ISSN:0094-243X    

DOI:10.1063/1.31301

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

Data on neutrino interactions involving two, three and four final state muons are summarized and the origins of such events are discussed.

ISSN:0094-243X    

DOI:10.1063/1.31297

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

A rather non‐comprehensive review of the current status of weak interaction is given. Topics discussed include (1) the atomic parity experiments and muon number nonconservation, (2) neutrino sharing, (3) the nature of parity violation, (4) the use of discrete symmetry, (5) six dominance and the &Dgr;I=1/2 rule, (6) Higgs bosons, and (7) the question of dynamical symmetry breaking.

ISSN:0094-243X    

DOI:10.1063/1.31321

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

The subject of supergravity is reviewed with emphasis on a nontechnical discussion of its achievements, prospects and difficulties. The unification of gravitation with lower spin fields is stressed, and the best present phenomenological application is discussed. Recent results are surveyed briefly.

ISSN:0094-243X    

DOI:10.1063/1.31322

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

A black hole will radiate particles quantum mechanically with a thermal spectrum. For spherical balck holes of mass M the temperature is given by kT=h&slash;c3/8&pgr;GM. A simple derivation of black hole radiance is given.

ISSN:0094-243X    

DOI:10.1063/1.31323

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

It is shown that the well‐established, standard Big Bang cosmological model places constraints on some elementary particle properties. In particular, it is shown that only a few additional 2 component zero‐mass neutrino species beyond &ngr;eand &ngr;uare possible before an excessive amount of Helium is produced in the Big Band. It is also shown that if a massive‐neutral‐stable‐lepton were to exist, it might provide the ’’missing mass’’ for clusters of galaxies and provide the material for massive halos. Because such a particle would probably not provide sufficient mass to close the universe. The final part of the paper shows what constraints astrophysics can place on the allowed masses and lifetimes of an unstable‐massive‐neutral‐lepton.

ISSN:0094-243X    

DOI:10.1063/1.31324

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

Recent results in the spectroscopy of mesons formed from light quarks are placed in a systematic experimental context.

ISSN:0094-243X    

DOI:10.1063/1.31294

出版商:AIP    

年代:1978

数据来源: AIP

摘要:

Various theoretical ideas based on nuclear physics, duality, string models, QCD, and bag models which lead to the expectation of massive mesons coupled strongly to baryon‐anti‐baryon channels but weakly to meson systems are reviewed. A survey of the exciting experimental discoveries which have re‐awakened interest in the subject is given. The data indicate that we still have a great deal to learn and discover.

ISSN:0094-243X    

DOI:10.1063/1.31295

出版商:AIP    

年代:1978

数据来源: AIP

ISSN:0094-243X    

DOI:10.1063/1.31296

出版商:AIP    

年代:1978

数据来源: AIP

ISSN:0094-243X    

DOI:10.1063/1.31298

出版商:AIP    

年代:1978

数据来源: AIP