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A trigger of events with a high multiplicity of charged particles at the SVD-2 setup.

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Title: A trigger of events with a high multiplicity of charged particles at the SVD-2 setup.
Authors: Avdeichikov, V.1, Bogdanova, G.2, Budilov, V.1, Volkov, V.2, Kokoulina, E.1, Kutov, A.3, Leflat, A.2, Nikitin, V.1, Popov, V.2, Rufanov, I.1, Kholodenko, A.4
Source: Instruments & Experimental Techniques. Mar2011, Vol. 54 Issue 2, p159-168. 10p. 5 Diagrams, 7 Graphs.
Subjects: Multiplicity of nuclear particles, Physics projects, Proton beams, Particle accelerators, Physics experiments, Nuclear energy, Center of mass, Energy dissipation, Magnetic spectrometer
Abstract: The Thermalization project is currently under way on the extracted proton beam of the U-70 accelerator at the Institute for High Energy Physics. The main goal of this experiment is to study the collective behavior of secondary particles produced in a multiparticle pp interaction at beam energy E = 50-70 GeV. The region of high charged-particle multiplicities n ≥ 10 is investigated. In this region, a significant portion of energy in the center-of-mass system is dissipated on production of secondary particles, which results in formation of a hadronic system. At the initial instant of evolution, the density of this system is high, which may be responsible for the collective behavior of the secondary particles. The investigations are performed at the SVD-2 wide-aperture magnetic spectrometer. A multichannel trigger scintillation hodoscope used to select rare events with a large number of charged particles exceeding the predetermined value is described. The main flow of low-multiplicity events is suppressed by the trigger system by a factor of ∼10. [ABSTRACT FROM AUTHOR]
Copyright of Instruments & Experimental Techniques is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A trigger of events with a high multiplicity of charged particles at the SVD-2 setup.
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  Data: <searchLink fieldCode="JN" term="%22Instruments+%26+Experimental+Techniques%22">Instruments & Experimental Techniques</searchLink>. Mar2011, Vol. 54 Issue 2, p159-168. 10p. 5 Diagrams, 7 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Multiplicity+of+nuclear+particles%22">Multiplicity of nuclear particles</searchLink><br /><searchLink fieldCode="DE" term="%22Physics+projects%22">Physics projects</searchLink><br /><searchLink fieldCode="DE" term="%22Proton+beams%22">Proton beams</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+accelerators%22">Particle accelerators</searchLink><br /><searchLink fieldCode="DE" term="%22Physics+experiments%22">Physics experiments</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+energy%22">Nuclear energy</searchLink><br /><searchLink fieldCode="DE" term="%22Center+of+mass%22">Center of mass</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+spectrometer%22">Magnetic spectrometer</searchLink>
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  Data: The Thermalization project is currently under way on the extracted proton beam of the U-70 accelerator at the Institute for High Energy Physics. The main goal of this experiment is to study the collective behavior of secondary particles produced in a multiparticle pp interaction at beam energy E = 50-70 GeV. The region of high charged-particle multiplicities n ≥ 10 is investigated. In this region, a significant portion of energy in the center-of-mass system is dissipated on production of secondary particles, which results in formation of a hadronic system. At the initial instant of evolution, the density of this system is high, which may be responsible for the collective behavior of the secondary particles. The investigations are performed at the SVD-2 wide-aperture magnetic spectrometer. A multichannel trigger scintillation hodoscope used to select rare events with a large number of charged particles exceeding the predetermined value is described. The main flow of low-multiplicity events is suppressed by the trigger system by a factor of ∼10. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Instruments & Experimental Techniques is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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