publication . Preprint . 2011

Extremely high energy cosmic ray as the probe of new physics

Chen, Shao-Xia; Hu, Rong;
Open Access English
  • Published: 23 Mar 2011
Abstract
We explore the influence of new physics on extremely high energy cosmic ray (EXCER) particles. In particular, we devote our mind to one example of new physics, unparticle stuff, on one specific process that EXECRs participate in, photopion production of the EXECR nucleon with 2.7K cosmic microwave background radiation (CMBR). Through computing the differential cross section of virtual exchange of unparticle in the $p+\gamma\to p+ \pi^0$ process, we acquire the general consequence of new physics on the EXECR propagation. It is astonishing but reasonable that due to the lowness of interaction energy $\sqrt{s}$, the new physics will play a nearly negligible role in...
Subjects
arXiv: Astrophysics::High Energy Astrophysical Phenomena
free text keywords: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology
Download from
24 references, page 1 of 2

[2] S. Coleman and S. L. Glashow, Phys. Lett. B 405, (1997) 249; S. Coleman and S. L. Glashow, Phys. Rev. D 59, (1999) 116008; F. W. Stecker and S. Glashow, Astropart. Phys. 16, (2001) 97; N. Gupta, Phys. Lett. B 580, (2004) 103; G. Amelino-Camelia, Nature 408, (2000) 661.

[3] K. Greisen, Phys. Rev. Lett. 16, (1966) 748.

[4] G. T. Zatsepin and V. A. Kuzmin, JETP Lett. 4, (1966) 78.

[5] M. Takeda et al., Astropart. Phys. 19, (2003) 447.

[6] R. U. Abbasi et al., Phys. Rev. Lett. 100, (2008) 101101.

[7] J. Abraham et al., Phys. Rev. Lett. 101, (2008) 061101; ibid, Phys. Lett. B 685, (2010) 239.

[8] R. U. Abbasi et al., Phys. Rev. Lett. 104, (2010) 091101.

[9] J. Abraham et al., Phys. Rev. Lett. 104, (2010) 091101.

[10] J. Abraham et al., Science 318, (2007) 938.

[11] R. U. Abbasi et al., Astropart. Phys. 30, (2008) 175.

[12] J. Abraham et al., Proc. 31st Int. Cosmic Ray Conf., (2009).

[13] E. P. Verlinde, arXiv: 1001.0785.

[14] H. Georgi, Phys. Rev. Lett. 98, (2007) 221601.

[15] F. W. Stecker and S. T. Scully, New J. Phys. 11, (2009) 085003.

[16] K. Cheung, W. Y. Keung and T. C. Yuan, Phys. Rev. Lett. 99, (2007) 051803; ibid, Phys. Rev. D 76, (2007) 055003.

24 references, page 1 of 2
Powered by OpenAIRE Open Research Graph
Any information missing or wrong?Report an Issue