Lead Absorption of Cosmic Rays at Different Altitudes near Magnetic Latitude 22° N.

Results of the dutch cosmic ray expediti

Results of the dutch cosmic ray expedition 1933 VII. Positive and negative primaries. North-south asymmetry. difference of decrease in lead at different latitudes

✍ J. Clay 📂 Article 📅 1935 🏛 Elsevier Science ⚖ 387 KB

From the combination of Latitude effect and East--West asymmetry it is possible to conclude whether there are positive and negative primaries. Our observations give a ratio of the number of positives to negatives of about 2 to 1, between two given energy limits. A north excess of 4% is found in Ban