Possibility of Hubble Constant and Background Infrared Radiation Measurements With Yangbajing RPC Carpet Experiment

Jia Huanyu; Wang Shunjin; Tan Youheng

Chinese Physics C> 1999, Vol. 23> Issue(3) : 217-222

Possibility of Hubble Constant and Background Infrared Radiation Measurements With Yangbajing RPC Carpet Experiment

Institute of Modern Physics and Department of Applied Phygics, South West Jiaotong Univ ersity,Chengdu 6100312 The Laboratory of Cosmic Ray and High-Energy Astrophysics, Beijing 1000393 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

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Abstract：
Considering the absorption of extragalactic high energy gamma rays by cosmic background photons, the possibility of measuring Hubble Constant and background infrared radiation with Yangbajing RPC carpet experiment is presented.The conclusion is that in one to three years experiment the Hubble Consent and background infrared radiation density can be determined with good precision.

References

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Stecker F W et aL APJ, 1992, 390:L49–L52 2 Stecker F W et aL APJ, 1993, 415:L71–L73 3 Salomon A et al. APJ, 1994, 423:L1–L4 4 Amenomon M et al. Phys. Rev Lett, 1992, 69:2468–2471 5 Amenomori M et al. APJ, 1993, 415:L147–L150 6 Amenomori M et al APJ, 1996, 461:408–414 7 Lang K R. Astrophysical Formulae. New York: Spring–Verlag Berlin Heidelberg, 1980. 450 8 Stecker F W. Cosmic Gamma Rays. Bolltimore: Mono Book Co, 1971

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Jia Huanyu, Wang Shunjin and Tan Youheng. Possibility of Hubble Constant and Background Infrared Radiation Measurements With Yangbajing RPC Carpet Experiment[J]. Chinese Physics C, 1999, 23(3): 217-222.

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Received: 1998-02-12
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Possibility of Hubble Constant and Background Infrared Radiation Measurements With Yangbajing RPC Carpet Experiment

Corresponding author: Jia Huanyu,

Institute of Modern Physics and Department of Applied Phygics, South West Jiaotong Univ ersity,Chengdu 6100312 The Laboratory of Cosmic Ray and High-Energy Astrophysics, Beijing 1000393 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Received Date: 1998-02-12
Accepted Date: 1900-01-01
Available Online: 1999-03-05

Abstract: Considering the absorption of extragalactic high energy gamma rays by cosmic background photons, the possibility of measuring Hubble Constant and background infrared radiation with Yangbajing RPC carpet experiment is presented.The conclusion is that in one to three years experiment the Hubble Consent and background infrared radiation density can be determined with good precision.