92 research outputs found

    Dark-matter particles and baryons from inflation and spontaneous CP violation in the early universe

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    We present aspects of a model which attempts to unify the creation of cold dark matter, a CP-violating baryon asymmetry, and also a small, residual vacuum energy density, in the early universe. The model contains a primary scalar (inflaton) field and a primary pseudoscalar field, which are initially related by a cosmological, chiral symmetry. The nonzero vacuum expectation value of the pseudoscalar field spontaneously breaks CP invariance.Comment: 7 pages, appendix adde

    Effects of a dynamical role for exchanged quarks and nuclear gluons in nuclei: multinucleon correlations in deep-inelastic lepton scattering

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    It is shown that new data from the HERMES collaboration, as well as all of the earlier improved data from experiments concerning the EMC effect and shadowing in deep-inelastic scattering of leptons from nuclei, provide strong evidence for an explicit dynamical role played by exchanged quarks and nuclear gluons in the basic, tightly-bound systems of three and four nucleons, He3 and He4. This opens the way for specific quark-gluon dynamics instigating multinucleon correlations in nuclei.Comment: 15 pages, 2 figures. Minor changes. New forma

    A new implication for strong interactions if large, direct CP violation in Bbar^0(B^0) -> pi^+pi^- is confirmed

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    We show that the large, direct CP-violation parameter Aππ=CππA_{\pi\pi}=-C_{\pi\pi}, reported by the BELLE collaboration in the decays Bbar^0(B^0) -> \pi^+\pi^-, implies an unusual situation in which the presence of a very large difference between two strong-interaction phases ~ -110 deg. plays an essential role. We make the demonstration within a model of strong, two-body quasi-elastic interactions between physical hadrons. The model can accommodate a large difference between two strong-interaction phases, for which it provides a natural enhancement.Comment: 6 pages, no figure

    Long-range interactions between dark-matter particles in a model with a cosmological, spontaneously-broken chiral symmetry

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    In a cosmological model with a chiral symmetry, there are two, dynamically-related spin-zero fields, a scalar ϕ\phi and a pseudoscalar bb. These fields have self-interactions. Spontaneous symmetry breaking results in a very massive scalar particle with m_\phi\cong 5 \times 10^{11}\GeV, and a nearly massless, (Goldstone-like) pseudoscalar particle with 0< m_b <~ 2.7\times 10^{-6}\eV. One or both particles can be part of dark matter. There are coherent long-range interactions (at range \sim 1/m_b \simgt 10\cm), from exchange of a bb particle between a pair of bb particles, a pair of ϕ\phi particles, and between a ϕ\phi and a bb. We compare the strength of potentials for the different pairs to the corresponding gravitational potentials (within the same range 1/mb\sim 1/m_b), and show that the new force dominates between a b pair, that gravitation dominates between a ϕ\phi pair, and that the potentials are comparable for a ϕ\phi-bb pair. The new interaction strength between a bb pair is comparable to the gravitational interaction between a ϕ\phi pair; its possibly greater coherent effect originates in the possibility that the number density of a very light bb can be greater than that of a massive ϕ\phi. We consider these results in the context of recent speculations concerning possible effects of special forces between dark-matter particles on certain galactic, and inter-galactic, properties.Comment: 8 pages, 1 figure. Appendix adde

    Hidden Diary:Patriarchal domestic violence revealed in a revision of the maternal melodrama

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    Stronger Neutrino Interactions at Extremely High Energies and the Muon Anomalous Magnetic Moment

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    A specific model of parity-conserving lepton substructure is considered. We show that a positive-definite contribution to the muon (g2)/2(g-2)/2 at the possible level of about 4×1094\times 10^{-9}, can be related to a significant increase in the interaction cross section for cosmic-ray neutrinos with energies above about 101910^{19} eV. The additional cross section at 1020\sim 10^{20} eV is calculated to be 1029\sim 10^{-29} cm2^2, which is about 100 times the standard weak-interaction cross section. The model involves an extremely massive, neutral lepton, with mL2×106m_L\cong 2\times 10^6 GeV fixed by the new contribution to (g2)/2(g-2)/2.Comment: 7 pages, 3 figure

    On the possible dark-matter content of QSO's and of compact, very massive entities in the nuclei of galaxies: a metastable particle with mass of about 10^10 GeV

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    We examine some general astrophysical results which can be related to the hypothesis that very heavy, metastable particles constitute compact, very massive central entities in QSO's and the core of galaxies. The mass and lifetime have been calculated in detail previously: the mass is about 10^{10}\GeV; the lifetime is \simgt 10^{21} \sec. The specific decay gives rise to a new source of very large amounts of energy in radiation. The essence of the ideas discussed in this paper is that very massive, metastable dark matter constitutes entities near to black-hole conditions, and that it is decay which provides a large primary energy source from such entities, as components of QSO's, AGN, and possibly GRB's.Comment: 8 pages, no figure
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