Signal yields of keV electronic recoils and their discrimination from nuclear recoils in liquid xenon
Signal yields of keV electronic recoils and their discrimination from nuclear recoils in liquid xenon
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DOI：
10.1103/physrevd.97.092007
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发表时间：
2017-09
影响因子：
5
通讯作者：
E. Aprile;J. Aalbers;F. Agostini;M. Alfonsi;F. Amaro;M. Anthony;F. Arneodo;P. Barrow;L. Baudis;B. Bauermeister;M. Benabderrahmane;T. Berger;P. Breur;A. Brown;E. Brown;S. Bruenner;G. Bruno;R. Budnik;L. Butikofer;J. Calvén;J. Cardoso;M. Cervantes;D. Cichon;D. Coderre;A. Colijn;J. Conrad;J. Cussonneau;M. P. Decowski;P. Perio;P. Gangi;A. Giovanni;S. Diglio;G. Eurin;J. Fei;A. Ferella;A. Fieguth;W. Fulgione;A. G. Rosso;M. Galloway;F. Gao;M. Garbini;C. Geis;L. Goetzke;L. Grandi;Z. Greene;C. Grignon;C. Hasterok;E. Hogenbirk;R. Itay;B. Kaminsky;S. Kazama;G. Kessler;A. Kish;H. Landsman;R. Lang;D. Lellouch;L. Levinson;Q. Lin;S. Lindemann;M. Lindner;F. Lombardi;J. Lopes;A. Manfredini;I. Mariş;T. Undagoitia;J. Masbou;F. V. Massoli;D. Masson;D. Mayani;M. Messina;K. Micheneau;A. Molinario;K. Moraa;M. Murra;J. Naganoma;K. Ni;U. Oberlack;P. Pakarha;B. Pelssers;R. Persiani;F. Piastra;J. Pienaar;V. Pizzella;M. Piro;G. Plante;N. Priel;D. R. Garc'ia;L. Rauch;S. Reichard;C. Reuter;A. Rizzo;N. Rupp;R. Saldanha;J. M. F. Santos;G. Sartorelli;M. Scheibelhut;S. Schindler;J. Schreiner;M. Schumann;L. Lavina;M. Selvi;P. Shagin;E. Shockley;M. Silva;H. Simgen;M. Sivers;A. Stein;D. Thers;A. Tiseni;G. Trinchero;C. Tunnell;M. Vargas;H. Wang;Z. Wang;Y. Wei;C. Weinheimer;J. Wulf;J. Ye;Y. Zhang
中科院分区：
文献类型：
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作者：
E. Aprile;J. Aalbers;F. Agostini;M. Alfonsi;F. Amaro;M. Anthony;F. Arneodo;P. Barrow;L. Baudis;B. Bauermeister;M. Benabderrahmane;T. Berger;P. Breur;A. Brown;E. Brown;S. Bruenner;G. Bruno;R. Budnik;L. Butikofer;J. Calvén;J. Cardoso;M. Cervantes;D. Cichon;D. Coderre;A. Colijn;J. Conrad;J. Cussonneau;M. P. Decowski;P. Perio;P. Gangi;A. Giovanni;S. Diglio;G. Eurin;J. Fei;A. Ferella;A. Fieguth;W. Fulgione;A. G. Rosso;M. Galloway;F. Gao;M. Garbini;C. Geis;L. Goetzke;L. Grandi;Z. Greene;C. Grignon;C. Hasterok;E. Hogenbirk;R. Itay;B. Kaminsky;S. Kazama;G. Kessler;A. Kish;H. Landsman;R. Lang;D. Lellouch;L. Levinson;Q. Lin;S. Lindemann;M. Lindner;F. Lombardi;J. Lopes;A. Manfredini;I. Mariş;T. Undagoitia;J. Masbou;F. V. Massoli;D. Masson;D. Mayani;M. Messina;K. Micheneau;A. Molinario;K. Moraa;M. Murra;J. Naganoma;K. Ni;U. Oberlack;P. Pakarha;B. Pelssers;R. Persiani;F. Piastra;J. Pienaar;V. Pizzella;M. Piro;G. Plante;N. Priel;D. R. Garc'ia;L. Rauch;S. Reichard;C. Reuter;A. Rizzo;N. Rupp;R. Saldanha;J. M. F. Santos;G. Sartorelli;M. Scheibelhut;S. Schindler;J. Schreiner;M. Schumann;L. Lavina;M. Selvi;P. Shagin;E. Shockley;M. Silva;H. Simgen;M. Sivers;A. Stein;D. Thers;A. Tiseni;G. Trinchero;C. Tunnell;M. Vargas;H. Wang;Z. Wang;Y. Wei;C. Weinheimer;J. Wulf;J. Ye;Y. Zhang
用XENON100探测器研究了在漂移场分别为92V/cm、154V/cm和366V/cm时，液体氙气对氚β衰变产生的低于15keV的低能电子反冲的响应。采用基于马尔可夫链蒙特卡罗的数据模拟拟合方法，从实验数据中提取光子产额和复合涨落。在两个低场下测量的光子产额与文献中的结果一致；在366V/cm的高场下还进行了额外的测量。在这些低能量下，研究了电子和核反冲的分辨以及它与漂移场和光子探测效率的关系。这一结果为利用液态氙气寻找暗物质提供了新的测量方法。
We report on the response of liquid xenon to low energy electronic recoils below 15 keV from beta decays of tritium at drift fields of 92 V/cm, 154 V/cm and 366 V/cm using the XENON100 detector. A data-to-simulation fitting method based on Markov Chain Monte Carlo is used to extract the photon yields and recombination fluctuations from the experimental data. The photon yields measured at the two lower fields are in agreement with those from literature; additional measurements at a higher field of 366 V/cm are presented. The electronic and nuclear recoil discrimination as well as its dependence on the drift field and photon detection efficiency are investigated at these low energies. The results provide new measurements in the energy region of interest for dark matter searches using liquid xenon.