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Fasc. 4660 : Noms de domaine
No full textFascicule d'encyclopédie mis à jour régulièrement.JurisClasseur Communication. Fascicule n° 4660
Course Syllabus FSAD 4660-Fa09
No full textFSAD 4660, Textiles, Apparel, and Innovation, Course Syllabus by Instructor Juan Hinestroza, Fall 200
Course Syllabus FSAD 4660-Fa 2012
No full textFSAD 4660, Textiles, Apparel, and Innovation, Course Syllabus by Instructor Fran Kozen, Fall 201
Studies on X(4260) and X(4660) particles
No full textStudies on the X(4260) and X(4660) resonant states in an effective lagrangian approach are reviewed. Using a Breit-Wigner propagator to describe their propagation, we find that the X(4260) has a sizable coupling to the ???c0 channel, while other couplings are found to be negligible. Besides, it couples much stronger to s than to f0(980): |g X????2/g2X??f0(980)| ?? O(10). As an approximate result for X(4660), we obtain that the ratio of Br(X&rarr??c+ ??c- ) Br(X&rarr??(2s)??+ ??-) ??e; 20. Finally, taking X(3872) as an example, we also point out a possible way to extend the previous method to a more general one in the effective lagrangian approach. ? Copyright owned by the author(s).EI
Two and three-body structure of the Y (4660)
Get PDFWe study general features of three-meson bound states using the Y(4660) as an example. Here the Y(4660) is assumed to be either a two-body bound state of the f(0)(980), itself a bound state of K and (K) over bar, and the psi' = psi(2s), or a three-body bound state of psi', K, and (K) over bar. In particular, we investigate in detail the interplay of the various scales inherent in the problem, namely the f(0) binding energy, the Y binding energy, and the K psi' scattering length. This allows us to understand under which circumstances the substructure of the f(0)(980) can be neglected in the description of the Y(4660). (C) 2010 Published by Elsevier B.V
Strong decays of the Y(4660) as a vector tetraquark state in solid quark-hadron duality
No full textAbstract In this article, we choose the [sc]P[s¯c¯]A-[sc]A[s¯c¯]P type tetraquark current to study the hadronic coupling constants in the strong decays Y(4660)→J/ψf0(980) , ηcϕ(1020) , χc0ϕ(1020) , DsD¯s , Ds∗D¯s∗ , DsD¯s∗ , Ds∗D¯s , ψ′π+π- , J/ψϕ(1020) with the QCD sum rules based on solid quark-hadron quality. The predicted width Γ(Y(4660))=74.2-19.2+29.2MeV is in excellent agreement with the experimental data 68±11±1MeV from the Belle collaboration, which supports assigning the Y(4660) to be the [sc]P[s¯c¯]A-[sc]A[s¯c¯]P type tetraquark state with JPC=1-- . In calculations, we observe that the hadronic coupling constants |GYψ′f0|≫|GYJ/ψf0| , which is consistent with the observation of the Y(4660) in the ψ′π+π- mass spectrum, and favors the ψ′f0(980) molecule assignment. It is important to search for the process Y(4660)→J/ψϕ(1020) to diagnose the nature of the Y(4660), as the decay is greatly suppressed
Resonance Y(4660) as a vector tetraquark and its strong decay channels
Get PDFAzizi, Kazem (Dogus Author)The spectroscopic parameters and partial widths of the strong decay channels of the vector meson Y(4660) are calculated by treating it as a bound state of a diquark and antidiquark. The mass and coupling of the JPC=1 - tetraquark Y(4660) are evaluated in the context of the two-point sum rule method by taking into account the quark, gluon, and mixed condensates up to dimension 10. The widths of the Y(4660) resonance's strong S-wave decays to J/ψf0(980) and ψ(2S)f0(980) as well as to J/ψf0(500) and ψ(2S)f0(500) final states are computed. To this end, strong couplings in the relevant vertices are extracted from the QCD sum rule on the light cone supplemented by the technical methods of the soft approximation. The obtained result for the mass of the resonance mY=4677-63+71 MeV, and prediction for its total width ΓY=(64.8±10.8) MeV is in nice agreements with the experimental information
Carmina Burana (BSB Clm 4660) digitalisiert
No full textDarauf weist Florian Sepp im Gemeinschaftsblog "Geschichte Bayerns" hin: Seit kurzem steht eine der berühmtesten Handschriften der Bayerischen Staatsbibliothek online, die Carmina burana. Die eigentliche Handschrift Clm 4660 findet sch unter der URL: http://daten.digitale-sammlungen.de/bsb00085130/image_1 Die zur Handschrift gehörigen Fragmente (Clm 4660a) finden sich unter der URL:http://daten.digitale-sammlungen.de/bsb00085131/image_
Carmina Burana (BSB Clm 4660) digitalisiert
No full textDarauf weist Florian Sepp im Gemeinschaftsblog "Geschichte Bayerns" hin: Seit kurzem steht eine der berühmtesten Handschriften der Bayerischen Staatsbibliothek online, die Carmina burana. Die eigentliche Handschrift Clm 4660 findet sch unter der URL: http://daten.digitale-sammlungen.de/bsb00085130/image_1 Die zur Handschrift gehörigen Fragmente (Clm 4660a) finden sich unter der URL:http://daten.digitale-sammlungen.de/bsb00085131/image_
Searching for a hidden charm h(1) state in the X(4660) -> eta h(1) and X(4660) -> eta D*(D)over-bar* decays
No full textWe explore the possibility of experimentally detecting a predicted h(1) inverted right perpendicular I-G(J(PC)) = 0(-)(1(+-))inverted left perpendicular state of hidden charm made out from the D*(D) over bar* interaction. The method consists in measuring the decay of X(4660) into eta D*(D) over bar* and determining the binding energy with respect to the D*(D) over bar* threshold from the shape of the D*(D) over bar* invariant mass distribution. A complementary method consists in looking at the inclusive X(4660) -> eta X decay and searching for a peak in the X invariant mass distribution. We make calculations to determine the partial decay width of X(4660) -> eta h(1) from the measured X(4660) -> eta D*(D) over bar* distribution. This estimation should serve in an experiment to foresee the possibility of detecting the h(1) state on top of the background of inclusive events.This work is partly supported by the Spanish Ministerio de Economia y Competitividad and European FEDER funds under the Contract Nos. FIS2011-28853-C02-01 and FIS2011-28853-C02-02, and the Generalitat Valenciana in the program Prometeo, 2009/090. We acknowledge the support of the European CommunityResearch Infrastructure Integrating Activity Study of Strongly Interacting Matter (HadronPhysics3, Grant Agreement No. 283286) under the Seventh Framework Programme of EU. This work is also partly supported by the National Natural Science Foundation of China under Grant No. 11165005 and by a scientific research fund (201203YB017) of the Education Department of Guangxi.Peer reviewe
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