The type specimens for names of bee taxa in the genus Andrena Fabricius, 1775, described by V.B. Popov and which are deposited in the Zoological Institute, Russian Academy of Sciences (St. Petersburg) are reviewed. Primary types of 19 taxa are illustrated and detailed information is provided. New synonymies are established for Andrena chengtehensis Yasumatsu, 1935 (= A. nova Popov, 1940, syn. nov.) and A. skorikovi Popov, 1940 (=A. firuzaensis Popov, 1940, syn. nov.; =A. firuzaensis popovella Gusenleitner & Schwarz, 2002, syn. nov.; = Andrena iranella Popov, 1940, syn. nov.). Based on study of the the lectotype, we consider Andrena discophora transhissarica Popov, 1958, stat. rev., at the subspecific level, and not as a distinct species, as opposed to Shebl & Tadauchi (2011). Lectotypes are here designated for the following twelve nominal taxa: Andrena alashanica Popov, 1949, A. discophora transhissarica Popov, 1958, A. eoa Popov, 1949, A. fedtschenkoi djumensis Popov, 1947, A. firuzaensis Popov, 1940, A. iranella Popov, 1940, A. lebedevi Popov, 1940, A. nanshanica Popov, 1940, A. nova Popov, 1940, A. shakuensis Popov, 1949, A. subconsobrina Popov, 1949, and A. tadzhica Popov, 1949.
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http://dx.doi.org/10.11646/zootaxa.5301.4.1 | DOI Listing |
Eur Phys J C Part Fields
December 2024
Eur Phys J C Part Fields
August 2024
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August 2024
A study of the anomalous couplings of the Higgs boson to vector bosons, including -violation effects, has been conducted using its production and decay in the WW channel. This analysis is performed on proton-proton collision data collected with the CMS detector at the CERN LHC during 2016-2018 at a center-of-mass energy of 13 TeV, and corresponds to an integrated luminosity of 138 . The different-flavor dilepton final state is analyzed, with dedicated categories targeting gluon fusion, electroweak vector boson fusion, and associated production with a W or Z boson.
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July 2024
A search for and production in the final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133 collected at a center-of-mass energy of 13 with the CMS detector at the CERN LHC. The analysis introduces several novel techniques for deriving and validating a multi-dimensional background model based on control samples in data.
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May 2024
Authors Affiliated with an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland.
A search for exotic decays of the Higgs boson () with a mass of 125 to a pair of light pseudoscalars is performed in final states where one pseudoscalar decays to two quarks and the other to a pair of muons or leptons. A data sample of proton-proton collisions at corresponding to an integrated luminosity of 138 recorded with the CMS detector is analyzed. No statistically significant excess is observed over the standard model backgrounds.
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