Beam-target helicity asymmetry E in K0Λ and K0Σ0 photoproduction on the neutron

Beam-target helicity asymmetry E in K0Λ and K0Σ0 photoproduction on the neutron
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DOI：
10.1103/physrevc.98.045205
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发表时间：
2018-05
期刊：
Physical Review C
影响因子：
3.1
通讯作者：
C. Ho;R. Schumacher;A. D’Angelo;A. Deur;J. Fleming;C. Hanretty;T. Kageya;F. Klein;E. Klempt;M. Lowry;H. Lu;V. Nikonov;P. Peng;A. Sandorfi;A. Sarantsev;I. Strakovsky;N. Walford;X. Wei;R. Workman;K. Adhikari;S. Adhikari;D. Adikaram;Z. Akbar;J. Ball;L. Barion;M. Bashkanov;C. Bass;M. Battaglieri;I. Bedlinskiy;A. Biselli;W. Briscoe;S. Boiarinov;V. Burkert;F. Cao;D. Carman;A. Celentano;S. Chandavar;G. Charles;P. Chatagnon;T. Chetry;G. Ciullo;B. Clary;P. Cole;M. Contalbrigo;V. Crede;R. Vita;M. Defurne;S. Diehl;C. Djalali;R. Dupré;H. Egiyan;M. Ehrhart;A. Alaoui;Lamiaa El Fassi;P. Eugenio;G. Fedotov;S. Fegan;R. Fersch;A. Filippi;A. Fradi;Y. Ghandilyan;K. Giovanetti;F. Girod;W. Gohn;E. Golovatch;R. Gothe;K. Griffioen;M. Guidal;K. Hafidi;H. Hakobyan;N. Harrison;M. Hattawy;D. Heddle;K. Hicks;M. Holtrop;Y. Ilieva;D. Ireland;B. Ishkhanov;E. Isupov;D. Jenkins;H. Jo;S. Johnston;M. Kabir;D. Keller;G. Khachatryan;M. Khachatryan;M. Khandaker;A. Kim;W. Kim;A. Klein;V. Kubarovsky;V. Lainé;L. Lanza;P. Lenisa;K. Livingston;I. Macgregor;D. Marchand;N. Markov;M. Mayer;B. Mckinnon;C. Meyer;M. Mirazita;V. Mokeev;R. Montgomery;A. Movsisyan;C. Camacho;P. Nadel-Turonski;S. Niccolai;G. Niculescu;T. O'Connell;M. Osipenko;A. Ostrovidov;M. Paolone;R. Paremuzyan;K. Park;E. Pasyuk;O. Pogorelko;J. Price;Y. Prok;D. Protopopescu;M. Rehfuss;M. Ripani;D. Riser;Alessandro Rizzo;G. Rosner;F. Sabati'e;C. Salgado;Y. Sharabian;I. Skorodumina;G. Smith;D. Sober;D. Sokhan;N. Sparveris;S. Strauch;M. Taiuti;J. Tan;M. Ungaro;H. Voskanyan;E. Voutier;R. Wang;D. Watts;L. Weinstein;C. Whisnant;M. Wood;N. Zachariou;J. Zhang;Z. Zhao;I. Zonta
C. Ho;R. Schumacher;A. D’Angelo;A. Deur;J. Fleming;C. Hanretty;T. Kageya;F. Klein;E. Klempt;M. Lowry;H. Lu;V. Nikonov;P. Peng;A. Sandorfi;A. Sarantsev;I. Strakovsky;N. Walford;X. Wei;R. Workman;K. Adhikari;S. Adhikari;D. Adikaram;Z. Akbar;J. Ball;L. Barion;M. Bashkanov;C. Bass;M. Battaglieri;I. Bedlinskiy;A. Biselli;W. Briscoe;S. Boiarinov;V. Burkert;F. Cao;D. Carman;A. Celentano;S. Chandavar;G. Charles;P. Chatagnon;T. Chetry;G. Ciullo;B. Clary;P. Cole;M. Contalbrigo;V. Crede;R. Vita;M. Defurne;S. Diehl;C. Djalali;R. Dupré;H. Egiyan;M. Ehrhart;A. Alaoui;Lamiaa El Fassi;P. Eugenio;G. Fedotov;S. Fegan;R. Fersch;A. Filippi;A. Fradi;Y. Ghandilyan;K. Giovanetti;F. Girod;W. Gohn;E. Golovatch;R. Gothe;K. Griffioen;M. Guidal;K. Hafidi;H. Hakobyan;N. Harrison;M. Hattawy;D. Heddle;K. Hicks;M. Holtrop;Y. Ilieva;D. Ireland;B. Ishkhanov;E. Isupov;D. Jenkins;H. Jo;S. Johnston;M. Kabir;D. Keller;G. Khachatryan;M. Khachatryan;M. Khandaker;A. Kim;W. Kim;A. Klein;V. Kubarovsky;V. Lainé;L. Lanza;P. Lenisa;K. Livingston;I. Macgregor;D. Marchand;N. Markov;M. Mayer;B. Mckinnon;C. Meyer;M. Mirazita;V. Mokeev;R. Montgomery;A. Movsisyan;C. Camacho;P. Nadel-Turonski;S. Niccolai;G. Niculescu;T. O'Connell;M. Osipenko;A. Ostrovidov;M. Paolone;R. Paremuzyan;K. Park;E. Pasyuk;O. Pogorelko;J. Price;Y. Prok;D. Protopopescu;M. Rehfuss;M. Ripani;D. Riser;Alessandro Rizzo;G. Rosner;F. Sabati'e;C. Salgado;Y. Sharabian;I. Skorodumina;G. Smith;D. Sober;D. Sokhan;N. Sparveris;S. Strauch;M. Taiuti;J. Tan;M. Ungaro;H. Voskanyan;E. Voutier;R. Wang;D. Watts;L. Weinstein;C. Whisnant;M. Wood;N. Zachariou;J. Zhang;Z. Zhao;I. Zonta
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
C. Ho;R. Schumacher;A. D’Angelo;A. Deur;J. Fleming;C. Hanretty;T. Kageya;F. Klein;E. Klempt;M. Lowry;H. Lu;V. Nikonov;P. Peng;A. Sandorfi;A. Sarantsev;I. Strakovsky;N. Walford;X. Wei;R. Workman;K. Adhikari;S. Adhikari;D. Adikaram;Z. Akbar;J. Ball;L. Barion;M. Bashkanov;C. Bass;M. Battaglieri;I. Bedlinskiy;A. Biselli;W. Briscoe;S. Boiarinov;V. Burkert;F. Cao;D. Carman;A. Celentano;S. Chandavar;G. Charles;P. Chatagnon;T. Chetry;G. Ciullo;B. Clary;P. Cole;M. Contalbrigo;V. Crede;R. Vita;M. Defurne;S. Diehl;C. Djalali;R. Dupré;H. Egiyan;M. Ehrhart;A. Alaoui;Lamiaa El Fassi;P. Eugenio;G. Fedotov;S. Fegan;R. Fersch;A. Filippi;A. Fradi;Y. Ghandilyan;K. Giovanetti;F. Girod;W. Gohn;E. Golovatch;R. Gothe;K. Griffioen;M. Guidal;K. Hafidi;H. Hakobyan;N. Harrison;M. Hattawy;D. Heddle;K. Hicks;M. Holtrop;Y. Ilieva;D. Ireland;B. Ishkhanov;E. Isupov;D. Jenkins;H. Jo;S. Johnston;M. Kabir;D. Keller;G. Khachatryan;M. Khachatryan;M. Khandaker;A. Kim;W. Kim;A. Klein;V. Kubarovsky;V. Lainé;L. Lanza;P. Lenisa;K. Livingston;I. Macgregor;D. Marchand;N. Markov;M. Mayer;B. Mckinnon;C. Meyer;M. Mirazita;V. Mokeev;R. Montgomery;A. Movsisyan;C. Camacho;P. Nadel-Turonski;S. Niccolai;G. Niculescu;T. O'Connell;M. Osipenko;A. Ostrovidov;M. Paolone;R. Paremuzyan;K. Park;E. Pasyuk;O. Pogorelko;J. Price;Y. Prok;D. Protopopescu;M. Rehfuss;M. Ripani;D. Riser;Alessandro Rizzo;G. Rosner;F. Sabati'e;C. Salgado;Y. Sharabian;I. Skorodumina;G. Smith;D. Sober;D. Sokhan;N. Sparveris;S. Strauch;M. Taiuti;J. Tan;M. Ungaro;H. Voskanyan;E. Voutier;R. Wang;D. Watts;L. Weinstein;C. Whisnant;M. Wood;N. Zachariou;J. Zhang;Z. Zhao;I. Zonta

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本文报道了在1.70≤W≤2.34 GeV能量范围内，γ - n - → K 0 Λ和K 0 Λ 0通道的电子束-靶螺旋度不对称性的首次测量结果。杰斐逊实验室的CLAS系统使用圆偏振光子束和由具有低背景污染的纵向偏振固体分子氘化氢组成的目标进行测量。多变量分析方法提升决策树被用来隔离感兴趣的反应。从KaonMAID，SAID，和Bonn-Gatchina模型的预测比较。这些结果将有助于分离赝标介子光生过程中I=0和I=1的光耦合跃迁振幅。
We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.