scalar meson वाक्य
उदाहरण वाक्य
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- The heavier scalar mesons containing charm and / or bottom quarks all occur well over 2 GeV / c 2.
- The " Particle Data Group " provides current information on the experimental status of various particles, including the scalar mesons.
- Many attempts have been made to determine the quark content of the lighter scalar mesons; however, no consensus has yet been reached.
- The first known scalar mesons have been observed since the late 1950s, with observations of numerous light states and heavier states proliferating since the 1980s.
- In this realm, the radiative processes tend to stand out, with heavy tensor and scalar mesons decaying dominantly into vector mesons by photon emission.
- The scalar mesons in the mass range below 1 GeV / c 2 are much more controversial, and may be interpreted in a number of different ways.
- The tetraquark interpretation works well with the MIT Bag Model of QCD, where the scalar tetraquarks are actually predicted to have lower mass than the conventional scalar mesons.
- Ever since Jaffe first suggested the existence of tetraquark multiplets in 1977, the lightest scalar mesons have been interpreted by some theorists to be possible tetraquark or meson-meson molecule states.
- This characteristic of the vector mesons is not at all evident in the pseudoscalar meson or scalar meson multiplets, and may be only slightly realized among the tensor meson and pseudovector meson multiplets.
- With the re-introduction of the sigma meson as an acceptable candidate for a light scalar meson in 1996 by Tornqvist and Roos, in-depth studies into the lightest scalar mesons were conducted with renewed interest.
- With the re-introduction of the sigma meson as an acceptable candidate for a light scalar meson in 1996 by Tornqvist and Roos, in-depth studies into the lightest scalar mesons were conducted with renewed interest.
- In-depth studies of the unflavored scalar mesons began with the Crystal Ball and Crystal Barrel experiments of the mid 1990s, focusing on the mass range between 1 GeV / c 2 and 2 GeV / c 2.
- Since the late 1950s, the lightest scalar mesons were often interpreted within the framework of the linear sigma model, and many theorists still choose this interpretation of the scalar mesons as the chiral partners of the pseudoscalar meson multiplet.
- Since the late 1950s, the lightest scalar mesons were often interpreted within the framework of the linear sigma model, and many theorists still choose this interpretation of the scalar mesons as the chiral partners of the pseudoscalar meson multiplet.
- This picture of the scalar mesons seems to fit experimental results well in certain ways, but often receives harsh criticism for ignoring unsolved problems with chiral symmetry breaking and the possibility of a non-trivial vacuum state as suggested by Gribov.
- 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.
- The light ( unflavored ) scalar mesons may be divided into three groups; those having a mass below 1 GeV / c 2, those having a mass between 1 GeV / c 2 and 2 GeV / c 2, and other radially-excited unflavored scalar mesons above 2 GeV / c 2.
- The light ( unflavored ) scalar mesons may be divided into three groups; those having a mass below 1 GeV / c 2, those having a mass between 1 GeV / c 2 and 2 GeV / c 2, and other radially-excited unflavored scalar mesons above 2 GeV / c 2.
- Dirac had also solved the problem of putting the Tomonaga Schwinger equation into the Schr�dinger representation and given explicit expressions for the scalar meson field ( spin zero pion or pseudoscalar meson ), the vector meson field ( spin one rho meson ), and the electromagnetic field ( spin one massless boson, photon ).
- For example, " The approximate chiral symmetry of QCD, for example, allows one to define the ratio between various ( up, down and strange ) quark masses through combinations of the masses of the pseudo-scalar meson octet in the quark model through chiral perturbation theory . . . "-what?
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