Now showing items 453-472 of 1387

• #### J/ψ and ψ (2S) production in pp collisions at √s=7Tev ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ...

(2006)
• #### Kondo Destruction and Quantum Criticality in Kondo Lattice Systems ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ...
• #### Kondo Insulator to Semimetal Transformation Tuned by Spin-Orbit Coupling ﻿

(2017)
Recent theoretical studies of topologically nontrivial electronic states in Kondo insulators have pointed to the importance of spin-orbit coupling (SOC) for stabilizing these states. However, systematic experimental studies ...
• #### Landau level crossing in a spin-orbit coupled two-dimensional electron gas ﻿

(2015)
We have studied experimentally theﾠLandau levelﾠ(LL) spectrum of a two-dimensionalﾠelectron gasﾠ(2DEG)ﾠin an In0.53Ga0.47As/InPﾠquantum wellﾠstructure by means of low-temperature magneto-transport coincidence measurement ...
• #### Large-amplitude electric fields in the inner magnetosphere: Van Allen Probes observations of subauroral polarization streams ﻿

(2016)
The subauroral polarization stream (SAPS) is an important magnetosphere-ionosphere (MI) coupling phenomenon that impacts a range of particle populations in the inner magnetosphere. SAPS studies often emphasize ionospheric ...
• #### Large-scale current systems and ground magnetic disturbance during deep substorm injections ﻿

(2012)
We present a detailed analysis of the large-scale current systems and their effects on the ground magnetic field disturbance for an idealized substorm event simulated with the equilibrium version of the Rice Convection ...
• #### Laser Pulse Duration Is Critical For the Generation of Plasmonic Nanobubbles ﻿

(2014)
Plasmonic nanobubbles (PNBs) are transient vapor nanobubbles generated in liquid around laser-overheated plasmonic nanoparticles. Unlike plasmonic nanoparticles, PNBs’ properties are still largely unknown due to their ...