Deuteron break-up by the (p,2p) process was studied at Orsay in a kinematically complete experiment over a wide range of neutron recoil momenta extending from zero (quasi-free scattering) to those for which off-energy shell effects and final state interactions are important. Successful NNpotentials must have several basic characteristics in 28: No. In addition to the binding energy one can measure electromagnetic quantities, such as the magnetic moment and a quadrupole moment of. So and D. Strottman, J. © 2008-2020 ResearchGate GmbH. in the hidden colour form inside a composite 6-quark system as in eqn. The separable N-N interaction in fitted to the low-energy N-N scattering data. However, the spin-1/2 pro-ton and neutron do not contribute directly to the tensor structure, which is an interesting aspect in studying the Deuteron is a bound state of a neutron and a proton with a binding energy B = 2.2 MeV. The binding energy of the deuteron (analogous to the … A γ -ray of energy E is aimed at a deuteron nucleus to try to break it into a (neutron + proton) such that the n and p move in the direction of the incident γ-ray. : Originating Research Org. This picture finds justfication with respect to the surprising 1949 succcessful calculation by Steinberger for the decay π 0 → γγ. Thus, then, colour-singlet proton and neutron states in the wav, Hence we arrive at the amazing conclusion, that Wigner’s w, deuteron as a quantum mechanical bound state of a pair of distinguishable, proton and neutron, with no exchange terms atall, gives a v. tion of the nucleus - and that too in terms of just two parameter potentials. However as of now, there is no theory wherein QCD directly provides a confined nucleus. This model of Wigner treats baryons to be in the orbital angular mo-, netic moment and quandrupole moment of deuteron, one is forced to add a. state in the colour singlet state as in eqn. Hidden colour components of the 9- and 12- quark systems are group theoretically determined to be 97.6% and 99.8% respectively. molecules all basically arise due to the same underlying, A new "Hidden Colour Hypothesis" within the framework of QCD, as an extension of and in keeping with the spirit of the "Colour Singlet Hypothesis" is hereby proposed As such it should play a role in a consistent description of exotic hadrons, like the diquonia, pentaquarks, dibaryon$ etc. The deuteron has a total angular momentum quantum number J - … The invariant mass of the pp or pn system, X, was determined for interactions of antiprotons at rest and in flight below 500 MeV/c by measuring the time of flight and angle of the recoiling nucleon. concept of ”hidden colour” in QCD plays a defining role in our model. However it is shown here that the hole in the centre of $ is about twice as large as that in a typical nucleus. The minimal expectation based on multiquark systems would be that, where ’1’ represents a 3-quark cluster which is singlet in colour space and. The next simplest nucleus, called the deuteron, is a bound state of a proton and a neutron. Search for narrow bound states near threshold in nucleon-antinucleon interactions, Nuclear and atomic states of the nucleon-nucleon-antinucleon system. How this is possible is the focus of this paper. arise from the confinement ideas of QCD for the multi-quark systems. We begin a study of this question in the N-N-N system via the Faddeev equations with pair-wise interactions limited to s-wave separable forms. Also the simplest nucleus, the deuteron, has only one bound state and so is rather limited as a test ground for theories. Results are compared to those from an impulse approximation to the nuclear interaction which excludes three-body dynamical effects. Deuteron is a bound state of a neutron and a proton with a binding energy `B=2.2MeV. emphasized. [11] J. L. Forest, V. R. Pandharipande, S. C. Pieper, R. B. Wiringa. A missing-mass experiment, pd ..-->.. XN, was performed at the Brookhaven alternating-gradient synchrotron. Possible radiative transitions, pd ..-->.. NX..gamma.. and pd ..-->.. NX..pi.. were also investigated using a large Nal crystal and a pion range telescope. term however, comes to its rescue and provides additional contribution which lead to the the correct charges for baryons as per the standard Gell-Mann-Nishijima expression. Lett. Comment: Latex file, 8 pages, no figures. Join ResearchGate to find the people and research you need to help your work. one uses complex multi-parameter phenomenological interactions labelled as. The concept of "hidden colour" in QCD plays a defining role in our model. As per Quantum Chromodynamics, the physically observed baryons, con-. The deuteron is the lightest, nontrivial nucleus (where I am viewing the proton as the lightest nucleus). consider/include the colour states on the right-hand side in eqn. A nucleus can be described well in an SU (2) I model (where (p-n) are indistinguishable) and in another independent picture where the pair (p-n) is treated as made up of distinguishable proton and netron fermions. succeeds in providing a complete description of deuteron as a 6-quark colour.