6,909 research outputs found
The kaon semileptonic form factor in Nf=2+1 domain wall lattice QCD with physical light quark masses
We present the first calculation of the kaon semileptonic form factor with
sea and valence quark masses tuned to their physical values in the continuum
limit of 2+1 flavour domain wall lattice QCD. We analyse a comprehensive set of
simulations at the phenomenologically convenient point of zero momentum
transfer in large physical volumes and for two different values of the lattice
spacing. Our prediction for the form factor is f+(0)=0.9685(34)(14) where the
first error is statistical and the second error systematic. This result can be
combined with experimental measurements of K->pi decays for a determination of
the CKM-matrix element for which we predict |Vus|=0.2233(5)(9) where the first
error is from experiment and the second error from the lattice computation.Comment: 21 pages, 7 figures, 6 table
Obesity and the Microvasculature: A Systematic Review and Meta-Analysis
10.1371/journal.pone.0052708PLoS ONE82
Evidence for at center-of-mass energies from 4.009 to 4.360 GeV
Using data samples collected at center-of-mass energies of =
4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the
BEPCII collider, we perform a search for the process
and find evidence for and
with statistical significances of 3.0 and
3.4, respectively. The Born cross sections
, as well as their upper limits at the
90% confidence level are determined at each center-of-mass energy.Comment: 8 pages, 7 figures, 3 table
Frequency and predictors of the lupus low disease activity state in a multi-national and multi-ethnic cohort
published_or_final_versio
Improved measurement of the absolute branching fraction of
By analyzing 2.93 fb of data collected at GeV with the
BESIII detector, we measure the absolute branching fraction , which is consistent with previous measurements within
uncertainties but with significantly improved precision. Combining the Particle
Data Group values of , , and the lifetimes of the and
mesons with the value of measured in this work, we determine the following ratios of
partial widths: and .Comment: 9 pages; 8 figure
Common variants at theCHEK2gene locus and risk of epithelial ovarian cancer
Genome-wide association studies have identified 20 genomic regions associated with risk of epithelial ovarian cancer (EOC), but many additional risk variants may exist. Here, we evaluated associations between common genetic variants [single nucleotide polymorphisms (SNPs) and indels] in DNA repair genes and EOC risk. We genotyped 2896 common variants at 143 gene loci in DNA samples from 15 397 patients with invasive EOC and controls. We found evidence of associations with EOC risk for variants at FANCA, EXO1, E2F4, E2F2, CREB5 and CHEK2 genes (P ≤ 0.001). The strongest risk association was for CHEK2 SNP rs17507066 with serous EOC (P = 4.74 x 10(-7)). Additional genotyping and imputation of genotypes from the 1000 genomes project identified a slightly more significant association for CHEK2 SNP rs6005807 (r (2) with rs17507066 = 0.84, odds ratio (OR) 1.17, 95% CI 1.11-1.24, P = 1.1×10(-7)). We identified 293 variants in the region with likelihood ratios of less than 1:100 for representing the causal variant. Functional annotation identified 25 candidate SNPs that alter transcription factor binding sites within regulatory elements active in EOC precursor tissues. In The Cancer Genome Atlas dataset, CHEK2 gene expression was significantly higher in primary EOCs compared to normal fallopian tube tissues (P = 3.72×10(-8)). We also identified an association between genotypes of the candidate causal SNP rs12166475 (r (2) = 0.99 with rs6005807) and CHEK2 expression (P = 2.70×10(-8)). These data suggest that common variants at 22q12.1 are associated with risk of serous EOC and CHEK2 as a plausible target susceptibility gene.Other Research Uni
B0 s lifetime measurement in the CP-odd decay channel B0 s → J=ψ f 0 (980)
The lifetime of the B0 s meson is measured in the decay channel B0 s → J=ψπþπ− with 880 ≤ Mπþπ− ≤ 1080 MeV=c2, which is mainly a CP-odd state and dominated by the f0ð980Þ resonance. In 10.4 fb−1 of data collected with the D0 detector in Run II of the Tevatron, the lifetime of the B0 s meson is measured to be τ(B0 s) = 1.70 0.14(stat) 0.05(syst) ps. Neglecting CP violation in B0 s=B¯ 0 s mixing, the measurement can be translated into the width of the heavy mass eigenstate of the B0 s, ΓH = 0.59 +- 0.05(stat) 0.02(syst) ps−1
Measurement of differential cross sections for Higgs boson production in the diphoton decay channel in pp collisions at √s = 8 TeV
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMA measurement is presented of differential cross sections for Higgs boson (H) production in pp collisions at √s = 8TeV. The analysis exploits the H→γγ decay in data corresponding to an integrated luminosity of 19.7fb-1 collected by the CMS experiment at the LHC. The cross section is measured as a function of the kinematic properties of the diphoton system and of the associated jets. Results corrected for detector effects are compared with predictions at next-to-leading order and next-to-next-to-leading order in perturbative quantum chromodynamics, as well as with predictions beyond the standard model. For isolated photons with pseudorapidities |η|1/3 and >1/4, the total fiducial cross section is 32±10fbWe acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: the Austrian Federal Ministry of Science, Research and Economy and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport, and the Croatian Science Foundation; the Research Promotion Foundation, Cyprus; the Ministry of Education and Research, Estonian Research Council via IUT23-4 and IUT23- 6 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucléaire et de Physique des Particules/CNRS, and Commissariat à l’Énergie Atomique et aux Énergies Alternatives/CEA, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Innovation Office, Hungary; the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Ministry of Science, ICT and Future Planning, and National Research Foundation (NRF), Republic of Korea; the Lithuanian Academy of Sciences; the Ministry of Education, and University of Malaya (Malaysia); the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Centre, Poland; the Fundação para a Ciência e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, and the Russian Foundation for Basic Research; the Ministry of Education, Science and Technological Development of Serbia; the Secretaría de Estado de Investigación, Desarrollo e Innovación and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the Ministry of Science and Technology, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the National Academy of Sciences of Ukraine, and State Fund for Fundamental Researches, Ukraine; the Science and Technology Facilities Council, UK; the US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET(European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foun-dation for Polish Science, cofinanced from European Union, Regional Development Fund; the OPUS program of the National Science Center (Poland); the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the National PrioritiesResearch Program by QatarNationalResearch Fund; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand); and the Welch Foundation, contract C-184
Inclusive Production of the X(4140) State in pp¯ Collisions at D0
We present a study of the inclusive production of the X(4140) state with the decay to the J/ψφ final state in hadronic collisions. Based on 10.4 fb-1 of pp¯ collision data collected by the D0 experiment at the Fermilab Tevatron collider, we report the first evidence for the prompt production of an X(4140) state and find the fraction of X(4140) events originating from b hadrons to be fb=0.39±0.07(stat)±0.10(syst). The ratio of the nonprompt X(4140) production rate to the Bs0 yield in the same channel is R=0.19±0.05(stat)±0.07(syst). The values of the mass M=4152.5±1.7(stat)-5.4+6.2(syst) MeV and width Γ=16.3±5.6(stat)±11.4(syst) MeV are consistent with previous measurements.LAFEX Centro Brasileiro de Pesquisas FísicasUniversidade Do Estado Do Rio de JaneiroUniversidade Federal Do ABCUniversity of Science and Technology of ChinaUniversidad de Los AndesCenter for Particle Physics Faculty of Mathematics and Physics Charles UniversityCzech Technical University in PragueInstitute of Physics Academy of Sciences of the Czech RepublicUniversidad San Francisco de QuitoLPC Université Blaise Pascal CNRS/IN2P3LPSC Université Joseph Fourier Grenoble 1 CNRS/IN2P3 Institut National Polytechnique de GrenobleCPPM Aix-Marseille Université CNRS/IN2P3LAL Université Paris-Sud CNRS/IN2P3LPNHE Universités Paris VI and VII CNRS/IN2P3CEA Irfu SPPIPHC Université de Strasbourg CNRS/IN2P3IPNL Université Lyon 1 CNRS/IN2P3 Université de LyonIII. Physikalisches Institut A RWTH Aachen UniversityPhysikalisches Institut Universität FreiburgII. Physikalisches Institut Georg-August-Universität GöttingenInstitut für Physik Universität MainzLudwig-Maximilians-Universität MünchenPanjab UniversityDelhi UniversityTata Institute of Fundamental ResearchUniversity College DublinKorea Detector Laboratory Korea UniversityCINVESTAVNikhef Science ParkRadboud University NijmegenJoint Institute for Nuclear ResearchInstitute for Theoretical and Experimental PhysicsMoscow State UniversityInstitute for High Energy PhysicsPetersburg Nuclear Physics InstituteInstitució Catalana de Recerca i Estudis Avançats (ICREA) Institut de Física d'Altes Energies (IFAE)Uppsala UniversityTaras Shevchenko National University of KyivLancaster UniversityImperial College LondonUniversity of ManchesterUniversity of ArizonaUniversity of California RiversideFlorida State UniversityFermi National Accelerator LaboratoryUniversity of Illinois at ChicagoNorthern Illinois UniversityNorthwestern UniversityIndiana UniversityPurdue University CalumetUniversity of Notre DameIowa State UniversityUniversity of KansasLouisiana Tech UniversityNortheastern UniversityUniversity of MichiganMichigan State UniversityUniversity of MississippiUniversity of NebraskaRutgers UniversityPrinceton UniversityState University of New YorkUniversity of RochesterBrookhaven National LaboratoryLangston UniversityUniversity of OklahomaOklahoma State UniversityOregon State UniversityBrown UniversityUniversity of TexasSouthern Methodist UniversityRice UniversityUniversity of VirginiaUniversity of WashingtonAugustana CollegeUniversity of LiverpoolDESYCONACyTSLACUniversity College LondonCentro de Investigacion en Computacion-IPNUniversidade Estadual PaulistaKarlsruher Institut für Technologie (KIT) Steinbuch Centre for Computing (SCC)Office of Science U.S. Department of EnergyAmerican Association for the Advancement of ScienceKiev Institute for Nuclear ResearchUniversity of MarylandEuropean Orgnaization for Nuclear Research (CERN)Universidade Estadual Paulist
- …
