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Previous and New difficulties in basic Particles

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Additional info for Old and New Problems in Elementary Particles. A volume dedicated to Gilberto Bernardini in his sixtieth birthday

Sample text

5 G e V to infinity. F r o m such a value, by making use of the integral spec› t r u m (31), one obtains (34b) ( 9 5 % ) ~ 3 • 1 0 - " (^f’" 1 . 8• ˇ" 4 . 3 5• ˇ" 14 6 . 2 5• ˇ" 17 ˇ 13 (a) For experiment s of type C-II I see Table II . (34 ) ( 9 5 % ) (*) ( c m- 2 s- 1) cm’, which has been used for c o m p u t i n g t h e data given in T a b l e I. 16 31 On the Dirac magnetic poles of type C - I and C - I I ( ) . 2 . 6-10"37 1. 7 . 6-10"39 1 . 996/AT if no single monopol e is observe d [46]. Unfortunately, no sufficient details are given by t h e Russian authors about t h e derivation of t h e relation (34a) t o allow a com› parison of t h e data used by t h e m with those adopted by others.

Therefore o n e can conclude that by adopting the classical point of view a n d t h e convention qm=0 for t h e electron, the u p p e r limits for t h e magnetic charges of all usual particles are so small t o justify t h e usual convention of taking qm=0 for all of t h e m . L e t u s go back for a m o m e n t t o t h e linear transformation ( 4 4) specifying a few possible values of . I t is immediately seen that this transformation reduces for =0 t o t h e identity a n d for 9 9 = 1 8 0 t o a change of sign of all quantities.

Finally if a globule remains attached t o a relatively heavy object, for example, a snow flake, t h e gravitational force will be not negligible any m o r e . T h e snow will also drift with wind and therefore a uniform spreading o u t of t h e monopoles should take place over t h e pole area m e n t i o n e d above. 6 • 10 4 s) over t h e entire E a r t h (^4=5 - 1 0 1 8 c m 2 ) times a factor . ~ 4 • 1 0- 7 . 7 • 10 1* c m 2 s , which is of t h e same order of m a g n i t u d e of t h a t obtained by t h e M I T - S l a c g r o u p (eq.