THE PHOTOPRODUCTION THRESHOLD - IMPLICATIONS FOR AIR SHOWERS

被引：9

作者：

GAISSER, TK ^{[1
]}

HALZEN, F ^{[1
]}

STANEV, T ^{[1
]}

ZAS, E ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

来源：

PHYSICS LETTERS B | 1990年 / 243卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(90)91411-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The high energy behavior of photoproduction is controlled by the hadronic structure function of the photon and it is possible that the cross section may increase rapidly after a threshold energy beyond which the gluon content of the photon is fully developed. One consequence would be an increase in the muon content of air showers generated by ∼ PeV photons. Although one can qualitatively change the muon content of photon showers by assuming a generous estimate of the magnitude of enhanced photoproduction, we still find that only a small fraction of photon showers look like normal hadronic showers, contrary to indications from some recent air shower experiments. © 1990.

引用

页码：444 / 450

页数：7

共 19 条

[1]

AGLIETTA M, 1990, 21ST P INT COSM RAY, V9, P388

[2] OBSERVATION OF A TIME MODULATED MUON FLUX IN THE DIRECTION OF CYGNUS-X-3 [J].

BATTISTONI, G ;

BELLOTTI, E ;

BLOISE, C ;

BOLOGNA, G ;

CAMPANA, P ;

CASTAGNOLI, C ;

CASTELLINA, A ;

CHIARELLA, V ;

CIOCIO, A ;

CUNDY, D ;

DETTORREPIAZZOLI, B ;

FIORINI, E ;

GALEOTTI, P ;

IAROCCI, E ;

LIGUORI, C ;

MANNOCCHI, G ;

MURTAS, G ;

NEGRI, P ;

NICOLETTI, G ;

PICCHI, P ;

PRICE, M ;

PULLIA, A ;

RAGAZZI, S ;

ROLLIER, M ;

SAAVEDRA, O ;

SATTA, L ;

SERRI, P ;

VERNETTO, S ;

ZANOTTI, L .

PHYSICS LETTERS B, 1985, 155 (5-6) :465-467

[3] THEORETICAL IMPLICATIONS OF FERMILAB TEVATRON TOTAL AND ELASTIC DIFFERENTIAL-CROSS-SECTION MEASUREMENTS [J].

BLOCK, M ;

FLETCHER, R ;

HALZEN, F ;

MARGOLIS, B ;

VALIN, P .

PHYSICAL REVIEW D, 1990, 41 (03) :978-981

[4]

BRAUN O, 1965, 9TH P INT COSM RAY C, V2, P712

[5] ULTRAHIGH-ENERGY PULSED EMISSION FROM HERCULES-X-1 WITH ANOMALOUS AIR-SHOWER MUON PRODUCTION [J].

DINGUS, BL ;

ALEXANDREAS, DE ;

ALLEN, RC ;

BURMAN, RL ;

BUTTERFIELD, KB ;

CADY, R ;

CHANG, CY ;

ELLSWORTH, RW ;

GOODMAN, JA ;

GUPTA, SK ;

HAINES, TJ ;

KRAKAUER, DA ;

LLOYDEVANS, J ;

NAGLE, DE ;

POTTER, M ;

SANDBERG, VD ;

TALAGA, RL ;

WILKINSON, CA ;

YODH, GB .

PHYSICAL REVIEW LETTERS, 1988, 61 (17) :1906-1909

[6] HADRON STRUCTURE OF HIGH-ENERGY PHOTONS [J].

DREES, M ;

HALZEN, F .

PHYSICAL REVIEW LETTERS, 1988, 61 (03) :275-277

[7] THE MUON COMPONENT OF GAMMA-RAY-INITIATED AIR SHOWERS [J].

EDWARDS, PG ;

PROTHEROE, RJ ;

RAWINSKI, E .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1985, 11 (06) :L101-L107

[8] GAMMA-RAYS AND NEUTRINOS AS CLUES TO THE ORIGIN OF HIGH-ENERGY COSMIC-RAYS [J].

GAISSER, TK .

SCIENCE, 1990, 247 (4946) :1049-1056

[9] PARTICLE PHYSICS WITH COSMIC ACCELERATORS [J].

HALZEN, F ;

HIKASA, K ;

STANEV, T .

PHYSICAL REVIEW D, 1986, 34 (07) :2061-2070

[10]

JOHNS K, 1990, 21ST P INT COSM RAY, V9, P402

← 1 2 →