Heavy right-handed neutrinos and dark matter in the ν CMSSM
Heavy right-handed neutrinos and dark matter in the ν CMSSM
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ν CMSSM 中的重右手中微子和暗物质
DOI：
10.1103/physrevd.80.095015
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发表时间：
2009
影响因子：
5
通讯作者：
K. Olive
中科院分区：
文献类型：
--
作者：
K. Kadota;K. Olive
本文系统地研究了包含三个右手中微子的约束最小超对称标准模型（{nu}CMSSM）中I型跷跷板机制对暗物质丰度的影响.当m{sub 0}，m{sub 1/2}较大时，我们利用大中微子Yukawa耦合对up-type Higgs重整化群演化的影响.特别是，我们表明，焦点规模可以大大超过电弱规模导致的焦点区域的遗迹密度的中性伴子的WMAP确定的范围内的情况下。我们还讨论了右手中微子对所谓的漏斗区的影响，在那里的遗物密度是通过一个沉重的希格斯粒子的s-通道湮灭控制。对于较小的m{sub 0}，m{sub 1/2}值，我们讨论了sneutrino共湮灭区的可能性，重点讨论了由于中微子Yukawa耦合对左手slepton二重态质量的抑制.我们考虑两种类型的玩具模型符合正常或倒置层次的中微子质量。
We perform a systematic study of the effects of the type-I seesaw mechanism on the dark matter abundance in the constrained minimal supersymmetric standard model (CMSSM) which includes three right-handed neutrinos (the {nu}CMSSM). For large values of m{sub 0}, m{sub 1/2}, we exploit the effects of large neutrino Yukawa couplings on the renormalization group evolution of the up-type Higgs. In particular, we show that the focus point scale can greatly exceed the electroweak scale resulting in the absence of a focus point region for which the relic density of neutralinos is within the range determined by WMAP. We also discuss the effects of the right-handed neutrinos on the so-called funnel region, where the relic density is controlled by s-channel annihilations through a heavy Higgs. For small values of m{sub 0}, m{sub 1/2}, we discuss the possibility of sneutrino coannihilation regions with an emphasis on the suppression of the left-handed slepton doublet masses due to the neutrino Yukawa coupling. We consider two types of toy models consistent with either the normal or inverted hierarchy of neutrino masses.
b 中光子能谱的包容性测量 --> sgamma 衰变。
影响因子：
8.6
作者：
P. Koppenburg;K. Abe;T. Abe;I. Adachi;H. Aihara;M. Akatsu;Y. Asano;V. Aulchenko;T. Aushev;A. Bakich;Y. Ban;A. Bay;U. Bitenc;I. Bizjak;A. Bondar;A. Bozek;M. Bračko;T. Browder;P. Chang;Y. Chao;K.F. Chen;B. Cheon;Y. Choi;A. Chuvikov;S. Cole;M. Danilov;M. Dash;L. Dong;A. Drutskoy;S. Eidelman;V. Eiges;Y. Enari;F. Fang;S. Fratina;N. Gabyshev;A. Garmash;T. Gershon;G. Gokhroo;B. Golob;J. Haba;H. Hayashii;M. Hazumi;T. Higuchi;L. Hinz;T. Hokuue;Y. Hoshi;W. Hou;Y. Hsiung;T. Iijima;K. Inami;A. Ishikawa;R. Itoh;H. Iwasaki;M. Iwasaki;J. Kang;J. Kang;N. Katayama;H. Kawai;T. Kawasaki;H. Kichimi;H. Kim;J. Kim;S. Kim;T. Kim;S. Korpar;P. Križan;P. Krokovny;S. Kumar;A. Kuzmin;Y. Kwon;J. Lange;G. Leder;S. Lee;T. Lesiak;J. Li;A. Limosani;S. Lin;J. Macnaughton;G. Majumder;F. Mandl;T. Matsumoto;Y. Mikami;W. Mitaroff;K. Miyabayashi;H. Miyake;H. Miyata;D. Mohapatra;G. Moloney;Takashi Mori;T. Nagamine;Y. Nagasaka;T. Nakadaira;E. Nakano;M. Nakao;Z. Natkaniec;K. Neichi;S. Nishida;O. Nitoh;T. Nozaki;S. Ogawa;T. Ohshima;T. Okabe;S. Okuno;S. Olsen;W. Ostrowicz;H. Ozaki;P. Pakhlov;H. Palka;C. Park;H. Park;N. Parslow;L. Peak;L. Piilonen;F. Ronga;M. Różańska;H. Sagawa;S. Saitoh;Y. Sakai;T. Sarangi;O. Schneider;C. Schwanda;A. Schwartz;S. Semenov;K. Senyo;R. Seuster;M. Sevior;H. Shibuya;N. Soni;R. Stamen;S. Stanič;M. Starič;T. Sumiyoshi;S. Suzuki;O. Tajima;F. Takasaki;N. Tamura;M. Tanaka;G. Taylor;T. Tomura;K. Trabelsi;T. Tsuboyama;T. Tsukamoto;S. Uehara;T. Uglov;K. Ueno;S. Uno;Y. Ushiroda;G. Varner;K. Varvell;C. Wang;C. H. Wang;M. Watanabe;B. Yabsley;Y. Yamada;A. Yamaguchi;Y. Yamashita;M. Yamauchi;H. Yanai;H. Yang;J. Ying;Y. Yusa;C. Zhang;Z. Zhang;T. Ziegler;D. Žontar
通讯作者：
D. Žontar