glueball การใช้

• The presence of an eta ( 1405 ) state also brings glueball mixing into the discussion.
• A definitive observation of a glueball with the properties predicted by QCD would strongly confirm the theory.
• This can lead to variation in theoretical predictions of glueball properties like mass and branching ratios in glueball decays.
• This can lead to variation in theoretical predictions of glueball properties like mass and branching ratios in glueball decays.
• Theorists had long known that the glueball, if it existed, would be too short-lived to be observed directly.
• In spite of such seemingly simple counting, the assignment of any given state as a glueball, tetraquark, or hybrid remains tentative even today.
• The Higgs boson is about 25 & ndash; 80 times as heavy as the mass of the various glueball states predicted by the Standard Model.
• The scalar glueball is also expected to fall in this mass region, appearing in similar fashion to the conventional mesons but having very distinctive decay characteristics.
• Consequently, the IBM group believes that fJ ( 1710 ) and the glueball are one and the same, and that the existence of glueballs has been virtually proved.
• It is possible that the eta and eta prime mesons mix with the pseudoscalar glueball which should occur, in its pure state, somewhere above the scalar glueball in mass.
• It is possible that the eta and eta prime mesons mix with the pseudoscalar glueball which should occur, in its pure state, somewhere above the scalar glueball in mass.
• In principle the computational method is fairly simple, but in calculating the kind of results that bear on the glueball problem, enormous numbers of nodes must be taken into consideration.
• But the QCD theory also predicts that under certain circumstances, gluons of different types could briefly stick to each other; two gluons thus bound to each other would constitute a hypothetical particle dubbed a " glueball ."
• He has contributed to the definition of the running and invariant quark masses in QCD and on the tests of the gluonium / glueball nature of the scalar meson ? / f 0 ( 500 ) using QSSR, ?? and ?? scatterings data.
• *X ( 3020 ) observed by the BaBar collaboration is a candidate for an excited state of the 2 & minus; +, 1 +  " or 1 "  " glueball states with a mass of about 3.02 GeV / c 2.
• Dr . Michael Creutz of Brookhaven National Laboratory in Upton, N . Y ., one of the scientists who developed the lattice computation technique, said the new IBM result was " a fairly convincing argument " that the fJ ( 1710 ) particle is a glueball.
• However, due to the aforementioned difficulty ( among others ), they have ( ) so far not been observed and identified with certainty, although phenomenological calculations have suggested that an experimentally identified glueball candidate, denoted f _ { 0 } ( 1710 ), has properties consistent with those expected of a Standard Model glueball.
• However, due to the aforementioned difficulty ( among others ), they have ( ) so far not been observed and identified with certainty, although phenomenological calculations have suggested that an experimentally identified glueball candidate, denoted f _ { 0 } ( 1710 ), has properties consistent with those expected of a Standard Model glueball.