Scholarly Publications
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This community showcases the academic contributions of faculty and researchers at Banaras Hindu University (BHU) and provides a year-wise compilation of publications across disciplines. Institutional Repository BHU
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PublicationArticle Characteristics of the projectile and target fragments produced in 8 4 Kr 3 6 - Emulsion interaction at 1 GeV per nucleon(World Scientific, 2020) S. Kumar; M.K. Singh; R.K. Jain; V. SinghIn the present analysis, we have focused on the emission characteristics of the projectile and target fragments produced from the interaction of 84Kr with nuclear emulsion at 1 A GeV. We have studied the variation of the fragmentation parameter for singly charged (Z = 1), doubly charged (Z = 2), lower multiple-charged (Z = 3-5), medium multiple-charged (Z = 6-9) and higher multiple-charged (Z > 9), projectile fragments with respect to mass of the projectile and found that they are showing the different behaviors for different projectile fragments. We have also studied the emission behavior of shower particles, with respect to the black and gray particles. The present studies show that the production of shower particles strongly depends on the incident kinetic energy of the projectile and also depending on the interaction of the different types of target nuclei of nuclear emulsion. © 2020 World Scientific Publishing Company.PublicationArticle Study of emission characteristics of the projectile fragments produced in the interaction of 84Kr36 with nuclear emulsion detector at 1 GeV(Physical Society of the Republic of China, 2020) M.K. Singh; S. Kumar; R.K. Jain; V. SinghThis article is focused on the characteristics of the projectile fragments of charge 1 ≤ Z ≤ 10 produced in the interaction of the 84Kr36 with nuclear emulsion detector at 1 GeV per nucleon. We have studied the average charge distribution and multiplicity distribution of the projectile fragments having charge 1 ≤ Z ≤ 10. We have also studied the emission behavior of various projectile fragments produced from the interaction with different target groups of nuclear emulsion detector. From this study we have observed that the emission of projectile fragments is strongly dependent on the interaction with different type of the target groups of nuclear emulsion detector as well as on the mass of the projectile beam. The results are compared with other experimental observations carried out at relativistic energy and found to be consistent. © 2020 The Physical Society of the Republic of China (Taiwan)PublicationArticle Multifragmentation Study of a 84Kr36 Projectile Interacting with a Nuclear Emulsion Detector at 1 GeV per nucleon(Korean Physical Society, 2019) M.K. Singh; V. Singh; N. BhatnagarThis article focuses on the emission characteristic of intermediate mass fragments (IMF) produced by the interactions of 84Kr36 with the NIKFI BR-2 nuclear emulsion at an incident kinetic energy of arround 1 GeV per nucleon. The multiplicity characteristics of singly charged fragments and doubly charged fragments with respect to a function of total charge confined in the fragments for Z ≥ 3 (Zb3) are studied and reported. The correlation between intermediate mass fragments and Zb3 are also studied and reported. The results are found to be consistent with there from other experiments. © 2019, The Korean Physical Society.PublicationArticle Multiplicity distributions of shower particles and target fragments in 84Kr36-emulsion interactions at 1 GeV per nucleon(Scientific Publishers, 2014) M.K. Singh; A.K. Soma; R. Pathak; V. SinghThis article focuses on multiplicity distributions of shower particles and target fragments for interaction of 84Kr36 with NIKFI BR-2 nuclear emulsion target at kinetic energy of ∼1 GeV per nucleon. Experimental multiplicity distributions of shower particles, grey particles, black particles and heavily ionization particles are well described by multicomponent Erlang distribution of multi-source thermal model. We have observed a linear correlation in multiplicities for the above mentioned particles or fragments. Further experimental studies have shown a saturation phenomenon in shower particle multiplicity with the increase of target fragment multiplicity. © 2013 IACS.PublicationArticle Target dependence of clan model parameter in 84Kr36 - Emulsion interactions at 1 GeV per nucleon(Indian Academy of Sciences, 2014) M.K. Singh; A.K. Soma; V. Singh; R. PathakThis article focusses on the study of clan model parameters and their target dependence in light of void probability scaling for heavy (Ag and Br) and light (C, N and O) groups of target present in nuclear emulsion detector using 84Kr36 at ∼1 A GeV. The variation of scaled rapidity-gap (rap-gap) probability with single moment combination has been studied. We found that experimental points lie approximately on the negative binomial distribution (NBD) curve, indicating a scaling behaviour. The increase in average clan multiplicities (N-) for interactions with the pseudorapidity interval (Δη) was also observed. The values of N- for AgBr targets are larger than those for C/N/O target and also average number of particles per clan (n-c) increases with increase in pseudorapidity interval. We further observed that for a particular target, the average number of particles per clan (n-c) increases with an increase in the size of projectile nucleus. © Indian Academy of Sciences.PublicationArticle Emission characteristics of the projectile fragments at relativistic energy(2013) M.K. Singh; A.K. Soma; Ramji Pathak; V. SinghA projectile (84Kr36) having kinetic energy around 1 A GeV has been used to expose NIKFI BR-2 emulsion target at GSI, Darmstadt, Germany. A total of 700 inelastic events has been identified and used in the present studies on projectile fragments. The emission angle of the projectile fragments are strongly affected by charge of the other projectile fragments emitted at same time with different emission angle is observed. The angular distribution studies show symmetrical nature for lighter charge projectile fragments. The symmetrical nature decreased with the charge of projectile fragments. We have observed at ~4o of emission angle for double charge projectile fragments, the momentum transfer during interaction is similar for various target species of emulsion. We have also observed a small but significant amplitude peaks on both side of the big peak for almost all light charge projectile fragments having different delta angle values. It reflects that there are a few percent of projectile fragments that are coming from the decay of heavy projectile fragments or any other process. © 2012 Indian Association for the Cultivation of Science.PublicationArticle Characteristics of compound multiplicity in 84Kr36 with various light and heavy targets at 1 GeV per nucleon(2013) N.S. Chouhan; M.K. Singh; V. Singh; R. PathakInteractions of 84Kr36 having kinetic energy around 1 GeV per nucleon with NIKFI BR-2 nuclear emulsion detector's target reveal some of the important features of compound multiplicity. Present article shows that width of compound multiplicity distributions and value of mean compound multiplicity have linear relationship with mass number of the projectile colliding system. © 2013 Indian Association for the Cultivation of Science.