S = −1 dibaryon formation in the ∑−D atom
نویسندگان
چکیده
منابع مشابه
Three-body decay of the d dibaryon
Under certain circumstances, a three-body decay width can be approximated by an integral involving a product of two off-shell two-body decay widths. This “angle-average” approximation is used to calculate the πNN decay width of the d(J = 3, T = 0) dibaryon in a simple ∆ model for the most important Feynman diagrams describing pion emissions with baryon-baryon recoil and meson retardation. The d...
متن کاملPionic Decay of a Possible d′ -Dibaryon
The pionic decay of a possible d -dibaryon in the process d → N + N + π is studied in the microscopic quark shell model and with a single-quark transition operator describing the transition q → q + π. For the d with quantum numbers J = 0, T = 0, we employ a six-quark shell-model wave function with a spatial sp[51]X-configuration and with N = 1 harmonic oscillator quanta. It is shown that the pi...
متن کاملThe d′-Dibaryon in a Colored Cluster Model
The mass and wave function of a six-quark system with quantum numbers JP=0−, T=0, called d, are calculated. We use a colored diquark-tetraquark cluster model for the six-quark wave function. A constituent quark model Hamiltonian with a two-body confinement potential, and residual one-gluon, one-pion, and one-sigma exchange interactions is used. The complications due to the quark exchange intera...
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The photodissociation of DNCN following excitation of the C 2A"<--X 2A" electronic transition was studied using fast beam photofragment translational spectroscopy. Analysis of the time-of-flight distributions reveals a photodissociation channel leading to D+NCN competitive with the previously observed CD+N2 product channel. The translational energy distributions describing the D+NCN channel are...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1986
ISSN: 0375-9474
DOI: 10.1016/0375-9474(86)90251-4