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On isotropic invariance of CP-noninvariant electromagnetic vertices cp -非不变电磁顶点的各向同性不变性
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91015-8
L.B. Okun
{"title":"On isotropic invariance of CP-noninvariant electromagnetic vertices","authors":"L.B. Okun","doi":"10.1016/0031-9163(66)91015-8","DOIUrl":"10.1016/0031-9163(66)91015-8","url":null,"abstract":"<div><p>The isotopic selection rules are discussed in the framework of a scheme of strong <em>CP</em>-violation proposed by Lee. (According to these scheme the charge conjugation operators <em>C</em><sub>st</sub> and <em>C</em><sub>γ</sub> leaving invariant strong and electromagnetic interactions, respectively, do not coincide with each other.) It is shown that in this scheme <em>CP</em>-noninvariant vertices describing the emission of photons by ordinary hadrons must be necessarily isotopically invariant (<em>ΔI</em> = 0) independent of whether the principle of minimal electromagnetic interaction is applicable to so called a-particles and whether these particles are isottopic singlets.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 595-596"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91015-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75621185","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}
引用次数: 5
Nucleon exchange and the frequency distribution of the Treiman-Yang angle 核子交换与崔曼-杨角的频率分布
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91013-4
A.E. Bussian
{"title":"Nucleon exchange and the frequency distribution of the Treiman-Yang angle","authors":"A.E. Bussian","doi":"10.1016/0031-9163(66)91013-4","DOIUrl":"10.1016/0031-9163(66)91013-4","url":null,"abstract":"","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 591-592"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91013-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76163450","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}
引用次数: 0
Representations of finite U3 transformations 有限U3变换的表示
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91002-X
E. Chacón, M. Moshinsky
{"title":"Representations of finite U3 transformations","authors":"E. Chacón,&nbsp;M. Moshinsky","doi":"10.1016/0031-9163(66)91002-X","DOIUrl":"10.1016/0031-9163(66)91002-X","url":null,"abstract":"<div><p>The representation matrices of finite U<sub>3</sub> transformations are explicitly determined.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 567-569"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91002-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81630226","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}
引用次数: 36
Preliminary results in the search for fractionally charged particles by the magnetic levitation electrometer 用磁悬浮静电计寻找分数电荷粒子的初步结果
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91019-5
G. Gallinaro, G. Morpurgo
{"title":"Preliminary results in the search for fractionally charged particles by the magnetic levitation electrometer","authors":"G. Gallinaro,&nbsp;G. Morpurgo","doi":"10.1016/0031-9163(66)91019-5","DOIUrl":"10.1016/0031-9163(66)91019-5","url":null,"abstract":"<div><p>The operation of the magnetic levitation electrometer suggested in ref. 1 is described. Measurements on the first five graphite grains (containing altogether ∼ 10<sup>16</sup> nucleons) exclude the presence of quarks in them; a future program of search for terrestrial quarks by this instrument is outlined.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 609-613"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91019-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82180111","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}
引用次数: 17
Cloud chamber measurement of the polarization of d-D neutrons at Ed = 350 keV d-D中子在Ed = 350 keV时极化的云室测量
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91012-2
J.P.F. Mulder
{"title":"Cloud chamber measurement of the polarization of d-D neutrons at Ed = 350 keV","authors":"J.P.F. Mulder","doi":"10.1016/0031-9163(66)91012-2","DOIUrl":"10.1016/0031-9163(66)91012-2","url":null,"abstract":"<div><p>The polarization of neutrons from the reaction <sup>2</sup>H(d,n)<sup>3</sup>He, at a reaction angle of 46.5° and a deuteron energy of 350 keV, has been determined as (−13.8 ± 1.4)% (phase shifts of Austin et al.).</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 589-590"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91012-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79082307","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}
引用次数: 10
Are the residues of interaction poles in the N/D method a right measure of the forces? N/D法中相互作用极点的残数是力的正确度量吗?
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91014-6
J. Daboul
{"title":"Are the residues of interaction poles in the N/D method a right measure of the forces?","authors":"J. Daboul","doi":"10.1016/0031-9163(66)91014-6","DOIUrl":"10.1016/0031-9163(66)91014-6","url":null,"abstract":"<div><p>It is shown that the residue <em>g<sub>i</sub></em> of the interaction poles are not the right measure for the effect of the forces. A simple example is constructed to clarify this point. The products <em>g<sub>i</sub>D<sub>i</sub></em> should be used instead, where <em>D<sub>i</sub></em> are the values of the <em>D</em> function at the positions of the poles.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 592-594"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91014-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85996177","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}
引用次数: 0
Core deformation in 6Li arising from the tensor force 由张量力引起的6Li核变形
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91001-8
N. Freed, P. Goldhammer
{"title":"Core deformation in 6Li arising from the tensor force","authors":"N. Freed,&nbsp;P. Goldhammer","doi":"10.1016/0031-9163(66)91001-8","DOIUrl":"10.1016/0031-9163(66)91001-8","url":null,"abstract":"<div><p>The <em>T</em> = 0, <em>J</em> = 1, 2 and 3 positive parity levels of a six nucleon system are calculated using single-particle orbitals derived from a deformed oscillator potential. Proper eigenfunctions of J<sup>2</sup> are projected through Hill-Wheeler integrals. Simplified forces are used so that the entire deformation is due to the tensor force. It is found that, to a very good approximation, all three levels may be generated from a single intrinsic function with constant size and deformation parameters. The derived level scheme indicates that the vector effects of the tensor force, previously calculated by second-order perturbation theory, are included in this model.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 564-566"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91001-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86324403","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}
引用次数: 0
The emission of alpha particles and tritons in the thermal neutron fission of 235U 235U热中子裂变中α粒子和氚的发射
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91010-9
M. Marshall , J. Scobie
{"title":"The emission of alpha particles and tritons in the thermal neutron fission of 235U","authors":"M. Marshall ,&nbsp;J. Scobie","doi":"10.1016/0031-9163(66)91010-9","DOIUrl":"10.1016/0031-9163(66)91010-9","url":null,"abstract":"<div><p>The yield and energy spectrum of α particles and tritons emitted in the thermal neutron fission of <sup>235</sup>U have been measured, and an upper limit is set for the emission of <sup>6</sup>He nuclei.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 583-585"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91010-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91519399","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}
引用次数: 5
Study of the polarization of antiproton in pp scattering at 1.18 GeV/c 1.18 GeV/c下pp散射中反质子极化的研究
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91020-1
L. Dobrzynski, C. Ghesquière, Ng. H. Xuong , H. Tofte
{"title":"Study of the polarization of antiproton in pp scattering at 1.18 GeV/c","authors":"L. Dobrzynski,&nbsp;C. Ghesquière,&nbsp;Ng. H. Xuong ,&nbsp;H. Tofte","doi":"10.1016/0031-9163(66)91020-1","DOIUrl":"10.1016/0031-9163(66)91020-1","url":null,"abstract":"<div><p>Analysis of 2764 double scattering events of antiprotons at 1.18 GeV/<em>c</em> in the 81 cm Saclay hydrogen bubble chamber yields an asymmetry of (−2.3±3)% for the angular region 15° ⩽ θ<sub>c.m.</sub> ⩽ 60°, with an average angle <em>θ</em><sub><em>c</em>.<em>m</em>.</sub> = 28°. This would correspond to an upper limit of 20% for the polarization of the antiproton at 95% confidence limit.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 614-616"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91020-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83359843","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}
引用次数: 3
On the relation between total and partial widths in nuclear reactions 核反应中总宽度与部分宽度的关系
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91000-6
J. Humblet , A. Lejeune
{"title":"On the relation between total and partial widths in nuclear reactions","authors":"J. Humblet ,&nbsp;A. Lejeune","doi":"10.1016/0031-9163(66)91000-6","DOIUrl":"10.1016/0031-9163(66)91000-6","url":null,"abstract":"<div><p>The ratio between the total width and the sum of the partial widths as defined in the <em>S</em>-matrix theory has been computed for two resonance levels of <sup>7</sup>Be from a simultaneous fitting of the reactions <sup>6</sup>Li (p, p), <sup>3</sup>He (α, α) and <sup>6</sup>Li (p, α).</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 561-564"},"PeriodicalIF":0.0,"publicationDate":"1966-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91000-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82320631","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}
引用次数: 3
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