An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab
An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab
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DOI：
10.1140/epja/s10050-021-00564-y
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发表时间：
2020-07
期刊：
影响因子：
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通讯作者：
A. Accardi;A. Afanasev;I. Albayrak;S. Ali;M. Amaryan;J. Annand;J. Arrington;A. Asaturyan;H. Atac;H. Avakian;T. Averett;C. Gayoso;X. Bai;L. Barion;M. Battaglieri;V. Bellini;R. Beminiwattha;F. Benmokhtar;V. Berdnikov;J. Bernauer;V. Bertone;A. Bianconi;A. Biselli;P. Bisio;P. Blunden;M. Boer;M. Bondí;K. Brinkmann;W. Briscoe;V. Burkert;T. Cao;A. Camsonne;R. Capobianco;L. Cardman;M. Carmignotto;M. Caudron;L. Causse;A. Celentano;P. Chatagnon;J. Chen;T. Chetry;G. Ciullo;E. Cline;P. Cole;M. Contalbrigo;G. Costantini;A. D’Angelo;L. Darm'e;D. Day;M. Defurne;M. Napoli;A. Deur;R. Vita;N. d'Hose;S. Diehl;M. Diefenthaler;B. Dongwi;R. Dupr'e;H. Dutrieux;D. Dutta;M. Ehrhart;Lamiaa El Fassi;L. Elouadrhiri;R. Ent;J. Erler;I. Fernando;A. Filippi;D. Flay;T. Forest;E. Fuchey;S. Fucini;Y. Furletova;H. Gao;D. Gaskell;A. Gasparian;T. Gautam;F. Girod;K. Gnanvo;J. Grames;G. N. Grauvoge;P. Guèye;M. Guidal;S. Habet;T. Hague;David Hamilton;O. Hansen;D. Hasell;M. Hattawy;D. Higinbotham;A. Hobart;T. Horn;C. Hyde;H. Ibrahim;A. Ilyichev;A. Italiano;K. Joo;S. Joosten;V. Khachatryan;N. Kalantarians;G. Kalicy;B. Karky;D. Keller;C. Keppel;M. Kerver;M. Khandaker;A. Kim;J. Kim;P. King;E. Kinney;V. Klimenko;H. Ko;M. Kohl;V. Kozhuharov;B. Kriesten;G. Krnjaic;V. Kubarovsky;T. Kutz;L. Lanza;M. Leali;P. Lenisa;N. Liyanage;Q. Liu;S. Liuti;J. Mammei;S. Mantry;D. Marchand;P. Markowitz;L. Marsicano;V. Mascagna;Malek Mazouz;M. McCaughan;B. Mckinnon;D. Mcnulty;W. Melnitchouk;A. Metz;Z. Meziani;S. Migliorati;M. Mihovilovič;R. Milner;A. Mkrtchyan;H. Mkrtchyan;A. Movsisyan;H. Moutarde;M. Muhoza;C. Camacho;J. Murphy;P. Nadel-Turonski;E. Nardi;J. Nazeer;S. Niccolai;G. Niculescu;R. Novotný;J. Owens;M. Paolone;L. Pappalardo;R. Paremuzyan;B. Pasquini;E. Pasyuk;T. Patel;I. Pegg;C. Peng;D. Perera;M. Poelker;K. Price;A. Puckett;M. Raggi;N. Randazzo;M. Rashad;M. Rathnayake;B. Raue;P. Reimer;M. Rinaldi;Alessandro Rizzo;Y. Roblin;J. Roche;O. Rondon-Aramayo;F. Sabati'e;G. Salmè;E. Santopinto;R. Estrada;B. Sawatzky;A. Schmidt;P. Schweitzer;S. Scopetta;V. Sergeyeva;M. Shabestari;A. Shahinyan;Y. Sharabian;S. vSirca;E. Smith;D. Sokhan;A. Somov;N. Sparveris;M. Spata;H. Spiesberger;M. Spreafico;S. Stepanyan;P. Stoler;I. Strakovsky;R. Suleiman;M. Suresh;P. Sznajder;H. Szumila-Vance;V. Tadevosyan;A. Tadepalli;A. Thomas;M. Tiefenback;R. Trotta;M. Ungaro;P. Valente;M. Vanderhaeghen;L. Venturelli;H. Voskanyan;E. Voutier;B. Wojtsekhowski;M. Wood;S. Wood;J. Xie;W. Xiong;Z. Ye;M. Yurov;H. Zaunick;S. Zhamkochyan;J. Zhang;S. Zhang;S. Zhao;Z. Zhao;X. Zheng;J. Zhou;C. Zorn
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文献类型：
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作者：
A. Accardi;A. Afanasev;I. Albayrak;S. Ali;M. Amaryan;J. Annand;J. Arrington;A. Asaturyan;H. Atac;H. Avakian;T. Averett;C. Gayoso;X. Bai;L. Barion;M. Battaglieri;V. Bellini;R. Beminiwattha;F. Benmokhtar;V. Berdnikov;J. Bernauer;V. Bertone;A. Bianconi;A. Biselli;P. Bisio;P. Blunden;M. Boer;M. Bondí;K. Brinkmann;W. Briscoe;V. Burkert;T. Cao;A. Camsonne;R. Capobianco;L. Cardman;M. Carmignotto;M. Caudron;L. Causse;A. Celentano;P. Chatagnon;J. Chen;T. Chetry;G. Ciullo;E. Cline;P. Cole;M. Contalbrigo;G. Costantini;A. D’Angelo;L. Darm'e;D. Day;M. Defurne;M. Napoli;A. Deur;R. Vita;N. d'Hose;S. Diehl;M. Diefenthaler;B. Dongwi;R. Dupr'e;H. Dutrieux;D. Dutta;M. Ehrhart;Lamiaa El Fassi;L. Elouadrhiri;R. Ent;J. Erler;I. Fernando;A. Filippi;D. Flay;T. Forest;E. Fuchey;S. Fucini;Y. Furletova;H. Gao;D. Gaskell;A. Gasparian;T. Gautam;F. Girod;K. Gnanvo;J. Grames;G. N. Grauvoge;P. Guèye;M. Guidal;S. Habet;T. Hague;David Hamilton;O. Hansen;D. Hasell;M. Hattawy;D. Higinbotham;A. Hobart;T. Horn;C. Hyde;H. Ibrahim;A. Ilyichev;A. Italiano;K. Joo;S. Joosten;V. Khachatryan;N. Kalantarians;G. Kalicy;B. Karky;D. Keller;C. Keppel;M. Kerver;M. Khandaker;A. Kim;J. Kim;P. King;E. Kinney;V. Klimenko;H. Ko;M. Kohl;V. Kozhuharov;B. Kriesten;G. Krnjaic;V. Kubarovsky;T. Kutz;L. Lanza;M. Leali;P. Lenisa;N. Liyanage;Q. Liu;S. Liuti;J. Mammei;S. Mantry;D. Marchand;P. Markowitz;L. Marsicano;V. Mascagna;Malek Mazouz;M. McCaughan;B. Mckinnon;D. Mcnulty;W. Melnitchouk;A. Metz;Z. Meziani;S. Migliorati;M. Mihovilovič;R. Milner;A. Mkrtchyan;H. Mkrtchyan;A. Movsisyan;H. Moutarde;M. Muhoza;C. Camacho;J. Murphy;P. Nadel-Turonski;E. Nardi;J. Nazeer;S. Niccolai;G. Niculescu;R. Novotný;J. Owens;M. Paolone;L. Pappalardo;R. Paremuzyan;B. Pasquini;E. Pasyuk;T. Patel;I. Pegg;C. Peng;D. Perera;M. Poelker;K. Price;A. Puckett;M. Raggi;N. Randazzo;M. Rashad;M. Rathnayake;B. Raue;P. Reimer;M. Rinaldi;Alessandro Rizzo;Y. Roblin;J. Roche;O. Rondon-Aramayo;F. Sabati'e;G. Salmè;E. Santopinto;R. Estrada;B. Sawatzky;A. Schmidt;P. Schweitzer;S. Scopetta;V. Sergeyeva;M. Shabestari;A. Shahinyan;Y. Sharabian;S. vSirca;E. Smith;D. Sokhan;A. Somov;N. Sparveris;M. Spata;H. Spiesberger;M. Spreafico;S. Stepanyan;P. Stoler;I. Strakovsky;R. Suleiman;M. Suresh;P. Sznajder;H. Szumila-Vance;V. Tadevosyan;A. Tadepalli;A. Thomas;M. Tiefenback;R. Trotta;M. Ungaro;P. Valente;M. Vanderhaeghen;L. Venturelli;H. Voskanyan;E. Voutier;B. Wojtsekhowski;M. Wood;S. Wood;J. Xie;W. Xiong;Z. Ye;M. Yurov;H. Zaunick;S. Zhamkochyan;J. Zhang;S. Zhang;S. Zhao;Z. Zhao;X. Zheng;J. Zhou;C. Zorn
极化和非极化的正电子束被认为是下一代轻子加速器实验计划的重要组成部分。在杰斐逊实验室（JLab）的强子物理计划的背景下，正电子束是补充，甚至是必要的，工具，用于精确理解核子和原子核的电磁结构，在弹性和深度非弹性制度。例如，来自核子的极化和非极化电子和正电子的弹性散射使得能够独立于模型确定其电磁形状因子。此外，极化和非极化电子和正电子的深虚散射允许明确分离光子和轻子对的轻子产生截面的不同贡献，从而能够准确确定核子和原子核广义部分子分布，并提供能量动量张量的引力形状因子。此外，正电子束通过寻找暗光子、精确测量电弱耦合和研究带电轻子味破坏，提供了粒子物理标准模型的替代测试的可能性。本文讨论了在JLab的高占空比正电子束的实验计划的前景。
Positron beams, both polarized and unpolarized, are identified as important ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic physics program at Jefferson Lab (JLab), positron beams are complementary, even essential, tools for a precise understanding of the electromagnetic structure of nucleons and nuclei, in both the elastic and deep-inelastic regimes. For instance, elastic scattering of polarized and unpolarized electrons and positrons from the nucleon enables a model independent determination of its electromagnetic form factors. Also, the deeply-virtual scattering of polarized and unpolarized electrons and positrons allows unambiguous separation of the different contributions to the cross section of the lepto-production of photons and of lepton-pairs, enabling an accurate determination of the nucleons and nuclei generalized parton distributions, and providing an access to the gravitational form factors of the energy-momentum tensor. Furthermore, positron beams offer the possibility of alternative tests of the Standard Model of particle physics through the search of a dark photon, the precise measurement of electroweak couplings, and the investigation of charged lepton flavor violation. This document discusses the perspectives of an experimental program with high duty-cycle positron beams at JLab.