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61.
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Lawrence W. Jones 《Czechoslovak Journal of Physics》2006,56(1):A201-A210
The L3 detector at the CERN electron-positron collider had a muon spectrometer which was employed during the last years of LEP operation for cosmic ray studies. The results of this program include a precise muon spectrum and charge ratio between 20 GeV and 3 TeV, a limit on TeV primary antiprotons from a study of the Moon’s shadow, the (possible) observation of a are signal from a fixed position in the northern hemisphere through muons, a solar anisotropy of 200 GeV protons, and other results. Negative limits on muons associated with known H.E. gamma sources or gamma bursts, the search for anomalous H.E. interaction or decay events such as reported from the Kolar Gold Fields, and a search for muons correlated with a solar are are also noted. 相似文献
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A 3 + 1-dimensional decomposition is made of a two-tensor theory of gravity proposed by Salam et al. It is found that the gauge invariance roles of the two tensors are very symmetric, so that the massiveness or masslessness of the fields is ambiguous. Constraint equations are derived by elimination of gauge variables. The form of the constraints casts doubt on the sign of the total energy of the theory. 相似文献
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Normality and shared values 总被引:19,自引:0,他引:19
LetF be a family of meromorphic functions on the unit disc Δ and leta andb be distinct values. If for everyf∈F,f andf′ sharea andb on Δ, thenF is normal on Δ.
The first author was supported by NNSF of China approved no. 19771038 and by the Research Institute for Mathematical Sciences,
Bar-Ilan University. 相似文献
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Let U be an open subset of the Riemann sphere \(\hat {\mathbb{C}}\). We give sufficient conditions for which a finite type map f: U → \(\hat {\mathbb{C}}\) with at most three singular values has a Siegel disk compactly contained in U and whose boundary is a quasicircle containing a unique critical point. The main tool is quasiconformal surgery à la Douady-Ghys-Herman-?wi?tek. We also give sufficient conditions for which, instead, Δ has not compact closure in U. The main tool is the Schwarzian derivative and area inequalities à la Graczyk-?wi?tek. 相似文献
70.
Sebastian T. Marcus Lawrence R. Gahan Paul V. Bernhardt 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(6):655-658
The structures of diaqua(1,7‐dioxa‐4‐thia‐10‐azacyclododecane)nickel dinitrate, [Ni(C8H17NO2S)(H2O)2](NO3)2, (I), bis(nitrato‐O,O′)(1,4,7‐trioxa‐10‐azacyclododecane)mercury, [Hg(NO3)2(C8H17NO3)], (II), and aqua(nitrato‐O)(1‐oxa‐4,7,10‐triazacyclododecane)copper nitrate, [Cu(NO3)(C8H19N3O)(H2O)]NO3, (III), reveal each macrocycle binding in a tetradentate manner. The conformations of the ligands in (I) and (III) are the same and distinct from that identified for (II). These differences are in agreement with molecular‐mechanics predictions of ligand conformation as a function of metal‐ion size. 相似文献