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1. Study of the Involvement of 8Be and 9B Nuclei in the Dissociation of Relativistic 10C, 10B, and 12C Nuclei

Author

R. R. Kattabekov, R. Stanoeva, K. Z. Mamatkulov, Maria Haiduc, G. I. Britvich, D. A. Artemenkov, N. K. Kornegrutsa, S. P. Kharlamov, V. A. Kalinin, I. G. Zarubina, V. V. Rusakova, E. Firu, A. A. Zaitsev, M. K. Polkovnikov, V. A. Pikalov, V. Bradnova, Alina Tania Neagu, M. Yu. Kostin, P. I. Zarubin, P. A. Rukoyatkin, V. R. Sarkisyan, A. V. Maksimov, and E. Mitseva

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Carbon-12, White dwarf, Isotopes of boron, 01 natural sciences, Atomic and Molecular Physics, and Optics, Dissociation (chemistry), medicine.anatomical_structure, 0103 physical sciences, medicine, Atomic physics, 010306 general physics, Isotopes of beryllium, Nucleus, Isotopes of helium
Abstract

The results obtained by estimating the contribution of 8Be and 9B nuclei to the coherent dissociation of 10C, 10B, and 12C relativistic nuclei in nuclear track emulsions (“white” stars) are presented. The selection of white stars accompanied by 9B leads to a distinct peak appearing in the distribution of the excitation energy of 2α2p ensembles and having a maximum at 4.1 ± 0.3 MeV. A 8Be nucleus manifests itself in the coherent-dissociation reaction 10B → 2He + H with a probability of (25 ± 5)%, (14 ± 3)% of it being due to 9B decays. The ratio of the branching fractions of the 9B + n and 9Be + p mirror channels is estimated at 6 ± 1. An analysis of the relativistic dissociation of 12C nuclei in a nuclear track emulsion revealed nine 3α events corresponding to the Hoyle state.

Published
2017
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2. Dissociation of relativistic 10B nuclei in nuclear track emulsion

Author

A. A. Zaitsev, V. Bradnova, V. R. Sarkisyan, V. V. Rusakova, E. K. Mitsova, Alina Tania Neagu, K. Z. Mamatkulov, D. A. Artemenkov, R. Stanoeva, N. K. Kornegrutsa, E. Firu, P. A. Rukoyatkin, R. R. Kattabekov, P. I. Zarubin, Maria Haiduc, and I. G. Zarubina

Subjects
Physics, Nuclear and High Energy Physics, Isotope, 010308 nuclear & particles physics, Nuclear Theory, 01 natural sciences, Dissociation (chemistry), medicine.anatomical_structure, Nuclear track, 0103 physical sciences, H channel, Emulsion, medicine, Atomic physics, Nuclear Experiment, 010306 general physics, State distribution, Nucleus
Abstract

The structural features of 10B are studied by analyzing the dissociation of nuclei of this isotope at an energy of 1 A GeV in nuclear track emulsion. The fraction of the 10B → 2He + H channel in the charge state distribution of fragments is 78%. It was determined based on the measurements of fragment emission angles that unstable 8Beg.s. nuclei appear with a probability of (26 ± 4)%, and (14 ± 3)% of them are produced in decays of an unstable 9Bg.s. nucleus. The Be + H channel was suppressed to approximately 1%.

Published
2017
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4. Unstable nuclei in coherent dissociation of relativistic nuclei Be-7,Be-9, B-10 and C-10,C-11

Author

I. G. Zarubina, P. I. Zarubin, A. A. Zaitsev, R. Stanoeva, V. R. Sarkisyan, V. V. Rusakova, P. A. Rukoyatkin, K. Z. Mamatkulov, R. R. Kattabekov, M. Haiduc, N. K. Kornegrutsa, E. Firu, V. Bradnova, D. A. Artemenkov, A. Neagu, Joint Institute for Nuclear Research, Dubna, Russian Federation, Institute of Space Science, Magurele, Romania, Yerevan Physics Institute, ARM, Yerevan, Armenia, and Югозападен университет „Неофит Рилски'

Published
2016

5. Effects of acoustic and immobilization stress on background impulse activity of neurons of the central and lateral nuclei of the Amygdala

Author

R. Sh. Sarkisyan, G. M. Aradzhyan, and V. R. Sarkisyan

Subjects
medicine.anatomical_structure, Physiology, Lateral nucleus, Chemistry, General Neuroscience, media_common.quotation_subject, Monoaminergic, Impulse (psychology), medicine, Neuroscience, Amygdala, media_common
Abstract

It was shown that acoustic and immobilization stresses (developed due to a 2.5-h-long session of intensive, 100 dB, acoustic influence and a 2-h-long session of soft fixation of the body and extremities, respectively) result in significant modifications of the characteristics of background impulse activity of neurons of the nuclei of the rat amygdalar complex. Modifications were greater in the lateral nucleus of the amygdala. Possible roles of some structures of the monoaminergic cerebral systems in acute stress-related transformations of the impulse activity generated by neurons of the amygdalar complex are discussed.

Published
2006
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6. Multifractal analysis of particles produced in 197 Au, 32 S and 16 O induced interactions at high energies

Author

S.Z. Nasyrov, K. Söderström, A.K. Musaeva, Joakim Nystrand, D. C. Zhou, Andrei Gheata, J. J. Lord, A. M. Bakich, C.B. Yang, Vivek K. Gupta, S.A. Krasnov, J. Grote, L. N. Svechnikova, M. Roeper, Shiv K. Gupta, D. Skelding, J. T. Rhee, S. Lokanathan, I. Otterlund, S.Q. Feng, M. Tothova, C.G. Lee, R. Sethi, E. R. Ganssauge, S. I. Zhokhova, Dong-Hai Zhang, S. Dhamija, V.I. Skorobogatova, M. I. Tretyakova, V. A. Plyushchev, S. Vokal, V. Bradnova, K. G. Gulamov, V. Kumar, Y.X. Li, Paul Nilsson, P. Y. Zheng, D.M. Seliverstov, V. S. Bhatia, Z.R. Hu, L. S. Liu, V. G. Larionova, A. S. Gaitinov, A. Pavukova, B. B. Simonov, G.M. Chen, S. B. Luo, M. Karabova, U.I. Tuleeva, L. Liang, X. Cai, Madan M. Aggarwal, M. I. Adamovich, H. Q. Wang, W. Y. Qian, L.Z. Yu, Y. Lu, N. A. Salmanova, Y.L. Yu, F. A. Avetyan, F. G. Lepekhin, G. I. Orlova, Y. C. Kim, Shi-kun Wang, Janka Vrlakova, Maria Haiduc, Rashmi Raniwala, V. S. Navotny, A.M. Tawfik, Evert Anders Stenlund, O. V. Levitskaya, N. A. Marutyan, K. El Chenawi, A.M. Seitimbetov, S. K. Badyal, Z.G. Liu, K. B. Bhalla, N. K. Rao, Anju Bhasin, R. Amirikas, T. Wu, N. Saidkhanov, L. G. Sarkisova, Z. Q. Weng, V. I. Bubnov, S. P. Kharlamov, V. G. Bogdanov, Y.M. Qin, D. Felea, N. S. Lukicheva, V. V. Rusakova, Z.B. Yin, V. Vashisht, Alexander Kovalenko, T. P. Trofimova, S. Garpman, X.R. Wang, N. P. Andreeva, S. G. Gerassimov, N. G. Peresadko, E. S. Basova, I. S. Mittra, L. Just, Mihaela Gheata, C.I. Shakhova, L.S. Peak, E. K. Kanygina, Bo Jakobsson, V. R. Sarkisyan, M. M. Chernyavski, N. V. Petrov, L. P. Chernova, D. Hasegan, H. Liu, I. Y. Chasnikov, Y. A. Alexandrov, R. J. Wilkes, L. K. Mangotra, B. Singh, and W. Li

Subjects
Physics, Spectral representation, Fractal, Monte Carlo method, General Physics and Astronomy, Statistical analysis, Rapidity, Multifractal spectra, Multifractal system, Atomic physics, Statistical fluctuations, Molecular physics
Abstract

We analyse the multifractal structure of moments Gq in terms of a new variable X on data of 197Au, 32S and 16O induced interactions with emulsion nuclei and Monte Carlo generated samples. The dynamical properties of the produced particles are mapped onto multifractal spectra. We compare ln G in experimental data of 197Au, 32S and 16O with pure statistical fluctuations. It is shown that the stochasticity plays an important role for the G-moments.

Published
1998
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7. Critical behaviour in Au fragmentation at 10.7A GeV

Author

K. Söderström, P. Y. Zheng, L. K. Mangotra, K. G. Gulamov, R. Sethi, V. I. Bubnov, V. A. Plyushchev, S. Vokal, V. Kumar, Y.X. Li, Madan M. Aggarwal, V. S. Navotny, G.M. Chen, Joakim Nystrand, L. N. Svechnikova, L. P. Chernova, A.K. Musaeva, N. A. Salmanova, V. S. Bhatia, Anju Bhasin, N. Saidkhanov, C.I. Shakhova, L. S. Liu, V. G. Larionova, D. Skelding, J. T. Rhee, M. Tothova, E. R. Ganssauge, V. V. Rusakova, I. Y. Chasnikov, L. G. Sarkisova, C.B. Yang, Z. Q. Weng, Y. A. Alexandrov, Bo Jakobsson, Rashmi Raniwala, L. Karlsson, L.S. Peak, R. J. Wilkes, J. J. Lord, S.A. Krasnov, I. Manhas, V. R. Sarkisyan, J. Grote, N.A. Tawfik, Dong-Hai Zhang, M. I. Tretyakova, S.Z. Nasyrov, N. G. Peresadko, E. S. Basova, A.M. Seitimbetov, N. K. Rao, Janka Vrlakova, D. C. Zhou, A. S. Gaitinov, X. Cai, U.I. Tuleeva, F. A. Avetyan, A. M. Bakich, M. Roeper, Maria Haiduc, M. Karabova, M. M. Chernyavski, L. Just, H. Q. Wang, E. K. Kanygina, S. Garpman, M. I. Adamovich, X.R. Wang, W. Y. Qian, S. K. Badyal, Z.G. Liu, S. I. Zhokhova, Alexander Kovalenko, B. Singh, N. P. Andreeva, S. B. Luo, S. P. Kharlamov, T. P. Trofimova, Shi-kun Wang, V. G. Bogdanov, U. Henjes, S. G. Gerassimov, Y.M. Qin, N. S. Lukicheva, G. I. Orlova, Vivek K. Gupta, Shiv K. Gupta, K. B. Bhalla, S. Dhamija, R. Amirikas, Evert Anders Stenlund, N. A. Marutyan, S. Lokanathan, Y. Lu, V. Bradnova, and I. Otterlund

Subjects
Physics, Nuclear and High Energy Physics, Phase transition, education.field_of_study, Hadron, Population, Charge density, Supercritical fluid, Nuclear physics, Fragmentation (mass spectrometry), Nuclear fusion, Nuclear emulsion, Nuclear Experiment, education
Abstract

The complete charge distribution of products from Au nuclei fragmenting in nuclear emulsion at 10.7A GeV has been measured. Multiplicities of produced particles and particles associated with the target source are used to select peripheral and central events. A statistical analysis, based on event-by-event charge distributions, show that a population of subcritical, critical and supercritical events, i.e. a phase transition like behaviour, is observed among peripheral collisions.

Published
1998
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8. Complex analysis of gold interactions with photoemulsion nuclei at 10.7 GeV/nucleon within the framework of cascade and FRITIOF models

Author

L. Just, N. G. Peresadko, E. S. Basova, E. Stenlund, T. H. Burnett, V. Bradnova, L. N. Svechnikova, N. A. Marutyan, A.Y. Mashkov, M. Ochs, Rashmi Raniwala, Alexander Kovalenko, T. P. Trofimova, N. S. Lukicheva, M. I. Tretyakova, M. Roeper, E. K. Kanygina, L. P. Chernova, K. Söderström, V. V. Uzhinskii, U.I. Tuleeva, A.M. Seitimbetov, E. R. Ganssauge, M. Karabova, Dong-Hai Zhang, S.Z. Nasyrov, L. K. Mangotra, N. K. Rao, I. S. Mittra, C.I. Shakhova, H. Q. Wang, R. J. Wilkes, K. G. Gulamov, V. Kumar, I. Y. Chasnikov, L.S. Peak, N. A. Salmanova, W. Y. Qian, Y. L. Xia, G. Z. Eligbaeva, Y. A. Alexandrov, N. V. Petrov, S. Garpman, X. Cai, Vivek K. Gupta, S. Dhamija, L. E. Eremenko, Joakim Nystrand, Madan M. Aggarwal, S. Lokanathan, Bo Jakobsson, M. Tothova, F. A. Avetyan, G. S. Kalyachkina, M. M. Chernyavski, Sudhir Raniwala, N. P. Andreeva, D. C. Zhou, V. R. Sarkisyan, S. Kachroo, C. Graf, S. G. Gerassimov, V. S. Navotny, A. M. Bakich, S. P. Kharlamov, A. S. Gaitinov, S. B. Luo, S. K. Gupta, G.S. Shabratova, V. G. Bogdanov, Z.V. Anzon, K. B. Bhalla, Y.M. Qin, M. I. Adamovich, D. Skelding, Anju Bhasin, N. Saidkhanov, B.P. Tursunov, Z. Q. Weng, R. Amirikas, E. Baklitskaya, S. Mokerjee, G. I. Orlova, J. J. Lord, L. G. Sarkisova, J. Grote, N. V. Maslennikova, V. I. Bubnov, S. I. Zhokhova, V. V. Rusakova, S. K. Badyal, Y. D. Li, C.B. Yang, S. A. Krasnov, S. Kitroo, Janka Vrlakova, I. Otterlund, V. A. Plyushchev, S. Vokal, Renu Arora, V. S. Bhatia, L. S. Liu, V. G. Larionova, and P. Y. Zheng

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Cascade, Nucleon
Published
1997
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9. On the production of slow particles in high energy heavy ion collisions

Author

L. P. Chernova, C.B. Yang, S.A. Krasnov, S. B. Luo, S. P. Kharlamov, D. H. Zhang, D. Skelding, B.P. Tursunov, V. G. Bogdanov, Z.V. Anzon, Y.M. Qin, I. Y. Chasnikov, Z. I. Solovieva, S. N. Shpilev, Y. A. Alexandrov, G. S. Kalyachkina, P. Y. Zheng, N. V. Petrov, L. N. Svechnikova, L. K. Mangotra, E. K. Kanygina, Alexander Kovalenko, V. I. Bubnov, M. I. Tretyakova, S. Mokerjee, L. Just, T. P. Trofimova, G. S. Shabratova, X. Cai, S. Kitroo, R. Raniwala, S. Kachroo, C. Graf, V. V. Rusakova, S.Z. Nasyrov, D. C. Zhou, K. Söderström, Janka Vrlakova, N. P. Andreeva, M. Karabova, R. J. Wilkes, H. Q. Wang, A. M. Bakich, J. Nystrand, I. S. Mittra, W. Y. Qian, S. G. Gerassimov, Anju Bhasin, Y. D. Li, M. Tothova, N. Saidkhanov, A. S. Gaitinov, S. Dhamija, Sudhir Raniwala, C.I. Shakhova, N. A. Salmanova, S. K. Gupta, Bo Jakobsson, S. Vokal, Y. L. Xia, V. A. Plyushchev, Z. Q. Weng, M. Roeper, L.S. Peak, V. R. Sarkisyan, J. J. Lord, V. S. Navotny, V. Bradnova, Renu Arora, N. V. Maslennikova, J. Grote, V. S. Bhatia, L. S. Liu, N. G. Peresadko, E. S. Basova, V. G. Larionova, S. I. Zhokhova, M. M. Chernyavski, S. Garpman, G. I. Orlova, M. J. Adamovich, D. A. Carshiev, U.I. Tuleeva, E. R. Ganssauge, A.M. Seitimbetov, T. H. Burnett, N. K. Rao, Evert Anders Stenlund, M. M. Aggarwal, N. A. Marutyan, A.Y. Mashkov, I. K. Bazarov, V. K. Gupta, K. G. Gulamov, V. Kumar, S. Lokanathan, G. Z. Eligbaeva, K. B. Bhalla, R. Amirikas, M. Ochs, I. Otterlund, L. E. Fremenko, N. S. Lukicheva, S. K. Badyal, F. A. Avetyan, and L. G. Sarkisova

Subjects
Physics, High energy, Physics and Astronomy (miscellaneous), Chemical physics, Yield (chemistry), Hadron, Heavy ion, Impact parameter, Atomic physics, Nuclear Experiment, Engineering (miscellaneous)
Abstract

The mechanism for producing slow, target associated particles in high energy heavy ion collisions is investigated. It is shown that the same mechanism which was proposed for hadron induced interactions is likely to appear also for heavy-ion reactions. The results indicate however a much weaker correlation between impact parameter and yield of slow particles.

Published
1995
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10. 28Si(32S) fragmentation at 3.7 A, 14.6 A and 200 A GeV

Author

M. I. Tretyakova, X. Cai, L. N. Svechnikova, B.P. Tursunov, L. E. Eremenko, G. S. Shabratova, Bo Jakobsson, M. Ochs, S. Vokal, R. Raniwala, Alexander Kovalenko, T. H. Burnett, R. J. Wilkes, V. R. Sarkisyan, S. K. Gupta, V. I. Bubnov, V. A. Plyushchev, Renu Arora, G. S. Kalyachkina, T. P. Trofimova, V. S. Bhatia, L. S. Liu, V. G. Larionova, C.B. Yang, S.Z. Nasyrov, V. K. Gupta, S. P. Kharlamov, L. P. Chernova, V. G. Bogdanov, V. Bradnova, V. V. Rusakova, Y. L. Xia, Z.V. Anzon, Y.M. Qin, N. P. Andreeva, D. H. Zhang, S. Kachroo, I. Y. Chasnikov, V. S. Navotny, S. G. Gerassimov, Anju Bhasin, N. Saidkhanov, Y. A. Alexandrov, N. V. Petrov, C. Graf, K. Söderström, D. Skelding, M. M. Chernyavski, N. G. Peresadko, E. S. Basova, M. Karabova, K. B. Bhalla, S. B. Luo, G. I. Orlova, K. G. Gulamov, V. Kumar, Z. Q. Weng, H. Q. Wang, R. Amirikas, F. A. Avetyan, S. Garpman, S. K. Badayal, S. Dhamia, J. Nystrand, N. S. Lukicheva, Z. I. Solovieva, D. C. Zhou, W. Y. Qian, S. N. Shpilev, S. A. Karsnov, I. S. Mittra, G. Z. Eligbaeva, A. S. Gaitinov, C.I. Shakhova, L. G. Sarkisova, A. M. Bakich, S. Mokerjee, E. K. Kanygina, S. Kitroo, A.M. Seitimbetov, N. K. Rao, Janka Vrlakova, S. Lokanathan, L.S. Peak, J. J. Lord, J. Grote, M. Tothova, M. I. Adamovich, Sudhir Raniwala, Evert Anders Stenlund, P. Y. Zheng, L. K. Mangotra, M. Roeper, E. R. Ganssauge, N. V. Maslennikova, S. I. Zhokhova, M. M. Aggarwal, N. A. Marutyan, A.Y. Mashkov, I. K. Bazarov, Y. D. Li, L. Just, N. A. Salmanova, D. A. Carshiev, U.I. Tuleeva, and I. Otterlund

Subjects
Nuclear reaction, Nuclear physics, Physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), Astrophysics::High Energy Astrophysical Phenomena, Charge density, Nuclear fusion, High Energy Physics::Experiment, Spallation, Atomic physics, Nuclear Experiment
Abstract

The fragmentation topology of28Si at 3.7A GeV and 14.6A GeV and32S at 200A GeV in reactions with emulsion nuclei is presented. The fragmentation cross sections are very similar at all three energies. A statistical percolation model can qualitatively describe the data forZ≥ 6. The He production is underestimated and the 3 ≤Z ≤ 5 fragments overestimated by this model.

Published
1995
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11. Particle production in gold and lead induced interactions at AGS and SPS

Author

M. M. Aggarwal, N. A. Marutyan, A.Y. Mashkov, M. Karabova, N. A. Salmanova, H. Q. Wang, W. Y. Qian, M. Roeper, J. Nystrand, E. R. Ganssauge, F.A. Aveytan, T. H. Burnett, M Hajduk, V. I. Bubnov, I. S. Mittra, I. Otterlund, C.I. Shakhova, V. K. Gupta, M. I. Adamovich, L. Just, V. Bradnova, V. V. Rusakova, Y. L. Xia, M. Ochs, S. P. Kharlamov, J. J. Lord, S. Dhamija, V. G. Bogdanov, J. Grote, Z.V. Anzon, Y.M. Qin, V. S. Navotny, M. M. Chernyavski, G. S. Kalyachkina, A.M. Seitimbetov, Bhartendu K. Singh, M. I. Tretyakova, U.I. Tuleeva, R. Sethi, S. K. Gupta, V. A. Plyushchev, N. K. Rao, S. Kitroo, X. Cai, S. Lokanatan, L. G. Sarkisova, A. S. Gaitinov, Janka Vrlakova, A.K. Musaeva, P. Y. Zheng, D. C. Zhou, B.P. Tursunov, K. G. Gulamov, V. Kumar, V. S. Bhatia, Alexander Kovalenko, C.B. Yang, T. P. Trofimova, A. M. Bakich, G. Z. Eligbaeva, Anju Bhasin, N. Saidkhanov, L. S. Liu, V. G. Larionova, S. A. Krasnov, K. B. Bhalla, G. I. Orlova, L. N. Svechnikova, N. V. Maslennikova, M. Thotova, S. K. Badyal, E.K. Kanygian, R. Amirikas, G. S. Shabratova, Z. Q. Weng, R. Raniwala, N. S. Lukicheva, S. I. Zhokhova, Evert Anders Stenlund, S. B. Luo, S. N. Shpilev, R. J. Wilkes, L. E. Eremenko, Bo Jakobsson, S. Vokal, V. R. Sarkisyan, S.Z. Nasyrov, Z. I. Solovjeva, S. Kachroo, C. Graf, K. Söderström, L. P. Chernova, D. H. Zhang, I. Y. Chasnikov, Y. A. Alexandrov, N. V. Petrov, D. Skelding, L.S. Peak, N. G. Peresadko, E. S. Basova, S. Garpman, X.R. Wang, N. P. Andreeva, S. G. Gerassimov, and L. K. Mangotra

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Large Hadron Collider, Lead (geology), Physics::Instrumentation and Detectors, Nuclear Theory, Physics::Accelerator Physics, Particle, High Energy Physics::Experiment, Nuclear Experiment
Abstract

In this talk we will present some of the recent results from the experiments E863 and EMU12 using the BNL AGS Au-beam at 11.6 A GeV/c and the CERN SPS Pb-beam at 158 A GeV, respectively. Aspects on the particle production and on the target break-up will be discussed. The results are compared with model expectations. The lead data is here shown for the first time.

Published
1995
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12. Charged particle density distributions in Au induced interactions with emulsion nuclei at 10.7 A GeV

Author

E. R. Ganssauge, A.M. Seitimbetov, N. K. Rao, S. Lokanatan, A. S. Gaitinov, M. Tothova, L. E. Eremenko, P. Y. Zheng, I. Otterlund, M. I. Tretyakova, Bo Jakobsson, S. Vokal, N. V. Petrov, X. Cai, V. R. Sarkisyan, S.Z. Nasyrov, Z. I. Solovjeva, B.P. Tursunov, S. P. Kharlamov, M. Roeper, V. G. Bogdanov, Z.V. Anzon, R. J. Wilkes, Y.M. Qin, N. P. Andreeva, Evert Anders Stenlund, Anju Bhasin, N. Saidkhanov, N. V. Maslennikova, F. A. Avetyan, M. Karabova, D. Skelding, S. N. Shpilev, S. G. Gerassimov, H. Q. Wang, W. Y. Qian, S. Kitroo, M. Ochs, G. I. Orlova, Z. Q. Weng, Janka Vrlakova, M. I. Adamovich, G. S. Kalyachkina, D. A. Carshiev, U.I. Tuleeva, S. I. Zhokhova, C.B. Yang, S.A. Krasnov, Alexander Kovalenko, V. S. Navotny, L. P. Chernova, T. P. Trofimova, S. B. Luo, Y. L. Xia, N. G. Peresadko, E. S. Basova, D. H. Zhang, V. Bradnova, S. Garpman, N. S. Lukicheva, I. Y. Chasnikov, Y. A. Alexandrov, M. M. Chernyavski, S. K. Gupta, V. A. Plyushchev, L. G. Sarkisova, S. Kachroo, L. N. Svechnikova, C. Graf, Renu Arora, D. C. Zhou, K. Söderström, G. S. Shabratova, R. Raniwala, V. S. Bhatia, A. M. Bakich, L. S. Liu, V. G. Larionova, J. J. Lord, J. Grote, I. S. Mittra, C.I. Shakhova, L.S. Peak, S. K. Badyal, K. B. Bhalla, R. Amirikas, L. K. Mangotra, E. K. Kanygina, Y. D. Li, J. Nystrand, V. I. Bubnov, V. V. Rusakova, K. G. Gulamov, V. Kumar, G. Z. Eligbaeva, N. A. Salmanova, T. H. Burnett, V. K. Gupta, S. Dhamija, L. Just, M. M. Aggarwal, N. A. Marutyan, A.Y. Mashkov, I. K. Bazarov, T. Svensson, and S. Mokerjee

Subjects
Physics, Nuclear physics, Momentum, Nuclear and High Energy Physics, Pseudorapidity, Particle, Nuclear emulsion, Nuclear Experiment, Charged particle beam, Spectral line, Charged particle, Fermi Gamma-ray Space Telescope
Abstract

Charged particle pseudorapidity density distributions in Au induced reactions in nuclear emulsion at 10.7 A GeV have been measured. In peripheral events the shower particle distribution exhibits a two peak structure while in central collisions it has a Gaussian shape. The spectator protons appear in the second peak in the pseudorapidity spectra and exhibits a broader momentum distribution than expected from Fermi motion. The produced particle yield in central collisions is not substantially different from phenomenological descriptions based on data from O and S induced reactions.

Published
1995
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13. Unstable nuclei in coherent dissociation of relativistic nuclei7,9Be,10B and10,11C

Author

R. R. Kattabekov, D. A. Artemenkov, E. Firu, Alina Tania Neagu, I. G. Zarubina, R. Stanoeva, P. I. Zarubin, P. A. Rukoyatkin, V. R. Sarkisyan, V. V. Rusakova, K. Z. Mamatkulov, N. K. Kornegrutsa, A. A. Zaitsev, Maria Haiduc, and V. Bradnova

Subjects
Physics, History, Isotopes of boron, Spectral line, Computer Science Applications, Education, Nuclear physics, Stars, medicine.anatomical_structure, Helium-3, medicine, Isotopes of beryllium, Isotopes of helium, Nucleus, Excitation
Abstract

Contribution of the unstable nuclei 7Be, 8Be and ®B into coherent dissociation events ("white" stars) of relativistic nuclei 7,9Be, 10B and 10,11C is under study on the basis of a nuclear track emulsion exposed to beams of the JINR Nuclotron. Distributions over the opening angle of α-pairs indicate to a simultaneous presence of virtual 8Beg.s. and 8Be2+ states in the ground states of the 9Be and 10C nuclei. The core 9B is manifested in the 10C nucleus with a probability of (30 ± 4)%, Selection of the 10C "white" stars accompanied by 8Beg.s. (9B) leads to the appearance in the excitation energy distribution of 2α2p "quartets" of the distinct peak with a maximum at 4.1 ± 0.3 MeV. 8Beg.s. decays are presented in 21% 2He + 2H and 19% in the 3He of the all 11C "white" stars. 9Bg.s. decays are identified in "white" stars 11C → 2He + 2H constituting 14% of the 11C "white" stars. The 9B nucleus. is manifested in the "white" stars 10B → 2He + 2H with a probability of (9 ± 1)%. For the 10B case yield of 8Beg.s. nuclei with the respect to 9B is about a factor of 3 higher than 9B.

Published
2016
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14. Helium production in 10.7 A GeV Au induced nucleus-nucleus collisions

Author

D. Skelding, L. K. Mangotra, R. J. Wilkes, M. I. Tretyakova, X. Cai, M. Ochs, J. J. Lord, D. C. Zhou, J. Grote, S. Kitroo, N. A. Salmanova, Janka Vrlakova, A. M. Bakich, B.P. Tursunov, L. E. Eremenko, I. S. Mittra, L. P. Chernova, Evert Anders Stenlund, Bo Jakobsson, M. Karabova, H. Q. Wang, S.Z. Nasyrov, Z. I. Solovjeva, S. Vokal, N. P. Andreeva, C.I. Shakhova, W. Y. Qian, V. R. Sarkisyan, S. Kachroo, D. H. Zhang, N. S. Lukicheva, S. P. Kharlamov, S. K. Badyal, C. Graf, S. G. Gerassimov, V. G. Bogdanov, Y. L. Xia, I. Y. Chasnikov, Z.V. Anzon, K. Söderström, E. R. Ganssauge, Y. A. Alexandrov, V. I. Bubnov, Y.M. Qin, N. V. Petrov, G. S. Kalyachkina, M. I. Adamovich, L. Just, M. Tothova, V. V. Rusakova, F. A. Avetyan, Anju Bhasin, M. Roeper, M. M. Chernyavski, N. Saidkhanov, L.S. Peak, S. B. Luo, A. S. Gaitinov, N. G. Peresadko, E. S. Basova, K. B. Bhalla, R. Amirikas, I. Otterlund, Z. Q. Weng, L. G. Sarkisova, S. Garpman, S. N. Shpilev, Alexander Kovalenko, D. A. Carshiev, M. M. Aggarwal, U.I. Tuleeva, Sudhir Raniwala, N. V. Maslennikova, T. P. Trofimova, N. A. Marutyan, A.Y. Mashkov, I. K. Bazarov, E. K. Kanygina, T. H. Burnett, S. I. Zhokhova, S. Dhamija, V. K. Gupta, Y. D. Li, K. G. Gulamov, V. Kumar, P. Y. Zheng, G. Z. Eligbaeva, A.M. Seitimbetov, N. K. Rao, S. Lokanatan, J. Nystrand, V. Bradnova, S. Mokerjee, L. N. Svechnikova, G. S. Shabratova, R. Raniwala, V. S. Navotny, G. I. Orlova, S. K. Gupta, V. A. Plyushchev, Renu Arora, V. S. Bhatia, L. S. Liu, V. G. Larionova, C.B. Yang, and S.A. Krasnov

Subjects
Physics, Nuclear and High Energy Physics, chemistry.chemical_element, Nuclear physics, medicine.anatomical_structure, chemistry, Fragmentation (mass spectrometry), Total angular momentum quantum number, Angular momentum of light, Transverse momentum, medicine, Atomic physics, Nuclear Experiment, Nucleus, Helium
Abstract

Angular distributions of projectile-associated He fragments from Au induced reactions in nuclear emulsions at 10.7 A GeV have been measured with a precision of ±0.1 mrad. Two emission components are indubitably appearing, one representing fragmentation of a fermionic system while the other one exhibits large transverse momentum transfer. Possible explanations for the latter component are discussed.

Published
1994
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15. Rapidity density distributions and their fluctuations in violent Au-induced nuclear interactions at 11.6 A GeV/c

Author

Evert Anders Stenlund, M. I. Adamovich, M. I. Tretyakova, M. M. Aggarwal, N. A. Marutyan, Y. L. Xia, I. K. Bazanov, X. Cai, S. Lokanathan, D. Skelding, S. N. Shpilev, R. J. Wilkes, L. N. Svechnikova, N. G. Peresadko, E. S. Basova, L. K. Mangotra, S. Garpman, K. D. Tolstov, G. S. Shabratova, R. Raniwala, Y. D. Li, B.P. Tursunov, L. G. Sarkisova, L. Just, M. Tothova, E. K. Kanygina, D. C. Zhou, Sudhir Raniwala, A. S. Gaitinov, V. I. Bubnov, L. P. Chernova, S. P. Kharlamov, S. Mookerjee, Z. I. Solovjeva, S. B. Luo, G. F. Xu, T. P. Trofimova, V. G. Bogdanov, Z.V. Anzon, Y.M. Qin, V. S. Navotny, I. F. Chasnikov, M. Ochs, E. R. Ganssauge, T. I. Shakhova, D. H. Zhang, M. M. Chernyavsky, V. N. Lepetan, I. S. Mittra, Anju Bhasin, N. Saidkhanov, E. L. Surin, L. E. Eremenko, N. K. Rao, Y. A. Alexandrov, Bo Jakobsson, G. I. Orlova, N. V. Petrov, S. Vokal, P. Y. Zheng, V. R. Sarkisyan, Z. Q. Weng, J. J. Lord, S. K. Badyal, N. V. Maslennikova, J. Nystrand, H. S. Palsania, F. A. Avetyan, N. P. Andreeva, S. H. Nasyrov, J. Grote, S. I. Zhokhova, S. G. Gerassimov, T. Koss, S. K. Gupta, V. A. Plyushchev, Renu Arora, S. Kachroo, M. Karabova, D. A. Qarshiev, M. Roeper, H. Q. Wang, V. S. Bhatia, L. S. Liu, K. Söderström, V. G. Larionova, W. Y. Qian, T. H. Burnett, T. N. Maksimkina, I. Otterlund, G. S. Kalyachkina, V. K. Gupta, K. G. Gulamov, V. Kumar, C.B. Yang, S. A. Krasnov, G. Z. Eligbaeva, P. Lal, K. B. Bhalla, N. S. Lukicheva, D. A. Carshiev, U.I. Tuleeva, N. A. Salmanova, S. Kitroo, and Janka Vrlakova

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, SIMPLE (dark matter experiment), Particle physics, Density distribution, Nuclear Theory, Extrapolation, Rapidity, Nuclear Experiment, Charged particle
Abstract

The first rapidity density distributions from relativistic collisions between truly heavy nuclei are presented. The distributions are compared with expectations from a linear extrapolation of results obtained from collisions with lighter nuclei. Fluctuations are essentially described by a simple scenario with stochastic emission.

Published
1994
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16. Systematic investigation of scaled factorial cumulant moments for nucleus-nucleus interactions

Author

G. Z. Eligbaeva, H. S. Palsania, B.P. Tursunov, M. M. Chernyavski, T. H. Burnett, N. K. Rao, G. S. Kalyachkina, V. K. Gupta, S. Kachroo, D. Skelding, K. Söderström, J. Nystrand, J. T. Rhee, Z. O. Weng, Z. V. Anson, L. P. Chernova, L. G. Sarkisova, N. A. Salmanova, L. E. Eremenko, T. P. Trofimova, L. N. Svechnikova, H. Huang, V. I. Bubnov, S. Mookerjee, E. R. Ganssauge, D. H. Zhang, G. I. Orlova, M. Karabova, H. Q. Wang, L. K. Mangotra, K. B. Bhalla, I. S. Mittra, Anju Bhasin, N. Saidkhanov, H. H. Heckman, Sudhir Raniwala, S. Vokal, W. Y. Qian, G. S. Shabratova, R. Raniwala, B. Jacobsson, V. M. Rappoport, Y. A. Alexandrov, S.Z. Nasyrov, B. Judek, N. S. Lukicheva, N. V. Petrov, Z. I. Solovieva, N. G. Peresadko, E. S. Basova, V. R. Sarkisyan, S. Garpman, D. C. Zhou, S. A. Krasnov, K. D. Tolstov, F. A. Avetyan, P. Y. Zheng, A. S. Gaitinov, T. I. Shakhova, J. J. Lord, S. K. Gupta, S. K. Badyal, D. A. Carshiev, U.I. Tuleeva, J. Grote, T. Koss, G. F. Xu, I. Otterlund, I. Y. Chasnicov, M. I. Adamovich, S. P. Kharlamov, N. P. Andreeva, Renu Arora, V. G. Bogdanov, V. N. Lepetan, S. G. Gerassimov, S. Kitroo, Y.M. Qin, V. S. Bhatia, L. S. Liu, V. G. Larionova, M. I. Tretyakova, V. S. Navotny, J. Wilkes, X. Cai, E. K. Kanygina, S. I. Zhochova, E. L. Surin, S. Lokanathan, N. V. Maslennikova, V. A. Plyuschev, Evert Anders Stenlund, S. N. Shpilev, S. B. Luo, M. M. Aggarwal, N. A. Marutyan, I. K. Bazarov, P. Lal, J. C. Zhou, K. G. Gulamov, and V. Kumar

Subjects
Nuclear reaction, Physics, Factorial, Pseudorapidity, Inverse, High Energy Physics::Experiment, Multiplicity (mathematics), Statistical physics, Nuclear Experiment, Particle density, Cumulant, Bin
Abstract

We use scaled factorial cumulant moments to analyze pseudorapidity fluctuations in nucleus-nucleus collisions. This approach is similar to the method of scaled factorial moments except that it removes the effects of lower-order correlations upon a given moment. Significant second-order cumulants and cumulant indices (slopes with respect to bin size) are found for all of the interactions studied. These indices are found to have an inverse dependence upon average pseudorapidity particle density.

Published
1993
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17. STUDY OF ANGULAR DISTRIBUTION OF HELIUM PROJECTILE FRAGMENTS IN INTERACTIONS OF 200 A GeV 32S IONS WITH EMULSION NUCLEI

Author

S. P. Kharlamov, K. D. Tolstov, D. C. Zhou, V. G. Bogdanov, G. S. Kalyachkina, Z.V. Anzon, Y.M. Qin, M. I. Adamovich, N. A. Salmanova, S. B. Luo, E. R. Ganssauge, Anju Bhasin, N. Saidkhanov, S. K. Gupta, R. J. Wilkes, V. A. Plyushchev, S. Kachroo, P. Lal, N. G. Peresadko, E. S. Basova, Y. L. Xia, S. K. Badyal, M. Tothova, Z. Q. Weng, Sudhir Raniwala, H. H. Heckman, M. Karabova, T. H. Burnett, D. A. Qarshiev, H. Q. Wang, J. Nystrand, K. Söderström, M. M. Chernyavsky, Evert Anders Stenlund, Renu Arora, V. S. Bhatia, W. Y. Qian, S. Garpman, M. I. Tretyakova, E. L. Surin, L. S. Liu, V. G. Larionova, I. Otterlund, M. M. Aggarwal, V. K. Gupta, L. P. Chernova, P. Y. Zheng, N. A. Marutyan, D. Skelding, L. S. Lukicheva, Gautam Kaul, X. Cai, L. K. Mangotra, K. G. Gulamov, V. Kumar, J. J. Lord, L. Just, S. N. Shpilev, A. S. Gaitinov, H. Nasrulaeva, T. N. Maksimkina, J. Grote, V. I. Bubnov, S. Mookerjee, D. H. Zhang, S. Lokanathan, G. Z. Eligbaeva, N. P. Andreeva, B. Judek, G. I. Orlova, I. S. Mittra, S. G. Gerassimov, H. Huang, I. Y. Chasnikov, H. S. Palsania, S. Kulikova, Y. A. Alexandrov, L. G. Sarkisova, S. Kitroo, N. V. Petrov, Z. I. Solovjeva, U.I. Tuleeva, S. H. Nasyrov, N. K. Rao, T. I. Shakhova, T. P. Trofimova, F. A. Avetyan, N. V. Maslennikova, S.A. Krasnov, S. I. Zhokhova, L. N. Svechnikova, E. K. Kanygina, L. E. Eremenko, Bo Jakobsson, S. Vokal, V. R. Sarkisyan, G. S. Shabratova, R. Raniwala, G. F. Xu, V. N. Lepetan, J. T. Rhee, V. M. Rappoport, V. S. Navotny, and K. B. Bhalla

Subjects
Physics, Nuclear and High Energy Physics, Projectile, General Physics and Astronomy, chemistry.chemical_element, Astronomy and Astrophysics, Breakup, Ion, Nuclear physics, Momentum, chemistry, Stack (abstract data type), Emulsion, Atomic physics, Nuclear Experiment, Helium, Excitation
Abstract

This paper presents data on the emission of helium fragments due to break up of 200 A GeV 32S ions in collision with emulsion nuclei. A total of 499 minimum bias events have been studied in an emulsion stack and 97 events in emulsion chambers. Emission angles of He fragments have been measured with high precision. This data has been compared with data of breakup of heavier as well as lighter projectiles and we observe that the value of the momentum spread, σ(p), increases with increasing projectile mass. The bulk part of the helium emission is consistent with a single source for helium fragments with an average excitation energy of (9.1±0.9) MeV. A tail of a few (

Published
1993
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18. Clustering in light nuclei in fragmentation above 1 A GeV

Author

N. P. Andreeva, D. A. Artemenkov, V. Bradnova, M. M. Chernyavsky, A. Sh. Gaitinov, N. A. Kachalova, S. P. Kharlamov, A. D. Kovalenko, M. Haiduc, S. G. Gerasimov, L. A. Goncharova, V. G. Larionova, A. I. Malakhov, A. A. Moiseenko, G. I. Orlova, N. G. Peresadko, N. G. Polukhina, P. A. Rukoyatkin, V. V. Rusakova, V. R. Sarkisyan, T. V. Shchedrina, E. Stan, R. Stanoeva, I. Tsakov, S. Vokál, A. Vokálová, P. I. Zarubin, and I. G. Zarubina

Published
2010
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19. Coherent dissociation of relativistic [sup 9]C nuclei in nuclear track emulsion

Author

D. O. Krivenkov, D. A. Artemenkov, V. Bradnova, M. Haiduc, R. R. Kattabekov, S. P. Kharlamov, N. V. Kondratieva, K. Z. Mamatkulov, A. I. Malakhov, A. A. Moiseenko, G. I. Orlova, N. G. Peresadko, N. G. Polukhina, P. A. Rukoyatkin, V. V. Rusakova, V. R. Sarkisyan, R. Stanoeva, S. Vokal, P. I. Zarubin, I. G. Zarubina, Yu. E. Penionzhkevich, and S. M. Lukyanov

Subjects
Physics, Baryon, Nuclear reaction, medicine.anatomical_structure, Meson, Hadron, medicine, Elementary particle, Atomic physics, Nucleon, Nucleus, Dissociation (chemistry)
Abstract

For the first time nuclear track emulsion is exposed to relativistic 9C nuclei. A systematic pattern of the distributions of charge combinations of fragments in the peripheral interactions of 9C nuclei in a nuclear track emulsion has been obtained. The main conclusion is that the contribution of the channel 9C→8B+p and 9C→7Be+2p is most important in events that do not involve the production of target‐nucleus fragments or mesons (coherent dissociation). It can be concluded that in the peripheral 9C dissociation the picture hitherto obtained for 8B and 7Be with the addition of one or two protons, respectively, is reproduced. Three coherent dissociation events 9C→33He accompanied by neither target fragments of the nucleus target nor charged mesons are identified.

Published
2010
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20. On intermittency in heavy-ion collisions and the importance of γ-conversion in a multi-dimensional intermittency analysis

Author

S. C. Strausz, D. Skelding, M. M. Chernyavsky, A. S. Gaitinov, P. Y. Zheng, V. M. Rappoport, P. Lal, N. A. Salmanova, G.S. Shabratova, M. I. Tretyakova, K. G. Gulamov, V. Kumar, L. P. Chernova, Madan M. Aggarwal, H. Huang, S. K. Gupta, V. A. Plyushchev, S. Vokal, X. Cai, Renu Arora, V. G. Larinova, J. T. Rhee, N. V. Maslennikova, Rashmi Raniwala, V. S. Bhatia, H. H. Heckman, N. K. Rao, L. S. Liu, F. G. Kadyrov, G. Z. Eligbaeva, S. I. Zhokhova, S. Lokanathan, Z. I. Solovjeva, N. G. Peresadko, E. S. Basova, Sudhir Raniwala, T. I. Shakhova, V. S. Navotny, S. P. Kharlamov, V. I. Bubnov, V. G. Bogdanov, Z.V. Anzon, I. Y. Chasnikov, S. Mookerjee, T. H. Burnett, Y. A. Alexandrov, I. Otterlund, Anju Bhasin, N. Saidkhanov, Gautam Kaul, N. V. Petrov, H. S. Palsania, Evert Anders Stenlund, Z. Q. Weng, Dong-Hai Zhang, J. F. Sun, L. N. Svechnikova, F. A. Avetyan, S. H. Nasyrov, U.I. Tuleeva, N. A. Marutyan, R. J. Wilkes, S. Garpman, M. Karabova, K. D. Tolstov, N. P. Andreeva, H. Q. Wang, S. G. Gerassimov, S. B. Luo, S. A. Krasnov, G. S. Kalyachkina, J. Ravina, I. S. Mittra, E. R. Ganssauge, K. B. Bhalla, H. Nasrulaeva, M. I. Adamovich, K. Söderström, G. I. Orlova, J. J. Lord, J. Grote, T. Koss, W. Y. Oian, T. P. Trofimova, L. G. Sarkisova, D. C. Zhou, S. Kachroo, S. K. Badyal, L. K. Mangotra, B. Judek, N. S. Lukicheva, L. E. Eremenko, Bo Jakobsson, V. R. Sarkisyan, E. K. Kanygina, G. F. Xu, and V. N. Lepetan

Subjects
Physics, Nuclear and High Energy Physics, Plane (geometry), Signal, Computational physics, law.invention, Azimuth, law, Phase space, Intermittency, Pseudorapidity, Particle, Atomic physics, Scaling
Abstract

Non-statistical fluctuations are used to probe the dynamical behaviour of multi-particle production in heavy-ion interactions at ultra-relativistic energies. In a one-dimensional analysis a 1〈ϱ〉-scaling is established and it is furthermore found that effects from higher-order particle correlations are small. In a two-dimensional analysis it is shown that a small background of particle pairs with a narrow opening angle can distort the observed signal. As an example we estimate the influence of γ-conversion and find that in our experiment γ-conversion alone gives results consistent with the experimental observations from a two-dimensional analysis. Whereas a two-dimensional analysis filters events where two particles are extremely close in phase space, the one-dimensional analysis picks out events with particles clustered in pseudorapidity, which are at the same time diluted in the azimuthal plane.

Published
1992
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21. Local particle densities and global multiplicities in central heavy ion interactions at 3.7, 14.6, 60 and 200A GeV

Author

V. I. Bubnov, L. P. Chernova, S. Mookerjee, L. N. Svechnikova, V. M. Rappoport, D. H. Zhang, Z. I. Solovjeva, I. Y. Chasnikov, S. N. Shpilev, G. S. Shabratova, Y. A. Alexandrov, R. Raniwala, N. V. Petrov, Y. L. Xia, L. E. Eremenko, F. A. Avetyan, N. G. Peresadko, E. S. Basova, Bo Jakobsson, S. K. Gupta, M. M. Chernyavsky, S. Kachroo, K. D. Tolstov, S. Garpman, J. T. Rhee, S. Vokal, V. R. Sarkisyan, T. I. Shakhova, K. Söderström, M. I. Adamovich, S. Lokanathan, S. P. Kharlamov, E. L. Surin, V. G. Bogdanov, Gautam Kaul, Y.M. Qin, A. S. Gaitinov, J. J. Lord, D. Skelding, K. G. Gulamov, G. F. Xu, L. K. Mangotra, J. Grote, V. Kumar, B. Judek, S. K. Badyal, N. S. Lukicheva, Anju Bhasin, N. Saidkhanov, T. P. Trofimova, S. B. Luo, V. A. Plyushchev, V. S. Navotny, M. Karabova, M. M. Aggarwal, H. Huang, N. P. Andreeva, V. N. Lepetan, D. A. Qarshiev, H. Q. Wang, N. A. Marutyan, G. Z. Eligbaeva, Renu Arora, V. S. Bhatia, L. S. Liu, V. G. Larionova, W. Y. Qian, S. G. Gerassimov, Z. Q. Weng, I. S. Mittra, H. Nasrulaeva, T. N. Maksimkina, G. I. Orlova, S. Kulikova, Evert Anders Stenlund, G. S. Kalyachkina, S. I. Zhochova, M. I. Tretyakova, X. Cai, K. B. Bhalla, J. Nystrand, P. Lal, E. K. Kanygina, L. G. Sarkisova, E. R. Ganssauge, T. H. Burnett, S. A. Krasnov, V. K. Gupta, D. C. Zhou, S. Kitroo, H. H. Heckman, I. Otterlund, H. S. Palsania, N. V. Maslennikova, S. H. Nasyrov, M. Tothova, Sudhir Raniwala, N. K. Rao, P. Y. Zheng, N. A. Salmanova, L. Just, Z. V. Anson, U.I. Tuleeva, and R. J. Wilkes

Subjects
Physics, Nuclear physics, Particle physics, Physics and Astronomy (miscellaneous), Pseudorapidity, Inverse, Multiplicity (mathematics), Rapidity, Elementary particle, Quantum field theory, Particle density, Centrality, Engineering (miscellaneous)
Abstract

The energy and centrality dependence of local particle pseudorapidity densities as well as validity of various parametrizations of the distributions are examined. The dispersion, σ, of the rapidity density distribution of produced particles varies slowly with centrality and is 0.80, 0.98, 1.21 and 1.41 for central interactions at 3.7, 14.6, 60 and 200A GeV incident energy, respectively, σ is found to be independent of the size of the interacting system at fixed energy. A novel way of representing the window dependence of the multiplicity as normalized variance versus inverse average multiplicity is outlined.

Published
1992
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22. Rapidity density distributions inO16,Si28,S32,Au197, andPb208induced heavy-ion interactions at 4A–200AGeV

Author

S. K. Badyal, N. Saidkhanov, V. M. Rappoport, S. A. Krasnov, S. P. Kharlamov, V. G. Bogdanov, S. Kachroo, N. A. Marutyan, J. Grote, H. Q. Wang, L. N. Svechnikova, S. Lokanathan, V. I. Bubnov, K. G. Gulamov, N. A. Salmanova, V. R. Sarkisyan, V. K. Gupta, I. S. Mittra, L. Just, N. K. Rao, Y. M. Qin, E. R. Ganssauge, W. Y. Qian, Z. V. Anzon, Bo Jakobsson, J. Lord, H. H. Heckman, D. C. Zhou, S. Vokal, M. Karabova, B. Judek, S. Kitroo, D. H. Zhang, S. Mookerjee, K. Söderström, S. N. Shpilev, E. L. Surin, K. D. Tolstov, M. M. Chernyavsky, L. K. Mangotra, L. E. Eremenko, Y. A. Alexandrov, Y. L. Xia, V. A. Plyushchev, P. Y. Zheng, N. P. Andreeva, E. Stenlund, S. Raniwala, G. I. Orlova, N. V. Petrov, S. B. Luo, V. N. Lepetan, M. Tothova, G. Z. Eligbaeva, D. A. Qarshiev, T. I. Shakhova, S. K. Gupta, H. Huang, D. Skelding, T. N. Maksimkina, G. L. Kaul, N. G. Peresadko, U. Tuleeva, L. S. Liu, I. Otterlund, T. P. Trofimova, K. B. Bhalla, N. S. Lukicheva, E. K. Kanygina, L. P. Chernova, V. Kumar, T. H. Burnett, S. Kulikova, S. Garpman, M. I. Tretyakova, N. V. Maslennikova, X. Cai, L. G. Sarkisova, J. Nystrand, I. Y. Chasnikov, M. M. Aggarwal, H. Nasrulaeva, G. F. Xu, S. I. Zhokhova, G. S. Shabratova, R. J. Wilkes, V. G. Larionova, F. A. Avetyan, Z. I. Solovjeva, G. S. Kalyachkina, R. Arora, M. I. Adamovich, S. G. Gerassimov, R. Raniwala, H. S. Palsania, A. S. Gaitinov, P. Lal, Z. Q. Weng, J. T. Rhee, V. S. Bhatia, V. S. Navotny, A. Bhasin, and S. H. Nasyrov

Subjects
Nuclear physics, Physics, Range (particle radiation), General Physics and Astronomy, Heavy ion, Rapidity, Charged particle
Abstract

The mass, energy, and centrality dependence of rapidity density distributions of relativistic, charged particles, produced in heavy-ion interactions in the energy range 4A–200A GeV, are investigated. The results indicate that the rapidity density distributions show systematic variations, which are used to predict distributions for Au+Au and Pb+Pb interactions in a model-independent way.

Published
1992
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23. Review of recent results on particle production from EMU01

Author

V. I. Bubnov, D. Skelding, L. P. Chernova, V. G. Bogdanov, S. Lokanathan, G. S. Shabratova, F. A. Avetyan, S. L. Kachroo, I. Y. Chasnicov, H. Huang, G. F. Xu, J. T. Rhee, Madan M. Aggarwal, D. C. Zhou, F. G. Kadyrov, I. S. Mittra, H. Nasrulaeva, R. J. Wilkes, P. Lal, K. D. Tolstov, N. G. Peresadko, V. S. Navotny, S. Raniwala, Gautam Kaul, V. S. Bhatia, T. I. Shakhova, U. Tuleeva, L. G. Sarkisova, P. Y. Zheng, J. J. Lord, H. H. Heckman, H. Palsania, J. Grote, X. Cai, V. M. Rappoport, V. R. Sarkisyan, S. B. Luo, S. H. Nasyrov, K. G. Gulamov, N. Saidkhanov, J. C. Zhou, S. C. Strausz, V. N. Lepetan, S. K. Gupta, M. I. Tretyakova, T. Koss, E. R. Ganssauge, W. Y. Qian, S. G. Gerassimov, Y. A. Alexandrov, N. A. Marutyan, Z. V. Anzon, E. Stenlund, N. V. Petrov, N. V. Maslennikova, M. M. Chernyavski, B. Judek, K. B. Bhalla, V. A. Plyuschev, N. K. Rao, R. Raniwala, Anju Bhasin, G. S. Kalyachkina, T. H. Burnett, V. G. Larionova, R. Arora, B. Jacobsson, A. S. Gaitinov, M. I. Adamovich, K. Soderstrom, S. Vokal, E. K. Kanygina, J. F. Sun, T. P. Trofimova, L. K. Mangotra, D. H. Zhang, S. Mookerjee, H. Q. Wang, M. Karabova, N. P. Andreeva, Z. O. Weng, G. Z. Eligbaeva, L. E. Eremenko, I. Otterlund, N. A. Salmanova, S. I. Zhokova, S. P. Kharlamov, S. Garpman, L. S. Liu, E. Basova, N. S. Lukicheva, V. Kumar, G. I. Orlova, S. A. Krasnov, S. K. Badyal, L. N. Svechnikova, and Z. I. Solovieva

Subjects
Physics, Nuclear and High Energy Physics, Superposition principle, Distribution (mathematics), Monte Carlo method, Detector, Particle, Statistical physics, Nuclear Experiment, Beam (structure), Charged particle, Factorial moment, Computational physics
Abstract

The EMU01 Collaboration has employed emulsion chamber and pellicle detectors to accumulate a large database of heavy nucleus interactions. Samples include both minimum bias and central collisions, analyzed in a uniform manner to extract multiplicities and angular distributions of charged particles and nuclear fragments. We find that the main features of these distribution are well represented by geometrical superposition models. A unique feature of EMU01 is the use of emulsion chambers with thin foil targets to observe produced particle angular distributions with exceptionally high precision, permitting extension of fluctuations and correlations analyses beyond the resolution limits imposed by other experimental techniques. The data are generally well reproduced by interaction simulations such as FRITIOF (the Lund monte carlo for nuclear collisons) which include only conventional physics effects. However, the analysis of fluctuations and correlations via factorial moment and cumulant techniques yields some suggestive results which require further investigation, both by continued analysis of existing data and from Au and Pb beam exposures scheduled for the next few years.

Published
1992
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24. A systematic study of the energy independent behaviour of the fragmentation regions in16O-Em interactions from 3.7 to 200A GeV

Author

H. O. Wang, V. I. Bubnov, S. Mookerjee, Z. V. Anson, Anju Bhasin, N. Saidkhanov, K. Söderström, M. Karabova, W. Y. Qian, B. Judek, N. S. Lukicheva, S. Kachroo, N. G. Peresadko, E. S. Basova, M. I. Adamovich, R. J. Wilkes, G. S. Kalyachkina, Gautam Kaul, N. A. Marutyan, D. Skelding, H. Nasrulaeva, P. Lal, U.I. Tuleeva, G. I. Orlova, G. F. Xu, Sudhir Raniwala, S. Lokanathan, N. A. Salmanova, V. M. Rappoport, G.S. Shabratova, S. B. Luo, A. S. Gaitinov, T. P. Trofimova, V. N. Lepetan, L. P. Chernova, J. J. Lord, P. Y. Zheng, J. Grote, T. Koss, D. C. Zhou, S. Garpman, K. D. Tolstov, I. Y. Chasnikov, I. Otterlund, Y. A. Alexandrov, N. P. Andreeva, E. R. Ganssauge, N. V. Petrov, S. G. Gerassimov, M. M. Chernyavski, F. A. Avetyan, S. K. Gupta, I. S. Mittra, V. A. Plyushchev, Rashmi Raniwala, F. G. Kadyrov, Z. I. Solovjeva, T. I. Shakhova, S. Vokal, J. Ravina, Renu Arora, Y. Z. Liu, M. I. Tretyakova, V. S. Bhatia, L. S. Liu, V. G. Larionova, X. Cai, N. K. Rao, Madan M. Aggarwal, K. B. Bhalla, V. S. Navotny, S. P. Kharlamov, V. G. Bogdanov, Z. O. Weng, L. G. Sarkisova, N. V. Maslennikova, E. K. Kanygina, L. E. Eremenko, Bo Jakobsson, V. R. Sarkisyan, S. K. Badyal, H. S. Palsania, S. H. Nasyrov, S. C. Strausz, K. G. Gulamov, V. Kumar, S. A. Krasnov, L. K. Mangotra, G. Z. Eligbaeva, Evert Anders Stenlund, T. H. Burnett, Dong-Hai Zhang, S. I. Zhochova, H. H. Heckman, L. N. Svechnikova, and J. T. Rhee

Subjects
Physics, Physics and Astronomy (miscellaneous), Projectile, Limiting, Statistical fluctuations, law.invention, Nuclear physics, Fragmentation (mass spectrometry), law, Intermittency, Incident energy, Multiplicity (chemistry), Nuclear Experiment, Engineering (miscellaneous), Scaling
Abstract

The scaling behaviour in the fragmentation regions is investigated for16O-Em interactions from 3.7 to 200A GeV. It is found that in both the projectile- and the target-fragmentation regions, the multiplicity and pseudo-rapidity distributions as well as the two-particle pseudo-rapidity correlations are independent of incident energy. The intermittency indices at 14.6, 60 and 200A GeV are the same within the experimental errors, indicating that the limiting fragmentation hypothesis works with regard to dynamical as well as statistical fluctuations.

Published
1992
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25. First Results on the Interactions of Relativistic 9C Nuclei in Nuclear Track Emulsion

Author

I. G. Zarubina, P. I. Zarubin, R. Stanoeva, V. Bradnova, G. I. Orlova, T. V. Shchedrina, D. O. Krivenkov, V. V. Rusakova, V. N. Kondratieva, N. G. Polukhina, A. A. Moiseenko, Alexander Malakhov, S. P. Kharlamov, D. A. Artemenkov, S. Vokal, M. Haiduc, P. A. Rukoyatkin, V. R. Sarkisyan, and N. G. Peresadko

Subjects
Nuclear physics, Physics, Nuclear track, Meson, Emulsion, Dissociation (chemistry)
Abstract

\indent First results of the exposure of nuclear track emulsions in a secondary beam enriched by $^9$C nuclei at energy of 1.2 A GeV are described. The presented statistics corresponds to the most peripheral $^9$C interactions. For the first time a dissociation $^9$C $\to3^3$He not accompanied by target fragments and mesons is identified.\par

Published
2009
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26. On the systematic behaviour of the intermittency-indices in nuclear interactions

Author

K. G. Gulamov, V. Kumar, V. M. Rappoport, Vivek K. Gupta, B. Dressel, K. D. Tolstov, K. Söderström, H. O. Wang, Madan M. Aggarwal, F. G. Kadyrov, G. Z. Eligbaeva, L. P. Chernova, Z. I. Solovjeva, G. F. Xu, B. Judek, J. C. Zhou, N. S. Lukicheva, N. A. Salmanova, T. I. Shakhova, Anju Bhasin, D. H. Zhang, I. Y. Chasnikov, Y. A. Alexandrov, N. V. Petrov, F. A. Avetyan, D. C. Zhou, U.I. Tuleeva, V. S. Navotny, T. P. Trofimova, V. N. Lepetan, N. A. Marutyan, E. K. Kanygina, E. M. Friedlander, Sudhir Raniwala, L. E. Eremenko, W. Schulz, A. S. Gaitinov, N. Saidkhanov, H. H. Heckman, Z. Q. Weng, Evert Anders Stenlund, T. H. Burnett, Manjit Kaur, S. A. Krasnov, D. Skelding, J. T. Rhee, S. K. Badyal, L. N. Svechnikova, N. G. Peresadko, E. S. Basova, L. G. Sarkisova, Gautam Kaul, S. Garpman, P. J. Lindstrom, P. Lal, V. I. Bubnov, S. Mookerjee, G.S. Shabratova, S. Kachroo, S. K. Gupta, N. V. Maslennikova, I. S. Mittra, Bo Jakobsson, V. A. Plyushchev, S. Vokal, H. Nasrulaeva, G. I. Orlova, M. I. Tretyakova, V. R. Sarkisyan, P. Y. Zheng, Renu Arora, M. I. Adamovich, H. Huang, S. Lokanathan, N. P. Andreeva, V. S. Bhatia, L. S. Liu, V. G. Larionova, M. M. Chernyavski, R. J. Wilkes, S. G. Gerassimov, X. Cai, S. C. Strausz, L. K. Mangotra, S. I. Zhochova, K. B. Bhalla, S. B. Luo, Rashmi Raniwala, I. Otterlund, H. S. Palsania, B. Singh, J. F. Sun, N. K. Rao, S. H. Nasyrov, Z. V. Anson, C. Mueller, J. J. Lord, E. R. Ganssauge, J. Grote, S. P. Kharlamov, T. Koss, V. G. Bogdanov, M. Karabova, W. Y. Qian, and G. S. Kalyachkina

Subjects
Combinatorics, Physics, Nuclear and High Energy Physics
Abstract

M.I. Adamovich a, M.M. Aggarwal b, Y.A. Alexandrov a, N.P. Andreeva c, Z.V. Anson c, R. Arora b, F.A. Avetyan d, S.K. Badyal e, E. Basova f, K.B. Bhalla g, A. Bhasin e, V.S. Bhatia b, V.G. Bogdanov h, V.I. Bubnov c, T.H. Burnett i, X. Cai J, I.Y. Chasnikov c, L.P. Chernova k, M.M. Chernyavski a, B. Dressel ~, G.Z. Eligbaeva c, L.E. Eremenko ~, E.M. Friedlander m, A.S. Gaitinov ~, E.R. Ganssauge ~, S. Garpman ", S.G. Gerassimov a, j. Grote i, K.G. Gulamov k, S.K. Gupta g, V. Gupta e, H.H. Heckrnan ~, H. Huang J, B. Jakobsson ", B. Judek o, S. Kachroo e, F.G. Kadyrov k, G.S. Kalyachkina c, E.K. Kanygina ~, M. Karabova P, G.L. Kaul e, M. Kaur b, S.P. Kharlamov a, T. Koss i, S.A. Krasnov P, V. Kumar g, P. Lal g, V.G. Larionova a, V.N. Lepetan ~, P.J. Lindstrom m, L.S. Liu J, S. Lokanathan g, J. Lord i, N.S. Lukicheva k, S.B. Luo q, L.K. Mangotra e, N.A. Marutyan d, N.V. Maslennikova ", I.S. Mittra b, S. Mookerjee g, C. Mueller ~, H. Nasrulaeva f, S.H. Nasyrov f, V.S. Navotny k, G.I. Orlova a, I. Otterlund n, H.S. Palsania g, N.G. Peresadko a, N.V. Petrov f, V.A. Plyushchev h, W.Y. Qian J, R. Raniwala g, S. Raniwala g, N.K. Rao ~, V.M. Rappoport a, J.T. Rhee ~, N. Saidkhanov k, N.A. Salmanova ~, L.G. Sarkisova d, V.R. Sarkisyan d, W. Schulz ~, G.S. Shabratova P, T.I. Shakhova ~, B. Singh b, D. Skelding i, K. SSderstrSm ", Z.I. Solovjeva h, E. Stenlund n, S.C. Strausz i, J.F. Sun r, L.N. Svechnikova k, K.D. Tolstov P, M.I. Tretyakova a, T.P. Trofimova r, U. Tuleeva r, S. Vokal P, H.Q. Wang J, Z.Q. Weng r, R.J. Wilkes i, G.F. Xu s, D.H. Zhang q, P.Y. Zheng s, S.I. Zhochova k, D.C. Zhou J and J.C. Zhou J

Published
1991
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27. Slow, target associated particles produced in ultrarelativistic heavy-ion interactions

Author

F. G. Kadyrov, Z. I. Solovjeva, T. I. Shakhova, D. Skelding, J. T. Rhee, H. Huang, M. I. Tretyakova, L. N. Svechnikova, N. A. Salmanova, S. K. Badyal, X. Cai, N. G. Peresadko, E. S. Basova, K. G. Gulamov, S. Lokanathan, Manjit Kaur, V. I. Bubnov, V. M. Rappoport, P. J. Lindstrom, S. Mookerjee, V. Kumar, J. J. Lord, N. V. Petrov, J. Grote, S. A. Krasnov, G. Z. Eligbaeva, T. Koss, Gautam Kaul, S. C. Strausz, F. A. Avetyan, A. S. Gaitinov, E. K. Kanygina, L. K. Mangotra, L. G. Sarkisova, V. A. Plyushchev, M. Karabova, L. E. Eremenko, S. P. Kharlamov, W. Schulz, L. P. Chernova, Bo Jakobsson, S. Vokal, P. Lal, V. G. Bogdanov, C. Mueller, D. C. Zhou, H. Q. Wang, V. R. Sarkisyan, S. B. Luo, D. H. Zhang, W. Y. Qian, T. H. Burnett, S. Garpman, I. Y. Chasnikov, Anju Bhasin, N. Saidkhanov, Y. A. Alexandrov, N. A. Marutyan, Renu Arora, N. P. Andreeva, Z. Q. Weng, G. S. Kalyachkina, N. V. Maslennikova, G. F. Xu, Evert Anders Stenlund, U.I. Tuleeva, S. G. Gerassimov, T. P. Trofimova, V. N. Lepetan, M. M. Chernyavsky, Madan M. Aggarwal, S. I. Zhokhova, V. S. Bhatia, E. R. Ganssauge, M. I. Adamovich, L. S. Liu, V. G. Larionova, V. S. Navotny, Z. V. Anson, I. S. Mittra, K. B. Bhalla, S. Kachroo, K. Söderström, B. Judek, N. S. Lukicheva, E. M. Friedlander, Sudhir Raniwala, Rashmi Raniwala, B. Singh, N. K. Rao, P. Y. Zheng, R. J. Wilkes, S. K. Gupta, G.S. Shabratova, H. Nasrulaeva, G. I. Orlova, Vivek K. Gupta, I. Otterlund, B. Dressel, K. D. Tolstov, H. S. Palsania, J. F. Sun, S. H. Nasyrov, and H. H. Heckman

Subjects
Physics, Nuclear and High Energy Physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Charged particle, Nuclear physics, medicine.anatomical_structure, medicine, Heavy ion, Nuclear emulsion, Atomic physics, Nuclear Experiment, Nucleus
Abstract

The slow, target associated particles produced in ultrarelativistic heavy-ion interactions are a quantitative probe of the cascading processes in the spectator parts of the target nucleus. These processes are directly influenced by the proper timescale for the formation of hadronic matter. In this letter we show experimental data on singly and multiply charged particles, with velocities smaller than 0.7 c , produced in ultrarelativistic heavy-ion interactions in nuclear emulsion.

Published
1991
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28. STOCHASTIC EMISSION OF PARTICLES IN ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS

Author

S. Mookerjee, S. Kachroo, N. G. Peresadko, E. S. Basova, L. K. Mangotra, F. G. Kadyrov, Z. I. Solovjeva, S. I. Zhochova, T. I. Shakhova, Sudhir Raniwala, N. V. Petrov, H. Nasrulaeva, G. I. Orlova, Gautam Kaul, I. Otterlund, Rashmi Raniwala, K. Söderström, M. M. Chernyavski, T. H. Burnett, D. Skelding, Madan M. Aggarwal, K. G. Gulamov, F. A. Avetyan, B. Singh, J. T. Rhee, S. P. Kharlamov, Z. V. Anson, V. G. Bogdanov, N. K. Rao, T. P. Trofimova, V. Kumar, V. S. Navotny, P. J. Lindstrom, V. A. Plyushchev, S. Vokal, V. M. Rappoport, H. Huang, E. K. Kanygina, L. N. Svechnikova, I. S. Mittra, U.I. Tuleeva, N. A. Marutyan, Renu Arora, H. S. Palsania, L. E. Eremenko, L. P. Chernova, X. Cai, S. Garpman, E. R. Ganssauge, V. S. Bhatia, K. B. Bhalla, L. S. Liu, V. G. Larionova, P. Y. Zheng, Vivek K. Gupta, G. Z. Eligbaeva, W. Schulz, N. A. Salmanova, Bo Jakobsson, Manjit Kaur, N. P. Andreeva, B. Dressel, K. D. Tolstov, V. R. Sarkisyan, H. H. Heckman, M. I. Adamovich, S. G. Gerassimov, P. Lal, S. A. Krasnov, I. Y. Chasnikov, Y. A. Alexandrov, Anju Bhasin, G. F. Xu, N. Saidkhanov, A. S. Gaitinov, R. J. Wilkes, S. K. Badyal, B. Judek, E. Stenlund, V. N. Lepetan, Z. Q. Weng, Dong-Hai Zhang, N. S. Lukicheva, J. F. Sun, E. M. Friedlander, L. G. Sarkisova, S. H. Nasyrov, S. B. Luo, S. Lokanathan, D. C. Zhou, N. V. Maslennikova, C. Mueller, J. C. Zhou, S. C. Strausz, M. L. Tretyakova, G. S. Kalyachina, S. K. Gupta, G.S. Shabratova, J. J. Lord, J. Grote, T. Koss, M. Karabova, H. Q. Wang, W. Y. Qian, and V. I. Bubnov

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), Particle number, Elliptic flow, General Physics and Astronomy, Astronomy and Astrophysics, Heavy ion, Relativistic particle
Abstract

In this letter we show that most of the fluctuations in particle densities observed in relativistic heavy-ion collisions are consistent with stochastic emission, i.e., most of the correlations between produced particles are washed out due to the vast number of particles in the environment. We further explore the general trends by investigating different systems, energies and centrality cuts. Comparisons with the Fritiof model show that string fragmentation gives results similar to the data.

Published
1991
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29. Clustering in light nuclei in fragmentation above 1 A GeV

Author

G. I. Orlova, I. Tsakov, N. A. Kachalova, V. G. Larionova, A. Vokalova, V. Bradnova, L. A. Goncharova, A. A. Moiseenko, P. I. Zarubin, T. V. Shchedrina, V. V. Rusakova, S. Vokal, A. Sh. Gaitinov, V. R. Sarkisyan, Maria Haiduc, D. A. Artemenkov, Alexander Kovalenko, N. G. Peresadko, Natalia Polukhina, E. Stan, N. P. Andreeva, M. M. Chernyavsky, P. A. Rukoyatkin, Alexander Malakhov, R. Stanoeva, S. G. Gerasimov, S. P. Kharlamov, and I. G. Zarubina

Subjects
Physics, Nuclear and High Energy Physics, Light nucleus, Nuclear Theory, FOS: Physical sciences, Nuclear physics, Nuclear track, Nuclear astrophysics, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Invariant (mathematics), Nucleon, Nuclear Experiment, Relative energy
Abstract

The relativistic invariant approach is applied to analyzing the 3.3 A GeV $^{22}$Ne fragmentation in a nuclear track emulsion. New results on few-body dissociations have been obtained from the emulsion exposures to 2.1 A GeV $^{14}$N and 1.2 A GeV $^{9}$Be nuclei. It can be asserted that the use of the invariant approach is an effective means of obtaining conclusions about the behavior of systems involving a few He nuclei at a relative energy close to 1 MeV per nucleon. The first observations of fragmentation of 1.2 A GeV $^{8}$B and $^{9}$C nuclei in emulsion are described. The presented results allow one to justify the development of few-body aspects of nuclear astrophysics., 7 pages, 8 figures, 3 tables, Nuclear Physics in Astrophysics-2, 16-20 May, 2005 (ATOMKI), Debrecen, Hungary

Published
2006

30. Linear and nonlinear aspects of relativistic heavy ion interactions from EMU01 results

Author

G. S. Kalyachkina, V. G. Larinova, I. S. Mittra, D. C. Zhou, M. I. Adamovich, K. Söderström, L. K. Mangotra, F. G. Kadyrov, N. P. Andreeva, H. S. Palsania, E. Stenlund, J. F. Sun, E. R. Ganssauge, S. G. Gerassimov, T. I. Shakhova, P. Lal, V. A. Plyushchev, S. Vokal, Anju Bhasin, P. Y. Zheng, Joakim Nystrand, N. Saidkhanov, S. H. Nasyrov, Renu Arora, S. C. Strausz, T. P. Trofimova, N. G. Peresadko, E. S. Basova, H. Nasrulaeva, M. Karabova, V. S. Bhatia, H. Q. Wang, L. S. Liu, D. Skelding, W. Y. Qian, J. T. Rhee, G. I. Orlova, S. Kachroo, Z. Q. Weng, A. S. Gaitinov, N. A. Marutyan, Gautam Kaul, S. B. Luo, N. V. Maslennikova, H. Huang, I. Otterlund, L. G. Sarkisova, S. Mookerjee, J. J. Lord, S. K. Gupta, G.S. Shabratova, J. Grote, N. A. Salmanova, Rashmi Raniwala, S. P. Kharlamov, T. Koss, S. I. Zhokhova, V. G. Bogdanov, Z.V. Anzon, L. P. Chernova, B. Judek, M. I. Tretyakova, M. M. Chernyavsky, I. Y. Chasnikov, X. Cai, H. H. Heckman, E. K. Kanygina, N. S. Lukicheva, U.I. Tuleeva, Y. A. Alexandrov, N. V. Petrov, S. Garpman, Z. I. Solovieva, F. A. Avetyan, S. K. Badyal, N. K. Rao, S. Lokanatan, V. I. Bobnov, S. A. Krasnov, K. D. Tolstov, T. H. Burnett, J. Ravina, Sudhir Raniwala, G. F. Xu, R. J. Wilkes, V. N. Lepetan, L. E. Eremenko, Bo Jakobsson, V. R. Sarkisyan, K. B. Bhalla, Madan M. Aggarwal, V. S. Navotny, L. N. Svechnikova, V. M. Rappoport, Dong-Hai Zhang, K. G. Gulamov, V. Kumar, and G. Z. Eligbaeva

Subjects
Physics, Nuclear reaction, Physics::Instrumentation and Detectors, Detector, Fractal dimension, law.invention, Nonlinear system, Fractal, law, Intermittency, Multiplicity (chemistry), Atomic physics, Nuclear Experiment, Nucleon
Abstract

The recent status of the EMU01 experiment where nuclear emulsions are used as both target/detector material for horizontally exposed stacks and as detector for vertically exposed chamber plates is discussed. An investigation of the behaviour in the number of produced particles per participating nucleon reveal weak nonlinear effects for the most central collisions. Intermittency index can be obtained from the density distributions for S+Au and S+Ag interactions which corresponds to fractal dimensions somewhat smaller than unity.

Published
1993
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31. Fragmentation of22Ne in emulsion at 4.1A GeV/c

Author

Maria Haiduc, Ts.I. Shakhova, A. Sh. Gaitinov, D. Tuvdendorzh, V. G. Bogdanov, G. I. Orlova, V M Krishchyan, S G Bogdanov, V Topor, M A Marutyan, Z. I. Solovieva, M. I. Adamovich, L G Sarkisova, N. V. Maslennikova, M. Totova, V. I. Ostroumov, K. D. Tolstov, F. A. Avetyan, G. Zh. Eligbaeva, J. A. Salomov, L Sardamba, S. P. Kharlamov, E. Siles, Z.V. Anzon, R. Togoo, V. I. Bubnov, M. I. Tretyakova, N. A. Salmanova, G S Kalyachkina, I.Ya. Chasnikov, S.A. Krasnov, V. A. Leskin, S. Vokal, V. G. Larionova, A Y Likhachev, L.E. Eremenko, M M Chernyavaski, V A Plyuschev, B. B. Simonov, A.V. Belousov, M. Karabova, M. Šumbera, V. R. Sarkisyan, E. K. Kanygina, V.A. Antonchik, N. P. Andreeva, A. El-Naghy, M Gitsok, N I Kostanashvili, and F. G. Lepekhin

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Single process, Fragmentation (mass spectrometry), Projectile, Yield (chemistry), Emulsion, General Physics and Astronomy, Charge density, Charge (physics), Nuclear Experiment
Abstract

Charge distributions of projectile fragments produced in the interactions of 22Ne beams with emulsion at 4.1A GeV/c have been studied. Correlations between projectile and target fragments and among projectile fragments are presented. The change of charge yield distribution with the violence of the collision has been shown. The present analysis contradicts theoretical calculations describing the inclusive charge yield distribution of fragments by a single process.

Published
1988
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32. Bounce-off in (197)Au induced collisions with Ag(Br) nuclei at 11.6 A GeV/c

Author

E. Stenlund, L. N. Svechnikova, L. P. Chernova, N. A. Salmanova, D. Skelding, V. I. Bubnov, M. Karabova, E. K. Kanygina, J. T. Rhee, Madan M. Aggarwal, W. Y. Qian, V. S. Navotny, R. Sethi, K. El Chenawi, L. E. Eremenko, Y.X. Li, L.Z. Yu, L. G. Sarkisova, V. V. Rusakova, Z.B. Yin, I. Y. Chasnikov, I. Otterlund, D. Hasegan, Y. A. Alexandrov, Bo Jakobsson, K. Söderström, V. R. Sarkisyan, Mihaela Gheata, I. S. Mittra, S. B. Luo, C.I. Shakhova, Joakim Nystrand, A.M. Tawfik, L.S. Peak, S.Q. Feng, Anju Bhasin, J. J. Lord, S. K. Badyal, Z.G. Liu, R. J. Wilkes, N. Saidkhanov, Dong-Hai Zhang, C.G. Lee, B. Singh, J. Grote, B.P. Tursunov, N. G. Peresadko, S.Z. Nasyrov, L. K. Mangotra, K. G. Gulamov, N. V. Petrov, V. Kumar, G. S. Kalyachkina, G. Z. Eligbaeva, V. A. Plyushchev, S. Vokal, L. Just, F. A. Avetyan, S. Dhamija, U.I. Tuleeva, H.S. Wang, S. Garpman, Y.A. Mashkov, X.R. Wang, V. S. Bhatia, L. S. Liu, V. G. Larionova, V. Vashisht, Maria Haiduc, A. Pavukova, N. P. Andreeva, S. G. Gerassimov, Alexander Kovalenko, A. S. Gaitinov, E. Basova, G.M. Chen, T. P. Trofimova, Z. Q. Weng, Y. Lu, S. P. Kharlamov, V. G. Bogdanov, U. Henjes, Z.V. Anzon, Y.M. Qin, M. I. Tretyakova, X. Cai, I.C. Kim, M. M. Chernyavsky, N. A. Marutyan, M. Roeper, N. V. Maslennikova, S. I. Zhokhova, P. Y. Zheng, Rashmi Raniwala, H.Q. Wang, A.M. Seitimbetov, N. S. Lukicheva, N. K. Rao, S. Lokanatan, A.K. Musaeva, C.B. Yang, D. Felea, S.A. Krasnov, M. I. Adamovich, I. Manhas, K. B. Bhalla, R. Amirikas, Janka Vrlakova, D. C. Zhou, Andrei Gheata, A. M. Bakich, E. R. Ganssauge, V. Bradnova, G. I. Orlova, Vivek K. Gupta, and Shiv K. Gupta

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Angular distribution, Physics::Instrumentation and Detectors, Projectile, Angular correlation, Nuclear Theory, Hadron, Nuclear fusion, Particle flow, Atomic physics, Nuclear Experiment
Abstract

Using emulsion detectors a transverse-momentum analysis of projectile fragments has been performed in Au induced nuclear interactions at 11.6 A GeV/c. Evidence for collective flow of the projectile fragments has been obtained. Angular distributions of the principal vectors of projectile and target fragments have shown strong azimuthal correlation.

33. He production in 158 A GeV/c Pb on Pb interactions

Author

N. V. Petrov, S. Garpman, S. Lokanathan, U.I. Tuleeva, S.Z. Nasyrov, G. S. Kalyachkina, Y. Lu, M. I. Tretyakova, V. A. Plyushchev, S. Vokal, X. Cai, K. Söderström, L. P. Chernova, Alexander Kovalenko, E. Stenlund, V. S. Bhatia, B.P. Tursunov, L. N. Svechnikova, L. Just, L. S. Liu, V. G. Larionova, T. P. Trofimova, M. I. Adamovich, A. Pavukova, Joakim Nystrand, Dong-Hai Zhang, V. Vashist, M. Roeper, C.G. Lee, Mihaela Gheata, L. G. Sarkisova, E. K. Kanygina, I. Y. Chasnikov, K. G. Gulamov, V. Kumar, N. A. Salmanova, D. Skelding, S. P. Kharlamov, V. I. Bubnov, V. G. Bogdanov, U. Henjes, L.S. Peak, D. Hasegan, J. T. Rhee, M. M. Chernyavski, Y. A. Alexandrov, D. Felea, G. Z. Eligbaeva, N. V. Maslennikova, Z.V. Anzon, Y.M. Qin, N. A. Marutyan, Rashmi Raniwala, Y. C. Kim, V. V. Rusakova, N. G. Peresadko, E. S. Basova, Z.B. Yin, Shi-kun Wang, N. S. Lukicheva, S. W. Feng, G.M. Chen, A. S. Gaitinov, R. J. Wilkes, B. Singh, L. K. Mangotra, Anju Bhasin, S. I. Zhokhova, N. Saidkhanov, S. B. Luo, I. S. Mittra, S. K. Badyal, A.M. Tawfik, Z.G. Liu, X.R. Wang, A.M. Seitimbetov, N. P. Andreeva, C.I. Shakhova, I. Manhas, S. G. Gerassimov, N. K. Rao, Z. Q. Weng, K. B. Bhalla, R. Amirikas, G. I. Orlova, L. E. Eremenko, Bo Jakobsson, D. C. Zhou, V. Bradnova, M. Tothova, V. R. Sarkisyan, R. Sethi, Andrei Gheata, A. M. Bakich, F. A. Avetyan, P. Y. Zheng, Y.X. Li, Vivek K. Gupta, Maria Haiduc, Shiv K. Gupta, E. R. Ganssauge, Madan M. Aggarwal, V. S. Navotny, K. El Chenawi, Janka Vrlakova, I. Otterlund, A.K. Musaeva, C.B. Yang, J. J. Lord, S.A. Krasnov, J. Grote, M. Karabova, H. Q. Wang, W. Y. Qian, L.Z. Yu, T. Svensson, and S. Dhamija

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), Total angular momentum quantum number, Transverse momentum, Angular momentum coupling, Rotational transition, Atomic physics, Nuclear Experiment, Scaling, Spectral line, Fermi Gamma-ray Space Telescope
Abstract

Angular distributions of projectile-associated He fragments from Pb induced reactions on stationary Pb target at 158 A GeV/c incident momentum are reported. The precision of the angular measurements was about ±0.01 mrad. Two emission components are appearing in the projected angular spectra of the He particles, one representing fragmentation at Fermi momentum scale, while the other one exhibits large transverse momentum transfer. By scaling with the incident momentum the angular spectra of He particles are compared with earlier reported measurements of Au on Au interactions at 11.6 A GeV/c. The p T spectrum of the He particles appears the same for the two cases.

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