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Camacho, J. M., Miro, C., Nebot, M., & Tobarra, T. (2026). On vacua and bounded masses in the general 2HDM. Phys. Lett. B, 881, 140928–7pp.
Abstract: Two Higgs doublets models with a scalar potential that breaks electroweak symmetry spontaneously can have either one or two local minima. While potentials with one minimum can have a decoupling regime where all the new scalars are heavy, we show that, for potentials with two local minima, the masses of all the scalars are bounded if the dimensionless quartic couplings obey perturbativity constraints.
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Martin-Luna, P., Gimeno, B., Gonzalez-Iglesias, D., Boronat, M., Fuster-Martinez, N., Martinez-Reviriego, P., et al. (2024). On the magnetostatic scalar potential and magnetic field of a cylindrical magnet. Eur. J. Phys., 45(6), 065203–15pp.
Abstract: The magnetostatic potential and magnetic field of a solid and hollow cylindrical magnet is calculated everywhere in space in terms of complete elliptic integrals. These expressions are calculated using an electromagnetic analogy with the electrostatic potential and electric field of two uniformly charged disks with opposite surface density. The analogy is employed to study intuitively the discontinuities and the dipolar approximation of the fields (H) over right arrow and (B) over right arrow. The range of validity of the dipolar approximation has been studied along the cylinder axis and in the midplane perpendicular to the cylinder axis, comparing them with the obtained general expression.
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