Curvature oscillations in modified gravity and high energy cosmic rays

The European Physical Journal C

L. Reverberi¹  E. V. Arbuzova²  A. D. Dolgov³ 

[1]Dipartimento di Fisica, Università degli Studi di Ferrara, Polo Scientifico e Tecnologico—Edificio C, via Saragat 1, 44122, Ferrara, Italy

[2]Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, Polo Scientifico e Tecnologico—Edificio C, via Saragat 1, 44122, Ferrara, Italy

[3]Novosibirsk State University, 630090, Novosibirsk, Russia

[4]Department of Higher Mathematics, University “Dubna”, 141980, Dubna, Russia

[5]Novosibirsk State University, 630090, Novosibirsk, Russia

[6]ITEP, Bol. Cheremushkinsaya ul., 25, 113259, Moscow, Russia

[7]Dipartimento di Fisica, Università degli Studi di Ferrara, Polo Scientifico e Tecnologico—Edificio C, via Saragat 1, 44122, Ferrara, Italy

[8]Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, Polo Scientifico e Tecnologico—Edificio C, via Saragat 1, 44122, Ferrara, Italy

关键词: Particle Production;    Normal Gravity;    Small Oscillation;    Astrophysical System;    Curvature Oscillation;   

DOI  :  10.1140/epjc/s10052-012-2247-z

来源: Springer

【 摘 要 】

It is shown that F(R)-modified gravitational theories lead to curvature oscillations in astrophysical systems with rising energy density. The frequency and the amplitude of such oscillations could be very high and would lead to noticeable production of energetic cosmic ray particles.

【 授权许可】

CC BY