High-energy cosmic antiprotons from Kaluza–Klein dark matter
High-energy cosmic antiprotons from Kaluza–Klein dark matter
复制标题
来自卡鲁扎-克莱因暗物质的高能宇宙反质子
DOI:
10.1088/1475-7516/2005/08/006
复制
发表时间:
2005
影响因子:
6.4
通讯作者:
T. Bringmann
中科院分区:
文献类型:
--
作者:
T. Bringmann
The lightest Kaluza–Klein particle (LKP) in models with universal extra dimensions is an interesting dark matter candidate that has recently received great attention. Here, we investigate the antiproton flux from LKP annihilations in the galactic halo. In our analysis we include different halo density profiles and allow for part of the dark matter to be concentrated in ‘clumps’ rather than being distributed homogeneously. After re-analysing the observational bounds on the allowed amount of clumpiness, we find that LKP annihilations may well give a significant contribution to the antiproton flux at energies higher than about 10 GeV, while for energies above around 500 GeV the conventional background is expected to dominate again. The shortly upcoming PAMELA satellite will already be able to measure part of this high-energy window, while planned experiments like AMS-02 will have access to the full energy range of interest.
DOI:
10.1111/j.1365-2966.2004.07586.x
发表时间:
2003-11
影响因子:
4.8
作者:
J. Navarro;E. Hayashi;C. Power;A. Jenkins;C. Frenk;S. White;V. Springel;J. Stadel;T. Q. U. O. Vict
通讯作者:
J. Navarro;E. Hayashi;C. Power;A. Jenkins;C. Frenk;S. White;V. Springel;J. Stadel;T. Q. U. O. Vict
影响因子:
8.6
作者:
Orito, S;Maeno, T;Yoshimura, K
通讯作者:
Yoshimura, K
DOI:
--
发表时间:
2005
期刊:
The Astrophysical Journal 633
影响因子:
--
作者:
Takeshi Nishimura;Akichika Mikami;Juri Suzuki;Tetsuro Matsuzawa;西村剛;西村剛;Takeshi Nishimura;Takeshi Nishimura;Takeshi Nishimura;西村剛;西村剛;Takeshi Nishimura;Takeshi Nishimura;松下智直;Oka et al.;N.Kashikawa;Masahiro Nagashima;Masahiro Nagashima;Masahiro Nagashima;T.Oda
通讯作者:
T.Oda