排序方式: 共有24条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
The fermion number current is evaluated to leading order in the derivative expansion for chiral fermions in the background of arbitrary Higgs and chiral gauge fields. This current is given by the gauge topological current plus a total divergence term. The total divergence term is absent in Weinberg-Salam theory with one scalar Higgs doublet, even for an arbitrary mass matrix, but appears when several Higgs doublets are present. 相似文献
5.
A.C. Lawson A. Williams J.L. Smith P.A. Seeger J.A. Goldstone J.A. ORourke Z. Fisk 《Journal of magnetism and magnetic materials》1985,50(1):83-87
The magnetic ordering of the intermetallic compounds UGa3 and UGa2 has been examined by time-of-flight neutron diffraction, and the nature of the magnetic order of these compounds is confirmed. 相似文献
6.
P.D. Goldstone F. Hopkins R.E. Malmin P. Von Brentano P. Paul 《Physics letters. [Part B]》1976,62(3):280-282
Using the 239Pu(d, pf) reaction, the next lower Kπ = 0+ vibrational resonance below 5 MeV in the deformed potential of 240Pu was located at 4.55 MeV. The resultant spacing of fission vibrations near 5 MeV in the second minimum is 500 keV. A resonance at 4.70 MeV is interpreted as the Kπ = 0? vibration coupled to the 4.55 MeV Kπ = 0+ state, which yields E(Kπ = 0?) = 150 keV relative to the ground state of the second minimum. 相似文献
7.
8.
9.
Richard Goldstone 《Discrete Mathematics》2010,310(21):2806-2810
We define a group G to be graphically abelian if the function g?g−1 induces an automorphism of every Cayley graph of G. We give equivalent characterizations of graphically abelian groups, note features of the adjacency matrices for Cayley graphs of graphically abelian groups, and show that a non-abelian group G is graphically abelian if and only if G=E×Q, where E is an elementary abelian 2-group and Q is a quaternion group. 相似文献
10.
The functional Ito formula, in the form df() = f( + d ) f(),is formulated and proved in the context of a Lie algebra L associatedwith a quantum (non-commutative) stochastic calculus. Here fis an element of the universal enveloping algebra U of L, andf() + d() f() is given a meaning using the coproductstructure of U even though the individual terms of this expressionhave no meaning. The Ito formula is equivalent to a chaoticexpansion formula for f() which is found explicitly. 1991 MathematicsSubject Classification: primary 81S25; secondary 60H05; tertiary18B25. 相似文献