Observation of the cosmic ray moon shadowing effect with the argo-ybj experiment
文献类型：期刊论文
| 作者 | Bartoli, B.1,2; Bernardini, P.3,4; Bi, X. J.5; Bleve, C.3,4; Bolognino, I.6,7; Branchini, P.8; Budano, A.8; Melcarne, A. K. Calabrese9; Camarri, P.10,11; Cao, Z.5 |
| 刊名 | Physical review d
 |
| 出版日期 | 2011-07-21 |
| 卷号 | 84期号:2页码:15 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/physrevd.84.022003 |
| 通讯作者 | Bartoli, b.() |
| 英文摘要 | Cosmic rays are hampered by the moon and a deficit in its direction is expected (the so-called moon shadow). the moon shadow is an important tool to determine the performance of an air shower array. indeed, the westward displacement of the shadow center, due to the bending effect of the geomagnetic field on the propagation of cosmic rays, allows the setting of the absolute rigidity scale of the primary particles inducing the showers recorded by the detector. in addition, the shape of the shadow permits to determine the detector point spread function, while the position of the deficit at high energies allows the evaluation of its absolute pointing accuracy. in this paper we present the observation of the cosmic ray moon shadowing effect carried out by the argo-ybj experiment in the multi-tev energy region with high statistical significance (55 standard deviations). by means of an accurate monte carlo simulation of the cosmic rays propagation in the earth-moon system, we have studied separately the effect of the geomagnetic field and of the detector point spread function on the observed shadow. the angular resolution as a function of the particle multiplicity and the pointing accuracy have been obtained. the primary energy of detected showers has been estimated by measuring the westward displacement as a function of the particle multiplicity, thus calibrating the relation between shower size and cosmic ray energy. the stability of the detector on a monthly basis has been checked by monitoring the position and the deficit of the moon shadow. finally, we have studied with high statistical accuracy the shadowing effect in the day/''night'' time looking for possible effect induced by the solar wind. |
| WOS关键词 | AIR-SHOWER ARRAY ; GEOMAGNETIC-FIELD ; MAGNETIC-FIELD ; TEV ENERGIES ; DETECTOR ; SUN ; ANTIPROTONS ; SIMULATION ; SEARCH ; RPCS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000292971400001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176196 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Bartoli, B. |
| 作者单位 | 1.Univ Naples Federico 2, Dipartimento Fis, I-80126 Naples, Italy 2.Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy 3.Univ Salento, Dipartimento Fis, I-73100 Lecce, Italy 4.Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy 5.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 6.Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy 7.Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy 8.Ist Nazl Fis Nucl, Sez Roma Tre, I-00146 Rome, Italy 9.Ist Nazl Fis Nucl CNAF, I-40127 Bologna, Italy 10.Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy |
| 推荐引用方式 GB/T 7714 | Bartoli, B.,Bernardini, P.,Bi, X. J.,et al. Observation of the cosmic ray moon shadowing effect with the argo-ybj experiment[J]. Physical review d,2011,84(2):15. |
| APA | Bartoli, B..,Bernardini, P..,Bi, X. J..,Bleve, C..,Bolognino, I..,...&Zizzi, G..(2011).Observation of the cosmic ray moon shadowing effect with the argo-ybj experiment.Physical review d,84(2),15. |
| MLA | Bartoli, B.,et al."Observation of the cosmic ray moon shadowing effect with the argo-ybj experiment".Physical review d 84.2(2011):15. |
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