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Mass formula
About: Mass formula is a research topic. Over the lifetime, 1248 publications have been published within this topic receiving 22043 citations.
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TL;DR: In this article, the bound states of Dp-branes and D(p + 2)-branes with magnetic fields were studied and it was shown that the quartic potential of the tachyonic state from the open string stretched between the p-brane and (p+2)-brane gives a vacuum energy which agrees with the prediction of the BPS mass formula.
150 citations
TL;DR: In a wide class of unified models there is an additional term in the neutrino mass formula that under the simplest assumption takes the form M(nu)=(M(N)+M(T)(N))u/M(G), where M(N) is the neutRino Dirac mass matrix, and u=O(M(W)).
Abstract: In a wide class of unified models there is an additional (and possibly dominant) term in the neutrino mass formula that under the simplest assumption takes the form M(nu)=(M(N)+M(T)(N))u/M(G), where M(N) is the neutrino Dirac mass matrix, and u=O(M(W)). This makes possible highly predictive models. A generalization of this form yields realistic neutrino masses and mixings more readily than the usual seesaw formula in some models. The conditions for resonant enhancement of leptogenesis can occur naturally in such models.
146 citations
TL;DR: In this paper, a new mass formula, HFB-1, based on the Hartree-Fock-Bogoliubov method was proposed, which used a 10-parameter Skyrme force along with a 4-dimensional function pairing force and a 2-dimensional Wigner term.
146 citations
TL;DR: In this paper, a new mass formula was constructed which contains volume and surface energies, each with a symmetry energy contribution, Coulomb and Coulomb exchange energies, and shell correction and pairing energies.
Abstract: A new mass formula has been constructed which contains volume and surface energies, each with a symmetry energy contribution, Coulomb and Coulomb exchange energies, and shell correction and pairing energies. A nuclear model with a trapezoidal radial-density distribution was used. The central density was assumed constant, and the dimensions were adjusted to fit the Stanford electron-scattering results. The symmetry energy coefficients were determined by a least-squares fit to the valley of beta stability. The volume and surface energy coefficients were determined by a least-squares fit to 89 odd–odd masses uniformly spaced in mass number. The shell correction and pairing energies were assumed to be independent functions of the proton and neutron numbers; they were empirically determined from the differences between masses computed from the formula without corrections and those tabulated by Wapstra and Huizenga. The median energy difference between the corrected formula and the Wapstra–Huizenga masses is ab...
142 citations