Now showing items 436-455 of 1350

    • Ising-nematic order in the bilinear-biquadratic model for the iron pnictides 

      Ergueta, Patricia Bilbao; Nevidomskyy, Andriy H. (2015)
      Motivated by the recent inelastic neutron scattering (INS) measurements in the iron pnictides which show a strong anisotropy of spin excitations even above the magnetic transition temperature TN, we study the spin dynamics ...
    • Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in √sNN=200 GeV Au+Au collisions 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Roberts, J.B.; Xin, K.; Yepes, P. (2015)
      A data-driven method was applied to Au+Au collisions at √sNN=200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Δη-dependent and Δη-independent correlations by using two- and four-particle ...
    • Isotropic Seebeck coefficient of aligned single-wall carbon nanotube films 

      Fukuhara, Kengo; Ichinose, Yota; Nishidome, Hiroyuki; Yomogida, Yohei; Katsutani, Fumiya; Komatsu, Natsumi; Gao, Weilu; Kono, Junichiro; Yanagi, Kazuhiro (2018)
      How the morphology of a macroscopic assembly of nanoobjects affects its properties is a long-standing question in nanomaterials science and engineering. Here, we examine how the thermoelectric properties of a flexible thin ...
    • An itinerant antiferromagnetic metal without magnetic constituents 

      Svanidze, E.; Wang, Jiakui K.; Besara, T.; Liu, L.; Huang, Q.; Siegrist, T.; Frandsen, B.; Lynn, J.W.; Nevidomskyy, Andriy H.; Gamża, Monika B.; Aronson, M.C.; Uemura, Y.J.; Morosan, E. (2015)
      The origin of magnetism in metals has been traditionally discussed in two diametrically opposite limits: itinerant and local moments. Surprisingly, there are very few known examples of materials that are close to the ...
    • Itinerant chiral ferromagnetism in a trapped Rashba spin-orbit-coupled Fermi gas 

      Zhang, Shang-Shun; Liu, Wu-Ming; Pu, Han (2016)
      We consider a repulsive two-component Fermi gas confined in a two-dimensional isotropic harmonic potential and subject to a large Rashba spin-orbit coupling. The single-particle dispersion can be tailored by the ...
    • J/ψ and ψ (2S) production in pp collisions at √s=7Tev 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Cuplov, V.; Ecklund, K.M.; Geurts, F.J.M.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2012)
      A measurement of the J/ψ and ψ(2S) production cross sections in pp collisions at √s=7TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 pb−1. Using a fit to ...
    • J/ψ polarization in p+p collisions at √s=200 GeV in STAR 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; McDonald, D.; Roberts, J.B.; Xin, K.; Yepes, P. (2014)
      We report on a polarization measurement of inclusive J/ψ mesons in the di-electron decay channel at mid-rapidity at 2<pT<6 GeV/c in p+p collisions at √s=200 GeV. Data were taken with the STAR detector at RHIC. The J/ψ ...
    • J/ψ production at low pT in Au + Au and Cu + Cu collisions at √sNN =200 GeV with the STAR detector 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; Roberts, J.B.; Xin, K.; Yepes, P. (2014)
      The J/ψ pT spectrum and nuclear modification factor (RAA) are reported for pT<5GeV/c and |y|<1 from 0% to 60% central Au+Au and Cu+Cu collisions at √ sNN =200GeV at STAR. A significant suppression of pT-integrated J/ψ ...
    • J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV 

      STAR Collaboration; Brandenburg, J.D.; Butterworth, J.; Eppley, G.; Geurts, F.; Roberts, J.B.; Tlusty, D. (2018)
      We present a measurement of inclusive J/ψ production at mid-rapidity (|y|<1) in p+p collisions at a center-of-mass energy of s=200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential ...
    • Jet and underlying event properties as a function of charged-particle multiplicity in proton–proton collisions at √s=7 TeV 

      CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; Li, W.; Michlin, B.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2013)
      Characteristics of multi-particle production in proton-proton collisions at √s=7 TeV are studied as a function of the charged-particle multiplicity, N ch. The produced particles are separated into two classes: those belonging ...
    • Jet momentum dependence of jet quenching in PbPb collisions at √SNN=2.76 TeV 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Cuplov, V.; Ecklund, K.M.; Geurts, F.J.M.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2012)
      Dijet production in PbPb collisions at a nucleon–nucleon center-of-mass energy of 2.76 TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 150 μb−1 is analyzed. Jets ...
    • Jet production rates in association with W and Z bosons in pp collisions at √s=7TeV 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Ecklund, K.M.; Geurts, F.J.M.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2012)
      Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recorded by CMS at s√=7TeV, corresponding to ...
    • Jet properties in PbPb and pp collisions at sNN−−−−√=5.02 TeV 

      CMS collaboration; Chen, Z.; Ecklund, K.M.; Freed, S.; Geurts, F.J.M.; Guilbaud, M.; Kilpatrick, M.; Li, W.; Michlin, B.; Padley, B.P.; Roberts, J.; Rorie, J.; Shi, W.; Tu, Z.; Zabel, J.; Zhang, A. (2018)
      Modifications of the properties of jets in PbPb collisions, relative to those in pp collisions, are studied at a nucleon-nucleon center-of-mass energy of sNN−−−−√=5.02sNN=5.02 \sqrt{s_{\mathrm{N}\;\mathrm{N}}}=5.02 TeV via ...
    • Jet-Hadron Correlations in √sNN=200  GeV p+p and Central Au+Au Collisions 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; Roberts, J.B.; Xin, K.; Yepes, P. (2014)
      Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at √sNN=200  GeV in STAR are presented. The trigger jet population in Au+Au collisions ...
    • K2ᅠReveals Pulsed Accretion Driven by the 2 Myr Old Hot Jupiter CI Tau b 

      Biddle, Lauren I.; Johns-Krull, Christopher M.; Llama, Joe; Prato, Lisa; Skiff, Brian A. (2018)
      CIᅠTau is a young (~2 Myr) classical T Tauri star located in the Taurus star-forming region. Radial velocity observations indicate it hosts a Jupiter-sized planet with an orbital period of approximately 9 days. In this ...
    • Kinetic energy oscillations in annular regions of ultracold neutral plasmas 

      Laha, S.; Chen, Y.C.; Gupta, P.; Simien, C.E.; Martinez, Y.N.; Mickelson, P.G.; Nagel, S.B.; Killian, T.C. (2006)
    • Kondo Destruction and Quantum Criticality in Kondo Lattice Systems 

      Si, Qimiao; Pixley, Jedediah H.; Nica, Emilian; Yamamoto, Seiji J.; Goswami, Pallab; Yu, Rong; Kirchner, Stefan (2014)
      Considerable efforts have been made in recent years to theoretically understand quantum phase transitions in Kondo lattice systems. A particular focus is on Kondo destruction, which leads to quantum criticality that goes ...
    • Kondo Destruction and Valence Fluctuations in an Anderson Model 

      Pixley, J.H.; Kirchner, Stefan; Ingersent, Kevin; Si, Qimiao (2012)
      Unconventional quantum criticality in heavy-fermion systems has been extensively analyzed in terms of a critical destruction of the Kondo effect. Motivated by a recent demonstration of quantum criticality in a mixed-valent ...
    • Kondo destruction in a quantum paramagnet with magnetic frustration 

      Zhang, Jiahao; Zhao, Hengcan; Lv, Meng; Hu, Sile; Isikawa, Yosikazu; Yang, Yi-feng; Si, Qimiao; Steglich, Frank; Sun, Peijie (2018)
      We report results of isothermal magnetotransport and susceptibility measurements at elevated magnetic fields B down to very low temperatures T on single crystals of the frustrated Kondo-lattice system CePdAl. They reveal ...
    • Kondo hybridization and quantum criticality in β−YbAlB4 by laser ARPES 

      Bareille, Cédric; Suzuki, Shintaro; Nakayama, Mitsuhiro; Kuroda, Kenta; Nevidomskyy, Andriy H.; Matsumoto, Yosuke; Nakatsuji, Satoru; Kondo, Takeshi; Shin, Shik (2018)
      We report an angle-resolved photoemission (ARPES) study of β−YbAlB4, which is known to harbor unconventional quantum criticality (QC) without any tuning. We directly observe a quasiparticle peak (QP) emerging from ...