L. G. Gray

Search for new physics in the τ lepton plus missing transverse momentum final state in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

A. Tumasyan, W. Adam, Janik Walter Andrejkovic, T. Bergauer et autres

Abstract A search for physics beyond the standard model (SM) in the final state with a hadronically decaying tau lepton and a neutrino is presented. This analysis is based on data recorded by the CMS experiment from proton-proton collisions at a center-of-mass …

Suppression of Excited ϒ States Relative to the Ground State in Pb-Pb Collisions at √s[subscript NN] = 5.02 TeV

A. M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar et autres

The relative yields of ϒ mesons produced in pp and Pb-Pb collisions at √s[subscript NN]=5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the …

Search for R -parity violating supersymmetry in pp collisions at s=13TeV using b jets in a final state with a single lepton, many jets, and high sum of large-radius jet masses

A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres

Results are reported from a search for physics beyond the standard model in proton–proton collisions at a center-of-mass energy of s=13TeV . The search uses a signature of a single lepton, large jet and bottom quark jet multiplicities, and high sum of …

Relative Modification of Prompt ψ(2S) and J/ψ Yields from pp to PbPb Collisions at [square root]sNN =5.02 TeV

A. M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar et autres

Forward–backward asymmetry of Drell–Yan lepton pairs in pp collisions at √s = 7 TeV

S. Chatrchyan, V. Khachatryan, A.M. Sirunyan, A. Tumasyan et autres

A measurement of the forward-backward asymmetry (AFB) of Drell–Yan lepton pairs in pp collisions at √s = 7 TeV is presented. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 5 fb−1. The asymmetry is mea- sured …

Indications of Suppression of Excited Υ States in Pb-Pb Collisions at sNN=2.76 TeV

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres

A comparison of the relative yields of $\ensuremath{\Upsilon}$ resonances in the ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ decay channel in Pb-Pb and $pp$ collisions at a center-of-mass energy per nucleon pair of 2.76 TeV is performed with data collected with the CMS detector at the LHC. Using …

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Inferior Division Third Nerve Paresis From an Orbital Dural Arteriovenous Malformation

L. G. Gray, Steven L. Galetta, Beverly L. Hershey, A. Charles Winkelman et autres

Isolated inferior division third nerve palsies are rare. The authors report a patient with an isolated, pupil-involving inferior division third cranial nerve palsy from an intraorbital dural arteriovenous malformation. Despite spontaneous thrombosis of the malformation, the third nerve palsy persisted. To the …

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Study of photonuclear interaction of muons in rock with the MACRO experiment

G. Battistoni, Marcelo J. Ambrosio, R. Antolini, C. Aramo et autres

We present first results about the measurement of the characteristics of charged hadrons production by atmospheric muons in the rock above MACRO. Selection criteria which allow to discriminate hadron cascades from e.m. showers generated by muons are described. A comparison between the …

Charge asymmetry in collisional depopulation of Na 36s Rydberg atoms

L. G. Gray, Keith B. MacAdam

Impact of low-velocity charged particles on laser-excited 36s Rydberg states of Na in externally applied static electric fields up to 28 V cm -1 drives transitions into the neighbouring Stark energy levels, and the final-state distributions may be inferred by state-selective field …

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SPECT in patients with cortical visual loss.

Isaac E Silverman, Steven L. Galetta, L. G. Gray, Mark L. Moster et autres

Single-photon emission computed tomography (SPECT) with 99mTc-hexamethylpropyleneamine oxime (HMPAO) was used to investigate changes in cerebral blood flow in seven patients with cortical visual impairment. Traumatic brain injury (TBI) was the cause of cortical damage in two patients, cerebral ischemia in two …

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Electron-collision-induced dipole transitions in Na Rydberg atoms: 30s-30p and 30s-29p absolute cross sections

R G Rolfes, L. G. Gray, Oleg P. Makarov, Keith B. MacAdam

An experimental study of the depopulation of Na 30s Rydberg atoms under electron bombardment has been carried out. Electron energies E ranged from 105 to 660 eV corresponding to collision velocities 80 to 200 times the mean orbital speed of the excited …

Collisions of Na+ions with Na Rydberg atoms in electric fields: depopulation cross sections and final-state distributions from 36s and 30p initial states

R G Rolfes, L. G. Gray, Keith B. MacAdam

An experimental study of the depopulation and final-state distribution of Na 36s and 30p Rydberg states under Na + bombardment in the presence of electric fields up to 50 V cm -1 has been carried out. Incident energies E from 171 to …

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