Weak interaction Research Papers - Academia.edu (original) (raw)

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Recent papers in Weak interaction

We construct unified models of weak and electromagnetic interactions using just three gauge fields which correspond to the intermediate vector boson and the photon. These models may be renormalizable, and do not predict processes... more

We construct unified models of weak and electromagnetic interactions using just three gauge fields which correspond to the intermediate vector boson and the photon. These models may be renormalizable, and do not predict processes involving neutral lepton currents.

John Stewart Bell (1928-1990), a truly deep and serious thinker, was one of the leading physi-cists of the 20th century. He became famous for his discovery that quantum mechanics implies that nature is nonlocal, ie, that there are... more

John Stewart Bell (1928-1990), a truly deep and serious thinker, was one of the leading physi-cists of the 20th century. He became famous for his discovery that quantum mechanics implies that nature is nonlocal, ie, that there are physical influences between events that ...

The applications of the crystallization technique in the pharmaceutical industry as a purification and separation process for the isolation and synthesis of pure active pharmaceutical ingredients (API), co-crystals, controlled release... more

The applications of the crystallization technique in the pharmaceutical industry as a purification and separation process for the isolation and synthesis of pure active pharmaceutical ingredients (API), co-crystals, controlled release pulmonary drug delivery, and separation of chiral isomers are briefly discussed using a few case studies. The effect of process variables and solvent on the polymorphism and morphology of stavudine

Nuclear and neutron beta decays have historically played a central role in determining the V Ą A structure of weak interactions and in shaping what we now call the standard model (SM)[1, 2]. Nowadays, precision measurements of low-energy... more

Nuclear and neutron beta decays have historically played a central role in determining the V Ą A structure of weak interactions and in shaping what we now call the standard model (SM)[1, 2]. Nowadays, precision measurements of low-energy processes such as neutron decay can be used to probe the existence of non-SM interactions, such as novel scalar and tensor structures. Considerable experimental efforts using both cold and ultracold neutrons are underway worldwide, with the aim to improve the precision of various neutron decay ...

The potential of high resolution ultrasonic analysis (HRUS) in humic acid colloidal properties research has been demonstrated. Sodium salts of humic acids from soil and lignite showed similar behaviour, supporting the hypothesis that, at... more

The potential of high resolution ultrasonic analysis (HRUS) in humic acid colloidal properties research has been demonstrated. Sodium salts of humic acids from soil and lignite showed similar behaviour, supporting the hypothesis that, at both neutral and alkaline pH, they aggregate from very low concentration. The same conclusion can be reached for solutions at high ionic strength. We tried to

We have measured the angular distribution of recoiling daughter nuclei emitted from the Gamow-Teller beta\betabeta decay of spin-polarized 80^{80}80Rb. The asymmetry of this distribution vanishes to lowest order in the Standard Model (SM) in pure... more

We have measured the angular distribution of recoiling daughter nuclei emitted from the Gamow-Teller beta\betabeta decay of spin-polarized 80^{80}80Rb. The asymmetry of this distribution vanishes to lowest order in the Standard Model (SM) in pure Gamow-Teller decays, producing an observable very sensitive to new interactions. We measure the non-SM contribution to the asymmetry to be ATA_{T}AT= 0.015 pm\pmpm 0.029 (stat) pm\pmpm 0.019 (syst), consistent with the SM prediction. We constrain higher-order SM corrections using the measured momentum dependence of the asymmetry, and their remaining uncertainty dominates the systematic error. Future progress in determining the weak magnetism term theoretically or experimentally would reduce the final errors. We describe the resulting constraints on fundamental 4-Fermi tensor interactions.

The authors review the history, current status, physical mechanisms, experimental methods, and applications of nonlinear magneto-optical effects in atomic vapors. They begin by describing the pioneering work of Macaluso and Corbino over a... more

The authors review the history, current status, physical mechanisms, experimental methods, and applications of nonlinear magneto-optical effects in atomic vapors. They begin by describing the pioneering work of Macaluso and Corbino over a century ago on linear ...

The charged current one pion production induced by ν_μ from nucleons and nuclei like ^12C and ^16O nuclei has been studied. The calculations have been done for the incoherent and the coherent processes from nuclear targets assuming the Δ... more

The charged current one pion production induced by ν_μ from nucleons and nuclei like ^12C and ^16O nuclei has been studied. The calculations have been done for the incoherent and the coherent processes from nuclear targets assuming the Δ dominance model and take into account the effect of Pauli blocking, Fermi motion of the nucleon and renormalization of Δ properties in a nuclear medium. The effect of final state interactions of pions has been taken into account. The theoretical uncertainty in the total cross sections due to various parameterizations of the weak transition form factors used in literature has been studied. The numerical results for the total cross sections are compared with the recent preliminary results from the MiniBooNE collaboration on ^12C and could be useful in analyzing future data from the K2K collaboration.

Universal strong, weak, and electromagnetic interactions of leptons and hadrons are generated by gauging a non-Abelian renormalizable anomaly-free subgroup of the fundamental symmetry structure SU(4) L ×SU(4) R ×SU(4 ′ ), which unites... more

Universal strong, weak, and electromagnetic interactions of leptons and hadrons are generated by gauging a non-Abelian renormalizable anomaly-free subgroup of the fundamental symmetry structure SU(4) L ×SU(4) R ×SU(4 ′ ), which unites three quartets of "colored" baryonic ...

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