Measurement of the proton-air cross section with Telescope Array's Middle Drum detector and surface array in hybrid mode

被引：46

作者：

Abbasi, R. U. ^{[1
,2
]}

Abe, M. ^{[3
]}

Abu-Zayyad, T. ^{[1
,2
]}

Allen, M. ^{[1
,2
]}

Azuma, R. ^{[4
]}

Barcikowski, E. ^{[1
,2
]}

Belz, J. W. ^{[1
,2
]}

Bergman, D. R. ^{[1
,2
]}

Blake, S. A. ^{[1
,2
]}

Cady, R. ^{[1
,2
]}

Chae, M. J. ^{[5
,6
]}

Cheon, B. G. ^{[7
,8
]}

Chiba, J. ^{[9
]}

Chikawa, M. ^{[10
]}

Cho, W. R. ^{[11
]}

Fujii, T. ^{[12
]}

Fukushima, M. ^{[12
,13
]}

Goto, T. ^{[14
]}

Hanlon, W. ^{[1
,2
]}

Hayashi, Y. ^{[14
]}

Hayashida, N. ^{[15
]}

Hibino, K. ^{[15
]}

Honda, K. ^{[16
]}

Ikeda, D. ^{[12
]}

Inoue, N. ^{[3
]}

Ishii, T. ^{[16
]}

Ishimori, R. ^{[4
]}

Ito, H. ^{[17
]}

Ivanov, D. ^{[1
,2
]}

Jui, C. C. H. ^{[1
,2
]}

Kadota, K. ^{[18
]}

Kakimoto, F. ^{[4
]}

Kalashev, O. ^{[19
]}

Kasahara, K. ^{[20
]}

Kawai, H. ^{[21
]}

Kawakami, S. ^{[14
]}

Kawana, S. ^{[3
]}

Kawata, K. ^{[12
]}

Kido, E. ^{[12
]}

Kim, H. B. ^{[7
,8
]}

Kim, J. H. ^{[1
,2
,22
]}

Kitamura, S. ^{[4
]}

Kitamura, Y. ^{[4
]}

Kuzmin, V. ^{[19
]}

Kwon, Y. J. ^{[11
]}

Lan, J. ^{[1
,2
]}

Lim, S. I. ^{[5
,6
]}

Lundquist, J. P. ^{[1
,2
]}

Machida, K. ^{[16
]}

Martens, K. ^{[13
]}

机构：

[1] Univ Utah, High Energy Astrophys Inst, Salt Lake City, UT 84112 USA

[2] Univ Utah, Dept Phys & Astron, Salt Lake City, UT USA

[3] Saitama Univ, Grad Sch Sci & Engn, Saitama, Saitama, Japan

[4] Tokyo Inst Technol, Grad Sch Sci & Engn, Meguro Ku, Tokyo 152, Japan

[5] Ewha Womans Univ, Dept Phys, Seoul, South Korea

[6] Ewha Womans Univ, Inst Early Universe, Seoul, South Korea

[7] Hanyang Univ, Dept Phys, Seoul 133791, South Korea

[8] Hanyang Univ, Res Inst Nat Sci, Seoul 133791, South Korea

[9] Tokyo Univ Sci, Dept Phys, Noda, Chiba 278, Japan

[10] Kinki Univ, Dept Phys, Higashi Osaka, Osaka, Japan

[11] Yonsei Univ, Dept Phys, Seoul 120749, South Korea

[12] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba, Japan

[13] Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba, Japan

[14] Osaka City Univ, Grad Sch Sci, Osaka, Osaka, Japan

[15] Kanagawa Univ, Fac Engn, Yokohama, Kanagawa, Japan

[16] Univ Yamanashi, Interdisciplinary Grad Sch Med & Engn, Kofu, Yamanashi, Japan

[17] RIKEN, Astrophys Big Bang Lab, Wako, Saitama, Japan

[18] Tokyo City Univ, Dept Phys, Setagaya Ku, Tokyo, Japan

[19] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[20] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo, Japan

[21] Chiba Univ, Dept Phys, Chiba, Chiba, Japan

[22] UNIST Gil, Ulsan Natl Inst Sci & Technol, Sch Nat Sci, Ulsan, South Korea

[23] Natl Lab High Energy Phys, KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 305, Japan

[24] Kochi Univ, Fac Sci, Kochi, Kochi, Japan

[25] Ritsumeikan Univ, Dept Phys Sci, Kusatsu, Shiga, Japan

[26] Kyushu Univ, Dept Phys, Fukuoka, Fukuoka, Japan

[27] Chubu Univ, Engn Sci Lab, Kasugai, Aichi 487, Japan

[28] Sungkyunkwan Univ, Dept Phys, Suwon, South Korea

[29] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia

[30] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ USA

[31] Univ Tokyo, Res Inst, Bunkyo Ku, Tokyo, Japan

[32] Hiroshima City Univ, Grad Sch Informat Sci, Hiroshima, Hiroshima, Japan

[33] Univ Libre Bruxelles, Serv Phys Theor, Brussels, Belgium

[34] Shinshu Univ, Dept Comp Sci & Engn, Nagano, Nagano, Japan

[35] Natl Inst Radiol Sci, Chiba, Chiba, Japan

[36] Ehime Univ, Dept Phys, Matsuyama, Ehime, Japan

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 03期

基金：

日本学术振兴会; 美国国家科学基金会; 新加坡国家研究基金会;

关键词：

HADRON FLUX; UPPER LIMIT; ENERGY; SCATTERING; DEPTH;

D O I：

10.1103/PhysRevD.92.032007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work we are reporting on the measurement of the proton-air inelastic cross section sigma(inel)(p-air) using the Telescope Array detector. Based on the measurement of the sigma(inel)(p-air), the proton-proton cross section sigma(p-p) value is also determined at root s = 95(-8)(+5) TeV. Detecting cosmic ray events at ultrahigh energies with the Telescope Array enables us to study this fundamental parameter that we are otherwise unable to access with particle accelerators. The data used in this report are the hybrid events observed by the Middle Drum fluorescence detector together with the surface array detector collected over five years. The value of the sigma(inel)(p-air) is found to be equal to 567.0 +/- 70.5[Stat](-25)(+29)[Sys] mb. The total proton-proton cross section is subsequently inferred from Glauber formalism and the Block, Halzen and Stanev QCD inspired fit and is found to be equal to 170(-44)(+48)[Stat](-17)(+19)[Sys] mb.

引用

页数：9

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