Natural candidates for superheavy dark matter in string and M theory

被引：121

作者：

Benakli, K ^{[1
]}

Ellis, J

Nanopoulos, DV

机构：

[1] Texas A&M Univ, Ctr Theoret Phys, Dept Phys, College Stn, TX 77843 USA

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

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

[4] Acad Athens, Chair Theoret Phys, GR-10679 Athens, Greece

来源：

PHYSICAL REVIEW D | 1999年 / 59卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.59.047301

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We reconsider superheavy dark matter candidates in string and M theory, in view of the possibility that inflation might generate superheavy particles with an abundance close to that required for a near-critical Universe. We argue that cryptons-stable or metastable bound states of matter in the hidden sector-are favored over other possible candidates in string or M theory, such as the Kaluza-Klein states associated with extra dimensions. We exhibit a specific string model that predicts cryptons as hidden-sector bound states weighing similar to 10(12) GeV, and discuss their astrophysical observability. [S0556-2821(98)04824-3].

引用

页数：4

共 32 条

[1] STRING GUTS [J].

ALDAZABAL, G ;

FONT, A ;

IBANEZ, LE ;

URANGA, AM .

NUCLEAR PHYSICS B, 1995, 452 (1-2) :3-44

[2] N=2 heterotic superstring and its dual theory in five dimensions [J].

Antoniadis, I ;

Ferrara, S ;

Taylor, TR .

NUCLEAR PHYSICS B, 1996, 460 (03) :489-505

[3] THE FLIPPED SU(5)XU(1) STRING MODEL REVAMPED [J].

ANTONIADIS, I ;

ELLIS, J ;

HAGELIN, JS ;

NANOPOULOS, DV .

PHYSICS LETTERS B, 1989, 231 (1-2) :65-74

[4] FRACTIONALLY CHARGED-PARTICLES AND SUPERSYMMETRY BREAKING IN 4D STRINGS [J].

ANTONIADIS, I ;

BENAKLI, K .

PHYSICS LETTERS B, 1992, 295 (3-4) :219-224

[5]

ANTONIADIS I, 1997, PHYS LETT B, V407, pE449

[6] REMARKS ON WILSON LINES, MODULAR INVARIANCE AND POSSIBLE STRING RELICS IN CALABI-YAU COMPACTIFICATIONS [J].

ATHANASIU, GG ;

ATICK, JJ ;

DINE, M ;

FISCHLER, W .

PHYSICS LETTERS B, 1988, 214 (01) :55-62

[7] Natural gauge-coupling unification at the string scale [J].

Bachas, C ;

Fabre, C ;

Yanagida, T .

PHYSICS LETTERS B, 1996, 370 (1-2) :49-51

[8] FRACTIONAL CHARGED COLOR SINGLET-STATES AND STRING UNIFICATION [J].

BAILIN, D ;

LOVE, A .

MODERN PHYSICS LETTERS A, 1992, 7 (16) :1485-1495

[9] Ultrahigh energy cosmic rays without Greisen-Zatsepin-Kuzmin cutoff [J].

Berezinsky, V ;

Kachelriess, M ;

Vilenkin, A .

PHYSICAL REVIEW LETTERS, 1997, 79 (22) :4302-4305

[10] DETECTION OF A COSMIC-RAY WITH MEASURED ENERGY WELL BEYOND THE EXPECTED SPECTRAL CUTOFF DUE TO COSMIC MICROWAVE-RADIATION [J].

BIRD, DJ ;

CORBATO, SC ;

DAI, HY ;

ELBERT, JW ;

GREEN, KD ;

HUANG, MA ;

KIEDA, DB ;

KO, S ;

LARSEN, CG ;

LOH, EC ;

LUO, MZ ;

SALAMON, MH ;

SMITH, JD ;

SOKOLSKY, P ;

SOMMERS, P ;

TANG, KK ;

THOMAS, SB .

ASTROPHYSICAL JOURNAL, 1995, 441 (01) :144-150

← 1 2 3 4 →