Now showing items 893-912 of 1509

    • Observation of Time-Reversal Violation in the B⁰ Meson System 

      Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Izen, Joseph M.; Lou, Xinchou; BaBar Collaboration (American Physical Society, 2012-11-19)
      Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time-reversal violation. The decays of entangled neutral B mesons into definite flavor states ...
    • Observation of Top-Quark Pair Production in Association with a Photon and Measurement of the tt̅γ Production Cross Section in pp Collisions at √s=7 TeV Using the ATLAS Detector 

      Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Izen, Joseph M.; Leyton, Michael; Lou, Xinchou; Namasivayam, Harisankar; Reeves, Kendall; ATLAS Collaboration (Amer Physical Soc, 2015-04-01)
      A search is performed for top-quark pairs tt̅ produced together with a photon (γ) with transverse energy greater than 20 GeV using a sample of tt̅ candidate events in final states with jets, missing transverse momentum, ...
    • Observation of Z_c (3900)⁰ in e⁺e⁻ → π⁰π⁰J/ψ 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; Lou, Xinchou; BESIII Collaboration (2015-09-11)
      Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, we observe a new neutral state Z_c (3900)⁰ with a significance of 10.4σ. The mass and width are measured to be 3894.8 ± 2.3 ± 3.2 ...
    • Observation of η'→π⁺π⁻π⁺π⁻ and η'→π⁺π⁻π⁰π⁰ 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; An, F. F.; Lou, Xinchou (2014-06-25)
      Using a sample of 1.3 x 10⁹ J/ψ events collected with the BESIII detector, we report the first observation of η'→π⁺π⁻π⁺π⁻ and η'→π⁺π⁻π⁰π⁰. The measured branching fractions are ℬ(η'→π⁺π⁻π⁺π⁻) = [8.53 ± 0.69(stat.) ± ...
    • Observation of η′ → ωe⁺e⁻ 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; Lou, Xinchou; BESIII Collaboration (Amer Physical Soc, 2015-09-15)
      Based on a sample of η′ mesons produced in the radiative decay J/ψ → γη′ in 1.31 x 10⁹ J/ψ events collected with the BESIII detector, the decay η′ → ωe⁺e⁻ is observed for the first time, with a statistical significance of ...
    • Observation of Λ_c⁺ → nK_s⁰ π⁺ 

      Ablikim, M.; Achasov, M. N.; Ahmed, S.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Lou, Xinchou (American Physical Society, 2018-05-24)
      We report the first direct measurement of decays of the Λ_c⁺ baryon involving the neutron. The analysis is performed using 567 pb⁻¹ of e⁺e⁻ collision data collected at √s̅ = 4.599 GeV with the BESIII detector at the BEPCII ...
    • Observation of ψ(3686) → e⁺e⁻χ_{cJ} and χ_{cJ} → e⁺e⁻J/ψ 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; Lou, Xinchou; BESIII Collaboration (American Physical Society, 2017)
      Using 4.479 x 10⁸ ψ(3686) events collected with the BESIII detector, we search for the decays ψ(3686)→ e⁺e⁻χ_{cJ} and χ_{cJ} → e⁺e⁻J/ψ, where J=0, 1, 2. The decays ψ(3686) → e⁺e⁻χ_{cJ} and χ_{cJ} → e⁺e⁻J/ψ are observed for ...
    • Observations of Discrete Harmonics Emerging from Equatorial Noise 

      Balikhin, Michael A.; Shprits, Yuri Y.; Walker, Simon N.; Chen, Lunjin; Cornilleau-Wehrlin, Nicole; Dandouras, Iannis; Santolik, Ondrej; Carr, Christopher; Yearby, Keith H.; Weiss, Benjamin (Nature Publishing Group, 2015-07-14)
      A number of modes of oscillations of particles and fields can exist in space plasmas. Since the early 1970s, space missions have observed noise-like plasma waves near the geomagnetic equator known as 'equatorial noise'. ...
    • Observations of the Generation of Eastward Equatorial Electric Fields near Dawn 

      Kelley, M. C.; Rodrigues, Fabiano S.; Pfaff, R. F.; Klenzing, J. (Copernicus Gesellschaft Mbh, 2014-09-19)
      We report and discuss interesting observations of the variability of electric fields and ionospheric densities near sunrise in the equatorial ionosphere made by instruments onboard the Communications/Navigation Outage ...
    • Odd-Integer Quantum Hall States and Giant Spin Susceptibility in P -Type Few-Layer WSe₂ 

      Xu, S.; Shen, J.; Long, G.; Wu, Z.; Bao, Zhi-qiang; Liu, Cheng-Cheng; Xiao, X.; Han, T.; Lin, J.; Wu, Y.; Lu, H.; Hou, J.; An, L.; Wang, Y.; Cai, Y.; Ho, K. M.; He, Y.; Lortz, R.; Zhang, Fan; Wang, N. (American Physical Society, 2017-02-10)
      We fabricate high-mobility p-type few-layer WSe₂ field-effect transistors and surprisingly observe a series of quantum Hall (QH) states following an unconventional sequence predominated by odd-integer states under a moderate ...
    • Oestrogen Receptors Interact with the α-Catalytic Subunit of AMP-Activated Protein Kinase 

      Lipovka, Yulia; Chen, Hao; Vagner, Josef; Price, Theodore J. (UT Dallas); Tsao, Tsu-Shuen; Konhilas, John P.
      Normal and pathological stressors engage the AMP-activated protein kinase (AMPK) signaling axis to protect the cell from energetic pressures. Sex steroid hormones also play a critical role in energy metabolism and significantly ...
    • of Nature 

      School of Arts and Humanities (The University of Texas at Dallas, 2016-01-26)
    • An Old Friend 

      School of Arts and Humanities (The University of Texas at Dallas, 2015-12-18)
    • OLego: Fast and Sensitive Mapping of Spliced mRNA-Seq Reads Using Small Seeds 

      Wu, Jie; Anczuk©w, Olga; Krainer, Adrian R.; Zhang, Michael Q.; Zhang, Chaolin (Oxford University Press, 2013-04)
      A crucial step in analyzing mRNA-Seq data is to accurately and efficiently map hundreds of millions of reads to the reference genome and exon junctions. Here we present OLego, an algorithm specifically designed for de novo ...
    • On Implications of Demand Censoring in the Newsvendor Problem 

      Besbes, O.; Muharremoglu, Alp
      We consider a repeated newsvendor problem in which the decision maker (DM) does not have access to the underlying demand distribution. The goal of this paper is to characterize the implications of demand censoring on ...
    • On Mathematical Contributions of Petr Petrovich Zabreiko 

      Balanov, Zalman, 1959-; Gaishun, I.; Gorohovik, V.; Krawcewicz, Wieslaw; Lebedev, A. (2012-09-05)
      No abstract available.
    • On the AJ Conjecture for Knots 

      Le, Thang T. Q.; Tran, Anh T.; Huynh, Vu Q. (2015-07-07)
      We confirm the AJ conjecture [Ga2] that relates the A-polynomial and the colored Jones polynomial for hyperbolic knots satisfying certain conditions. In particular, we show that the conjecture holds true for some classes ...
    • On the coarseness of bicolored point sets 

      Bereg, Sergey; Díaz-Báñez, J. M.; Lara, D.; Pérez-Lantero, P.; Seara, C.; Urrutia, J. (Elsevier B. V., 2012-04-24)
      Let R be a set of red points and B a set of blue points on the plane. In this paper we introduce a new concept, which we call coarseness, for measuring how blended the elements of S=R⊃B are. For X∪S, let Δ(X)=
    • On the complexity of clustering multi-hop wireless networks 

      Basagni, Stefano, 1965- (The University of Texas at Dallas, 2013-04-18)
      A Distributed Clustering Algorithm (DCA) is presented that partitions the nodes of a fully mobile network (multi-hop network) into clusters, thus giving the network a hierarchical organization. Nodes are grouped by following ...
    • On the Diffusion Rates of Electron Bounce Resonant Scattering by Magnetosonic Waves 

      Maldonado, Armando A.; Chen, Lunjin
      Magnetosonic waves have been demonstrated as effective for bounce resonant scattering. Electron scattering rates due to bounce resonance interaction with magnetosonic waves are derived in a general form, where the effects ...