Author: "Y. A. Alexandrov" - Searchworks@Jio Institute Digital Library Search Results

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53 results on '"Y. A. Alexandrov"'

1. A measurement of $\lambda$ polarization in inclusive production by $\Sigma^{-}$ of 340 GeV/c in C and Cu targets

Author: L. Rossi, M. Rey-Campagnolle, U. Dersch, E. Vesin, K. Martens, K. Vorwalter, S. G. Gerassimov, M. I. Adamovich, M. Buenerd, H. Rudolph, T. Haller, Bogdan Povh, W. Bruckner, E. Wittmann, P. Martin, W. Beusch, T. Walcher, J. Pochodzalla, M. Beck, P. Grafstrom, E. Hubbard, D. Barberis, R. Werding, S. Masciocchi, R. Michaels, G. Rosner, S. Brons, Mikhail Zavertyaev, O. Thilmann, Z. Ren, G. Walder, Jürgen Engelfried, K. Konigsmann, J. Chauvin, A. Simon, M. Boss, F. Charignon, D. Newbold, C. Newsom, C. Busch, N. Keller, V. Smith, Y. A. Alexandrov, A. Fournier, C. Scheel, R. Ransome, L. Schmitt, U. Muller, I. Konorov, H. W. Siebert, S. Paul, F. Dropmann, S. P. Baranov, M. Heidrich, R. B. Hurst, C. Berat, E. A. Chudakovc, I. K. Potashnikova, A. Trombini, B. Volkemer, F. Faller, C. Buscher, M. Godbersen, H. Neeb, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), WA89, and Publica
Subjects: Physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Hyperon, Sigma, Atomic physics, 010306 general physics, Polarization (waves), Lambda, 01 natural sciences, Engineering (miscellaneous)
Abstract: We have measured the polarization of Λ\LambdaΛ hyperons produced inclusively by a Σ−\Sigma^-Σ− beam of 340 GeV/c momentum in nuclear targets. From a sample of 9.5 millions of identified Λ\LambdaΛ decays, polarizations were determined in the range xF>0.1x_F \gt 0.1xF>0.1 and pt≤1.6p_t\leq 1.6pt≤1.6 GeV/c . The polarization w.r.t. the production normal is mainly positive for xF≥0.3x_F \geq 0.3xF≥0.3. At fixed values of xFx_FxF, it increases with ptp_tpt to a maximum between pt=0.5p_t = 0.5pt=0.5 and pt=1p_t = 1pt=1 GeV/c , and then decreases to zero or even negative values, in sharp contrast to the plateau above pt=1p_t = 1pt=1 GeV/c observed in inclusive Λ\LambdaΛ production by protons.
Published: 2004
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2. A study of $\Sigma^{\pm}$ , $\Sigma^{*\pm}$ and $\overline{\Sigma}^-_{1385}$ production in the hyperon beam experiment WA89 at CERN

Author: C. Berat, D. Barberis, Y. A. Alexandrov, B. Volkemer, J. Pochodzalla, U. Dersch, Mikhail Zavertyaev, C. Newsom, G. Walder, V. Smith, D. Newbold, J. Chauvin, S. P. Baranov, K. Vorwalter, S. G. Gerassimov, M. Heidrich, W. Beusch, U. Muller, P. Grafstrom, M. Godbersen, H. Neeb, I. K. Potashnikova, R. Werding, C. Büscher, N. Keller, O. Thilmann, A. Fournier, G. Rosner, T. Walcher, K. Martens, E. Wittmann, Bogdan Povh, C. Scheel, M. Rey-Campagnolle, L. Rossi, R. Michaels, M. Buenerd, M. I. Adamovich, R. B. Hurst, Z. Ren, A. Simon, S. Masciocchi, E. A. Chudakov, L. Schmitt, C. Busch, R. Ransome, P. Martin, S. Brons, W. Brückner, Jürgen Engelfried, E. Hubbard, S. Paul, F. Faller, H. W. Siebert, F. Dropmann, T. Haller, Marcus Beck, H. Rudolph, M. Boss, F. Charignon, A. Trombini, K. Königsmann, E. Vesin, and I. Konorov
Subjects: Physics, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, 0211 other engineering and technologies, Hyperon, Sigma, 02 engineering and technology, 01 natural sciences, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Neutron, Production (computer science), Nuclear Experiment, Engineering (miscellaneous), Beam (structure), 021101 geological & geomatics engineering
Abstract: We report on a measurement of the inclusive production cross sections for $\Sigma^{\pm}$, $\Sigma^{\pm}_{1385}$, $\Sigma^{\pm}_{1660}$ and $\overline{\Sigma}^-_{1385}$ in the CERN hyperon beam experiment WA89, using a $\Sigma^- / \pi^-$ beam of 345 GeV/c momentum and neutrons of 260 GeV/c mean momentum. A strong leading particle effect was observed for all negative $\Sigma$ and $\Sigma^*$. The results are compared with predictions from phenomenological models.
Published: 2001
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3. Surgical Treatment of Chiari I Malformation with or Without Syringomyelia

Author: Y. A. Alexandrov, S. N. Larionov, M. D. Blagodatsky, and A. I. Velm
Subjects: Adult, Male, medicine.medical_specialty, Neurology, Adolescent, Central nervous system disease, Chiari I malformation, medicine, Humans, Child, Retrospective Studies, Neuroradiology, medicine.diagnostic_test, business.industry, Laminectomy, Interventional radiology, Middle Aged, Decompression, Surgical, medicine.disease, Magnetic Resonance Imaging, Survival Analysis, Syringomyelia, Arnold-Chiari Malformation, Surgery, Treatment Outcome, Radiological weapon, Cervical Vertebrae, Female, Neurology (clinical), Neurosurgery, business, Craniotomy
Abstract: 102 patients with Chiari I malformation with or without syringomyelia underwent primary reconstructive operation at the craniocervical junction (CCJ). We present here the indications, methods of surgical management with clinical, radiological and operative findings. Here we present the results of a retrospective review. The authors discuss the possible ways of improvement in the results of “hindbrain related” syrngomyelia treatment.
Published: 1999
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4. 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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5. 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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6. Nuclear effect in higher-dimensional factorial moment analysis of the $^{16}$ O-, $^{32}$ S- and $^{197}$ Au-Em interaction data at 200, 60 and 11 A GeV/c

Author: Madan M. Aggarwal, G. F. Xu, R. J. Wilkes, L. Liang, N. A. Salmanova, V. S. Navotny, O. V. Levitskaya, K. Söderström, D. Hasegan, K. El Chenawi, I. S. Mittra, Anju Bhasin, Mihaela Gheata, A. Pavukova, N. Saidkhanov, C.I. Shakhova, R. Sethi, S. B. Luo, V. A. Plyushchev, J. J. Lord, S. Vokal, J. Grote, S. K. Gupta, Y.X. Li, L.S. Peak, Joakim Nystrand, F.A. Avetian, A. S. Gaitinov, Z. Q. Weng, N. V. Petrov, L. Just, K. G. Gulamov, M. Tothova, V. Kumar, S. Garpman, Z.R. Hu, V. S. Bhatia, L. S. Liu, V. G. Larionova, A.M. Tawfik, M. Karabova, H. Q. Wang, S.Q. Feng, C.G. Lee, K. B. Bhalla, R. Amirikas, Y. Lu, Vivek K. Gupta, L. N. Svechnikova, W. Y. Qian, V. Bradnova, X.R. Wang, S. P. Kharlamov, E. K. Kanygina, Rashmi Raniwala, L.Z. Yu, L. P. Chernova, Paul Nilsson, V. Vashisht, V. G. Bogdanov, Maria Haiduc, U.I. Tuleeva, N. P. Andreeva, V.I. Skorobogatova, F. G. Lepekhin, Y.M. Qin, D. Felea, I. Otterlund, M. Roeper, A.M. Seitimbetov, G.M. Chen, V.R. Sarkisian, Alexander Kovalenko, Bo Jakobsson, Y. C. Kim, N. S. Lukicheva, N. K. Rao, M. I. Tretyakova, D.M. Seliverstov, V. I. Bubnov, T. P. Trofimova, S.G. Gerasimov, Y. Deng, Dong-Hai Zhang, P. Y. Zheng, V. V. Rusakova, Z.B. Yin, N. G. Peresadko, E. S. Basova, X. Cai, I. Y. Chasnikov, Y. A. Alexandrov, G. I. Orlova, L. G. Sarkisova, Janka Vrlakova, A.K. Musaeva, S. K. Badyal, Z.G. Liu, C.B. Yang, S. A. Krasnov, E. Stenlund, Bhartendu K. Singh, B. B. Simonov, S.Z. Nasyrov, L. K. Mangotra, D. Skelding, J. T. Rhee, S. I. Zhokhova, Y.L. Yu, S. Lokanathan, D. C. Zhou, Andrei Gheata, A. M. Bakich, E. R. Ganssauge, M. I. Adamovich, Shi-kun Wang, N.A. Marutian, S. Dhamija, and M. M. Chernyavsky
Subjects: Nuclear physics, Physics, Moment (mathematics), Particle physics, Angular distribution, Physics and Astronomy (miscellaneous), Nuclear Theory, Emulsion, Rapidity, Nuclear Experiment, Particle Physics - Phenomenology, Factorial moment
Abstract: The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ^{16}O-, ^{32}S- and ^{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ~{16}O-, ~{32}S- and ~{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions. The anomalous behavior of 2-dimensional factorial moment in nucleus-nucleus collisions is studied in some detail using both mini-bias and central collision data of ^{16}O-, ^{32}S- and ^{197}Au-Em interactions from EMU01 experiment. The correct value for the effective Hurst exponent in the analysis of higher-dimensional factorial moment is found to be greater than unity, showing clearly the existence of superposition effect in nucleus-nucleus collisions.
Published: 1997
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7. 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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8. Charged particle multiplicities, densities and fluctuations in Pb+Pb interactions at 158 A GeV

Author: S. I. Zhokhova, R. J. Wilkes, S.Z. Nasyrov, Y.L. Yu, B. B. Simonov, M. Karabova, D. Hasegan, H. Q. Wang, A.M. Tawfik, R. Sethi, F. G. Lepekhin, L. P. Chernova, S. K. Badyal, Z.G. Liu, Dong-Hai Zhang, Paul Nilsson, I. Otterlund, E. Stenlund, I. Y. Chasnikov, A. S. Gaitinov, Y.X. Li, Y. A. Alexandrov, V. Vashisht, N. V. Petrov, S. Garpman, L. Liang, D. Skelding, Y. C. Kim, E. R. Ganssauge, B. Singh, J. T. Rhee, E. K. Kanygina, V. I. Bubnov, L. K. Mangotra, M. I. Adamovich, W. Y. Qian, L.Z. Yu, Rashmi Raniwala, N. G. Peresadko, E. S. Basova, N. S. Lukicheva, Maria Haiduc, S. B. Luo, K. Söderström, V.I. Skorobogatova, Bo Jakobsson, M. I. Tretyakova, Alexander Kovalenko, Janka Vrlakova, A.K. Musaeva, G.M. Chen, Shi-kun Wang, K. G. Gulamov, S.Q. Feng, J. J. Lord, V. Kumar, J. Grote, L. N. Svechnikova, X. Cai, L. Just, A.M. Seitimbetov, Joakim Nystrand, V. V. Rusakova, T. P. Trofimova, C.G. Lee, Z.B. Yin, V. A. Plyushchev, S. Vokal, N. K. Rao, C.B. Yang, S.A. Krasnov, X.R. Wang, D. C. Zhou, S. Dhamija, V. S. Bhatia, Andrei Gheata, A. M. Bakich, N. A. Salmanova, L. S. Liu, V. G. Larionova, S. Lokanathan, N. P. Andreeva, M. Tothova, Anju Bhasin, N. Saidkhanov, S. G. Gerassimov, K. B. Bhalla, M. M. Chernyavski, Madan M. Aggarwal, Mihaela Gheata, R. Amirikas, Z. Q. Weng, L.S. Peak, P. Y. Zheng, U.I. Tuleeva, I. S. Mittra, S. P. Kharlamov, C.I. Shakhova, Y.M. Qin, D. Felea, V. S. Navotny, O. V. Levitskaya, K. El Chenawi, Z.R. Hu, Y. Lu, D.M. Seliverstov, G. I. Orlova, Vivek K. Gupta, Shiv K. Gupta, V. Bradnova, and M. Roeper
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Charged particle
Abstract: Results on charged particle multiplicities, densities and fluctuations from central Pb+Pb interactions at 158 A GeV are presented and discussed.
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. Elastic properties of static charge-stabilized colloidal crystal with two-dimensional hexagonal lattice

Author: E V Gladkova, A A Batanova, A F Nizametdinov, A N Nagatkin, Y V Alexandrov, and Pavel Dyshlovenko
Subjects: History, Condensed matter physics, Chemistry, Lattice diffusion coefficient, Empty lattice approximation, Colloidal crystal, Computer Science Applications, Education, Crystal, Particle in a one-dimensional lattice, Crystallography, Lattice constant, Hexagonal lattice, Electric potential
Abstract: Two-dimensional charge-stabilized colloidal crystal with a hexagonal crystal lattice and constant electric potential on the particles is studied numerically. The properties of the crystal are described by the theory based on the Poisson-Boltzmann non-linear differential equation. The force constants and the equilibrium pressure in the crystals are calculated for a broad range of the lattice parameters. The numerical procedures of the force constant and pressure determination is briefly described. Elastic constants of the first and second order are also calculated on the base of the force constants to obtain information about the many-body effective interactions in the system. It was shown that the Cauchy relation between the elastic constants breaks down in the whole range of the lattice parameter especially at higher densities. This can be interpreted as an effect of the many-body effective interaction between the particles in the crystal.
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. 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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17. 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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18. 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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19. 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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20. 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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21. 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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22. 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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23. On the multiplicity fluctuations in relativistic heavy ion collisions

Author: J. J. Lord, J. Grote, D. Skelding, N. G. Peresadko, J. T. Rhee, I. Otterlund, J. F. Sun, P. J. Lindstrom, A. Gill, K. G. Gulamov, S. H. Nasyrov, F. G. Kadyrov, V. Kumar, L. P. Chernova, Madan M. Aggarwal, Gautam Kaul, K. B. Bhalla, M. M. Chernyavsky, S. Kachroo, S. P. Kharlamov, D. H. Zhang, B. Judek, N. S. Lukicheva, Renu Arora, S. Garpman, G. F. Xu, S. I. Gadzhieva, U. G. Gulyamov, V. S. Bhatia, L. S. Liu, Y. A. Alexandrov, V. G. Larionova, N. V. Petrov, C. Mueller, B. Dressel, I. S. Mittra, M. I. Adamovich, V. S. Navotny, H. Q. Wang, Anju Bhasin, W. Y. Qian, Z. O. Weng, Evert Anders Stenlund, W. Schulz, S. G. Gerassimov, S. Mookerjee, K. Söderström, L. N. Svechnikova, G. I. Orlova, N. V. Maslennikova, H. H. Heckman, M. I. Tretyakova, S. B. Luo, X. Cai, V. S. Shukla, T. H. Burnett, L. K. Mangotra, Manjit Kaur, P. Lal, J. C. Zhou, S. Lokanathan, D. C. Zhou, N. A. Salmanova, S. Hackel, Stefan Persson, E. R. Ganssauge, Rashmi Raniwala, B. Singh, N. K. Rao, E. M. Friedlander, Sudhir Raniwala, P. Y. Zheng, and R. J. Wilkes
Subjects: Nuclear reaction, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Dispersion relation, Hadron, Negative binomial distribution, Observable, Multiplicity (mathematics), Elementary particle, Nuclear Experiment, Ion
Abstract: In the present letter we discuss the general features of the multiplicity distributions in relativistic heavy ion collisions. It is shown that from simple statistical considerations it is possible to predict the dependence of the dispersions of multiplicity distributions on the average multiplicities in any given rapidty wwindow. The applicability of the negative binomial distribution to multiplicity distributions from collisions with heavy ions is discussed.
Published: 1990
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24. ON THE ENERGY AND MASS DEPENDENCE OF THE MULTIPLICITY IN RELATIVISTIC HEAVY-ION INTERACTIONS

Author: G. F. Xu, S. I. Gadzhieva, K. Söderström, R. A. Bondarenko, L. N. Svechnikova, D. C. Zhou, I. Otterlund, D. Skelding, J. T. Rhee, S. P. Kharlamov, P. J. Lindstrom, M. I. Adamovich, R. S. Storey, H. Kallies, N. V. Maslennikova, R. J. Wilkes, L. K. Mangotra, F. G. Kadyrov, B. Judek, N. S. Lukicheva, P. Lal, Anju Bhasin, S. Mookerjee, N. Saidkhanov, S. Kachroo, Madan M. Aggarwal, Renu Arora, E. M. Friedlander, N. A. Salmanova, V. S. Bhatia, S. Hackel, N. G. Peresadko, E. S. Basova, L. S. Liu, V. G. Larionova, H. H. Heckman, M. I. Tretyakova, Stefan Persson, N. V. Petrov, X. Cai, E. R. Ganssauge, V. S. Navotny, K. B. Bhalla, E. Stenlund, Manjit Kaur, H. Q. Wang, W. Y. Qian, Gautam Kaul, J. F. Sun, L. P. Chernova, S. Lokanathan, S. H. Nasyrov, S. Garpman, J. J. Lord, J. Grote, W. Schultz, Z. O. Weng, A. Gill, Y. A. Alexandrov, S. G. Gerassimov, J. C. Zhou, P. Y. Zheng, U. G. Gulyamov, T. P. Trofimova, C. Mueller, I. S. Mittra, Sudhir Raniwala, G. I. Orlova, V. S. Shukla, B. Dressel, Rashmi Raniwala, M. M. Chernyavsky, N. K. Rao, K. G. Gulamov, V. Kumar, T. H. Burnett, and Dong-Hai Zhang
Subjects: Physics, Nuclear and High Energy Physics, Nuclear Theory, General Physics and Astronomy, Binary number, Astronomy and Astrophysics, Multiplicity (mathematics), Relativistic particle, Nuclear physics, Heavy ion, Nuclear emulsion, Atomic physics, Nuclear Experiment, Nucleon
Abstract: The average multiplicities of singly charged relativistic particles in oxygen-induced interactions with a nuclear emulsion target are studied over the energy range 2.1–200 A GeV. A similar energy dependence as for proton-induced interactions is observed. Both the number of participating nucleons and the number of binary collisions are shown to be of importance for the particle production.
Published: 1990
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25. Target nucleus fragmentation in 16O+(Ag,Br) interactions at 200 A GeV

Author: M. M. Chernyavsky, V. Kumar, K. Söderström, R. A. Bondarenko, C. Mueller, S. Hackel, K. B. Bhalla, U. G. Gulyamov, J. J. Lord, Stefan Persson, S. Lokanathan, J. Grote, L. P. Chernova, S. Kachroo, E. R. Ganssauge, Sudhir Raniwala, M. I. Adamovich, H. Q. Wang, P. J. Lindstrom, L. K. Mangotra, F. G. Kadyrov, S. Mookerjee, B. Judek, W. Y. Qian, A. Gill, Renu Arora, N. S. Lukicheva, I. S. Mittra, V. S. Bhatia, P. Y. Zheng, P. Lal, N. A. Salmanova, L. S. Liu, V. G. Larionova, H. H. Heckman, J. C. Zhou, R. S. Storey, H. Kallies, N. V. Maslennikova, I. Otterlund, D. Skelding, J. T. Rhee, D. C. Zhou, B. Dressel, E. Stenlund, Rashmi Raniwala, W. Schultz, J. F. Sun, L. N. Svechnikova, S. H. Nasyrov, N. K. Rao, Y. A. Alexandrov, G. F. Xu, S. I. Gadzhieva, R. J. Wilkes, N. V. Petrov, Madan M. Aggarwal, T. P. Trofimova, Dong-Hai Zhang, V. S. Navotny, G. I. Orlova, Z. O. Weng, T. H. Burnett, V. S. Shukla, E. M. Friedlander, Anju Bhasin, N. Saidkhanov, Manjit Kaur, N. G. Peresadko, E. S. Basova, Gautam Kaul, S. Garpman, S. G. Gerassimov, M. I. Tretyakova, X. Cai, S. P. Kharlamov, and K. G. Gulamov
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Cascade, Multiplicity (chemistry), Nuclear Experiment, Particle Physics - Experiment, Nucleus fragmentation
Abstract: The multiplicity distributions of low-energetic target-associated particles from 200 A GeV oxygen-induced interactions with emulsion nuclei are presented. The experimental distributions are compared with distributions obtained using the Ranft and Fritiof simulation codes. It is found that the intra-nuclear cascade plays an important role in ion-induced interactions, similar to what is the case for hadron-induced interactions.
Published: 1990
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26. Limiting Fragmentation, Scaling and Substructual Dependence of Multiparticle Production in High Energy Heavy Ion Reactions

Author: EMUO1 Collaboration, I Otterlund, M I Adamovich, M M Aggarwal, N P Andreeva, Z V Anson, Z V Ameeva, R Arora, Y A Alexandrov, S A Azimov, E Basova, K B Bhalla, A Bhasin, V S Bhatia, V I Bubnov, R A Bondarenko, T H Burnett, X Cai, I Y Chasnicov, L P Chernova, M M Chernyavsky, B Dressel, L E Eremenko, G Z Eligbaeva, E M Friedlander, S I Gadzhieva, A S Gaitinov, E R Ganssauge, S Garpman, S G Gerassimov, A Gill, J Grote, K G Gulamov, U G Gulyamov, S Hackel, H H Heckman, B Judek, S Kachroo, F G Kadyrov, H Kallies, G S Kalyachkina, E K Kanygina, G L Kaul, M Kaur, S P Kharlamov, T Koss, V Kumar, P Lal, V G Larionova, P J Lindstrom, L S Liu, S Lokanathan, J Lord, N S Lukicheva, L K Mangotra, N V Maslennikova, I S Mittra, S Mookerjee, C Mueller, S H Nasyrov, V S Navotny, G I Orlova, N G Peresadko, S Persson, N V Petrov, W Y Qian, R Raniwala, S Raniwala, N K Rao, J T Rhee, N Saidkhanov, N A Salmanova, T I Shakhova, W Schultz, V S Shukla, D Skelding, K Soderstrom, E Stenlund, R S Storey, S Strausz, J F Sun, L N Svechnikova, M I Tretyakova, T P Trofimova, H Q Wang, Z O Weng, R J Wilkes, G F Xu, D H Zhang, P Y Zheng, D C Zhou, and J C Zhou
Subjects: Physics, High energy, Astrophysics::High Energy Astrophysical Phenomena, Limiting, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Nuclear physics, Low energy, Fragmentation (mass spectrometry), Emulsion, High Energy Physics::Experiment, Heavy ion, Multiplicity (chemistry), Nuclear Experiment, Scaling, Mathematical Physics
Abstract: We report on recent results obtained by the EMUO1 collaboration from studies of 16O + emulsion, at 14.6, 60 and 200 A GeV, and 32S + emulsion and 32S + Au interactions at 200 A GeV. Shower-particle production in oxygen-induced interactions are studied over the energy range 2.1-200 A GeV. Scaling and limiting fragmentation are observed. Multiplicity and angular distributions of low energy target-associated particles are presented and compared with distributions obtained using the Ranft and the Fritiof simulation codes.
Published: 1990
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27. Search for the pentaquark candidateΘ(1540)+in the hyperon beam experiment WA89

Author: J. Pochodzalla, V. Smith, W. Bruckner, C. Newsom, G. Rosner, H. W. Siebert, T. Walcher, R. Ransome, U. Muller, M. Boss, M. Beck, G. Walder, C. Busch, L. Schmitt, H. Rudolph, N. Keller, P. Martin, K. Konigsmann, E. Vesin, Jürgen Engelfried, E. A. Chudakovc, I. Konorov, M. Godbersen, H. Neeb, L. Rossi, D. Barberis, R. Werding, F. Faller, J. Chauvin, K. Vorwalter, U. Dersch, M. Rey-Campagnolle, I. K. Potashnikova, E. Wittmann, Bogdan Povh, K. Martens, R. B. Hurst, B. Volkemer, W. Beusch, F. Charignon, E. Hubbard, C. Berat, R. Michaels, O. Thilmann, M. Buenerd, D. Newbold, Y. A. Alexandrov, A. Trombini, M. I. Adamovich, C. Scheel, A. Fournier, M. Heidrich, C. Buscher, S. G. Gerassimov, S. Masciocchi, T. Haller, Z. Ren, S. Brons, A. Simon, F. Dropmann, S. P. Baranov, S. Paul, Mikhail Zavertyaev, and P. Grafstrom
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Hyperon, Resonance, 01 natural sciences, Pentaquark, 0103 physical sciences, Production (computer science), 010306 general physics, Nucleon, Beam (structure)
Abstract: We report on a high-statistics search for the {theta}(1540){sup +} resonance in {sigma}{sup -}-nucleus collisions at 340 GeV/c. No evidence for this resonance was found in our data sample which contains 13 million K{sub s}{sup 0}{yields}{pi}{sup +}{pi}{sup -} decays above background. For the decay channel {theta}{sup +}{yields}K{sub s}{sup 0}p and the kinematic range x{sub F}> 0.05, we find the production cross section to be BR({theta}{sup +}{yields}K{sub s}{sup 0}p){sigma}{sub 0}
Published: 2005
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28. Hypothetically virtual approaches to the analysis of the mechanisms of neuropsychic activity

Author: Y. A. Alexandrovsky
Subjects: reflex mechanism, neuro-psychic activity, evolutionary association, functional memory, Psychiatry, RC435-571
Abstract: The main ideas of the book «the Call and all the rest» [1] and of the separately published «the Unexplored and Unexamined» chapters [2] on non-standard and not always well grounded approaches to the understanding of neuro-mental activity. «Staged» questions are considered and their solution cannot be completed without careful research study. It is proposed to use the following hypothetically formulated postulates:1. Life processes that provide neuropsychic activity cannot be explained only by traditionally understood reflex mechanisms.2. Any living structure has the biological ability not only to passively absorb information, but also to actively seek it out.3. The conductor system uses muscle energy in every reflex action. Higher mental activity is formed by other energetic, both exogenous and endogenous flows.4. Conscious (and perhaps not conscious) life events and behavioral experiences do not disappear from the functional «memory library».5. Evolutionary unification, despite situational confrontations, is a vital necessity of the interaction process. Its neblinensis parts fall out of the further development cycle. This pattern determines the general theory of unification and development for biology and sociology.
Published: 2020
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29. A subset of cingulate cortical neurones is specifically activated during alcohol-acquisition behaviour

Author: Y I, Alexandrov, Y V, Grinchenko, D G, Shevchenko, R G, Averkin, V N, Matz, S, Laukka, and A V, Korpusova
Subjects: Electrophysiology, Male, Neurons, Alcoholism, Alcohol Drinking, Behavior, Animal, Memory, Animals, Feeding Behavior, Rabbits, Euphoria, Adaptation, Physiological, Gyrus Cinguli
Abstract: A new need is associated with the formation of behaviour directed at its satisfaction. In chronically ethanol-treated rabbits a bodily need develops to acquire and consume alcohol. The present study examined the firing properties of single neurones in the cingulate (limbic) cortex of chronically ethanol-treated rabbits. The main questions of this study were: are there neurones in the cingulate cortex which specifically increase their firing during alcohol-acquisition behaviour (AAB)? What is the relationship between the neuronal mechanisms of pre-existing and newly formed behaviour? Adult rabbits were taught to acquire food by pressing pedals. After 9 months of ethanol treatment, the same rabbits were taught to acquire ethanol (15% solution in a 0.5-mL capsule) by means of the same instrumentalActivity of the 118 neurones was recorded from the cingulate cortex. The comparison of activity of each neurone in AAB and food-acquisition behaviour (FAB) enabled us to reveal that their subservings overleap substantially but not completely: 41% of 'common neurones' involved in the subserving of both FAB and AAB as well as 5% of 'alcohol-neurones' (alcohol-acquisition specific cells) were found. We think of the latter neurones as units that were specialized during the forming of alcohol-seeking behaviour. Thus, present experiments help us not only to answer the above questions but also to provide an additional insight into the nature of similarity between neuronal mechanisms of long-term memory and long-lived modifications resulting from repeated drug exposure.
Published: 2001

30. A measurement of K$^{*\pm}$ production in the hyperon beam experiment at CERN

Author: U. Muller, L. Schmitt, Y. A. Alexandrov, C. Berat, J. Chauvin, F. Dropmann, H. W. Siebert, M. Rey-Campagnolle, R. Ransome, F. Charignon, C. Busch, I. Konorov, M. Godbersen, K. Martens, H. Neeb, O. Thilmann, Mikhail Zavertyaev, C. Buscher, R. Michaels, T. Walcher, S. Masciocchi, S. Paul, C. Scheel, S. G. Gerassimov, T. Haller, N. Keller, G. Wälder, U. Dersch, E. Vesin, I. K. Potashnikova, Dario Barberis, W. Beusch, M. Boss, Z. Ren, Charles Ray Newsom, Ph. Martin, P. Grafström, Dave M Newbold, M. Heidrich, J. Pochodzalla, H. Rudolph, G. Rosner, A. Simon, E. A. Chudakov, B. Volkemer, F. Faller, S. Brons, M. Buenerd, A. Fournier, R.B. Hurst, Leonardo Paolo Rossi, A. Trombini, M. I. Adamovich, Bogdan Povh, Jürgen Engelfried, K. Königsmann, S. P. Baranov, K. Vorwalter, M. Beck, E. Hubbard, W. Bruckner, R. Werding, Vincent J Smith, E. Wittmann, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and WA89
Subjects: Physics, Particle system, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Nuclear Theory, Hyperon, 01 natural sciences, 7. Clean energy, String (physics), Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutron, Production (computer science), Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Beam (structure)
Abstract: We report on a measurement of the differential cross sections of inclusive $K^{\pm}_{890}$ production in $\sigma^-, pi^-$ and neutron beams. A strong leading particle effect was observed for $K^-_{890}$ production by $\sigma^-$ . The measured $x_F$ –distributions are compared with calculations based on the Lund model (PYTHIA) and the quark-gluon string model.
Published: 2001
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31. 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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32. Scaled-factorial-moment analysis of 200A-GeV sulfur+gold interactions

Author: P. J. Lindstrom, T. H. Burnett, Madan M. Aggarwal, V. S. Shukla, L. K. Mangotra, F. G. Kadyrov, I. Otterlund, K. G. Gulamov, V. Kumar, B. Judek, N. V. Petrov, N. S. Lukicheva, V. S. Navotny, E. Stenlund, P. Y. Zheng, Rashmi Raniwala, N. K. Rao, J. F. Sun, N. A. Salmanova, Bhartendu K. Singh, G. Z. Eligbaeva, S. H. Nasyrov, Renu Arora, V. I. Bubnov, P. Lal, S. Mookerjee, J. C. Zhou, S. C. Strausz, S. Kachroo, V. S. Bhatia, L. S. Liu, V. G. Larionova, Sudhir Raniwala, I. S. Mittra, S. K. Badyal, L. N. Svechnikova, C.I. Shakhova, H. Q. Wang, D. Skelding, A. S. Gaitinov, J. T. Rhee, G. I. Orlova, W. Y. Qian, Dong-Hai Zhang, A. Gill, G. S. Kalyachkina, M. M. Chernyavski, S. Lokanathan, E. M. Friedlander, K. B. Bhalla, C. Mueller, U. G. Gulyamov, Vivek K. Gupta, E. K. Kanygina, L. P. Chernova, B. Dressel, J. J. Lord, J. Grote, T. Koss, K. Söderström, G. F. Xu, S. I. Gadzhieva, R. J. Wilkes, L. E. Eremenko, W. Schultz, I. Y. Chasnikov, Y. A. Alexandrov, Manjit Kaur, S. B. Luo, Anju Bhasin, Z. Q. Weng, S. Hackel, S. P. Kharlamov, Z.V. Anzon, Stefan Persson, E. R. Ganssauge, M. I. Tretyakova, X. Cai, D. C. Zhou, M. I. Adamovich, S. Garpman, N. P. Andreeva, S. G. Gerassimov, N. G. Peresadko, Gautam Kaul, H. H. Heckman, H. Haung, N. V. Maslennikova, and Z. V. Ameeva
Subjects: Physics, Nuclear reaction, Monte Carlo method, Zero (complex analysis), General Physics and Astronomy, chemistry.chemical_element, Central region, Sulfur, Bin, Nuclear physics, chemistry, Pseudorapidity, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Factorial moment
Abstract: S+Au interactions at 200{ital A} GeV were observed using emulsion chambers, permitting measurement of pseudorapidities in the central region with precision {similar to}0.01 unit. Scaled-factorial-moment analyses are extended to bin sizes smaller than those accessible to other fixed-target experimental techniques. For a sample of 151 central collisions, moments are calculated using both horizontal'' and vertical'' analysis techniques. While the moments are found to rise (in a log-log plot) with decreasing pseudorapidity bin size {delta}{eta}, their slopes roll off to approximately zero for {delta}{eta}{lt}0.1.
Published: 1990

33. Cognitive profile of patients with depressive disorders and its significance for antidepressant therapy and social functioning

Author: K. E. Emelin, R. V. Akhapkin, and Y. A. Alexandrovsky
Subjects: социальное функционирование, когнитивные функции, депрессивные расстройства, антидепрессанты, ноотропные препараты, social functioning, cognitive impairment, depressive disorders, antidepressants, nootropicdrugs, Psychiatry, RC435-571
Published: 2018

34. RELATIONSHIP OF NEURONAL BASIS OF PREMORBID FOOD-ACQUISITION (FA) AND ALCOHOL-ACQUISITION BEHAVIOR (AA)

Author: Y. I. Alexandrov, Yu. V. Grinchenko, R. G. Averkin, and D. G. Shevchenko
Subjects: Pharmacology, Psychiatry and Mental health
Published: 1998
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35. Comments to 'Is traceability an exclusive property of analytical results? An extended approach to traceability in chemical analysis'

Author: Y. I. Alexandrov
Subjects: Engineering, Property (philosophy), Traceability, business.industry, Management science, Analytical Chemistry (journal), business, Biochemistry
Published: 1997
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36. Rapidity densities and their fluctuations in central 200 A GeV 32S interactions with Au and Ag, Br nuclei EMU01 collaboration

Author: D. H. Zhang, W. Schultz, Y. A. Alexandrov, N. V. Petrov, K. G. Gulamov, V. Kumar, I. Y. Chasnicov, D. Skelding, P. J. Lindstrom, G. F. Xu, S. I. Gadzhieva, G. Z. Eligbaeva, R.A. Bondarenko, J. T. Rhee, R. S. Storey, H. Kallies, N. V. Maslennikova, G. S. Kalyachkina, V. S. Shukla, N. P. Andreeva, J. C. Zhou, Rashmi Raniwala, V. I. Bubnov, A. Gill, S.A. Azimov, S. G. Gerassimov, I. Otterlund, T. H. Burnett, F. G. Kadyrov, P. Lal, Manjit Kaur, M. M. Chernyavsky, K. Soderstrom, Z. V. Anson, N. A. Salmanova, T. P. Trofimova, N. G. Peresadko, N. K. Rao, S. Lokanathan, T. I. Shakhova, S. Kachroo, M.M. Aggarwal, L. E. Eremenko, U.C. Gulyamov, I. S. Mittra, G. I. Orlova, H. H. Heckman, J. J. Lord, E. M. Friedlander, Sudhir Raniwala, Z. O. Weng, J. Grote, S. Garpman, Gautam Kaul, S. Mookerjee, T. Koss, S. C. Strausz, C. Mueller, P. Y. Zheng, H. Q. Wang, S. P. Kharlamov, E. Stenlund, R. J. Wilkes, W. Y. Qian, L. K. Mangotra, Anju Bhasin, N. Saidkhanov, J. F. Sun, E. K. Kanygina, R. Arora, V. S. Bhatia, L. S. Liu, V. G. Larionova, A. S. Gaitinov, S. H. Nasyrov, M. I. Tretyakova, X. Cai, B. Dressel, Z. V. Ameeva, M. I. Adamovich, L. N. Svechnikova, S. Hackel, K. B. Bhalla, E. Basova, V. S. Navotny, B. Judek, N. S. Lukicheva, Stefan Persson, E. R. Ganssauge, D. C. Zhou, and L. P. Chernova
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, High Energy Physics::Experiment, Rapidity, Multiplicity (chemistry), Atomic physics, Nuclear Experiment
Abstract: The pseudo-rapidity density distributions of shower particles (n s ) are measured in central inelastic S + Au and S + Ag,Br inter-actions. The extracted maximum energy densities, while being higher for Au than for Ag.Br interactions, were found to be similar to those obtained for oxygen emulsion interactions. The correlation between rapidity density and shower particle multiplicity shows a small deviation from the Lund Model Fritiof for the highest energy densities in S + Au interactions, whereas the bulk of the data yields satisfactory agreement.
Published: 1989
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37. Scaling properties of charged particle multiplicity distributions in oxygen induced emulsion interactions at 14.6, 60 and 200 A GeV

Author: S. Hackel, S. Lokanathan, V. S. Shukla, E. M. Friedlander, G. I. Orlova, B. Dressel, S.A. Azimov, Stefan Persson, S. P. Kharlamov, F. Schussler, E. R. Ganssauge, K. G. Gulamov, V. Kumar, P. Y. Zheng, R. Arora, Z. O. Weng, P. Lal, V. S. Bhatia, S. Garpman, L. S. Liu, V. G. Larionova, R. S. Storey, H. Kallies, N. V. Maslennikova, L. Karlsson, R. J. Wilkes, D. C. Zhou, Anju Bhasin, N. Saidkhanov, I. Otterlund, A. Gill, H. Q. Wang, S. Kachroo, S. G. Gerassimov, M. M. Chernyavsky, W. Y. Qian, E. Monnand, Sudhir Raniwala, K. Söderström, M. I. Adamovich, T. H. Burnett, N. A. Salmanova, Madan M. Aggarwal, Rashmi Raniwala, N. G. Peresadko, E. S. Basova, Manjit Kaur, J. C. Zhou, P. J. Lindstrom, H. H. Heckman, J. J. Lord, M. I. Tretyakova, S. Mookerjee, N. K. Rao, R. A. Bondarenko, X. Cai, J. Grote, V. S. Navotny, Gautam Kaul, L. N. Svechnikova, J. F. Sun, S. H. Nasyrov, D. Skelding, J. T. Rhee, F. G. Kadyrov, Evert Anders Stenlund, K. B. Bhalla, B. Judek, N. S. Lukicheva, U. G. Gulyamov, Bo Jakobsson, G. F. Xu, S. I. Gadzhieva, C. Mueller, L. K. Mangotra, T. P. Trofimova, N. V. Petrov, I. S. Mittra, L. P. Chernova, D. H. Zhang, W. Schultz, and Y. A. Alexandrov
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, chemistry, Projectile, Emulsion, chemistry.chemical_element, Multiplicity (mathematics), Atomic physics, Scaling, Oxygen, Particle Physics - Experiment, Charged particle
Abstract: The multiplicity distributions of shower particles (ns) are measured in inclusive inelastic oxygen emulsion interactions. Scaling is observed in the normalized variable ns/〈ns〉 for 14.6, 60 and 200 AGeV. The dependence of 〈ns〉 on the charge flow in the forward direction (QZD) and the distribution of the number of participating projectile protons is examined. The normalized multiplicities as a function of QZD seem also to be independent of incident energies. A comparison with the Lund model Fritiof yields satisfactory agreement.
Published: 1989
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38. Multiplicities and rapidity densities in interactions with emulsion nuclei

Author: S. P. Kharlamov, L. K. Mangotra, S. Hackel, N. V. Petrov, A. Gill, K. G. Gulamov, V. Kumar, S. K. Badyal, M. I. Tretyakova, Rashmi Raniwala, Stefan Persson, F. G. Kadyrov, E. R. Ganssauge, X. Cai, C. Mueller, B. Dressel, G. F. Xu, S. I. Gadzhieva, J. F. Sun, T. P. Trofimova, S. A. Asimov, L. P. Chernova, S. H. Nasyrov, V. S. Shukla, T. H. Burnett, Evert Anders Stenlund, K. Söderström, Y. J. Karant, N. K. Rao, E. Monnand, I. Otterlund, Anju Bhasin, F. Schussler, W. Schulz, J. Kohli, Bo Jakobsson, M. M. Chernyavsky, Z. O. Weng, V. K. Gupta, D. Skelding, H. H. Heckman, R. A. Bondarenkov, J. T. Rhee, M. I. Adamovich, V. G. Larinova, S. Mookerjee, P. J. Lindstrom, G. I. Orlova, Y. A. Alexandrov, R. S. Storey, H. Kallies, N. V. Maslennikova, J. J. Lord, J. Grote, N. G. Peresadko, E. S. Basova, E. M. Friedlander, Sudhir Raniwala, G. L. Koul, P. Y. Zheng, L. S. Liu, S. Garpman, R. J. Wilkes, S. G. Gerassimov, W. S. Nawotny, V. G. Gulyamov, P. Lal, B. Judek, N. S. Lukicheva, K. B. Bhalla, S. Lokanathan, N. G. Salmanova, and S. Kitroo
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Monte Carlo method, Emulsion, Energy density, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, Beam (structure)
Abstract: We report on an experiment in which emulsion chambers were exposed to a beam of 200 A GeV 16 O at the CERN SPS. Pseudo-rapidity distributions are measured with high precision. Pseudo-rapidity densities of 140 particles per unit rapidity corresponding to an energy density of about 3 GeV/fm3 are observed. Pseudo-rapidity density distributions and fluctuations are found to satisfactorily agree with the Lund Monte Carlo model Fritiof, although new and unknown sources for fluctuations might still be present.
Published: 1988
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39. Observation of pairs of charmed particles produced by high-energy photons in nuclear emulsions coupled with a magnetic spectrometer

Author: G.R. Brookes, J.B. Lane, R. Llosa, J. C. Lassalle, D. Newton, M. Dameri, A. Ruiz, W. Galbraith, A. Conti, G. Parrini, Y. A. Alexandrov, E. Higon, A.M. Cartacci, Giovanni Crosetti, R. Gessaroli, M. Davenport, J. P. Dufey, B. Willot, T. Brodbeck, A.I Schlösser, N. G. Peresadko, G. N. Patrick, K. M. Romanovskaya, S. P. Kharlamov, A. Mattei, G. I. Orlova, K.M. Storr, C. Meton, A.P. Waite, G. di Caporiacco, G. Diambrini-Palazzi, J. M. Bolta, Markus Atkinson, George Lafferty, M. m. Chernyavski, A. Forino, A. Quareni Vignudelli, J. Lory, M. I. Tretyakova, V. G. Larionova, D. Schune, J.S. Hutton, D. Mercer, B. Monteleoni-Conforto, Bianca Osculati, G. Vanderhaeghe, C. Raine, Peter Bussey, R. McClatchey, R.J. Ellison, R.E. Hughes-Jones, Mario Sannino, M. Ibbotson, B. R. Kumar, G. Tomasini, L. Bravo, J. V. Morris, M.I. Adamivich, E. Villar, M.G. Dagliana, K. Heinloth, and Tsai Chu
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, High energy photon, Large Hadron Collider, Meson, Spectrometer, D meson, Statistical analysis, Photon beam, Particle Physics - Experiment
Abstract: Preliminary results of an experiment using nuclear emulsions exposed to a tagged photon beam at the CERN SPS (experiment WA58) are presented. Six events showing pairs of charmed particles have been found. One of these has been interpreted as an associated production of Λc+ and D 0. The mean lifetime of the neutral D meson based on three events is τ0 = (0.58−0.2+0.8 × 10−13 s,, whereas a statistical analysis of eight charged charmed particles, assumed to be D mesons, leads to an estimate of the mean lifetime of τ± ≈ 4.4 × 10−13 s.
Published: 1981
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40. Photoproduction of charmed particles in nuclear emulsion coupled to the Omega Prime spectrometer. Description of the experimental method

Author: L. Bravo, G. Parrini, Y. A. Alexandrov, R. Niembro, R. Gessaroli, A. Conti, B. Willot, A. M. Cartacci, J. Martinez, M. M. Chernyavsky, S. P. Kharlamov, N. G. Manjeley, G. Tomasini, S. Tentindo, M. I. Adamovich, Tsai Chu, F. Viaggi, N. A. Salmanova, M. I. Tretyakova, D. Schune, G. Diambrini-Palazzi, J. Lory, V. Castillo, V. G. Larionova, G. di Caporiacco, E. Higon, M. G. Dagliana, Bianca Osculati, A. Marchionni, A. Ruiz, A. Forino, R. Llosa, A. Quareni-Vignudelli, S. G. Gerassimov, E. Villar, G. I. Orlova, M. A. Sanchis, Mario Sannino, J. M. Bolta, B. Monteleoni-Conforto, G. Vanderhaeghe, M. Dameri, and K. M. Romanovskaya
Subjects: Physics, Particle physics, Photon, Large Hadron Collider, Spectrometer, Physics::Instrumentation and Detectors, Bremsstrahlung, Omega, Nuclear physics, Emulsion, High Energy Physics::Experiment, Nuclear emulsion, Nuclear Experiment, Beam (structure)
Abstract: The hybridized system including the nuclear-emulsion target and the magnetic Omega Prime spectrometer is described. The set-up was used in a CERN experiment for the measurement of lifetimes of charmed particles produced by tagged photons from the bremsstrahlung beam. The emulsion served simultaneously as a target and as a high-spatial-resolution vertex detector in order to recognize decay vertices and measure decay distances of charmed particles. In order to avoid the blackening of the emulsion due to electromagnetic interactions the targets were delivered into the beam position one at a time and removed automatically after suitable dosage. The Omega Prime spectrometer allowed the determination of the parameters of the secondary particles and the reconstruction of the interaction points in the emulsion with a high precision. The method used was very successful in finding photohadronic events and in separating a practically background free subsample with the production of pairs of charmed particles decaying inside the emulsion.
Published: 1985

41. A study of recoil protons in ultra-relativistic nucleus-nucleus collisions

Author: T. H. Burnett, L. N. Svechnikova, Z. O. Weng, P. J. Lindstrom, M. M. Chernyavsky, P. Y. Zheng, D. C. Zhou, S. Lokanathan, Madan M. Aggarwal, R. J. Wilkes, J. C. Zhou, K. G. Gulamov, V. Kumar, A. Gill, V. S. Navotny, S. Hackel, Rashmi Raniwala, N. A. Salmanova, B. Judek, N. S. Lukicheva, J. F. Sun, I. S. Mittra, V. S. Shukla, P. Lal, F. G. Kadyrov, N. K. Rao, R. A. Bondarenko, Stefan Persson, S. H. Nasyrov, L. P. Chernova, U. G. Gulyamov, C. Mueller, E. R. Ganssauge, S. Kachroo, E. M. Friedlander, Sudhir Raniwala, R. S. Storey, H. Kallies, N. V. Maslennikova, D. Skelding, D. H. Zhang, K. Söderström, J. T. Rhee, W. Schultz, H. H. Heckman, Y. A. Alexandrov, S. Mookerjee, T. P. Trofimova, G. I. Orlova, I. Otterlund, L. K. Mangotra, K. B. Bhalla, N. V. Petrov, B. Dressel, G. F. Xu, J. J. Lord, J. Grote, S. I. Gadzhieva, H. Q. Wang, W. Y. Qian, Renu Arora, V. S. Bhatia, L. S. Liu, V. G. Larionova, M. I. Tretyakova, Manjit Kaur, X. Cai, N. G. Peresadko, E. S. Basova, Gautam Kaul, S. Garpman, S. G. Gerassimov, Anju Bhasin, N. Saidkhanov, Evert Anders Stenlund, S. P. Kharlamov, and M. I. Adamovich
Subjects: Physics, Nuclear and High Energy Physics, Projectile, Nuclear physics, Recoil, Angular distribution, medicine.anatomical_structure, medicine, Multiplicity (chemistry), Impact parameter, Atomic physics, Nuclear Experiment, Nucleus, Particle Physics - Experiment
Abstract: An investigation of the energy dependence of grey prong producing particles in 16 O+ emulsion interactions at energies from 2.1 to 200 A GeV is reported. Many of the features of these particles, known from hadron-induced interactions, are shown to be of importance also in heavy-ion interactions, i.e. multiplicity and angular distributions as well as the impact parameter dependence are energy independent. Furthermore the angular distribution seems to be independent of the projectile and target masses as well as centrality of the interactions. Both the Fritiof and Ranft models fail to reproduce this general angular shape.
Published: 1989

42. Charged charmed particle lifetime

Author: E. Villar, L. Bravo, G. Parrini, E. Higon, J. Martinez, G. Diambrini-Palazzi, G. di Caporiacco, M. A. Sanchis, B. Willot, M. M. Chernyavski, A. Quareni-Vignudelli, V.G. Larionova, J. Lory, J. M. Bolta, S. Tentindo, M. I. Adamovich, M. G. Dagliana, Y. A. Alexandrov, N. A. Salmanova, A. Conti, L. N. Shtarkov, M. Dameri, R. Gessaroli, S. G. Gerassimov, G. I. Orlova, F. Viaggi, K. M. Romanovskaya, N. G. Manjeley, G. Tomasini, R. Niembro, A. Marchionni, M. I. Tretyakova, D. Schune, Bianca Osculati, A. Ruiz, A. Forino, R. Llosa, S. P. Kharlamov, V. Castillo, A. M. Cartacci, Tsai Chu, B. Monteleoni-Conforto, G. Vanderhaeghe, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, Emulsion, Particle, Física, Nuclear emulsion, 010306 general physics, 01 natural sciences, Omega, Particle Physics - Experiment
Abstract: We present the lifetime values obtained for D ± and Λ c + , photoproduced in nuclear emulsion in the WA58 experiment. In photohadronic interactions, pairs of charmed particles are produced. Out of 20 charged charmed particles used for lifetime evaluation, 17 have their charmed partner seen emulsion, being then essentially free from any background. The values of the lifetime are τ D ± = (3.91 −1.25 +2.35 ) × 10 −13 s, τ Λ c + = (2.22 −0.75 +1.34 ) × 10 −13 s.
Published: 1984

43. Pseudorapidity distributions and correlations in central 16O interactions at 200 A GeV

Author: K. G. Gulamov, V. Kumar, S. C. Strausz, T. H. Burnett, N. Maslenikova, M. I. Adomovich, V. S. Shukla, D. Skelding, S. P. Kharlamov, J. T. Rhee, I. Otterlund, Sudhir Raniwala, V. G. Larivnova, S. Lokanathan, Rashmi Raniwala, S. Hackel, S. Kitroo, L. K. Mangotra, M. I. Tretyakova, X. Cai, Y. J. Karant, N. K. Rao, A. Gill, Stefan Persson, P. Y. Zheng, V. S. Navotny, E. R. Ganssauge, K. Söderström, L. S. Liu, S. Mookerjee, G. I. Orlova, S. A. Asimov, N. G. Salmanova, S. K. Badyal, J. Kohli, Anju Bhasin, Vivek K. Gupta, K. B. Bhalla, P. J. Lindstrom, C. Muller, Z. Q. Weng, B. Dressel, W. Schulz, B. Judek, Bo Jakobsson, R. S. Storey, H. Kallies, F. Schussler, G. F. Xu, R. J. Wilkes, E. Monnand, A. Bharti, S. Garpman, H. H. Heckman, E. Malinina, J. J. Lord, J. Grote, E. Stenlund, J. F. Sun, S. G. Gerassimov, N. G. Peresadko, G. L. Koul, M. M. Chernyavsky, L. P. Chernova, Y. A. Alexandrov, and E. M. Friedlander
Subjects: Nuclear reaction, Physics, Particle physics, Physics::Instrumentation and Detectors, Nuclear Theory, Hadron, Cosmic ray, Elementary particle, Particle detector, Charged particle, Nuclear physics, Pion, Pseudorapidity, High Energy Physics::Experiment, Nuclear Experiment
Abstract: Here we present results on charged hadron production in an experiment using tracking detectors with the highest possible spatial resolution: emulsion chambers. A sample of the most central collisions will be compared to the predictions of the Lund Model, which does an accurate job of representing conventional (non−quark−gluon plasma) physics in nuclear reactions. We can use the high resolution of our detectors to examine spatial correlations in several ways. In particular, the radial size of the particle formation region can be estimated using pion interferometry techniques. (AIP)
Published: 1988
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44. Limiting fragmentation in oxygen-induced emulsion interactions at 14.6, 60, and 200 GeV/nucleon

Author: S. Mookerjee, S. Garpman, Manjit Kaur, P. Lal, D. C. Zhou, B. Judek, N. S. Lukicheva, S. G. Gerassimov, Z. O. Weng, M. I. Adamovich, L. Karlsson, L. P. Chernova, R. A. Bondarenko, F. Schussler, K. Söderström, S. Hackel, Stefan Persson, E. R. Ganssauge, W. Schultz, Anju Bhasin, N. Saidkhanov, N. A. Salmanova, A. Gill, P. J. Lindstrom, Y. A. Alexandrov, S. Lokanathan, E. Monnand, Renu Arora, N. G. Peresadko, E. S. Basova, E. M. Friedlander, V. S. Bhatia, L. S. Liu, V. G. Larionova, Gautam Kaul, H. H. Heckman, S. Kachroo, K. B. Bhalla, G. F. Xu, S. I. Gadzhieva, J. J. Lord, N. V. Petrov, R. J. Wilkes, J. Grote, R. S. Storey, H. Kallies, H. Q. Wang, N. V. Maslennikova, M. I. Tretyakova, X. Cai, W. Y. Qian, E. Stenlund, I. S. Mittra, J. F. Sun, J. C. Zhou, S. H. Nasyrov, I. Otterlund, Bo Jakobsson, S. P. Kharlamov, C. Mueller, S.A. Azimov, U. G. Gulyamov, P. Y. Zheng, T. P. Trofimova, M. M. Chernyavski, T. H. Burnett, Sudhir Raniwala, V. S. Shukla, Rashmi Raniwala, N. K. Rao, K. G. Gulamov, V. Kumar, Dong-Hai Zhang, B. Dressel, G. I. Orlova, L. K. Mangotra, F. G. Kadyrov, L. N. Svechnikova, D. Skelding, J. T. Rhee, Madan M. Aggarwal, and V. S. Navotny
Subjects: Physics, Nuclear reaction, Particle physics, Nuclear Theory, Quark model, General Physics and Astronomy, Charged particle, Nuclear physics, Strange matter, Fragmentation (mass spectrometry), Pseudorapidity, Spallation, Nuclear Experiment, Nucleon, Particle Physics - Experiment
Abstract: Pseudorapidity distributions of relativistic singly charged particles in oxygen-induced emulsion interactions at 14.6, 60, and 200 GeV/nucleon are studied. Limiting fragmentation behavior is observed in both the target and projectile fragmentation regions for a central as well as for a minimum-bias sample. Comparisons with the fritiof model reveal that the picture of fragmenting strings successfully describes the observed data.
Published: 1989

45. Cross sections and some features of charm photoproduction at gamma energies of 20-70 GeV

Author: J. Salt, J. Lory, Y. A. Alexandrov, A. Conti, M. G. Dagliana, Mario Sannino, E. Higon, Jasone Garay Garcia, F. Viaggi, L. Bravo, V. Castillo, M. I. Adamovich, G. I. Orlova, G. Diambrini-Palazzi, G. Parrini, M. A. Sanchis, N. A. Salmanova, J. M. Bolta, G. di Caporiacco, S. Tentindo, V. G. Larionova, R. Gessaroli, E. Villar, A. Marchionni, A. Quareni-Vignudelli, Bianca Osculati, A. Lopez, M. Dameri, M. M. Chernyavsky, S. G. Gerassimov, N. G. Peresadko, B. Willot, R. Niembro, G. Tomasini, B. Monteleoni-Conforto, G. Vanderhaeghe, A. M. Cartacci, Tsai Chu, S. P. Kharlamov, M. I. Tretyakova, D. Schune, A. Ruiz, A. Forino, R. Llosa, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Física, 01 natural sciences, Omega, 3. Good health, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Nucleon, Nuclear Experiment, Particle Physics - Experiment
Abstract: We report some results on charm photoproduction at γ energies ranging from 20 to 70 GeV. 36 events with pairs of charmed particles have been found in emulsions. The computed total cross section is (230±57)nb/nucleon. Frequencies of different production channels and some distributions are presented and compared with the predictions from a photon-gluon fusion model with string fragmentation.
Published: 1987

46. Measurement of the Lifetime of Neutral Charmed Mesons

Author: Y. A. Alexandrov, B. Monteleoni-Conforto, G. Vanderhaeghe, Chu Tsai, J. Martinez, E. Higon, J. Lory, G. Diambrini-Palazzi, A. Marchionni, A. M. Cartacci, M. I. Adamovich, M. Dameri, A. Conti, E. Villar, S. Tentido, R. Gessaroli, Bianca Osculati, L. N. Shtarkov, B. Willot, N. A. Salmanova, A. Quareni-Vignudelli, M. A. Sanchis, V. G. Larioniva, F. Viaggi, V. Castillo, R. Llosa, M. G. Dagliana, F. Senent, S. G. Gerassimov, N. G. Manjeley, G. Tomasini, A. Ruiz, A. Forino, G. I. Orlova, R. Niembro, S. P. Kharlamov, M. M. Chernyavski, G. di Caporiacco, M. I. Tretyakova, D. Schune, L. Bravo, G. Parrini, K. M. Romanovskaya, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, 0103 physical sciences, Emulsion, Física, 010306 general physics, 01 natural sciences, Sample (graphics), Particle Physics - Experiment
Abstract: The lifetime of neutral charmed particles photoproduced in emulsion has been measured. The lifetime value presented here was obtained from a sample of 22D 0 mesons, 18 of which have their charmed partner seen in emulsion. The sample is essentially background-free. The result obtained is τ D 0 =(2.11 +1.21 -0.63 )×10 13 s The D 0 mass derived from 8 3C events is m D 0 = 1856 ± 36 MeV/ c 2 .
Published: 1984

47. Specificity of visual and motor cortex neurons activity in behavior

Author: Y I, Alexandrov and I O, Alexandrov
Subjects: Neurons, Eating, Masseter Muscle, Neck Muscles, Motor Cortex, Animals, Rabbits, Evoked Potentials, Visual Cortex
Abstract: The involvement of the units of visual (VC) and motor cortex (MC) in the systemic behavioral mechanisms is determined by the "environment" and "executive mechanisms of behavior". The unit activity in VC and MC, head and lower jaw movements, EMG of m. masseter and latency of touching the food were recorded. In experiment I the rabbits eyes were covered with occluders that were put on and taken off after every 4-5 repetitions of the behavioral act. It was found that the visual inflow was not necessary for the activations of both MC and VC neurons to appear. The pattern of neuronal activity changed when behavioral act was performed with the eyes closed. These changes following the "visual" influences were more pronounced in the VC. In experiment II the unit activity of both cortical areas was compared during the free head movement towards food and during the movement hampered with the rubber thread. The more pronounced susceptibility of VC neurons to activity changes was demonstrated again, this time after motor influences.
Published: 1982

48. Production of recessive lethals in Drosophila by viruses non-infectious for the host

Author: S, Gershenson, Y N, Alexandrov, and S S, Maliuta
Subjects: Male, Deoxyribonucleases, Sex Chromosomes, Genetic Complementation Test, DNA Viruses, Genes, Recessive, Insect Viruses, Orthomyxoviridae, Animal Feed, Chromosomes, Poliovirus, Larva, DNA, Viral, Mutation, Animals, RNA Viruses, RNA, Viral, Drosophila, Genes, Lethal, Alleles
Published: 1971

49. The epidemiological significance of Ixodes persulcatus P. Sch. males in Russian spring-summer tick-borne encephalitis

Author: Y V, Alexandrov and V N, Yagodinsky
Subjects: Male, Ticks, Arthropod Vectors, Encephalitis Viruses, Tick-Borne, USSR
Published: 1966

50. Nucleus-nucleus collision as superposition of nucleon-nucleus collisions

Author: Madan M. Aggarwal, D. Felea, S. B. Luo, I. Manhas, S. P. Kharlamov, V. S. Navotny, E. K. Kanygina, U. Henjes, A.M. Tawfik, M.M. Chernyaysky, Y.M. Qin, K. El Chenawi, S. Dhamija, K. G. Gulamov, I. S. Mittra, R. Sethi, G.M. Chen, V. Kumar, L. P. Chernova, J. J. Lord, Y.X. Li, Janka Vrlakova, M. Gheata, J. Grote, Anju Bhasin, R. J. Wilkes, N. Saidkhanov, M. Roeper, D. Skelding, A.K. Musaeva, D. C. Zhou, S. K. Gupta, K. B. Bhalla, M. Karabova, A. Gheata, C.B. Yang, S.A. Krasnov, Bo Jakobsson, Z. Q. Weng, I. Y. Chasnikov, L. N. Svechnikova, W. Y. Qian, S. I. Zhokhova, L.Z. Yu, N. G. Peresadko, E. S. Basova, Y. A. Alexandrov, Vivek K. Gupta, Joakim Nystrand, H.Q. Wang, M. I. Tretyakova, S.Z. Nasyrov, L. K. Mangotra, V. Vashisht, Y. Lu, X. Cai, N. S. Lukicheva, A. S. Gaitinov, K. Soderstrem, T. Svensson, S. Garpman, Alexander Kovalenko, E. Stenlund, X.R. Wang, E. R. Ganssauge, S. Lokanathan, T. P. Trofimova, G. I. Orlova, S. K. Badyal, Dong-Hai Zhang, M. I. Adamovich, N. P. Andreeva, S. G. Gerassimov, V. Bradnova, V. I. Bubnov, V. V. Rusakova, Z.B. Yin, S.Q. Feng, I. Otterlund, S. Vokal, V. S. Bhatia, L. S. Liu, V. G. Larionova, U.I. Tuleeva, Rashmi Raniwala, B. Singh, N. A. Salmanova, A.M. Seitimbetov, N. K. Rao, P. Y. Zheng, and M. Tothova
Subjects: Physics, Nuclear and High Energy Physics, Projectile, Nuclear Theory, Atomic and Molecular Physics, and Optics, Charged particle, Nuclear physics, Momentum, Superposition principle, medicine.anatomical_structure, Angular momentum coupling, medicine, Impact parameter, Atomic physics, Nuclear Experiment, Nucleon, Nucleus
Abstract: Angular distributions of charged particles produced in 16O and 32S collisions with nuclear track emulsion were studied at momenta 4.5 and 200 A GeV/c. Comparison with the angular distributions of charged particles produced in proton-nucleus collisions at the same momentum allows to draw the conclusion, that the angular distributions in nucleus-nucleus collisions can be seen as superposition of the angular distributions in nucleon-nucleus collisions taken at the same impact parameter bNA, that is mean impact parameter between the participating projectile nucleons and the center of the target nucleus

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