TOTAL PROTON-PROTON CROSS-SECTION AT S1/2=30 TEV
TOTAL PROTON-PROTON CROSS-SECTION AT S1/2=30 TEV
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DOI：
10.1103/physrevlett.52.1380
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发表时间：
1984-01-01
影响因子：
8.6
通讯作者：
STECK, D
中科院分区：
文献类型：
--
作者：
BALTRUSAITIS, RM;CASSIDAY, GL;STECK, D
我们测量了质子-空气非弹性截面在s1 2= 30 TeV通过观察广泛的空气簇射极大值的分布作为大气深度的函数。这个分布有一个指数尾，其斜率为λ= 72±9 g cm− 2，这意味着σ p− air inel= 530±66 mb。利用Glauber理论并假定弹性散射斜率参数B与σ pp tot成正比，我们推断出σ pp tot= 120±15 mb，它位于低能时测得的总pp截面的log s和log 2 s外推值之间。
We have measured the proton-air inelastic cross section at s 1 2= 30 TeV by observing the distribution of extensive-air-shower maxima as a function of atmospheric depth. This distribution has an exponential tail whose slope is λ= 72±9 g cm− 2 which implies that σ p− air inel= 530±66 mb. Using Glauber theory and assuming that the elastic-scattering slope parameter b is proportional to σ pp tot, we infer a value of σ pp tot= 120±15 mb which lies between a log s and a log 2 s extrapolation of the total pp cross section as measured at lower energies.