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meson Definition

meson (mesän′, mez-; māsän′, -zän′; mē-)

noun

Particle Physics any of a group of subatomic particles that are both hadrons and bosons, including the pion and kaon

Etymology: < mes(otr)on

Related Forms:

  • mesonic me·sonic (me sänik, -zän-; mē-) adjective
meson Usage Examples

Converse of object

  • call: These groupings, called mesons and baryons, Let's look at what happened.
  • charm: The program also treats some decays of charmed mesons and baryons.

Adjective modifier

  • exclusive: Figure 5: H1 measurements of the W dependence of electroproduction and photoproduction cross sections of exclusive vector mesons.
  • hybrid: Specifically, I am interested in: The calculation of the spectroscopy of exotic hybrid mesons.
  • low: One contribution to the DIS g * p total cross section is the electroproduction of low mass vector mesons.
  • exotic: Specifically, I am interested in: The calculation of the spectroscopy of exotic hybrid mesons.
  • virtual: At lower energies the color singlet exchange of virtual mesons, called reggeons, contribute to the fall of the cross-section with increasing energy.
  • mass: One contribution to the DIS g * p total cross section is the electroproduction of low mass vector mesons.

Modifies a noun

  • decay: The main focus of the group is now on the search for CP violation in B meson decays.
  • photoproduction: Integrating over the measured t dependence, the W dependence of the results on exclusive vector meson photoproduction cross-sections are shown in Fig.
  • resonance: Solution method: The decay of baryon and meson resonances is simulated by a two and three body phase space Monte-Carlo model.
  • field: The corresponding eigenfunctions serve to set up the equations of motion for the meson fields.
  • mass: As the photon virtuality or the vector meson mass increase a new dependence on W 2 emerges.
  • cross-section: Such a dependence describes the general increase of the, and vector meson cross-sections with increasing W.

Noun used with modifier

  • vector: At small t there are problems triggering and, to a lesser extent, reconstructing the decay products of the vector meson.
  • anti-b: The energy levels are set so that the annihilation usually produces neutral B and anti-B mesons.
  • B: At CDF there is a unique opportunity to observe this mixing in Bs mesons.
  • phi: Daphne will be dedicated to the production of phi mesons for the purpose of studying the CP-violation phenomenon.
  • heavy-light: Abstract Last year we proposed using staggered fermions as the light quarks, combined with nonrelativistic heavy quarks, in simulations of heavy-light mesons.
  • psi: One of the products of these collisions ( whether or not a plasma is formed ) is psi mesons.