Light relic neutralinos

被引:177
作者
Bottino, A [1 ]
Fornengo, N [1 ]
Scopel, S [1 ]
机构
[1] Univ Turin, Dipartimento Fis Teor, Sez Torino, I-10125 Turin, Italy
关键词
D O I
10.1103/PhysRevD.67.063519
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The relic abundance and the scalar cross section off the nucleon for light neutralinos (of mass below about 45 GeV) are evaluated in an effective MSSM model without GUT-inspired relations among the gaugino masses. It is shown that these neutralinos may provide a sizable contribution to the matter density in the Universe and produce measurable effects in WIMP direct detection experiments. These properties are elucidated in terms of simple analytical arguments.
引用
收藏
页数:6
相关论文
共 45 条
  • [1] ABDALLAH J, 2001, DELPHI 2001 085 CONF
  • [2] A measurement of the branching fraction for the inclusive B→Xsγ decays with the Belle detector
    Abe, K
    Abe, K
    Adachi, I
    Ahn, BS
    Aihara, H
    Akatsu, M
    Alimonti, G
    Aoki, K
    Asai, K
    Asano, Y
    Aso, T
    Aulchenko, V
    Aushev, T
    Bakich, AM
    Banas, E
    Bartel, W
    Behari, S
    Behera, PK
    Beiline, D
    Bondar, A
    Bozek, A
    Browder, TE
    Casey, BCK
    Chang, P
    Chao, Y
    Cheon, BG
    Choi, SK
    Choi, Y
    Doi, Y
    Dragic, J
    Drutskoy, A
    Eidelman, S
    Enari, Y
    Enomoto, R
    Fang, F
    Fujii, H
    Fukunaga, C
    Fukushima, M
    Garmash, A
    Gordon, A
    Gotow, K
    Guler, H
    Guo, R
    Haba, J
    Hamasaki, H
    Hanagaki, K
    Handa, F
    Hara, K
    Hara, T
    Haruyama, T
    [J]. PHYSICS LETTERS B, 2001, 511 (2-4) : 151 - 158
  • [3] Exclusion limits on the WIMP-nucleon cross section from the cryogenic dark matter search
    Abrams, D
    Akerib, DS
    Armel-Funkhouser, MS
    Baudis, L
    Bauer, DA
    Bolozdynya, A
    Brink, PL
    Bunker, R
    Cabrera, B
    Caldwell, DO
    Castle, JP
    Chang, CL
    Clarke, RM
    Crisler, MB
    Dixon, R
    Driscoll, D
    Eichblatt, S
    Gaitskell, RJ
    Golwala, SR
    Haller, EE
    Hellmig, J
    Holmgren, D
    Huber, ME
    Kamat, S
    Lu, A
    Mandic, V
    Martinis, JM
    Meunier, P
    Nam, SW
    Nelson, H
    Perera, TA
    Isaac, MCP
    Rau, W
    Ross, RR
    Saab, T
    Sadoulet, B
    Sander, J
    Schnee, RW
    Shutt, T
    Smith, A
    Sonnenschein, AH
    Spadafora, AL
    Wang, G
    Yellin, S
    Young, BA
    [J]. PHYSICAL REVIEW D, 2002, 66 (12):
  • [4] Search for neutral supersymmetric Higgs bosons in p(p)over-bar collisions at √s=1.8 TeV
    Affolder, T
    Akimoto, H
    Akopian, A
    Albrow, MG
    Amaral, P
    Amendolia, SR
    Amidei, D
    Anikeev, K
    Antos, J
    Apollinari, G
    Arisawa, T
    Asakawa, T
    Ashmanskas, W
    Azfar, F
    Azzi-Bacchetta, P
    Bacchetta, N
    Bailey, MW
    Bailey, S
    de Barbaro, P
    Barbaro-Galtieri, A
    Barnes, VE
    Barnett, BA
    Baroiant, S
    Barone, M
    Bauer, G
    Bedeschi, F
    Belforte, S
    Bell, WH
    Bellettini, G
    Bellinger, J
    Benjamin, D
    Bensinger, J
    Beretvas, A
    Berge, JP
    Berryhill, J
    Bevensee, B
    Bhatti, A
    Binkley, M
    Bisello, D
    Bishai, M
    Blair, RE
    Blocker, C
    Bloom, K
    Blumenfeld, B
    Blusk, SR
    Bocci, A
    Bocek, A
    Bokhari, W
    Bolla, G
    Bonushkin, Y
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (20) : 4472 - 4478
  • [5] AHMED S, HEPEX9908022
  • [6] Implications of the Higgs boson searches on different soft SUSY-breaking scenarios
    Ambrosanio, S
    Dedes, A
    Heinemeyer, S
    Su, S
    Weiglein, G
    [J]. NUCLEAR PHYSICS B, 2002, 624 (1-2) : 3 - 44
  • [7] ARNOWITT R, HEPPH0010244
  • [8] Baer H, 2002, J HIGH ENERGY PHYS
  • [9] A measurement of the inclusive b→sγ branching ratio
    Barate, R
    Buskulic, D
    Decamp, D
    Ghez, P
    Goy, C
    Lees, JP
    Lucotte, A
    Merle, E
    Minard, MN
    Nief, JY
    Pietrzyk, B
    Alemany, R
    Boix, G
    Casado, MP
    Chmeissani, M
    Crespo, JM
    Delfino, M
    Fernandez, E
    Fernandez-Bosman, M
    Garrido, L
    Grauges, E
    Juste, A
    Martinez, M
    Merino, G
    Miquel, R
    Mir, LM
    Park, IC
    Pascual, A
    Perlas, JA
    Riu, I
    Sanchez, F
    Colaleo, A
    Creanza, D
    de Palma, M
    Gelao, G
    Iaselli, G
    Maggi, G
    Maggi, M
    Nuzzo, S
    Ranieri, A
    Raso, G
    Ruggieri, F
    Selvaggi, G
    Silvestris, L
    Tempesta, P
    Tricomi, A
    Zito, G
    Huang, X
    Lin, J
    Ouyang, Q
    [J]. PHYSICS LETTERS B, 1998, 429 (1-2) : 169 - 187
  • [10] Update of the direct detection of dark matter and the role of the nuclear spin
    Bednyakov, VA
    Klapdor-Kleingrothaus, HV
    [J]. PHYSICAL REVIEW D, 2001, 63 (09)