Signature of relic heavy stable neutrinos in underground experiments

被引：27

作者：

Fargion, D

Khlopov, MY

Konoplich, RV

Mignani, R

机构：

[1] Univ Rome La Sapienza, Dipartimento Fis, Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy

[2] Technion Israel Inst Technol, EE Fac, Haifa, Israel

[3] Inst Appl Math, Moscow 125047, Russia

[4] Moscow Engn Phys Inst, Moscow 115409, Russia

[5] Univ La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[6] Cosmion Ctr Cosmoparticle Phys, Moscow 125047, Russia

[7] MV Keldysh Appl Math Inst, Moscow 125047, Russia

[8] Univ Roma Tre, Dipartimento Fis E Amaldi, I-00146 Rome, Italy

[9] Univ La Sapienza, Ist Nazl Fis Nucl, Sez Roma 1, Dipartimento Fis, I-00185 Rome, Italy

来源：

JETP LETTERS | 1998年 / 68卷 / 09期

关键词：

D O I：

10.1134/1.567929

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Considering heavy stable neutrinos of the 4th generation, we calculate the relic density of such neutrinos in the Universe. Taking into account the condensation of heavy neutrinos in the Galaxy and applying the results of calculations to experimental data from underground experiments on search for WIMPs in elastic neutral current scattering on nuclei, we find an exclusion region of neutrino mass 60 GeV<m <290 GeV. The bounds obtained from the present underground experiments, while confirming the previous bounds derived from analysis of cosmic ray spectra, are more reliable, We also discuss the first indication of elastic scattering induced by WIMPs in the DAMA experiment, finding a very narrow window of neutrino mass 45 GeV<m<50 GeV compatible with the possible signal rate in the detector. (C) 1998 American Institute of Physics. [S0021-3640(99)00121-2].

引用

页码：685 / 690

页数：6

共 10 条

[1] Exploring the supersymmetric parameter space by direct search for WIMPs [J].

Bottino, A ;

Donato, F ;

Mignola, G ;

Scopel, S ;

Belli, P ;

Incicchitti, A .

PHYSICS LETTERS B, 1997, 402 (1-2) :113-121

[2]

CALDWELL DO, 1995, PARTICLE NUCL ASTROP, P38

[3] BIG-BANG NUCLEOSYNTHESIS AND THE BARYON DENSITY OF THE UNIVERSE [J].

COPI, CJ ;

SCHRAMM, DN ;

TURNER, MS .

SCIENCE, 1995, 267 (5195) :192-199

[4] Possibility of searching for heavy neutrinos at accelerators [J].

Fargion, D ;

Khlopov, MY ;

Konoplich, RV ;

Mignani, R .

PHYSICAL REVIEW D, 1996, 54 (07) :4684-4686

[5] BOUNDS ON VERY HEAVY RELIC NEUTRINOS BY THEIR ANNIHILATION IN THE GALACTIC HALO [J].

FARGION, D ;

KHLOPOV, MY ;

KONOPLICH, RV ;

MIGNANI, R .

PHYSICAL REVIEW D, 1995, 52 (04) :1828-1836

[6]

GOLUBKOV YA, 1997, DESY057

[7] DETECTABILITY OF CERTAIN DARK-MATTER CANDIDATES [J].

GOODMAN, MW ;

WITTEN, E .

PHYSICAL REVIEW D, 1985, 31 (12) :3059-3063

[8] POSITRON LINE RADIATION AS A SIGNATURE OF PARTICLE DARK MATTER IN THE HALO [J].

TURNER, MS ;

WILCZEK, F .

PHYSICAL REVIEW D, 1990, 42 (04) :1001-1007

[9]

ZELDOVICH YB, 1980, SOV J NUCL PHYS+, V31, P664

[10]

[No title captured]

← 1 →