Eur Phys J C Part Fields
September 2018
A measurement is presented of the cross section in collisions at , using data recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of . The product of the inclusive cross section and branching fraction is measured to be , in agreement with the standard model expectation, computed at next-to-next-to-leading order accuracy in perturbative quantum chromodynamics. The measurement is used to validate new analysis techniques relevant for future measurements of lepton production.
View Article and Find Full Text PDFEur Phys J C Part Fields
June 2018
The nuclear modification factors of and mesons are measured in collisions at a centre-of-mass energy per nucleon pair of . The analysis is based on and data samples collected by CMS at the LHC in 2015, corresponding to integrated luminosities of 464 and 28 , respectively. The measurements are performed in the dimuon rapidity range of as a function of centrality, rapidity, and transverse momentum ( ) from in the most forward region and up to 50 .
View Article and Find Full Text PDFMeasurements are presented of the lifetimes of the , , , and hadrons using the decay channels , , , , , and . The data sample, corresponding to an integrated luminosity of 19.7 , was collected by the CMS detector at the LHC in proton-proton collisions at .
View Article and Find Full Text PDFEur Phys J C Part Fields
November 2018
The production of a boson, decaying to two charged leptons, in association with jets in proton-proton collisions at a centre-of-mass energy of 13 is measured. Data recorded with the CMS detector at the LHC are used that correspond to an integrated luminosity of 2.19 .
View Article and Find Full Text PDFEur Phys J C Part Fields
November 2018
Measurements of and mesons are performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of , collected with the CMS detector at the LHC at a centre-of-mass energy of . The analysis studies -wave meson decays into and , where the and mesons are identified using the decays and . The masses of the -wave meson states are measured and the natural width of the state is determined.
View Article and Find Full Text PDFEur Phys J C Part Fields
November 2018
The mass of the top quark is measured using a sample of events collected by the CMS detector using proton-proton collisions at at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9 .
View Article and Find Full Text PDFEur Phys J C Part Fields
September 2018
A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a lepton, is presented. The search considers final states with an electron or a muon, one or two leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton-proton collisions at with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.
View Article and Find Full Text PDFEur Phys J C Part Fields
September 2018
A measurement is presented of the effective leptonic weak mixing angle ( ) using the forward-backward asymmetry of Drell-Yan lepton pairs ( and ) produced in proton-proton collisions at at the CMS experiment of the LHC. The data correspond to integrated luminosities of 18.8 and in the dimuon and dielectron channels, respectively, containing 8.
View Article and Find Full Text PDFEur Phys J C Part Fields
August 2018
Pseudorapidity, transverse momentum, and multiplicity distributions are measured in the pseudorapidity range for charged particles with transverse momenta satisfying in proton-proton collisions at a center-of-mass energy of . Measurements are presented in three different event categories. The most inclusive of the categories corresponds to an inelastic data set, while the other two categories are exclusive subsets of the inelastic sample that are either enhanced or depleted in single diffractive dissociation events.
View Article and Find Full Text PDFA search for a signal consistent with the type-III seesaw mechanism in events with three or more electrons or muons is presented. The data sample consists of proton-proton collisions at sqrt[s]=13 TeV collected by the CMS experiment at the LHC in 2016 and corresponds to an integrated luminosity of 35.9 fb^{-1}.
View Article and Find Full Text PDFThe first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of sqrt[s_{NN}]=8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets.
View Article and Find Full Text PDFHydrogen generation from complex substrates composed of simple sugars has the potential to mitigate future worldwide energy demand. The biohydrogen potential of a sequential microaerobic dark- and photo-fermentative system was investigated using immobilized Rhodobacter capsulatus JP91. Biological hydrogen production from glucose was carried out using a batch process and a bench-scale bioreactor.
View Article and Find Full Text PDFThe differential production cross sections of B^{±} mesons are measured via the exclusive decay channels B^{±}→J/ψK^{±}→μ^{+}μ^{-}K^{±} as a function of transverse momentum in pp and Pb-Pb collisions at a center-of-mass energy sqrt[s_{NN}]=5.02 TeV per nucleon pair with the CMS detector at the LHC. The pp(Pb-Pb) data set used for this analysis corresponds to an integrated luminosity of 28.
View Article and Find Full Text PDFResults are reported from a search for supersymmetric particles in proton-proton collisions in the final state with a single lepton, multiple jets, including at least one b-tagged jet, and large missing transverse momentum. The search uses a sample of proton-proton collision data at sqrt[s]=13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb^{-1}.
View Article and Find Full Text PDFA search for charged Higgs bosons produced via vector boson fusion and decaying into W and Z bosons using proton-proton collisions at sqrt[s]=13 TeV is presented. The data sample corresponds to an integrated luminosity of 15.2 fb^{-1} collected with the CMS detector in 2015 and 2016.
View Article and Find Full Text PDFRosiglitazone is in the thiazolidinedione class of drugs used in the treatment of type 2 diabetes mellitus. It works as an insulin sensitizer by binding to the peroxisome proliferator-activated receptor gamma. We investigated the effects of prenatally administered rosiglitazone on pyramidal cell numbers and morphologies in the hippocampus at postnatal period using histochemical and stereological techniques, congenital morphological properties and the number of offspring in rats.
View Article and Find Full Text PDFBackground: Masked hypertension is described as high ambulatory blood pressure measurements (ABPM) where office blood pressure measurements are normal. Effect of hypertension on cognitive functions is well known. However, the effect of masked hypertension on cognitive functions is unclear.
View Article and Find Full Text PDFThe production of jets in association with Z bosons, reconstructed via the μ^{+}μ^{-} and e^{+}e^{-} decay channels, is studied in pp and, for the first time, in Pb-Pb collisions. Both data samples were collected by the CMS experiment at the LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV.
View Article and Find Full Text PDFA search is reported for a narrow vector resonance decaying to quark-antiquark pairs in proton-proton collisions at sqrt[s]=13 TeV, collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.7 fb^{-1}.
View Article and Find Full Text PDFThe first measurement of the jet mass [Formula: see text] of top quark jets produced in [Formula: see text] events from pp collisions at [Formula: see text] [Formula: see text] is reported for the jet with the largest transverse momentum [Formula: see text] in highly boosted hadronic top quark decays. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.7[Formula: see text].
View Article and Find Full Text PDFSearches are presented for direct production of top or bottom squark pairs in proton-proton collisions at the CERN LHC. Two searches, based on complementary techniques, are performed in all-jet final states that are characterized by a significant imbalance in transverse momentum. An additional search requires the presence of a charged lepton isolated from other activity in the event.
View Article and Find Full Text PDFBiohydrogen production via fermentative routes offers considerable advantages in waste recycling and sustainable energy production. This can be realized by single-stage dark or photofermentative processes, or by a two-stage integrated process; the latter offering the higher production yields due to complete conversion of sugar substrates into H and CO. However, problems arising from the integration of these two processes limit its scale-up and implementation.
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