skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Study of Azimuthal Correlations in the Target Fragmentation Region in p, d, He, C+C, Ta and C+Ne, Cu Collisions at a Momentum of 4.2, 4.5 and 10 AGeV/c

Abstract

Azimuthal correlations between the same type of particles (protons or pions) in the target fragmentation region was studied in d, He, C + C, Ta (4.2 AGeV/c), C + Ne, Cu (4.5AGeV/c) and p + C, Ta (10 GeV/c) interactions. The data were obtained from the SKM-200-GIBS streamer chamber and from Propane Bubble Chamber (PBL-500) systems utilized at JINR. Study of multiparticle azimuthal correlations offers unique information about space-time evolution of the interactions. Azimuthal correlations were investigated by using correlation function C($$\Delta\phi$$)=dN/d($$\Delta\phi$$), where $$\Delta\phi$$ represents the angle between the sums of transverse momenta vectors for particles emitted in the forward and backward hemispheres. For protons a "back-to back" ("negative") azimuthal correlations were observed in the above mentioned interactions. The absolute values of the correlation coefficient $$|\xi|$$ -- the slope parameter of C($$\Delta\phi$$), strongly depend on the mass number of the target ($$A_T$$) nuclei in the nucleon-nucleus and nucleus-nucleus collisions. Namely, $$|\xi|$$ -- decreases with increase of $$A_T$$ in p+C and p+Ta collisions, while $$|\xi|$$ decreases from d+C up to C+Ne and then almost does not change with increase of $$A_P$$, $$A_T$$ in (d+He)Ta, C+Cu and C+Ta collisions. For pions a "back-to-back" correlations were obtained for a light targets (C, Ne), and a "side-by-side" ("positive") correlations for a heavy targets (Cu, Ta). The $$|\xi|$$ insignificantly changes with increase of the momenta per nucleon and almost does not change with increase of $$A_P$$ and $$A_T$$. Models, used for description of the data -- the Ultra relativistic Quantum Molecular Dynamic (UrQMD) and Quark-Gluon String Model (QGSM), satisfactorily describe the obtained experimental results.

Authors:
 [1];  [2];  [1];  [3];  [1];  [4];  [3]
  1. Tbilisi State U.
  2. Fermilab
  3. Dubna, JINR
  4. Ulan Bator, Inst. Phys. Tech.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1478051
Report Number(s):
arXiv:1808.02661; FERMILAB-PUB-18-497-TD
1685532
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Eur.Phys.J.
Additional Journal Information:
Journal Volume: A55; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Chkhaidze, L., Chlachidze, G., Djobava, T., Galoyan, A., Kharkhelauri, L., Togoo, R., and Uzhinsky, V. Study of Azimuthal Correlations in the Target Fragmentation Region in p, d, He, C+C, Ta and C+Ne, Cu Collisions at a Momentum of 4.2, 4.5 and 10 AGeV/c. United States: N. p., 2019. Web. doi:10.1140/epja/i2019-12674-9.
Chkhaidze, L., Chlachidze, G., Djobava, T., Galoyan, A., Kharkhelauri, L., Togoo, R., & Uzhinsky, V. Study of Azimuthal Correlations in the Target Fragmentation Region in p, d, He, C+C, Ta and C+Ne, Cu Collisions at a Momentum of 4.2, 4.5 and 10 AGeV/c. United States. doi:10.1140/epja/i2019-12674-9.
Chkhaidze, L., Chlachidze, G., Djobava, T., Galoyan, A., Kharkhelauri, L., Togoo, R., and Uzhinsky, V. Wed . "Study of Azimuthal Correlations in the Target Fragmentation Region in p, d, He, C+C, Ta and C+Ne, Cu Collisions at a Momentum of 4.2, 4.5 and 10 AGeV/c". United States. doi:10.1140/epja/i2019-12674-9. https://www.osti.gov/servlets/purl/1478051.
@article{osti_1478051,
title = {Study of Azimuthal Correlations in the Target Fragmentation Region in p, d, He, C+C, Ta and C+Ne, Cu Collisions at a Momentum of 4.2, 4.5 and 10 AGeV/c},
author = {Chkhaidze, L. and Chlachidze, G. and Djobava, T. and Galoyan, A. and Kharkhelauri, L. and Togoo, R. and Uzhinsky, V.},
abstractNote = {Azimuthal correlations between the same type of particles (protons or pions) in the target fragmentation region was studied in d, He, C + C, Ta (4.2 AGeV/c), C + Ne, Cu (4.5AGeV/c) and p + C, Ta (10 GeV/c) interactions. The data were obtained from the SKM-200-GIBS streamer chamber and from Propane Bubble Chamber (PBL-500) systems utilized at JINR. Study of multiparticle azimuthal correlations offers unique information about space-time evolution of the interactions. Azimuthal correlations were investigated by using correlation function C($\Delta\phi$)=dN/d($\Delta\phi$), where $\Delta\phi$ represents the angle between the sums of transverse momenta vectors for particles emitted in the forward and backward hemispheres. For protons a "back-to back" ("negative") azimuthal correlations were observed in the above mentioned interactions. The absolute values of the correlation coefficient $|\xi|$ -- the slope parameter of C($\Delta\phi$), strongly depend on the mass number of the target ($A_T$) nuclei in the nucleon-nucleus and nucleus-nucleus collisions. Namely, $|\xi|$ -- decreases with increase of $A_T$ in p+C and p+Ta collisions, while $|\xi|$ decreases from d+C up to C+Ne and then almost does not change with increase of $A_P$, $A_T$ in (d+He)Ta, C+Cu and C+Ta collisions. For pions a "back-to-back" correlations were obtained for a light targets (C, Ne), and a "side-by-side" ("positive") correlations for a heavy targets (Cu, Ta). The $|\xi|$ insignificantly changes with increase of the momenta per nucleon and almost does not change with increase of $A_P$ and $A_T$. Models, used for description of the data -- the Ultra relativistic Quantum Molecular Dynamic (UrQMD) and Quark-Gluon String Model (QGSM), satisfactorily describe the obtained experimental results.},
doi = {10.1140/epja/i2019-12674-9},
journal = {Eur.Phys.J.},
number = 1,
volume = A55,
place = {United States},
year = {2019},
month = {1}
}

Journal Article:

Figures / Tables:

Table 1 Table 1: The number of experimental and Monte-Carlo (MC) generated (UrQMD and QGSM) events (Nevent), the correlation coefficient (ξ) for protons and pions in these collisions.

Save / Share:

Works referenced in this record:

Elliptic flow from a parton cascade
journal, May 1999


Azimuthal correlations in the target fragmentation region of high energy nuclear collisions
journal, July 1996


Differential transverse flow in central C-Ne and C-Cu collisions at 3.7 GeV/nucleon
journal, April 2002


Collective flow of protons and negative pions in nucleus–nucleus collisions at momentum of
journal, October 2007


Anisotropic collective flow of Λ-hyperons produced in collisions at
journal, December 2009


Microscopic models for ultrarelativistic heavy ion collisions
journal, January 1998


Elliptic Flow in A u + A u Collisions at s NN = 130 GeV
journal, January 2001


The observation of collective effects in central CNe and CCu collisions at a momentum of 4.5 GeV/c per nucleon
journal, October 1997


Measurements of directed, elliptic, and triangular flow in Cu + Au collisions at s NN = 200 GeV
journal, November 2016


Pion production in inelastic and central nuclear collisions at high energy
journal, March 1986


Last call for RHIC predictions
journal, December 1999


Azimuthal correlations of pions in relativistic heavy-ion collisions at 1 GeV/nucleon
journal, June 1995


Collective flows of protons and π mesons in 2 H + C,Ta and He + C, Ta collisions at 3.4 GeV/nucleon
journal, December 2011


Transverse flow and collectivity in ultrarelativistic heavy-ion collisions
journal, September 1991


Study of collective matter flow in central C-Ne and C-Cu collisions at 3.7 GeV/nucleon
journal, April 2000


Improvements of ultra-relativistic quantum molecular dynamics model simulated by spallation neutron data induced by 1.2 GeV protons on Al, Fe and Zr
journal, May 2005


Study of collective flow effects in CC collisions at a momentum of 4.2 GeV/c per nucleon
journal, April 2004

  • Chkhaidze, L. V.; Djobava, T. D.; Kharkhelauri, L. L.
  • Physics of Atomic Nuclei, Vol. 67, Issue 4
  • DOI: 10.1134/1.1707129

Disappearance of Elliptic Flow: A New Probe for the Nuclear Equation of State
journal, September 1998


Study of collective flows of protons and $ \pi^{{-}}_{}$ π - -mesons in p+C, Ta and He+Li, C collisions at momenta of 4.2, 4.5 and 10 AGeV/c
journal, November 2016


The comparison of characteristics of π− mesons produced in central Mg-Mg interactions with the quark gluon string model predictions
journal, March 1998

  • Chkhaidze, L.; Djobava, T.; Kharkhelauri, L.
  • The European Physical Journal A, Vol. 1, Issue 3
  • DOI: 10.1007/s100500050064

Observation of strong azimuthal asymmetry between slow and fast particles from high energy nuclear collisions
journal, September 1985

  • Gustafsson, H. A.; Gutbrod, H. H.; Kolb, B.
  • Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 321, Issue 3
  • DOI: 10.1007/BF01411969

Modelling the many-body dynamics of heavy ion collisions: Present status and future perspective
journal, February 1998

  • Hartnack, C.; Puri, Rajeev K.; Aichelin, J.
  • The European Physical Journal A, Vol. 1, Issue 2
  • DOI: 10.1007/s100500050045

Pion absorption in excited nuclear matter
journal, July 1992


Multiparticle azimuthal correlations of negative pions in nucleus-nucleus collisions
journal, July 2012

  • Chkhaidze, L. V.; Djobava, T. D.; Kharkhelauri, L. L.
  • Physics of Atomic Nuclei, Vol. 75, Issue 7
  • DOI: 10.1134/S1063778812030064

Directed and elliptic flow of charged particles in Cu + Cu collisions at s N N = 22.4 GeV
journal, January 2012


Study of multiparticle azimuthal correlations in central CNE, MgMg, CCu, and OPb interactions at energy of 3.7 GeV per nucleon
journal, August 2002

  • Chkhaidze, L. V.; Djobava, T. D.; Kharkhelauri, L. L.
  • Physics of Atomic Nuclei, Vol. 65, Issue 8
  • DOI: 10.1134/1.1501660

Squeeze-out of nuclear matter as a function of projectile energy and mass
journal, August 1990


Elliptic Flow: Transition from Out-of-Plane to In-Plane Emission in Au + Au Collisions
journal, August 1999


Statistical simulation of the break-up of highly excited nuclei
journal, December 1987


Elliptic Flow of Charged Particles in Pb-Pb Collisions at s N N = 2.76 TeV
journal, December 2010


Recent results from the WA80 experiment at CERN
journal, July 1992


Relativistic hadron-hadron collisions in the ultra-relativistic quantum molecular dynamics model
journal, September 1999

  • Bleicher, M.; Zabrodin, E.; Spieles, C.
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 25, Issue 9
  • DOI: 10.1088/0954-3899/25/9/308

Anisotropy as a signature of transverse collective flow
journal, July 1992


Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi mathvariant="normal">NN</mml:mi></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> with the ATLAS detector
journal, February 2012


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.