Research Journal of Recent Sciences ________________________________________________ ISSN 2277-2502 Vol. 1 (ISC-2011), 232-237 (2012) Res.J.Recent Sci. Some Aspects of Secondary Charged Particles Produced in 4.5 A GeV/c 28Si-Nucleus Interactions Shaikh Sarfaraz Ali1 and H.Khushnood2 Department of Physics, Jamia Millia Islamia, Jamia Nagar, New Delhi-110025, INDIA Available online at, www.isca.in (Received 15th October 2011, revised 10th January 2012, accepted 25th January 2012) Abstract Attempt has been made to study the characteristics of secondary charged particles produced in 4.5 A GeV/c 28Si-nucleus interactions. The results reveal that the multiplicity correlations are not linear. These findings do not agree with those reported by several workers. However, these correlations may be reproduced quite well by second order polynomial. It is also observed that the dependence of mean normalized, RA and reduced multiplicity, RS on the multiplicity of different charged secondaries is linear up to a certain value and then acquire almost a constant value. Results also reveal that the k th root of central moment increases with the increase of and the values of normalized moments do not depend on the nature and energy of the projectiles. Finally, it is observed that the integral multiplicity distribution of heavily ionizing tracks provides a method for selecting the disintegration caused by the projectile due to different target nuclei of nuclear emulsion. Keywords, Multiplicity correlations, mean normalized and reduced multiplicity, central moment, nuclear emulsion, etc. References 1. Qasim Raza Khan M., Ph.D. Thesis submitted to Aligarh Muslim University, Aligarh (1988) 2. Saleem Khan et al M., Multiplicity characteristics of 12Cnucleus interactions at 4.5 A GeV c-1 , Can. J. Phys. 74, 651 (1996) 3. Saleem Khan et al M., Production of secondary charged particles in 12C-nucleus reactions at 4.5 A GeV per nucleon, J. Phys. Soc. Jpn. 65, 801 (1996) 4. Saleem Khan et al M., Study of disintegrations caused by 4.5 GeV carbon nuclei in nuclear emulsion, Nuovo Cimento A, 108, 147 (1996) 5. Singh et al Prithipal, Features of relativistic charged particles produced in catastrophic destruction of heavy emulsion nuclei at 4.5 A GeV/c, Can. J. Phys. 76, 559 (1998) 6. Abd Allah et al N. N., Non-statistical fluctuations of target fragments emitted in high energy nucleus-nucleus collisions, Can. J. Phys. 80, 119 (2002) 7. El Naghy et al A., Comparative study for nucleus-nucleus interactions and modified cascade evaporation model at (4.1-4.5) A GeV/c, APHNS, Heavy Ion Phys.15, 131 (2002) 8. Sarfaraz Ali et al Shaikh, Study of totally disintegrated events caused by 4.5 A GeV/c 28Si with heavy emulsion targets, Euro Phys. Lett. 65, 773 (2004) 9. Khushnood et al H., Some aspects of multi particle production in 4.5 GeV 28C-nucleus interactions, 6th International Conference on Physics and Astro Physics of Quark Gluon Plasma, Dec. 6-10,115 (2010) Goa, India 10. Khushnood et al H., A study of high energy hadron - nucleus interactions, Can. J. Phys. 61, 1120 (1983) 11. Shakeel et al A., Multi particle production in 24, 50 and 400 GeV/c particle-nucleus interactions, Nuovo Cim. 76A, 699 (1983) 12. Khushnood et al H., Some interesting features of charged particles produced in high energy hadron-nucleus collisions, Can. J. Phys. 68, 67 (1990)