MEASUREMENTS OF PHOTON TOTAL CROSS-SECTION ON PROTONS FROM 18 TO 185 GEV

被引：103

作者：

CALDWELL, DO

CUMALAT, JP

EISNER, AM

LU, A

MORRISON, RJ

MURPHY, FV

YELLIN, SJ

DAVIS, PJ

EGLOFF, RM

FRANKLIN, MEB

LUSTE, GJ

MARTIN, JF

PRENTICE, JD

NASH, T

机构：

[1] UNIV TORONTO,TORONTO M5S 1A7,ONTARIO,CANADA

[2] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

来源：

PHYSICAL REVIEW LETTERS | 1978年 / 40卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.40.1222

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The photon total cross section on protons has been measured with high precision in the Fermilab tagged-photon beam for photon energies from 18 to 185 GeV. The cross section decreases to a broad minimum near 40 GeV, and then rises by about 4 μb over the remainder of the range. A ρ+ω+ vector-dominance model (normalized to low-energy data) falls below the high-energy results by 2 to 6 μb, suggesting a contribution from charm-anticharm states. © 1978 The American Physical Society.

引用

页码：1222 / 1225

页数：4

共 19 条

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