✦ LIBER ✦
Results of the dutch cosmic ray expedition 1933 VII. Positive and negative primaries. North-south asymmetry. difference of decrease in lead at different latitudes
✍ Scribed by J. Clay
- Publisher
- Elsevier Science
- Year
- 1935
- Weight
- 387 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0031-8914
No coin nor oath required. For personal study only.
✦ Synopsis
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 Bandoeng for 20 ° zenith distance.
The decrease of the penetrative part of the corpuscles in lead at Bandoeng (18 ° M.L.) is much smaller than in Amsterdam. (53 ° M.L.). In Amsterdam W i e r s m a and I find the same decrease as was found by R o s s i .