Stellar evolution and large extra dimensions

被引：26

作者：

Cassisi, S

Castellani, V

Degl'Innocenti, S

Fiorentini, G

Ricci, B

机构：

[1] Osservatorio Astron Collurania, I-64100 Teramo, Italy

[2] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy

[3] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy

[4] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

[5] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

来源：

PHYSICS LETTERS B | 2000年 / 481卷 / 2-4期

关键词：

D O I：

10.1016/S0370-2693(00)00442-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss in detail the information on large extra dimensions which can be derived in the framework of stellar evolution theory and observation. The main effect of large extra dimensions arises from the production of the Kaluza-Klein (KK) excitations of the graviton. The KK-graviton and matter interactions are of gravitational strength, so the KK states never become thermalized and always freely escape. In this paper we first pay attention to the sun. Production of KK gravitons is incompatible with helioseismic constraints unless the 4 + n dimensional Planck mass M-s exceeds 300 GeV/c(2). Next we show that stellar structures in their advanced phase of H burning evolution put much more severe constraints, M-s > 3-4 TeV/c(2), improving on current laboratory lower limits. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：323 / 332

页数：10