Now showing items 82-101 of 112

    • Photoluminescence and Raman spectroscopy of polycrystalline ZnO nanofibers deposited by electrospinning 

      Sen, Banani; Stroscio, Michael; Dutta, Mitra (Springer Verlag, 2011-06-15)
      The technique of electrospinning offers the advantage of growing nanowires in bulk quantities in comparison with traditional methods. We report optical studies of polycrystalline zinc oxide (ZnO) nanofibers (∼100 nm thick ...
    • Position-sensitive change in the transition metal L-edge fine structures. 

      Gulec, A; Phillips, PJ; Klie, RF (American Institute of Physics, 2015-10-05)
      Studying the structure and composition of solid-state materials on the atomic scale has become nearly routine in transmission electron microscopy with the development of novel electron optics and electron sources. In ...
    • Probing compressed bottom squarks with boosted jets and shape analysis 

      Dutta, B.; Gurrola, A.; Hatakeyama, K.; Johns, W.; Kamon, T.; Sheldon, P.; Sinha, K.; Wu, S.; Wu, Z. (American Physical Society, 2015-11-05)
      A feasibility study is presented for the search of the lightest bottom squark (sbottom) in a compressed scenario, where its mass difference from the lightest neutralino is 5 GeV. Two separate studies are performed: 1) a ...
    • Quantifying electronic correlation strength in a complex oxide: A combined DMFT and ARPES study of LaNiO3 

      Nowadnick, EA; Ruf, JP; Park, H; King, PDC; Schlom, DG; Shen, KM; Millis, AJ (American Physical Society, 2015-12-07)
      The electronic correlation strength is a basic quantity that characterizes the physical properties of materials such as transition metal oxides. Determining correlation strengths requires both precise definitions and a ...
    • Recent Theoretical Developments in Strongly Coupled QCD 

      Yee, Ho-Ung (Elsevier, 2013-05)
      Heavy-ion collisions involve strongly coupled dynamics of QCD in the entire history of time evolution. We review recent theoretical e orts to meet this challenge, focusing on the two approaches that the speaker has ...
    • Redux on “When is the top quark a parton?” 

      Dawson, S.; Ismail, A.; Low, I. (American Physical Society, 2014-07-01)
      If a new heavy particle ϕ is produced in association with the top quark in a hadron collider, the production cross section exhibits a collinear singularity of the form logðmϕ=mtÞ, which can be resummed by introducing a ...
    • Relativistic theory of hydrodynamic fluctuations with applications to heavy-ion collisions 

      Kapusta, J. I.; Muller, B.; Stephanov, M. (American Physical Society, 2012-05)
      We develop the relativistic theory of hydrodynamic fluctuations for application to high-energy heavy-ion collisions. In particular, we investigate their effect on the expanding boost-invariant (Bjorken) solution of ...
    • Relaxation Times for Chiral Transport Phenomena and Spin Polarization in Strongly Coupled Plasma 

      Li, Shiyong; Yee, Ho-Ung (American Physical Society, 2018-09)
      We compute the dynamical relaxation times for chiral transport phenomena in a strongly coupled regime using the AdS/CFT correspondence. These relaxation times can be a useful proxy for the dynamical timescale for achieving ...
    • Role of the Gouy phase in the coherent phase control of the photoionization and photodissociation of vinyl chloride 

      Barge, Vishal J.; Hu, Zhan; Willig, Joyce; Gordon, Robert J (American Physical Socieety, 2006-12-31)
      We demonstrate theoretically and experimentally that the Gouy phase of a focused laser beam may be used to control the photoinduced reactions of a polyatomic molecule. Quantum mechanical interference between one- and ...
    • Same-sign dilepton excesses and light top squarks 

      Huang, P.; Ismail, A.; Low, I.; Wagner, C. E. M. (American Physical Society, 2015-10-28)
      Run 1 data of the Large Hadron Collider (LHC) contain excessive events in the same-sign dilepton channel with b-jets and missing transverse energy (MET), which were observed by five separate analyses from the ATLAS and CMS ...
    • Search for Top Squarks in R-Parity-Violating Supersymmetry Using Three or More Leptons and b-Tagged Jets 

      Apanasevich, Leonard; Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Ero, J.; Fabjan, C.; Friedl, M.; Fruhwirth, R. (American Physical Society, 2013)
      A search for anomalous production of events with three or more isolated leptons and bottom-quark jets produced in pp collisions at ffiffiffi s p ¼ 8 TeV is presented. The analysis is based on a data sample corresponding ...
    • Search for ZH -> l(+)l(-)b(b)over-bar production in 9.7 fb(-1) of p(p)over-bar collisions with the D0 detector 

      Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.; Augsten, K.; Avila, C.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Baringer, P.; Bartlett, J. F.; Bassler, U.; Bazterra, V.; Bean, A.; Begalli, M.; Bellantoni, L. (American Physical Society, 2013-09)
      We present a search for the standard model Higgs boson produced in association with a Z boson in 9.7  fb−1 of pp¯ collisions collected with the D0 detector at the Fermilab Tevatron Collider at s√=1.96  TeV. Selected events ...
    • Second order transport coefficient from the chiral anomaly at weak coupling: Diagrammatic resummation 

      Jimenez-Alba, A.; Yee, H-U (American Physical Society, 2015-07)
      We compute one of the second order transport coefficients arising from the chiral anomaly in a hightemperature weakly coupled regime of quark-gluon plasma. This transport coefficient is responsible for the CP-odd current ...
    • Semianalytic model of electron pulse propagation: Magnetic lenses and rf pulse compression cavities 

      Berger, Joel A.; Schroeder, W. A. (American Institute of Physics, 2010-12-15)
      The analytical Gaussian electron pulse propagation model of Michalik and Sipe [J. Appl. Phys. 99, 054908 (2006)] is extended to include the action of external forces on the pulse. The resultant ability to simulate efficiently ...
    • Sign of Kurtosis near the QCD Critical Point 

      Stephanov, M. A. (American Physical Society, 2011-07)
      We point out that the quartic cumulant (and kurtosis) of the order parameter fluctuations is universally negative when the critical point is approached on the crossover side of the phase separation line. As a consequence, ...
    • Static polarizabilities and optical absorption spectra of gold clusters (Au-n, n=2–14 and 20) from first principles 

      Idrobo, Juan C.; Walkosz, Weronika; Yip, Shing Fan; Ogut, Serdar; Wang, Jinlan; Jellinek, Julius (American Physical Society, 2007-11)
      Static polarizabilities and optical absorption spectra for the ground state structures of gold clusters (Au-n, [n is subscript] n=2-14 and 20) are investigated from first principles within static and time-dependent density ...
    • Structural and optical characterization of infrared hot electron transistor 

      Jung, Hyeson; Pinsukanjana, Paul; Dutta, Mitra; Choi, Kwong-Kit; Tidrow, Meimei Z. (American Institute of Physics, 2010-08-01)
      We present structural, optical, and transport characterization of long wave infrared hot electron transistor (IHET) based on doped quantum wells of InGaAs/AlGaAs. The atomic resolution images and x-ray diffraction patterns ...
    • Supernova bounds on Weinberg’s Goldstone bosons 

      Keung, W-Y.; Ng, K-W.; Tu, H.; Yuan, T-C. (American Physical Society, 2014-10-16)
      Recently, Weinberg proposed a scenario where Goldstone bosons may be masquerading as fractional cosmic neutrinos. We calculate the energy loss rates through the emission of these Goldstone bosons in a postcollapse supernova ...
    • System size and centrality dependence of charged hadron transverse momentum spectra in Au + Au and Cu + Cu collisions at root s(NN)=62.4 and 200 GeV 

      Alver, B.; Back, B.B.; Baker, M.D.; Ballintijn, M.; Barton, D.S.; Betts, R.R.; Bindel, R.; Busza, W.; Chai, Z.; Chetluru, V.; Garcia, E.; Gburek, T.; Gulbrandsen, K.; Hamblen, J.; Harnarine, I.; Henderson, C.; Hofman, D.; Hollis, R.S.; Holynski, R.; Holzman, B.; Iordanova, A.; Kane, J.L.; Kulinich, P.; Kuo, C.M.; Li, W.; Lin, W.T.; Loizides, C.; Manly, S.; Mignerey, A.C.; Nouicer, R.; Olszewski, A.; Pak, R.; Reed, C.; Richardson, E.; Roland, C.; Roland, G.; Sagerer, J.; Sedykh, I.; Smith, C.E.; Stankiewicz, M.A.; Steinberg, P.; Stephans, G.S.F.; Sukhanov, A.; Szostak, A.; Tonjes, M.B.; Trzupek, A.; van Nieuwenhuizen, G.J.; Vaurynovich, S.S.; Verdier, R.; Veres, G.I.; Walters, P.; Wenger, E.; Willhelm, D.; Wolfs, F.L.H.; Wosiek, B.; Wozniak, K.; Wyngaardt, S.; Wyslouch, B. (American Physical Society, 2006-06-02)
      We present transverse momentum distributions of charged hadrons produced in Cu+Cu collisions at root sNN=62.4 and 200 GeV. The spectra are measured for transverse momenta of 0.25 < p(T)< 5.0 GeV/c at root sNN=62.4 GeV and ...
    • System size, energy, pseudorapidity, and centrality dependence of elliptic flow 

      Alver, B.; Back, B.B.; Baker, M.D.; Ballintijn, M.; Barton, D.S.; Betts, R.R.; Bickley, A.A.; Bindel, R.; Busza, W.; Carroll, A.; Chai, Z.; Chetluru, V.; Decowski, M.P.; Garcia, E.; Gburek, T.; George, N.; Gulbrandsen, K.; Halliwell, C.; Hamblen, J.; Harnarine, I.; Hauer, M.; Henderson, C.; Hofman, D.J.; Hollis, R.S.; Holynski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J.L.; Khan, N.; Kulinich, P.; Kuo, C.M.; Li, W.; Lin, W.T.; Loizides, C.; Manly, S.; Mignerey, A.C.; Nouicer, R.; Olszewski, A.; Pak, R.; Reed, C.; Richardson, E.; Roland, C.; Roland, G.; Sagerer, J.; Seals, H.; Sedykh, I.; Smith, C.E.; Stankiewicz, M.A.; Steinberg, P.; Stephans, G.S.F.; Sukhanov, A.; Szostak, A.; Tonjes, M.B.; Trzupek, A.; Vale, C.; Van Nieuwenhuizen, G.J.; Vaurynovich, S.S.; Verdier, R.; Veres, G.I.; Walters, P.; Wenger, E.; Willhelm, D.; Wolfs, F.L.H.; Wosiek, B.; Wozniak, K.; Wyngaardt, S.; Wyslouch, B. (American Physical Society, 2007-06-15)
      This Letter presents measurements of the elliptic flow of charged particles as a function of pseudorapidity and centrality from Cu-Cu collisions at 62.4 and 200 GeV using the PHOBOS detector at the Relativistic Heavy Ion ...