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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
A test of M subshell conversion coefficients at threshold energies 临界能下M亚壳层转换系数的测试
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91009-2
S.R. Amtey , J.H. Hamilton, M.J. Zender
{"title":"A test of M subshell conversion coefficients at threshold energies","authors":"S.R. Amtey ,&nbsp;J.H. Hamilton,&nbsp;M.J. Zender","doi":"10.1016/0031-9163(66)91009-2","DOIUrl":"10.1016/0031-9163(66)91009-2","url":null,"abstract":"<div><p>The M subshell rations of the 2.23 keV E3 transition in <sup>99</sup>Tc<sup>m</sup> have been measured to test new calculations of conversion coefficients at threshold. The experimental and theoretical values agree.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 581-582"},"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)91009-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73555529","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: 4
The angular distribution of backward elastically scattered pions at 3.55 GeV/c 3.55 GeV/c时后向弹性散射介子的角分布
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91018-3
W.F. Baker, P.J. Carlson, V. Chabaud, A. Lundby, E.G. Michaelis, J. Banaigs, J. Berger, C. Bonnel, J. Duflo, L. Goldzahl, F. Ploudin
{"title":"The angular distribution of backward elastically scattered pions at 3.55 GeV/c","authors":"W.F. Baker,&nbsp;P.J. Carlson,&nbsp;V. Chabaud,&nbsp;A. Lundby,&nbsp;E.G. Michaelis,&nbsp;J. Banaigs,&nbsp;J. Berger,&nbsp;C. Bonnel,&nbsp;J. Duflo,&nbsp;L. Goldzahl,&nbsp;F. Ploudin","doi":"10.1016/0031-9163(66)91018-3","DOIUrl":"10.1016/0031-9163(66)91018-3","url":null,"abstract":"<div><p>The elastic scattering of 3.55 GeV/<em>c</em> π<sup>+</sup> and π<sup>−</sup> mesons by protons was measured at centre-of-mass angles between 165° and 177°. The angular distributions for 864 events show a steeply rising backward peak for π<sup>+</sup>p, while the shape is less clear for π<sup>−</sup>p.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 605-609"},"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)91018-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84105737","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
η Production near threshold 接近阈值的产量
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91016-X
W.G. Jones, D.M. Binnie, A. Duane, J.P. Horsey, D.C. Mason, J.A. Newth ∗, I.U. Rahman, J. Walters, N. Horwitz , P. Palit
{"title":"η Production near threshold","authors":"W.G. Jones,&nbsp;D.M. Binnie,&nbsp;A. Duane,&nbsp;J.P. Horsey,&nbsp;D.C. Mason,&nbsp;J.A. Newth ∗,&nbsp;I.U. Rahman,&nbsp;J. Walters,&nbsp;N. Horwitz ,&nbsp;P. Palit","doi":"10.1016/0031-9163(66)91016-X","DOIUrl":"10.1016/0031-9163(66)91016-X","url":null,"abstract":"<div><p>A study of π<sup>−</sup> + p →η + n near threshold shows that the cross section rises linearly with η momentum and that <em>Λ</em><sub><em>η</em></sub> &lt; 0.9 MeV<em>c</em><sup>2</sup> (95% confidence limit).</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 597-600"},"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)91016-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86144216","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: 15
Energy levels of the four nucleon system 四核子系统的能级
Physics Letters Pub Date : 1966-12-05 DOI: 10.1016/0031-9163(66)91006-7
P. Kramer , M. Moshinsky
{"title":"Energy levels of the four nucleon system","authors":"P. Kramer ,&nbsp;M. Moshinsky","doi":"10.1016/0031-9163(66)91006-7","DOIUrl":"10.1016/0031-9163(66)91006-7","url":null,"abstract":"<div><p>The levels of the four nucleon system are calculated taking harmonic oscillator states with up to two quanta. The center of mass motion is explicitly eliminated and the effects of kinetic energy, Serber force and two particle spin orbit coupling are discussed.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 10","pages":"Pages 574-576"},"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)91006-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84956218","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: 27
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