首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   8篇
  免费   0篇
化学   1篇
物理学   7篇
  1995年   1篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1982年   1篇
  1975年   1篇
  1974年   1篇
  1926年   1篇
排序方式: 共有8条查询结果,搜索用时 62 毫秒
1
1.
2.
3.
A study of schannel and t-channel helicity conservation has been carried out on a prism plot separated sample of 3.9 GeV/cπ±p → π (Nπ)dd diffraction dissociation events. s-channel helicity conservation is found to be strongly violated while t-channel helicity conservation is found to be mildly violated. These results are similar to that found at 11.7 GeV/c. We explain these violations on the basis of a “two-component model” of which the first component is a single exchange amplitude. We postulate that this amplitude is the generalization of the pomeron exchange amplitude which may conserve s-channel helicity. The second component of the model is a double exchange mechanism which strongly violates s-channel helicity. The predictions of this model agree with the experimental data.  相似文献   
4.
5.
6.
7.
Brick  D.  Rudnicka  H.  Shapiro  A. M.  Widgoff  M.  Alyea  E. D.  Hafen  E. S.  Hulsizer  R. I.  Kistiakowsky  V.  Levy  A.  Lutz  P.  Oh  S. H.  Pless  I. A.  Silverman  J. P.  Stoughton  T. B.  Trepagnier  P. C.  Yamamoto  R. K.  Cohn  H. O.  Kalelkar  M.  Plano  R. J.  Stamer  P. E.  Watts  T. L.  Brucker  E. B.  Koller  E. L.  Bugg  W. M.  Ludlam  T.  Taft  H. D. 《Zeitschrift fur Physik C Particles and Fields》1982,11(4):335-341
Zeitschrift für Physik C Particles and Fields - Distributions with respect toz andz R for the fastest and second fastest particles produced in both beam and target hemispheres from 147 GeV/c...  相似文献   
8.
We have done an inclusive study of ?0 production in π?p interactions at 15 GeV/c. Evidence for two different production mechanisms, in addition to the known quasi two-body processes, is presented: production of ?0's in the central region of rapidity similar to the “pionization” region seen in the inclusive studies of pions; and forward production in the beam dissociation region of rapidity. Cross sections and rapidity distributions for the ?0 are given inclusively and by topology, and the results are compared with similar studies at other energies and with other incident particles. Results are also presented for the semi-inclusive reaction π?p → p?0 + X? and the exclusive final state pπ??0.  相似文献   
1
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号