Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment.
Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment.
复制标题
在超级神冈实验中寻找最终状态下的不可见粒子和带电轻子的核子和双核子衰变。
DOI：
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发表时间：
2015
影响因子：
8.6
通讯作者：
R. Wilkes
中科院分区：
文献类型：
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作者：
V. Takhistov;K. Abe;Y. Haga;Y. Hayato;M. Ikeda;K. Iyogi;J. Kameda;Y. Kishimoto;M. Miura;S. Moriyama;M. Nakahata;T. Nakajima;Y. Nakano;S. Nakayama;A. Orii;H. Sekiya;M. Shiozawa;A. Takeda;H. Tanaka;T. Tomura;R. Wendell;T. Irvine;T. Kajita;I. Kametani;K. Kaneyuki;Y. Nishimura;E. Richard;K. Okumura;L. Labarga;P. Fernandez;J. Gustafson;C. Kachulis;E. Kearns;J. Raaf;J. Stone;L. Sulak;S. Berkman;C. Nantais;H. Tanaka;S. Tobayama;M. Goldhaber;G. Carminati;W. Kropp;S. Mine;P. Weatherly;A. Renshaw;M. Smy;H. Sobel;K. Ganezer;B. Hartfiel;J. Hill;N. Hong;J. Kim;I. Lim;A. Himmel;Z. Li;K. Scholberg;C. Walter;T. Wongjirad;T. Ishizuka;S. Tasaka;J. Jang;J. Learned;S. Matsuno;S. Smith;M. Friend;T. Hasegawa;T. Ishida;T. Ishii;T. Kobayashi;T. Nakadaira;K. Nakamura;Y. Oyama;K. Sakashita;T. Sekiguchi;T. Tsukamoto;A. Suzuki;Y. Takeuchi;T. Yano;S. Hirota;K. Huang;K. Ieki;T. Kikawa;A. Minamino;T. Nakaya;K. Suzuki;S. Takahashi;Y. Fukuda;K. Choi;Y. Itow;T. Suzuki;P. Mijakowski;K. Frankiewicz;J. Hignight;J. Imber;C. Jung;X. Li;J. Palomino;M. Wilking;C. Yanagisawa;H. Ishino;T. Kayano;A. Kibayashi;Y. Koshio;T Mori;M. Sakuda;Y. Kuno;R. Tacik;S. Kim;H. Okazawa;Y. Choi;K. Nishijima;M. Koshiba;Y. Suda;Y. Totsuka;M. Yokoyama;C. Bronner;M. Hartz;K. Martens;L. Marti;Y. Suzuki;M. Vagins;J. Martin;P. de Perio;A. Konaka;S. Chen;Y. Zhang;R. Wilkes
Search results for nucleon decays p→e^{+}X, p→μ^{+}X, n→νγ (where X is an invisible, massless particle) as well as dinucleon decays np→e^{+}ν, np→μ^{+}ν, and np→τ^{+}ν in the Super-Kamiokande experiment are presented. Using single-ring data from an exposure of 273.4 kton·yr, a search for these decays yields a result consistent with no signal. Accordingly, lower limits on the partial lifetimes of τ_{p→e^{+}X}>7.9×10^{32} yr, τ_{p→μ^{+}X}>4.1×10^{32} yr, τ_{n→νγ}>5.5×10^{32} yr, τ_{np→e^{+}ν}>2.6×10^{32} yr, τ_{np→μ^{+}ν}>2.2×10^{32} yr, and τ_{np→τ^{+}ν}>2.9×10^{31} yr at a 90% confidence level are obtained. Some of these searches are novel.
Search results for nucleon decays p→e^{+}X, p→μ^{+}X, n→νγ (where X is an invisible, massless particle) as well as dinucleon decays np→e^{+}ν, np→μ^{+}ν, and np→τ^{+}ν in the Super-Kamiokande experiment are presented. Using single-ring data from an exposure of 273.4 kton·yr, a search for these decays yields a result consistent with no signal. Accordingly, lower limits on the partial lifetimes of τ_{p→e^{+}X}>7.9×10^{32} yr, τ_{p→μ^{+}X}>4.1×10^{32} yr, τ_{n→νγ}>5.5×10^{32} yr, τ_{np→e^{+}ν}>2.6×10^{32} yr, τ_{np→μ^{+}ν}>2.2×10^{32} yr, and τ_{np→τ^{+}ν}>2.9×10^{31} yr at a 90% confidence level are obtained. Some of these searches are novel.