A. Guskov

activity

20062025

most citedThe COMPASS Experiment at CERN

485 citations · 1.4k across the 21 of their papers we have counts for

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20 papers · 1 filter

hep-ex2025★ 1 cited

Evidence of transverse polarization of $Ξ^{0}$ hyperon in $ψ (3686) \to Ξ^{0} Ξ ˉ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we report an evidence of $Ξ^{0}$ transverse polarization with a sign…

hep-ex2024

Multiplicities of positive and negative pions, kaons and unidentified hadrons from deep-inelastic scattering of muons off a liquid hydrogen target

G. D. Alexeev, M. G. Alexeev, C. Alice +166

The multiplicities of positive and negative pions, kaons and unidentified hadrons produced in deep-inelastic scattering are measured in bins of the Bjorken scaling variable $x$ , th…

hep-ex2024★ 2 cited

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to η ψ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same data…

hep-ex2023★ 7 cited

Search for the decay $χ_{c 1} (3872) \to π^{+} π^{-} χ_{c 1}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

Using a data sample corresponding to an integrated luminosity of 10.9 fb $^{- 1}$ collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for t…

hep-ex2023★ 12 cited

Measurement of $e^{+} e^{-} \to η J / ψ$ Cross Section from $s =$ 3.808 GeV to 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

Using data samples with an integrated luminosity of 22.42 fb $^{- 1}$ collected by the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the $e^{…

hep-ex2022

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section in the vicinity of 3.872 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +566

We report a measurement of the cross section for the process $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ around the $X (3872)$ mass in search for the direct formation of $e^{+} e^{-} \to X (3872)$ through the tw…

hep-ex2021★ 11 cited

First Measurement of the Absolute Branching Fraction of $Λ \to p μ^{-} ν ˉ_{μ}$

M. Ablikim, M. N. Achasov, P. Adlarson +504

The absolute branching fraction of $Λ \to p μ^{-} ν ˉ_{μ}$ is reported for the first time based on an $e^{+} e^{-}$ annihilation sample of ten billion $J / ψ$ events collected with the BESII…

hep-ex2020★ 192 cited

Observation of a near-threshold structure in the $K^{+}$ recoil-mass spectra in $e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{*-} D^{0})$

BESIII Collaboration, M. Ablikim, M. N. Achasov +494

We report a study of the processes of $e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{*-} D^{0})$ based on $e^{+} e^{-}$ annihilation samples collected with the BESIII detector operating at BEPCII at…

hep-ex2020★ 12 cited

Observation of the Doubly Cabibbo-Suppressed Decay $D^{+} \to K^{+} π^{+} π^{-} π^{0}$ and Evidence for $D^{+} \to K^{+} ω$

BESIII Collaboration

Using $2.93 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the doubly Cabibbo-suppress…

hep-ex2019★ 25 cited

Cross section measurement of $e^{+} e^{-} \to η^{'} J / ψ$ from $s = 4.178$ to $4.600$ GeV

M. Ablikim, M. N. Achasov, P. Adlarson +477

The cross section of the process $e^{+} e^{-} \to η^{'} J / ψ$ is measured at center-of-mass energies from $s =$ 4.178 to 4.600 GeV using data samples corresponding to a total…

hep-ex2019★ 46 cited

Measurement of the cross section for $e^{+} e^{-} \to Ξ^{-} Ξ ˉ^{+}$ and observation of an excited $Ξ$ baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +483

Using a total of 11.0 fb $^{- 1}$ of $e^{+} e^{-}$ collision data with center-of-mass energies between 4.009 GeV and 4.6 GeV and collected with the BESIII detector at BEPCII, we measu…

hep-ex2019★ 15 cited

Precision measurement of the branching fractions of $η^{'}$ decays

M. Ablikim, M. N. Achasov, S. Ahmed +460

Based on a sample of $(1310.6 \pm 7.0) \times 1 0^{6} J / ψ$ events collected with the BESIII detector, we present measurements of $J / ψ$ and $η^{'}$ absolute branching fractions usin…

hep-ex2019★ 6 cited

Measurement of the branching fraction of $J / ψ \to ω η^{'} π^{+} π^{-}$ and search for $J / ψ \to ω X (1835), X (1835) \to η^{'} π^{+} π^{-}$ decay

BESIII Collaboration

Using a sample of $1.31 \times 1 0^{9}$ $J / ψ$ events collected by the BESIII detector at BEPCII during 2009 and 2012, we study the $J / ψ \to ω η^{'} π^{+} π^{-}$ hadronic process.…

hep-ex2019★ 47 cited

Observation of the decay $X (3872) \to π^{0} χ_{c 1} (1 P)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +468

Using a total of $9.0 fb^{- 1}$ of $e^{+} e^{-}$ collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for the proces…

hep-ex2009★ 47 cited

Measurement of the Longitudinal Spin Transfer to Lambda and Anti-Lambda Hyperons in Polarised Muon DIS

The COMPASS Collaboration, M. Alekseev

The longitudinal polarisation transfer from muons to lambda and anti-lambda hyperons, D_LL, has been studied in deep inelastic scattering off an unpolarised isoscalar target at the…

hep-ex2009★ 43 cited

Gluon Polarisation in the Nucleon and Longitudinal Double Spin Asymmetries from Open Charm Muoproduction

COMPASS Collaboration, M. Alekseev

The gluon polarisation in the nucleon has been determined by detecting charm production via D0 meson decay to charged K and pi in polarised muon scattering off a longitudinally pol…

hep-ex2007★ 12 cited

Comments on TPC and RPC calibrations reported by the HARP Collaboration

V. Ammosov

The HARP Collaboration recently published calibrations of their TPC and RPC detectors, and differential cross-sections of large-angle pion production in proton-nucleus collisions.…

hep-ex2007★ 93 cited

The Polarised Valence Quark Distribution from semi-inclusive DIS

COMPASS Collaboration, M. Alekseev

The semi-inclusive difference asymmetry A^{h^{+}-h^{-}} for hadrons of opposite charge has been measured by the COMPASS experiment at CERN. The data were collected in the years 200…

hep-ex2007★ 485 cited

The COMPASS Experiment at CERN

COMPASS Collaboration, P. Abbon

The COMPASS experiment makes use of the CERN SPS high-intensitymuon and hadron beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons. One or mor…

hep-ex2006★ 299 cited

The Deuteron Spin-dependent Structure Function g1d and its First Moment

The COMPASS Collaboration, V. Yu. Alexakhin

We present a measurement of the deuteron spin-dependent structure function g1d based on the data collected by the COMPASS experiment at CERN during the years 2002-2004. The data pr…

Evidence of transverse polarization of Ξ0 hyperon in ψ(3686)→Ξ0Ξˉ0

Multiplicities of positive and negative pions, kaons and unidentified hadrons from deep-inelastic scattering of muons off a liquid hydrogen target

Cross section measurement of e+e−→ηψ(2S) and search for e+e−→ηX~(3872)

Search for the decay χc1​(3872)→π+π−χc1​

Measurement of e+e−→ηJ/ψ Cross Section from s​= 3.808 GeV to 4.951 GeV

Measurement of the e+e−→π+π−J/ψ cross section in the vicinity of 3.872 GeV

First Measurement of the Absolute Branching Fraction of Λ→pμ−νˉμ​

Observation of a near-threshold structure in the K+ recoil-mass spectra in e+e−→K+(Ds−​D∗0+Ds∗−​D0)

Observation of the Doubly Cabibbo-Suppressed Decay D+→K+π+π−π0 and Evidence for D+→K+ω

Cross section measurement of e+e−→η′J/ψ from s​=4.178 to 4.600 GeV

Measurement of the cross section for e+e−→Ξ−Ξˉ+ and observation of an excited Ξ baryon

Precision measurement of the branching fractions of η′ decays

Measurement of the branching fraction of J/ψ→ωη′π+π− and search for J/ψ→ωX(1835),X(1835)→η′π+π− decay

Observation of the decay X(3872)→π0χc1​(1P)