{"title":"Radiative neutrino transition v×vγ in strongly magnetized plasma","authors":"M. Chistyakov, N. Mikheev","doi":"10.1080/01422410008229147","DOIUrl":"https://doi.org/10.1080/01422410008229147","url":null,"abstract":"Abstract The influence of strongly magnetized electron-positron plasma on radiative neutrino transition v×vγ is investigated. The amplitude and the probability of the process are calculated taking account of the photon dispersion and large radiative corrections near the resonance. It is shown that the combined effect of plasma and strong magnetic field decreases the probability of the process in comparison to the result in pure magnetic field.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121181537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nucleon parton distributions in the chiral theory of nucleon","authors":"V. Petrov, P. Pobylitsa","doi":"10.1080/01422419908228839","DOIUrl":"https://doi.org/10.1080/01422419908228839","url":null,"abstract":"Abstract At large Nc the nucleon can be viewed as a soliton of the effective chiral lagrangian. This picture of nucleons allows a consistent nonperturbative calculation of the leading-twist parton distributions at a low normalization point. We derive general formulae for the polarized and unpolarized distributions in the chiral quark-soliton model. The consistency of the approach is demonstrated by checking the baryon number, isospin and total momentum sum rules, as well as the Bjorken sum rule. We present results for the quark and antiquark distributions and find reasonable agreement with parametriza-tions of the data at a low normalization point. In particular, we obtain a sizeable fraction of antiquaries, in agreement with the phenomenological analysis.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122023476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Black holes, classical and quantum","authors":"I. B. Khriplovich","doi":"10.1080/01422419908228845","DOIUrl":"https://doi.org/10.1080/01422419908228845","url":null,"abstract":"The entropy and temperature of black holes are discussed. We consider also some approaches to quantization of black holes. New quantization rule is proposed based on an analysis of the Kerr solution.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133368318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cancellation of divergences in the superstring perturbation theory","authors":"G. S. Danilov","doi":"10.1080/01422419908228846","DOIUrl":"https://doi.org/10.1080/01422419908228846","url":null,"abstract":"Abstract The calculation of the multi-loop superstring amplitudes is developed using the explicit partition functions and the explicit vacuum correlators given in terms of the super-Schottky modular parameters. The multi-loop superstring amplitude is presented by the integrals over super-Schottky parameters that include the Grassmann integrations in addition to the ordinary ones. The integrals are ill defined due to the partition function becomes infinite when the supermanifold is degenerated in a few lower genus supermanifolds. For the calculation of the integrals the regularization procedure is proposed preserving the super-modular group and SL(2)-symmetry as well. In this case the divergences due to a dividing of the genus-n > 1 supermanifold in a few the lower genus supermanifolds are found to disappear since the Grassmann integrations are performed. It is similar to QED, as example, where the photon mass disappears, if a gauge invariant regularization scheme is used. The divergences due to a degenera...","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123595880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Matrix approach to multicolor induced gluodynamics","authors":"A. Shuvaev","doi":"10.1080/01422419908228842","DOIUrl":"https://doi.org/10.1080/01422419908228842","url":null,"abstract":"","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132292791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nonequilibrium neutrino spectra in the early universe","authors":"A. Dolgov, S. Hansen, D. Semikoz","doi":"10.1080/01422419808240878","DOIUrl":"https://doi.org/10.1080/01422419808240878","url":null,"abstract":"Abstract In this talk we discuss the non-equilibrium corrections to the neutrino spectrum in the early Universe. We present the results of a numerical simulation of the set of kinetic equations for the neutrino distribution functions. The final values of the distortion of the energy densities are approximately 0.9∼ for ve and 0.4∼ for vμ and v r. This effect leads to an increase in the primordial 4He abundance of 1.4.10−-4.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116674074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Searches for n → [nbar] oscillationsand proton decay","authors":"Y. Kamyshkov","doi":"10.1080/01422419808240875","DOIUrl":"https://doi.org/10.1080/01422419808240875","url":null,"abstract":"Abstract Current status of baryon instability search is reviewed in this lecture. Proton decay with the modes and rates predicted by the original SU(5) grand unification model was not observed experimentally. The possibility of alternative baryon nonconservation scenario corresponding to the left-right symmetric unification schemes and evolving at the intermediate energy scale of ∼105 GeV is considered. One of the most spectacular manifestations of the physics of such energy scale would be an observation of neutron to antineutron transitions. Future prospects of baryon instability search are discussed.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"389 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116393163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flavour physics and supersymmetric unification","authors":"R. Barbieri","doi":"10.1080/01422419808240873","DOIUrl":"https://doi.org/10.1080/01422419808240873","url":null,"abstract":"Abstract I outline a possible connection between an appropriate flavour symmetry and super-symmetry and I spell out its consequences concerning the parameters of the CKM matrix and their observability in B- and K-physics. The relevance of searching for lepton flavour violation and for the electric dipole moments of the electron and the neutron is also emphasized.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"17 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133715052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Properties of heavy light hadrons","authors":"A. Kaidalov","doi":"10.1080/01422419808240876","DOIUrl":"https://doi.org/10.1080/01422419808240876","url":null,"abstract":"Abstract Theoretical approaches to investigation of properties of hadronic systems containing one heavy quark and light degrees of freedom are reviewed. Predictions for mass spectra and strong decays of these states on Heavy Quark Symmetry are discussed in details. Applications of other dynamical approaches and models; QCD sum rules, potential models, 1/N-expression and string models are also considered and confronted to experimental data.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126787061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanisms of supernova explosion","authors":"D. Nadyozhin","doi":"10.1080/01422419808240872","DOIUrl":"https://doi.org/10.1080/01422419808240872","url":null,"abstract":"Abstract The modern status of supernova mechanisms is reviewed with special emphasis on physical processes involved. An extensive study of supernovae (both observational and theoretical) during the last decade, prompted by the outburst of close Supernova 1987A in the Large Magellanic Cloud, led to general consensus that Type Ia supernovae are the result of thermonuclear explosion of carbon-oxygen white dwarfs whereas other types supernovae (especially Type II) are triggered by the gravitational collapse of stellar iron cores. However, there is still much left to do to understand the details of the two supernova mechanisms. The main difficulties are due to the lack of a comprehensive theory of thermonuclear flame in degenerate stellar matter for Type Ia supernovae and a very complicated (essentially three-dimensional) picture of the energy transfer from a dense collapsed remnant (neutron star) to the expelled stellar envelope in the case of other type supernovae—the interaction of neutrino flux with large-...","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"230 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125984460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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