Search
Results
-
Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC
(2010)Journal of High Energy PhysicsResults on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (φ). Short-range correlations in Δη, which are studied in minimum bias events, are characterized using a simple "independent cluster" parametrization in order to quantify ...Journal Article -
Experimental Analysis of the Line-Side Interphase Transformer Magnetizing Currents in Three-Phase Output Voltage Type Rectifiers
(2010)Electronics JournalMagnetizing currents of a line side interphase transformer applied in a three phase twelve pulse voltage output type rectifiers are analyzed. Waveforms of the transformer voltages are derived. It is shown that fluxes of the core limbs contain a significant zero sequence component, resulting in a stray flux and high magnetizing currents. Application of three single phase cores is proposed. The results are experimentally verified.Journal Article -
On the relation between hybrid and pure spinor string theory
(2010)Journal of High Energy PhysicsIn this paper we revisit Berkovits’ pure spinor formalism in lower dimensions. We are particularly interested in relating a six-dimensional pure spinor action previously constructed in the literature to other superstring formalisms. In order to gain some insight into six-dimensional pure spinors, we first derive their action by gauge-fixing the classical six-dimensional Green-Schwarz action. We then consider a hybrid pure spinor construction ...Journal Article -
Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at √s=0.9 and 2.36 TeV
(2010)Journal of High Energy PhysicsMeasurements of inclusive charged-hadron transverse-momentum and pseudorapidity distributions are presented for proton-proton collisions at √s=0.9 and 2.36 TeV. The data were collected with the CMS detector during the LHC commissioning in December 2009. For non-single-diffractive interactions, the average charged-hadron transverse momentum is measured to be 0.46 ± 0.01 (stat.) ± 0.01 (syst.) GeV/c at 0.9 TeV and 0.50 ± 0.01 (stat.) ± 0.01 ...Journal Article