+}$ di-gluonia sum rules within the standard SVZ-expansion at N2LO without instantons. First, we reconsider the estimate of the slope of the topological charge $\chi'

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9055945f1851fa02453fe46dac6ce1c
https://hal.archives-ouvertes.fr/hal-03435151

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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

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$\overline m_c$ and $\overline m_b$ from $M_{Bc}$ and improved estimates of $f_{Bc}$ and $f_{Bc(2S)}$

Autor: Narison, Stephan

Publikováno v: Phys.Lett.B
Phys.Lett.B, 2020, 802, pp.135221. ⟨10.1016/j.physletb.2020.135221⟩
Physics Letters B
Physics Letters B, Elsevier, 2020, 802, pp.135221. ⟨10.1016/j.physletb.2020.135221⟩

International audience; We extract ( for the first time ) the correlated values of the running masses m‾c and m‾b from MBc using QCD Laplace sum rules (LSR) within stability criteria where perturbative (PT) expressions at N2LO and non-perturbativ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7552c3a42f96020bc2517f1f43a291fd
https://hal.archives-ouvertes.fr/hal-02166575

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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

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