当前位置：
X-MOL 学术
›
Phys. Lett. B
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Beam–Target Helicity Asymmetry E in K+Σ− Photoproduction on the Neutron
Physics Letters B ( IF 4.4 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.physletb.2020.135662 N. Zachariou , D.P. Watts , J. Fleming , A.V. Sarantsev , V.A. Nikonov , A. D'Angelo , M. Bashkanov , C. Hanretty , T. Kageya , F.J. Klein , M. Lowry , H. Lu , A. Sandorfi , X. Wei , I. Zonta , K.P. Adhikari , S. Adhikari , M.J. Amaryan , G. Angelini , G. Asryan , H. Atac , L. Barion , C. Bass , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , A.S. Biselli , F. Bossù , S. Boiarinov , W.J. Briscoe , W.K. Brooks , D. Bulumulla , V. Burkert , D.S. Carman , J.C. Carvajal , A. Celentano , G. Charles , P. Chatagnon , T. Chetry , G. Ciullo , P.L. Cole , M. Contalbrigo , N. Dashyan , R. De Vita , A. Deur , S. Diehl , C. Djalali , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , P. Eugenio , S. Fegan , R. Fersch , A. Filippi , G. Gavalian , N. Gevorgyan , Y. Ghandilyan , G.P. Gilfoyle , F.X. Girod , W. Gohn , E. Golovatch , R.W. Gothe , K.A. Griffioen , M. Guidal , K. Hafidi , H. Hakobyan , M. Hattawy , D. Heddle , K. Hicks , D. Ho , M. Holtrop , Y. Ilieva , D.G. Ireland , B.S. Ishkhanov , E.L. Isupov , D. Jenkins , H.S. Jo , K. Joo , S.J. Joosten , D. Keller , M. Khachatryan , A. Khanal , M. Khandaker , C.W. Kim , W. Kim , V. Kubarovsky , L. Lanza , M. Leali , P. Lenisa , K. Livingston , I.J.D. MacGregor , D. Marchand , N. Markov , L. Marsicano , V. Mascagna , M. Mayer , B. McKinnon , Z.E. Meziani , T. Mineeva , V. Mokeev , E. Munevar , C. Munoz Camacho , P. Nadel Turonski , T.R. O'Connell , M. Osipenko , A.I. Ostrovidov , M. Paolone , L.L. Pappalardo , K. Park , E. Pasyuk , P. Peng , W. Phelps , O. Pogorelko , J. Poudel , J.W. Price , Y. Prok , A.J.R. Puckett , B.A. Raue , M. Ripani , A. Rizzo , G. Rosner , C. Salgado , A. Schmidt , R.A. Schumacher , U. Shrestha , D. Sokhan , O. Soto , N. Sparveris , I.I. Strakovsky , S. Strauch , J.A. Tan , N. Tyler , M. Ungaro , L. Venturelli , H. Voskanyan , E. Voutier , N.K. Walford , C.S. Whisnant , M.H. Wood , J. Zhang , Z.W. Zhao
Physics Letters B ( IF 4.4 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.physletb.2020.135662 N. Zachariou , D.P. Watts , J. Fleming , A.V. Sarantsev , V.A. Nikonov , A. D'Angelo , M. Bashkanov , C. Hanretty , T. Kageya , F.J. Klein , M. Lowry , H. Lu , A. Sandorfi , X. Wei , I. Zonta , K.P. Adhikari , S. Adhikari , M.J. Amaryan , G. Angelini , G. Asryan , H. Atac , L. Barion , C. Bass , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , A.S. Biselli , F. Bossù , S. Boiarinov , W.J. Briscoe , W.K. Brooks , D. Bulumulla , V. Burkert , D.S. Carman , J.C. Carvajal , A. Celentano , G. Charles , P. Chatagnon , T. Chetry , G. Ciullo , P.L. Cole , M. Contalbrigo , N. Dashyan , R. De Vita , A. Deur , S. Diehl , C. Djalali , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , P. Eugenio , S. Fegan , R. Fersch , A. Filippi , G. Gavalian , N. Gevorgyan , Y. Ghandilyan , G.P. Gilfoyle , F.X. Girod , W. Gohn , E. Golovatch , R.W. Gothe , K.A. Griffioen , M. Guidal , K. Hafidi , H. Hakobyan , M. Hattawy , D. Heddle , K. Hicks , D. Ho , M. Holtrop , Y. Ilieva , D.G. Ireland , B.S. Ishkhanov , E.L. Isupov , D. Jenkins , H.S. Jo , K. Joo , S.J. Joosten , D. Keller , M. Khachatryan , A. Khanal , M. Khandaker , C.W. Kim , W. Kim , V. Kubarovsky , L. Lanza , M. Leali , P. Lenisa , K. Livingston , I.J.D. MacGregor , D. Marchand , N. Markov , L. Marsicano , V. Mascagna , M. Mayer , B. McKinnon , Z.E. Meziani , T. Mineeva , V. Mokeev , E. Munevar , C. Munoz Camacho , P. Nadel Turonski , T.R. O'Connell , M. Osipenko , A.I. Ostrovidov , M. Paolone , L.L. Pappalardo , K. Park , E. Pasyuk , P. Peng , W. Phelps , O. Pogorelko , J. Poudel , J.W. Price , Y. Prok , A.J.R. Puckett , B.A. Raue , M. Ripani , A. Rizzo , G. Rosner , C. Salgado , A. Schmidt , R.A. Schumacher , U. Shrestha , D. Sokhan , O. Soto , N. Sparveris , I.I. Strakovsky , S. Strauch , J.A. Tan , N. Tyler , M. Ungaro , L. Venturelli , H. Voskanyan , E. Voutier , N.K. Walford , C.S. Whisnant , M.H. Wood , J. Zhang , Z.W. Zhao
Abstract We report a measurement of a beam–target double-polarisation observable (E) for the γ → n → ( p ) → K + Σ − ( p ) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70 ≤ W ≤ 2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional “missing” resonance states, including the N ( 2120 ) 3 / 2 − resonance, are also quantified.
中文翻译：
中子上 K+Σ− 光产生中的光束-目标螺旋度不对称 E
摘要 我们报告了对 γ → n → ( p ) → K + Σ - ( p ) 反应的光束-目标双极化可观测值 (E) 的测量。这些数据是通过将杰斐逊实验室 B 厅的圆极化能量标记光子束撞击在纵向极化冷冻自旋氘化氢 (HD) 核目标上而获得的。有效中子目标的 E 可观测值是针对质心能量 1.70 ≤ W ≤ 2.30 GeV 确定的，CLAS 光谱仪在宽角度接受范围内检测到反应产物。这些新的双极化数据为激发中子态的奇怪衰变提供了独特的限制。将新数据包含在波恩-加奇纳理论模型中会导致许多已建立的核子共振的提取光耦合发生显着变化。
更新日期：2020-09-01
中文翻译：
中子上 K+Σ− 光产生中的光束-目标螺旋度不对称 E
摘要 我们报告了对 γ → n → ( p ) → K + Σ - ( p ) 反应的光束-目标双极化可观测值 (E) 的测量。这些数据是通过将杰斐逊实验室 B 厅的圆极化能量标记光子束撞击在纵向极化冷冻自旋氘化氢 (HD) 核目标上而获得的。有效中子目标的 E 可观测值是针对质心能量 1.70 ≤ W ≤ 2.30 GeV 确定的，CLAS 光谱仪在宽角度接受范围内检测到反应产物。这些新的双极化数据为激发中子态的奇怪衰变提供了独特的限制。将新数据包含在波恩-加奇纳理论模型中会导致许多已建立的核子共振的提取光耦合发生显着变化。
京公网安备 11010802027423号