3.5 keV X-ray line and R-parity conserving supersymmetry

被引：13
作者：
Dutta, Bhaskar [1 ]
Gogoladze, Ilia [2 ]
Khalid, Rizwan [3 ]
Shafi, Qaisar [2 ]
机构：
[1] Texas A&M Univ, Dept Phys & Astron, Mitchell Inst Fundamental Phys & Astron, College Stn, TX 77843 USA
[2] Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
[3] Natl Univ Sci & Technol, Sch Nat Sci, Dept Phys, Islamabad, Pakistan
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2014年 / 11期
基金：
美国国家科学基金会;
关键词：
Supersymmetry Phenomenology; DARK-MATTER; COSMOLOGICAL CONSTRAINTS; SIGNAL; AXINO; SPECTRUM; MODELS;
D O I：
10.1007/JHEP11(2014)018
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present some R-parity conserving supersymmetric models which can accommodate the 3.5 keV X-ray line reported in recent spectral studies of the Perseus galaxy cluster and the Andromeda galaxy. Within the Minimal Supersymmetric Standard Model (MSSM) framework, the dark matter (DM) gravitino (or the axino) with mass of around 7 keV decays into a massless neutralino (bino) and a photon with lifetime similar to 10(28) sec. The massless bino contributes to the effective number of neutrino species N-eff and future data will test this prediction. In the context of NMSSM, we first consider scenarios where the bino is massless and the singlino mass is around 7 keV. We also consider quasi-degenerate bino-singlino scenarios where the mass scale of DM particles are O(GeV) or larger. In such a scenario we require the mass gap to generate the 3.5 keV line. We comment on the possibility of a 7 keV singlino decaying via R parity violating couplings while all other neutralinos are heavy.
引用
收藏
页码：1 / 17
页数：17
相关论文
共 96 条
  • [1] Aad G, 2014, J HIGH ENERGY PHYS, P1, DOI 10.1007/JHEP05(2014)071
  • [2] Aad G, 2014, J HIGH ENERGY PHYS, DOI 10.1007/JHEP04(2014)169
  • [3] Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
    Aad, G.
    Abajyan, T.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdelalim, A. A.
    Abdinov, O.
    Aben, R.
    Abi, B.
    Abolins, M.
    AbouZeid, U. S.
    Abramowicz, H.
    Abreu, H.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Adomeit, S.
    Adragna, P.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Aharrouche, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akdogan, T.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alam, M. S.
    Alam, M. A.
    Albert, J.
    Albrand, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Allbrooke, B. M. M.
    [J]. PHYSICS LETTERS B, 2012, 716 (01) : 1 - 29
  • [4] Resonantly Produced 7 keV Sterile Neutrino Dark Matter Models and the Properties of Milky Way Satellites
    Abazajian, Kevork N.
    [J]. PHYSICAL REVIEW LETTERS, 2014, 112 (16)
  • [5] Planck 2013 results. XVI. Cosmological parameters
    Ade, P. A. R.
    Aghanim, N.
    Armitage-Caplan, C.
    Arnaud, M.
    Ashdown, M.
    Atrio-Barandela, F.
    Aumont, J.
    Baccigalupi, C.
    Banday, A. J.
    Barreiro, R. B.
    Bartlett, J. G.
    Battaner, E.
    Benabed, K.
    Benoit, A.
    Benoit-Levy, A.
    Bernard, J. -P.
    Bersanelli, M.
    Bielewicz, P.
    Bobin, J.
    Bock, J. J.
    Bonaldi, A.
    Bond, J. R.
    Borrill, J.
    Bouchet, F. R.
    Bridges, M.
    Bucher, M.
    Burigana, C.
    Butler, R. C.
    Calabrese, E.
    Cappellini, B.
    Cardoso, J. -F.
    Catalano, A.
    Challinor, A.
    Chamballu, A.
    Chary, R. -R.
    Chen, X.
    Chiang, H. C.
    Chiang, L. -Y
    Christensen, P. R.
    Church, S.
    Clements, D. L.
    Colombi, S.
    Colombo, L. P. L.
    Couchot, F.
    Coulais, A.
    Crill, B. P.
    Curto, A.
    Cuttaia, F.
    Danese, L.
    Davies, R. D.
    [J]. ASTRONOMY & ASTROPHYSICS, 2014, 571
  • [6] Detection of B-Mode Polarization at Degree Angular Scales by BICEP2
    Ade, P. A. R.
    Aikin, R. W.
    Barkats, D.
    Benton, S. J.
    Bischoff, C. A.
    Bock, J. J.
    Brevik, J. A.
    Buder, I.
    Bullock, E.
    Dowell, C. D.
    Duband, L.
    Filippini, J. P.
    Fliescher, S.
    Golwala, S. R.
    Halpern, M.
    Hasselfield, M.
    Hildebrandt, S. R.
    Hilton, G. C.
    Hristov, V. V.
    Irwin, K. D.
    Karkare, K. S.
    Kaufman, J. P.
    Keating, B. G.
    Kernasovskiy, S. A.
    Kovac, J. M.
    Kuo, C. L.
    Leitch, E. M.
    Lueker, M.
    Mason, P.
    Netterfield, C. B.
    Nguyen, H. T.
    O'Brient, R.
    Ogburn, R. W.
    Orlando, A.
    Pryke, C.
    Reintsema, C. D.
    Richter, S.
    Schwarz, R.
    Sheehy, C. D.
    Staniszewski, Z. K.
    Sudiwala, R. V.
    Teply, G. P.
    Tolan, J. E.
    Turner, A. D.
    Vieregg, A. G.
    Wong, C. L.
    Yoon, K. W.
    [J]. PHYSICAL REVIEW LETTERS, 2014, 112 (24)
  • [7] Sparticle spectroscopy from SO(10) GUT with a unified Higgs sector
    Ajaib, M. Adeel
    Gogoladze, Ilia
    Shafi, Qaisar
    [J]. PHYSICAL REVIEW D, 2013, 88 (09):
  • [8] keV photon emission from light nonthermal dark matter
    Allahverdi, Rouzbeh
    Dutta, Bhaskar
    Gao, Yu
    [J]. PHYSICAL REVIEW D, 2014, 89 (12):
  • [9] Nonthermal dark matter in string compactifications
    Allahverdi, Rouzbeh
    Cicoli, Michele
    Dutta, Bhaskar
    Sinha, Kuver
    [J]. PHYSICAL REVIEW D, 2013, 88 (09):
  • [10] Cladogenesis: Baryon-dark matter coincidence from branchings in moduli decay
    Allahverdi, Rouzbeh
    Dutta, Bhaskar
    Sinha, Kuver
    [J]. PHYSICAL REVIEW D, 2011, 83 (08):
12345678910