Cosmic ray interaction event generator SIBYLL 2.1

被引：438

作者：

Ahn, Eun-Joo ^{[1
,2
]}

Engel, Ralph ^{[3
]}

Gaisser, Thomas K. ^{[2
]}

Lipari, Paolo ^{[4
]}

Stanev, Todor ^{[2
]}

机构：

[1] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA

[2] Univ Delaware, Bartol Res Inst, Dept Phys & Astron, Newark, DE 19716 USA

[3] Forschungszentrum Karlsruhe, Inst Kernphys, D-76021 Karlsruhe, Germany

[4] Univ Rome 1, Dipartimento Fis, Ist Nazl Fis Nucl, Sez Roma La Sapienza, I-00185 Rome, Italy

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 09期

关键词：

PARTICLE MULTIPLICITY DISTRIBUTIONS; DYNAMICAL PARTON DISTRIBUTIONS; CHARGED-PARTICLES; PSEUDORAPIDITY DISTRIBUTIONS; DIFFRACTION DISSOCIATION; INCLUSIVE PRODUCTION; NUCLEUS COLLISIONS; PP INTERACTIONS; LOW Q(2); ROOT-S;

D O I：

10.1103/PhysRevD.80.094003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cosmic ray interaction event generator Sibyll is widely used in extensive air shower simulations. We describe in detail the properties of Sibyll 2.1 and the differences with the original version 1.7. The major structural improvements are the possibility to have multiple soft interactions, introduction of new parton density functions, and an improved treatment of diffraction. Sibyll 2.1 gives better agreement with fixed target and collider data, especially for the inelastic cross sections and multiplicities of secondary particles. Shortcomings and suggestions for future improvements are also discussed.

引用

页数：17

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