It appears that the present universe has net positive baryon number. If the lifetime of the antiproton is less than the age of the universe, it is plausible that the initial universe had zero baryon number. The antiproton instability can be tested with a small antiproton storage ring....
We discuss the unique baryon number violation by two units neutron decay mode n→p¯e+χ, with χ being the standard model (SM) neutrino ν or antineutrino ν¯ or any beyond the SM light fermion, in the framework of effective field theory. This mode is kinematically allowed but rarely...
The time evolution of the baryon density and of the spectrum of the participant nucleons is investigated. It turns out that the cascade does not generate high energy density. 展开 关键词: Theoretical or Mathematical/ nuclear reaction and scattering models nuclei with mass number 39 to 58 ...
Experiments on mesons2, leptons3,4 and baryons5,6 have compared different properties of matter–antimatter conjugates with fractional uncertainties at the parts-per-billion level or better. One specific quantity, however, has so far only been known to a fractional uncertainty at the parts-per-...
Similarly to the total excitation energy, the difference of the initial nucleus baryon number and the high production g.s. hypernuclei baryon number rises with the square root of the initial baryon numbers. In Table2the five most abundant g.s. hypernuclei and their simulated production rates ar...
In fact, the number of baryons and antibaryons is rather similar, indicating that most of these baryons are CREATED particles rather than projectile and target fragments. Antibaryon production is of interest in heavy ion collisions as enhanced antiquark production has been predicted as a ...
In fact, the number of baryons and antibaryons is rather similar, indicating that most of these baryons are CREATED particles rather than projectile and target fragments. Antibaryon production is of interest in heavy ion collisions as enhanced antiquark production has been predicted as a ...
A finite but small number of net-baryons is found to be present at mid-rapidity.doi:10.1556/APH.15.2002.3-4.7Olga BarannikovaSTAR CollaborationActa Physica Hungarica
A finite but small number of net-baryons is found to be present at mid-rapidity.Olga BarannikovaPurdue University, West Lafayette, IN 47906, USAWorkshop on nuclear dynamics
关键词: physics of elementary particles and fields proton-antiproton interactions annihilation cross sections proton-nucleon interactions comparative evaluations multiplicity baryon-baryon interactions basic interactions electromagnetic interactions DOI: 10.1080/00337578608226008 ...