## RNC SOFT PHYSICS GROUP (since 1998)

#### Nuclear Science Division,  Lawrence Berkeley National Laboratory

 Home Members Results Group page before 2009

 The physics interest of the LBL Soft Physics Group is to study the formation and characteristics of the medium system created in relativistic nucleus-nucleus collisions at RHIC energies, with focus on the single particle momentum spectra, azimuthal anisotropic distributions, two particle correlations, heavy flavor and electromagetic probe production by utilizing the STAR detector. We are studying/searching for the MATTER EoS with partonic degrees of freedom: partonic collectivity, thermalization, and the temperature of the system created at RHIC. We are also carrying out the program of exploring the QCD phase map to search for the first order phase transition boundary and the possible QCD critical point. Quick Links: STAR, STAR drupal LBL, RNC arXiv, SPIRES, LBL e-journal ROOT, PDG picoDst

## Selected Publications:

- "Measurement of D^0 azimuthal anisotropy at mid-rapidity in Au+Au collisions at $sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 118, 212301 (2017).
- "Direct virtual photon production in Au+Au collisions at $sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Lett. B 770, 451 (2017).
- "Centrality and transverse momentum dependence of elliptic flow of multi-strange hadrons and phi mesons in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 116, 062301 (2016).
- "Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at $\sqrt{s_{NN}}$ = 7.7-62.4 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 93, 014907 (2016).
- "Measurements of Dielectron Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV from the STAR Experiment", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 92, 024912 (2015).
- "Dielectron Mass Spectra from Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 113, 022301 (2014).
- "Energy Dependence of Moments of Net-Proton Multiplicity Distributions at RHIC", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 112, 032302 (2014).
- "Observation of $D^0$ Meson Nuclear Modifications in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 113, 142301 (2014).
- "Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 110, 142301 (2013).
- "Elliptic Flow of Identified Hadrons in Au+Au Collisions at $\sqrt{s_{NN}}$ = 7.7 - 62.4 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 88, 014902 (2013).
- "Third Harmonic Flow of Charged Particles in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 88, 014904 (2013).
- "Measurement of $J/\psi$ Azimuthal Anisotropy in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. Lett. 111, 052301 (2013).
- "Inclusive Charged Hadron Elliptic Flow in Au+Au Collisions at $\sqrt{s_{NN}}$ = 7.7 - 39 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 86, 054908 (2012).
- "Measurement of $D^0$ and $D^*$ Production in $p+p$ Collisions at $\sqrt{s}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. D 86, 072013 (2012).
- "Di-electron Spectrum at Mid-rapidity in $p+p$ Collisions at $\sqrt{s}$ = 200 GeV", L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 86, 024906 (2012).
- "Observation of the Antimatter Helium-4 Nucleus", H. Agakishiev et al. (STAR Collaboration), Nature 473, 353 (2011).
- "An Experimental Exploration of the QCD Phase Diagram: The Search for the Critical Point and the Onset of De-confinement", M.M. Aggarwal et al. (STAR Collaboration), arXiv: 1007.2613.
- "Higher Moments of Net-proton Multiplicity Distributions at RHIC", M.M. Aggarwal et al. (STAR Collaboration), Phys. Rev. Lett. 105, 022302 (2010).
- "Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation", B.I. Abelev et al. (STAR Collaboration), Phys. Rev. Lett. 103, 251601 (2009).
- "Partonic Flow and Phi-Meson Production in Au+Au Collisions at $\sqrt{s}$ = 200 GeV", B.I. Abelev et al. (STAR Collaboration), Phys. Rev. Lett. 99, 112301 (2007).
- "Scaling Properties of Hyperon Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV", J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 98, 062301 (2007).
- "Multi-strange Baryon Elliptic Flow in Au+Au Collisions at $\sqrt{s_{NN}$ = 200 GeV", J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 95, 122301 (2005).
- "Open Charm Yields in d+Au Collisions at $\sqrt{s_{NN}$ = 200 GeV", J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 94, 062301 (2005).
- "Azimuthal Anisotropy at Relativistic Heavy Ion Collider: the First and Fourth Harmonics", J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 92, 062301 (2004).
- "Identified Particle Distributions in p+p and Au+Au Collisions at $\sqrt{s_{NN}$ = 200 GeV", J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 92, 112301 (2004).
- "Particle-type Dependence of Azimuthal Anisotropy and Nuclear Modification of Particle Production in Au+Au Collisions at $\sqrt{s_{NN}$ = 200 GeV", J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 92, 052302 (2004).
- "Mid-rapidity Antiproton-to-Proton Ratio from Au+Au Collisions $\sqrt{s_{NN}$ = 130 GeV", C. Adler et al. (STAR Collaboration), Phys. Rev. Lett. 86, 4778 (2001), Erratum: Phys. Rev. Lett. 90, 119903(E) (2003).
- "Elliptic Flow in Au+Au Collisions at $\sqrt{s_{NN}$ = 130 GeV", K.H. Ackermann et al. (STAR Collaboration), Phys. Rev. Lett. 86, 402 (2001),