119 citations · 514 across the 17 of their papers we have counts for
17 papers
Day-night effect in solar neutrino oscillations with three flavors
Mattias Blennow, Tommy Ohlsson, Hakan Snellman
We investigate the effects of a nonzero leptonic mixing angle on the solar neutrino day-night asymmetry. Using a constant matter density profile for the Earth and well-mot…
Quantum Field Theory Treatment of Neutrino Oscillations in Vacuum and in Matter
Diego Pallin, Hakan Snellman
We study neutrino oscillations in vacuum and in matter using field theoretical methods and wave-packets. In particular, we calculate the neutrino propagator in the presence of matt…
The effects of matter density uncertainties on neutrino oscillations in the Earth
Bjorn Jacobsson, Tommy Ohlsson, Hakan Snellman +1
We compare three different methods to evaluate uncertainties in the Earth's matter density profile, which are relevant to long baseline experiments, such as neutrino factories.
Effects of random matter density fluctuations on the neutrino oscillation transition probabilities in the Earth
Bjorn Jacobsson, Tommy Ohlsson, Hakan Snellman +1
In this paper, we investigate the effects of random fluctuations of the Earth matter density for long baselines on the neutrino oscillation transition probabilities. We especially…
Neutrino oscillations with three flavors in matter of varying density
Tommy Ohlsson, Hakan Snellman
In this paper, we discuss the evolution operator and the transition probabilities expressed as functions of the vacuum mass squared differences, the vacuum mixing angles, and the m…
Neutrino oscillations with three flavors in matter: Applications to neutrinos traversing the Earth
Tommy Ohlsson, Hakan Snellman
Analytic formulas are presented for three flavor neutrino oscillations in matter in the plane wave approximation. We calculate in particular the time evolution operator in both mas…
On the Domain of Mixing Angles in Three Flavor Neutrino Oscillations
Jonny Lundell, Hakan Snellman
We clarify the domain needed for the mixing angles in three flavor neutrino oscillations. By comparing the ranges of the transition probabilities as functions of the domains of the…
Three flavor neutrino oscillations in matter
Tommy Ohlsson, Hakan Snellman
We derive analytic expressions for three flavor neutrino oscillations in the presence of matter in the plane wave approximation using the Cayley-Hamilton formalism. Especially, we…
Neutrino oscillations and mixings with three flavors
Tommy Ohlsson, Hakan Snellman
Global fits to all data of candidates for neutrino oscillations are presented in the framework of a three-flavor model. The analysis excludes mass regions where the MSW effect is i…
Is there a mass dependence in the spin structure of baryons?
Johan Linde, Hakan Snellman
We analyze the axial-vector form factors of the nucleon-hyperon system in a model with SU(3) symmetry breaking due to mass dependent quark spin polarizations. Thi…
Chiral quark model analysis of nucleon quark sea isospin asymmetry and spin polarization
Tommy Ohlsson, Hakan Snellman
We analyze recent measurements of the nucleon quark sea isospin asymmetry in terms of the chiral quark model. The new measurements indicate that the SU(3) model with modest symmetr…
Weak form factors for semileptonic octet baryon decays in the chiral quark model
Tommy Ohlsson, Hakan Snellman
We study the weak vector and axial-vector form factors of first- and second-class currents for the semileptonic octet baryon decays in the spirit of the chiral quark model. Our res…
Decuplet Baryon Magnetic Moments in the Chiral Quark Model
Johan Linde, Tommy Ohlsson, Hakan Snellman
We present calculations of the decuplet baryon magnetic moments in the chiral quark model. As input we use parameters obtained in qualitatively accurate fits to the octet baryon ma…
Octet Baryon Magnetic Moments in the Chiral Quark Model with Configuration Mixing
Johan Linde, Tommy Ohlsson, Hakan Snellman
The Coleman-Glashow sum-rule for magnetic moments is always fulfilled in the chiral quark model, independently of SU(3) symmetry breaking. This is due to the structure of the wave…
Charmonium in the instantaneous approximation
Johan Linde, Hakan Snellman
The charmonium system is studied in a Salpeter model with a vector plus scalar potential. We use a kinematical formalism based on the one developed by Suttorp, and present general…
Magnetic moments of the 3/2 resonances and their quark spin structure
Johan Linde, Håkan Snellman
We discuss magnetic moments of the baryons based on an earlier model for the baryon magnetic moments, allowing for flavor symmetry breaking in the quark magnetic moments as…
Flavor symmetry breaking in quark magnetic moments
Johan Linde, Håkan Snellman
We discuss the magnetic moments of the baryons allowing for flavor symmetry breaking in the quark magnetic moments. We show that there is a correlation between isospin symmetry bre…