Barbara Jacak

from Wikipedia, the free encyclopedia
Jacak in Berkeley 2016

Barbara V. Jacak (* 1957 ) is an American nuclear physicist .

Jacak graduated with a bachelor's degree in chemistry from the University of California, Berkeley , and received a PhD in physical chemistry from Michigan State University in 1984 . There she experimented on the superconducting cyclotron K-500 (National Superconducting Cyclotron Laboratory). As a post-doctoral student , she was an Oppenheimer Fellow at Los Alamos National Laboratory , where she was permanently employed from 1987. From 1994 to 1996 she was also an Adjunct Associate Professor at the neighboring University of New Mexico. In 1997 she became Professor of Physics at the State University of New York at Stony Brook , where she became a Distinguished Professor in 2008, and from 2015 she was Director of Nuclear Physics at the Lawrence Berkeley National Laboratory and Professor at the University of Berkeley.

She investigates the quark-gluon plasma with heavy ion collisions, first in the Helios and NA44 experiments of CERN (Super Proton Synchroton, SPS), then in the PHENIX experiment of the Relativistic Heavy Ion Collider (RHIC). From 2007 to 2012 she was the spokesperson for the Phenix experiment. One result of the Phenix experiment was the observation of the suppression of partons with high transverse impulses (and thus of jets ), which is considered to be an indication of the formation of a quark-gluon plasma. After being appointed professor in Berkeley, she was involved in the ALICE experiment of the Large Hadron Collider at CERN as the leader of the group from Berkeley. Her group investigates the interaction of partons with quark-gluon plasmas via photons and jets.

For 2019 she received the Tom W. Bonner Prize for Nuclear Physics for her leadership role in the discovery and characterization of the quark-gluon plasma, in particular for her contributions to the Phenix experiment and its exploration of jets as samples .

She is a Fellow of the American Physical Society (1997) and the American Association for the Advancement of Science and a member of the American Academy of Arts and Sciences (2016) and the National Academy of Sciences (2009). In 2016/17 she chaired the National Academies Board for Physics and Astronomy. In 2005/06 she chaired the RHIC Program Advisory Committee and served on the Nuclear Physics Committee of the National Research Council.

Fonts (selection)

  • Barbara Jacak, Berndt Muller: The exploration of hot nuclear matter , Science, Volume 337, 2012, pp. 310-314
  • H. Kruse, BV Jacak, H. Stoecker: Microscopic theory of pion production and sidewards flow in heavy ion collisions , Phys. Rev. Lett., Vol. 54, 1985, pp. 289-292
  • KGR Doss u. a .: Fragment flow in nuclear collisions , Phys. Rev. Lett., Vol. 59, 1987, p. 2720
  • T. Akesson et al. a. (The HELIOS Collaboration): Low mass lepton-pair production in p-Be collisions at 450-GeV / c , Z. Phys. C, Vol. 68, 1995, pp. 47-64
  • I. Bearden et al. a. (NA44 Collaboration): Collective expansion in high-energy heavy ion collisions , Phys. Rev. Lett., Volume 78, 1997, pp. 2080-2083
  • U. Heinz, B. Jacak: Two-particle correlations in relativistic heavy ion collisions , Annu. Rev. Nucl. Part. Sci., Vol. 49, 1999, pp. 529-579
  • K. Adcox et al. a. (PHENIX Collaboration), "Suppression of hadrons with large transverse momentum in central Au + Au collisions at √SNN = 130 GeV", Phys. Rev. Lett. 88, 022301 (2002).
  • SS Adler u. a. (PHENIX Collaboration): Absence of suppression in particle production at large transverse momentum in √SNN = 200 GeV d + Au collisions , Phys. Rev. Lett., Vol. 91, 2003, p. 072303
  • SS Adler u. a. (PHENIX Collaboration): Jet structure of baryon excess in Au + Au collisions at √SNN = 200 GeV , Phys. Rev. C, Volume 71, 2005, p. 051902 (R)
  • K. Adcox et al. a. (PHENIX Collaboration): Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration. Status of our program to create, detect and characterize quark-gluon plasma , Nucl. Phys. A, Vol. 757, 2005, pp. 184-283
  • SS Adler u. a. (PHENIX Collaboration): Dense-Medium Modifications to Jet-Induced Hadron Pair Distributions in Au + Au Collisions at √SNN = 200 GeV , Phys. Rev. Lett., Volume 97, 2006, p. 052301
  • A. Adare et al. a. (PHENIX Collaboration): System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation Shapes in Relativistic Nuclear Collisions , Phys. Rev. Lett., Volume 98, 2007, p. 232302
  • A. Adare et al. a. (PHENIX Collaboration): Dihadron azimuthal correlations in Au + Au collisions at sqrt (s_NN) = 200 GeV , Phys. Rev. C, Volume 78, 2008, p. 014901

Web links

Individual evidence

  1. ^ Tom W. Bonnor Prize for Jacak
personal data
SURNAME Jacak, Barbara
ALTERNATIVE NAMES Jacak, Barbara V.
BRIEF DESCRIPTION American nuclear physicist
DATE OF BIRTH 1957