Search Results - "GERASSIMOV, S"
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Design and construction of the fast photon detection system for COMPASS RICH-1
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-04-2010)“…New photon detectors, based on the use of multi-anode photo-multiplier tubes coupled to individual lens telescopes and read out with a dedicated read-out…”
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Dark Matter Search in Missing Energy Events with NA64
Published in Physical review letters (20-09-2019)“…A search for sub-GeV dark matter production mediated by a new vector boson A′, called a dark photon, is performed by the NA64 experiment in missing energy…”
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Search for Axionlike and Scalar Particles with the NA64 Experiment
Published in Physical review letters (21-08-2020)“…We carried out a model-independent search for light scalar (s) and pseudoscalar axionlike (a) particles that couple to two photons by using the high-energy…”
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Search for a Hypothetical 16.7 MeV Gauge Boson and Dark Photons in the NA64 Experiment at CERN
Published in Physical review letters (08-06-2018)“…We report the first results on a direct search for a new 16.7 MeV boson (X) which could explain the anomalous excess of e^{+}e^{-} pairs observed in the…”
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Search for a New B-L Z' Gauge Boson with the NA64 Experiment at CERN
Published 22-10-2022“…Phys.Rev.Lett. 129, 161801 (2022) A search for a new $Z'$ gauge boson associated with (un)broken B-L symmetry in the keV-GeV mass range is carried out for the…”
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Software for Tracks and Primary Vertex Reconstruction for the SPD Experiment
Published in Physics of particles and nuclei (01-07-2021)“…The article describes the software development for charged tracks and primary vertex reconstruction for the SPD [ 1 ] experiment at the future NICA collider…”
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Constraints on New Physics in Electron g − 2 from a Search for Invisible Decays of a Scalar, Pseudoscalar, Vector, and Axial Vector
Published in Physical review letters (28-05-2021)“…We performed a search for a new generic X boson, which could be a scalar (S), pseudoscalar (P), vector (V), or an axial vector (A) particle produced in the 100…”
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Search for a New B − L Z ′ Gauge Boson with the NA64 Experiment at CERN
Published in Physical review letters (14-10-2022)Get full text
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Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised protons
Published in Physics letters. B (01-05-2015)“…Measurements of the Collins and Sivers asymmetries for charged pions and charged and neutral kaons produced in semi-inclusive deep-inelastic scattering of high…”
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Probing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel
Published 06-07-2021“…We report the results of a search for a new vector boson ($A'$) decaying into two dark matter particles $\chi_1 \chi_2$ of different mass. The heavier $\chi_2$…”
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Observation of a New Narrow Axial-Vector Meson a1(1420)
Published in Physical review letters (21-08-2015)“…The COMPASS Collaboration at CERN has measured diffractive dissociation of 190 GeV/c pions into the π(-)π(-)π(+) final state using a stationary hydrogen…”
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Triangle Singularity as the Origin of the a1( 1420 )
Published in Physical review letters (20-08-2021)“…The COMPASS Collaboration experiment recently discovered a new isovector resonancelike signal with axial-vector quantum numbers, the a1( 1420 ) , decaying to…”
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Constraints on New Physics in the Electron g-2 from a Search for Invisible Decays of a Scalar, Pseudoscalar, Vector, and Axial Vector
Published 03-02-2021“…Phys. Rev. Lett. 126, 211802 (2021) We performed a search for a new generic $X$ boson, which could be a scalar ($S$), pseudoscalar ($P$), vector ($V$) or an…”
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The spin structure function g(1)(p) of the proton and a test of the Bjorken sum rule
Published in Physics letters. B (10-02-2016)“…New results for the double spin asymmetry A(1)(p) and the proton longitudinal spin structure function g(1)(p) are presented. They were obtained by the COMPASS…”
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II – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Sivers asymmetries
Published in Physics letters. B (31-10-2012)“…The COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering…”
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Search for muoproduction of X(3872) at COMPASS and indication of a new state X˜(3872)
Published in Physics letters. B (10-08-2018)“…We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ using COMPASS data collected with incoming muons of 160 GeV/c…”
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Search for Axionlike and Scalar Particles with the NA64 Experiment
Published 02-08-2020“…Phys. Rev. Lett. 125, 081801 (2020) We carried out a model-independent search for light scalar (s) and pseudoscalar axionlike (a) particles that couple to two…”
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I – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Collins asymmetries
Published in Physics letters. B (31-10-2012)“…The COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering…”
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High-Statistics Measurement of Collins and Sivers Asymmetries for Transversely Polarized Deuterons
Published in Physical review letters (06-09-2024)“…New results are presented on a high-statistics measurement of Collins and Sivers asymmetries of charged hadrons produced in deep inelastic scattering of muons…”
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