Ultrahigh-energy cosmic rays particle spectra from crypton decays

被引：31

作者：

Ellis, John ^{[1
]}

Mayes, V. E.

Nanopoulos, D. V.

机构：

[1] CERN, Div Theory, Dept Phys, CH-1211 Geneva 23, Switzerland

[2] Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA

[3] Houston Adv Res Ctr, Astroparticle Phys Grp, The Woodlands, TX 77381 USA

[4] Acad Athens, Div Nat Sci, Athens 10679, Greece

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.74.115003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the spectra of ultrahigh-energy cosmic rays (UHECRs) in an explicit top-down model based on the decays of metastable neutral "crypton" states in a flipped SU(5) string model. For each of the eight specific 10th-order superpotential operators that might dominate crypton decays, we calculate the spectra of both protons and photons, using a code incorporating supersymmetric evolution of the injected spectra. For all the decay operators, the total UHECR spectra are compatible with the available data. Also, the fractions of photons are compatible with all the published upper limits, but may be detectable in future experiments.

引用

页数：11

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