Now showing items 1-20 of 1678

    • Discrete-state stochastic kinetic models for target DNA search by proteins: Theory and experimental applications 

      Iwahara, Junji; Kolomeisky, Anatoly B.; Center for Theoretical Biological Physics (2021)
      To perform their functions, transcription factors and DNA-repair/modifying enzymes randomly search DNA in order to locate their specific targets on DNA. Discrete-state stochastic kinetic models have been developed to explain how the efficiency of the search process is influenced by the molecular properties of proteins and DNA as well as by other ...
    • Search for top squark pair production using dilepton final states in pp collision data collected at s√=13TeV 

      CMS collaboration (2021)
      A search is presented for supersymmetric partners of the top quark (top squarks) in final states with two oppositely charged leptons (electrons or muons), jets identified as originating from bquarks, and missing transverse momentum. The search uses data from proton-proton collisions at s√=13TeV collected with the CMS detector, corresponding to an ...
    • Multiorbital singlet pairing and d + d superconductivity 

      Nica, Emilian M.; Si, Qimiao; Rice Center for Quantum Materials (2021)
      Recent experiments in multiband Fe-based and heavy-fermion superconductors have challenged the long-held dichotomy between simple s- and d-wave spin-singlet pairing states. Here, we advance several time-reversal-invariant irreducible pairings that go beyond the standard singlet functions through a matrix structure in the band/orbital space, and ...
    • Metal-to-insulator transition in Pt-doped TiSe 2 driven by emergent network of narrow transport channels 

      Lee, Kyungmin; Choe, Jesse; Iaia, Davide; Li, Juqiang; Zhao, Junjing; (2021)
      Metal-to-insulator transitions (MIT) can be driven by a number of different mechanisms, each resulting in a different type of insulator—Change in chemical potential can induce a transition from a metal to a band insulator; strong correlations can drive a metal into a Mott insulator with an energy gap; an Anderson transition, on the other hand, due ...
    • Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s√=13TeV 

      CMS Collaboration (2021)
      A search for dark matter particles is performed using events with a Z boson candidate and large missing transverse momentum. The analysis is based on proton–proton collision data at a center-of-mass energy of 13TeV, collected by the CMS experiment at the LHC in 2016–2018, corresponding to an integrated luminosity of 137fb−1. The search uses the decay ...
    • Search for the lepton flavor violating decay τ → 3μ in proton-proton collisions at s√= 13 TeV 

      The CMS collaboration (2021)
      Results are reported from a search for the lepton flavor violating decay τ → 3μ in proton-proton collisions at s√ = 13 TeV. The data sample corresponds to an integrated luminosity of 33.2 fb−1 recorded by the CMS experiment at the LHC in 2016. The search exploits τ leptons produced in both W boson and heavy-flavor hadron decays. No significant excess ...
    • Study of the normalized transverse momentum distribution of W bosons produced in p¯p collisions at √s=1.96  TeV 

      The D0 Collaboration (2021)
      We present a study of the normalized transverse momentum distribution of W bosons produced in p¯p collisions, using data corresponding to an integrated luminosity of 4.35 fb−1 collected with the D0 detector at the Fermilab Tevatron collider at √s=1.96 TeV. The measurement focuses on the transverse momentum region below 15 GeV, which is of special ...
    • Phonon-Assisted Hot Carrier Generation in Plasmonic Semiconductor Systems 

      Hattori, Yocefu; Meng, Jie; Zheng, Kaibo; Meier de Andrade, Ageo; Kullgren, Jolla; (2021)
      Plasmonic materials have optical cross sections that exceed by 10-fold their geometric sizes, making them uniquely suitable to convert light into electrical charges. Harvesting plasmon-generated hot carriers is of interest for the broad fields of photovoltaics and photocatalysis; however, their direct utilization is limited by their ultrafast ...
    • Evidence for Higgs boson decay to a pair of muons 

      The CMS collaboration (2021)
      Evidence for Higgs boson decay to a pair of muons is presented. This result combines searches in four exclusive categories targeting the production of the Higgs boson via gluon fusion, via vector boson fusion, in association with a vector boson, and in association with a top quark-antiquark pair. The analysis is performed using proton-proton collision ...
    • Measurements of production cross sections of polarized same-sign W boson pairs in association with two jets in proton-proton collisions at s=13 TeV 

      The CMS Collaboration (2021)
      The first measurements of production cross sections of polarized same-sign W±W± boson pairs in proton-proton collisions are reported. The measurements are based on a data sample collected with the CMS detector at the LHC at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 137fb−1. Events are selected by requiring exactly ...
    • Correlations of azimuthal anisotropy Fourier harmonics with subevent cumulants in pPb collisions at √sNN=8.16TeV 

      CMS Collaboration (2021)
      Event-by-event long-range correlations of azimuthal anisotropy Fourier coefficients (vn) in 8.16 TeV pPb data, collected by the CMS experiment at the CERN Large Hadron Collider, are extracted using a subevent four-particle cumulant technique applied to very low multiplicity events. Each combination of four charged particles is selected from either ...
    • Measurements of W and Z/γ∗ cross sections and their ratios in p+p collisions at RHIC 

      STAR Collaboration (2021)
      We report on the W and Z/γ∗ differential and total cross sections as well as the W+/W− and (W++W−)/(Z/γ∗) cross section ratios measured by the STAR experiment at RHIC in p+p collisions at √s=500 GeV and 510 GeV. The cross sections and their ratios are sensitive to quark and antiquark parton distribution functions. In particular, at leading order, the ...
    • Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at s=13TeV 

      The CMS Collaboration (2021)
      Evidence is presented for the electroweak (EW) production of two jets (jj) in association with two Z bosons and constraints on anomalous quartic gauge couplings are set. The analysis is based on a data sample of proton-proton collisions at s=13TeV collected with the CMS detector in 2016–2018, and corresponding to an integrated luminosity of 137fb−1. ...
    • Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies 

      The CMS Collaboration (2021)
      Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D0 mesons produced in pp and pPb collisions are presented. Nonprompt D0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. ...
    • All-Optically Reconfigurable Plasmonic Metagrating for Ultrafast Diffraction Management 

      Schirato, Andrea; Mazzanti, Andrea; Proietti Zaccaria, Remo; Nordlander, Peter; Alabastri, Alessandro; (2021)
      Hot-electron dynamics taking place in nanostructured materials upon irradiation with fs-laser pulses has been the subject of intensive research, leading to the emerging field of ultrafast nanophotonics. However, the most common description of nonlinear interaction with ultrashort laser pulses assumes a homogeneous spatial distribution for the ...
    • The CMS Phase-1 pixel detector upgrade 

      The Tracker Group of the CMS collaboration (2021)
      The CMS detector at the CERN LHC features a silicon pixel detector as its innermost subdetector. The original CMS pixel detector has been replaced with an upgraded pixel system (CMS Phase-1 pixel detector) in the extended year-end technical stop of the LHC in 2016/2017. The upgraded CMS pixel detector is designed to cope with the higher instantaneous ...
    • Colors of Single-Wall Carbon Nanotubes 

      Wei, Nan; Tian, Ying; Liao, Yongping; Komatsu, Natsumi; Gao, Weilu; (2021)
      Although single-wall carbon nanotubes (SWCNTs) exhibit various colors in suspension, directly synthesized SWCNT films usually appear black. Recently, a unique one-step method for directly fabricating green and brown films has been developed. Such remarkable progress, however, has brought up several new questions. The coloration mechanism, potentially ...
    • Giant spontaneous Hall effect in a nonmagnetic Weyl–Kondo semimetal 

      Dzsaber, Sami; Yan, Xinlin; Taupin, Mathieu; Eguchi, Gaku; Prokofiev, Andrey; (2021)
      Nontrivial topology in condensed-matter systems enriches quantum states of matter to go beyond either the classification into metals and insulators in terms of conventional band theory or that of symmetry-broken phases by Landau’s order parameter framework. So far, focus has been on weakly interacting systems, and little is known about the limit of ...
    • DNA Looping and DNA Conformational Fluctuations Can Accelerate Protein Target Search 

      Felipe, Cayke; Shin, Jaeoh; Kolomeisky, Anatoly B.; Center for Theoretical Biological Physics (2021)
      Protein searching and binding to specific sites on DNA is a fundamentally important process that marks the beginning of all major cellular transformations. While the dynamics of protein–DNA interactions in in vitro settings is well investigated, the situation is much more complex for in vivo conditions because the DNA molecules in live cells are ...
    • Amplitude Modulation of Short-timescale Hot Spot Variability 

      Biddle, Lauren I.; Llama, Joe; Cameron, Andrew; Prato, L.; Jardine, Moira; (2021)
      Variability of Classical T Tauri stars (CTTS) occurs over a vast range of timescales. CTTS in particular are subject to variability caused by accretion shocks, which can occur stochastically, periodically, or quasi-periodically on timescales over a few days. The detectability of young planets within these systems is likely hampered by activity; ...