Upper limit on the prompt muon flux derived from the LVD underground experiment -: art. no. 112001

被引：28

作者：

Aglietta, M ^{[1
]}

Alpat, B

Alyea, ED

Antonioli, P

Badino, G

Bari, G

Basile, M

Berezinsky, VS

Bersani, F

Bertaina, M

Bertoni, R

Bonoli, G

Bosco, A

Bruni, G

Romeo, GC

Castagnoli, C

Castellina, A

Chiavassa, A

Chinellato, JA

Cifarelli, L

Cindolo, F

Conforto, G

Contin, A

Dadykin, VL

De Silva, A

Deutsch, M

Dominici, P

Dos Santos, LG

Emaldi, L

Enikeev, RI

Fabbri, FL

Fulgione, W

Galeotti, P

Ghetti, C

Ghia, P

Giusti, P

Granella, R

Grianti, F

Güidi, G

Hafen, ES

Haridas, P

Iacobucci, G

Inoue, N

Kemp, E

Khalchukov, FF

Korolkova, EV

Korchaguin, PV

Korchaguin, VB

Kudryavtsev, VA

Lau, K

机构：

[1] Univ Turin, CNR, Inst Cosmogeophys, I-10100 Turin, Italy

[2] Univ Bologna, I-40126 Bologna, Italy

[3] Ist Nazl Fis Nucl Bologna, I-40126 Bologna, Italy

[4] Brown Univ, Providence, RI 02912 USA

[5] Univ Campinas, BR-13081 Campinas, Brazil

[6] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[7] Ist Nazl Fis Nucl, LNGS, I-67010 Assergi, Italy

[8] Univ Houston, Houston, TX 77004 USA

[9] Indiana Univ, Bloomington, IN 47405 USA

[10] MIT, Cambridge, MA 02139 USA

[11] Northeastern Univ, Boston, MA 02115 USA

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

[13] Okayama Univ, Okayama 70085301, Japan

[14] Okayama Univ Sci, Okayama 70085301, Japan

[15] Univ Perugia, I-06100 Perugia, Italy

[16] Ist Nazl Fis Nucl, I-06100 Perugia, Italy

[17] Saitama Univ, Urawa, Saitama 3388570, Japan

[18] Ashikaga Inst Technol, Ashikaga, Japan

[19] Ist Nazl Fis Nucl, I-10100 Turin, Italy

[20] Univ Urbino, I-61029 Urbino, Italy

[21] Ist Nazl Fis Nucl, I-61029 Urbino, Italy

来源：

PHYSICAL REVIEW D | 1999年 / 60卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.60.112001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the analysis of the muon events with all muon multiplicities collected during 21804 h of operation of the first LVD tower. The measured depth-angular distribution of muon intensities has been used to obtain the normalization factor A the power index gamma of the primary all-nucleon spectrum, and the ratio R-c of the prompt muon flux to that of pi mesons-the main parameters which determine the spectrum of cosmic ray muons at the sea level. The values of gamma = 2.77 +/- 0.05 (68% C.L.) and R-c < 2.0 X 10(-3) (95% C.L.) have been obtained. The upper limit to the prompt muon flux favors the models of charm production based on QGSM and the dual parton model. [S0556-2821(99)03917-X].

引用

页数：7

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