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of 896
pro vyhledávání: '"A A, Agaev"'
Masses and current couplings of the charmonium and bottomonium hybrids $ \overline{c}gc$ and $\overline{b}gb$ with spin-parities $J^{\mathrm{PC} }=0^{++},\ 0^{+-},\ 0^{-+},\ 0^{--}$ and $1^{++},\ 1^{+-},\ 1^{-+},\ 1^{--}$ are calculated using QCD two
Externí odkaz:
http://arxiv.org/abs/2403.12692
Autor:
F. A. Efremov, R. V. Agaev, S. A. Kim, G. I. Moisak, E. D. Anisimov, E. A. Khabarova, J. A. Rzaev
Publikováno v:
Эпилепсия и пароксизмальные состояния, Vol 16, Iss 2, Pp 96-103 (2024)
Background. In case of ineffective conservative antiepileptic therapy, surgical treatment aimed at removing the epileptogenic focus may be applied. Resection procedures allow to eliminate seizures in most patients, but in 20–30% cases they persist
Externí odkaz:
https://doaj.org/article/3041722c3dfd4b18b6a4505de426075b
Publikováno v:
Physics Letters B, Vol 856, Iss , Pp 138886- (2024)
The mass and width of the tensor tetraquark T=bbc‾c‾ with spin-parity JP=2+ are calculated in the context of the QCD sum rule method. The tetraquark T is modeled as a diquark-antidiquark state built of components bTCγμb and c‾γνCc‾T with
Externí odkaz:
https://doaj.org/article/ba9c7a47d3f44f22ad8c0f8f3d00e3a0
Spectroscopic parameters and widths of the fully open-flavor axial-vector and pseudoscalar tetraquarks $X_{\mathrm{AV}}$ and $X_{\mathrm{PS}}$ with content $[ud][\overline{c}\overline{s}]$ are calculated by means of the QCD sum rule methods. Masses a
Externí odkaz:
http://arxiv.org/abs/2206.05004
Publikováno v:
Physics Letters B, Vol 854, Iss , Pp 138711- (2024)
Masses and current couplings of the charmonium and bottomonium hybrids c‾gc and b‾gb with spin-parities JPC=0++,0+−,0−+,0−− and 1++,1+−,1−+,1−− are calculated using QCD two-point sum rule method. Computations are performed by taki
Externí odkaz:
https://doaj.org/article/8fd69fa1ac80418b9622bcf32a627057
Publikováno v:
Physics Letters B, Vol 851, Iss , Pp 138562- (2024)
The fully heavy axial-vector diquark-antidiquark structures bbc‾c‾ are explored by means of the QCD sum rule method. They are modeled as four-quark mesons T1 and T2 composed of bTCσμνγ5b, c‾γνCc‾T and bTCγμγ5b, c‾Cc‾T diquarks, r
Externí odkaz:
https://doaj.org/article/03f31f925cfa42d28c5bd6c59c8d6d4f
Autor:
Fakhraddin G. Agaev, Meraj E. Omarov
Publikováno v:
Измерение, мониторинг, управление, контроль, Iss 1 (2024)
Background. In the article, the problem of optimizing ground measurements of the sheet area index was formed taking into account the change in the Solz zenith angle during sunrise and approach in the opposite order. Materials and methods. A mid-integ
Externí odkaz:
https://doaj.org/article/e8be16207e3c4982938c6ad39910f117
Resonance X(7300): excited 2S tetraquark or hadronic molecule $$\chi _{c1}\chi _{c1}$$ χ c 1 χ c 1 ?
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 11, Pp 1-12 (2023)
Abstract We explore the first radial excitation $$X_{\textrm{4c}}^{*}$$ X 4c ∗ of the fully charmed diquark-antidiquark state $$X_{\textrm{4c}}=cc{\overline{c}}{\overline{c}} $$ X 4c = c c c ¯ c ¯ built of axial-vector components, and the hadroni
Externí odkaz:
https://doaj.org/article/6f11bffcfad743fcb863414bb69cab97
Axial-vector and pseudoscalar tetraquarks $$[ud][{\overline{c}}{\overline{s}}]$$ [ u d ] [ c ¯ s ¯ ]
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-14 (2023)
Abstract Spectroscopic parameters and widths of the fully open-flavor axial-vector and pseudoscalar tetraquarks $$X_{\textrm{AV}}$$ X AV and $$X_{\textrm{PS}}$$ X PS with content $$[ud][{\overline{c}}{\overline{s}}]$$ [ u d ] [ c ¯ s ¯ ] are calcul
Externí odkaz:
https://doaj.org/article/32350555369846b58f5013d15753555e
Publikováno v:
Physics Letters B, Vol 844, Iss , Pp 138089- (2023)
The masses, current couplings and widths of the fully heavy scalar tetraquarks X4Q=QQQ‾Q‾, Q=c,b are calculated by modeling them as four-quark systems composed of axial-vector diquark and antidiquark. The masses m(′) and couplings f(′) of the
Externí odkaz:
https://doaj.org/article/6fe85a78bbcc4e34936330837387859f