Now showing items 819-838 of 2140

• #### 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$$\sqrt{s_{\mathrm{N}\;\mathrm{N}}}=5.02$$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 ...
• #### Joint assembly and genetic mapping of the Atlantic horseshoe crab genome reveals ancient whole genome duplication ﻿

(2014)
Horseshoe crabs are marine arthropods with a fossil record extending back approximately 450 million years. They exhibit remarkable morphological stability over their long evolutionary history, retaining a number of ancestral ...
• #### Joint inversion of receiver functions and surface waves with enhanced preconditioning on densely distributed CNDSN stations: Crustal and upper mantle structure beneath China ﻿

(2016)
We present shear wave velocity structure beneath China by joint modeling of teleseismic receiver function and Rayleigh wave group velocity dispersion data observed at +1000 permanent broadband seismic stations in the Chinese ...
• #### 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 ...
• #### Keeping the rhythm: light/dark cycles during postharvest storage preserve the tissue integrity and nutritional content of leafy plants ﻿

(2015)
Background: The modular body structure of plants enables detached plant organs, such as postharvest fruits and vegetables, to maintain active responsiveness to environmental stimuli, including daily cycles of light and ...

(2006)
• #### Knot Concordance and Homology Cobordism ﻿

(2013-06)
We consider the question: “If the zero-framed surgeries on two oriented knots in S3 are Z-homology cobordant, preserving the homology class of the positive meridians, are the knots themselves concordant?” We show that this ...
• #### 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 ...