Search Results - "Muchnoi, N.Yu"
-
1
Resonant amplification of a relativistic electron bremsstrahlung on an atom in the undulator field
Published in Physics letters. B (10-04-2023)“…It is shown that the influence of the undulator field on the motion of a relativistic electron leads to a significant increase of the bremsstrahlung cross…”
Get full text
Journal Article -
2
Energy deviation study of BEMS at BEPCII
Published in Nuclear physics. B (01-02-2019)“…The beam energy measurement system (BEMS) at the upgraded Beijing Electron-Positron Collider (BEPCII) is designed to provide beam energy value with the…”
Get full text
Journal Article -
3
A system of beam energy measurement based on the Compton backscattered laser photons for the VEPP-2000 electron–positron collider
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-04-2014)“…The beam energy measurement system for the VEPP-2000 electron-positron collider is described. The method of Compton backscattering of CO laser photons on the…”
Get full text
Journal Article -
4
Search for direct production of the f1(1285) resonance in e+e− collisions
Published in Physics letters. B (01-01-2020)“…A search for direct production of the f1(1285) resonance in e+e− annihilation is performed with the SND detector at the VEPP-2000 e+e− collider. The analysis…”
Get full text
Journal Article -
5
Tau mass measurement at BES-III
Published in EPJ Web of conferences (2019)“…A scan of the threshold region of the process e + e − → τ + τ − with integrated luminosity about 140 pb −1 was performed with the BES-III detector at the…”
Get full text
Journal Article Conference Proceeding -
6
Two-photon exchange contribution in elastic electron-proton scattering, experiment at the VEPP-3 storage ring
Published in EPJ Web of conferences (01-01-2014)“…We describe a precise measurement of the ratio of the (e super(+) p) to (e super(-) p) elastic scattering cross sections. This comparison is sensitive to the…”
Get full text
Journal Article -
7
Observation of a resonant structure in e+e− → ωη and another in e+e− → ωπ0 at center-of-mass energies between 2.00 and 3.08 GeV
Published in Physics letters. B (01-02-2021)“…Born cross sections for the processes e+e−→ωη and e+e−→ωπ0 have been determined for center-of-mass energies between 2.00 and 3.08 GeV with the BESIII detector…”
Get full text
Journal Article -
8
Search for a massless particle beyond the Standard Model in the Σ+ → p + invisible decay
Published in Physics letters. B (01-05-2024)“…A massless particle beyond the Standard Model is searched for in the two-body decay Σ+→p+invisible using (1.0087±0.0044)×1010J/ψ events collected at a…”
Get full text
Journal Article -
9
Determination of spin and parity of D(s)⁎ mesons
Published in Physics letters. B (10-11-2023)“…The spin and parity of the charmed mesons Ds⁎+, D⁎0 and D⁎+ are determined for the first time to be JP=1− with significances greater than 10σ over other…”
Get full text
Journal Article -
10
Precise beam energy measurement in collider experiments
Published in Nuclear and particle physics proceedings (01-06-2017)“…The methods of beam energy determination at actual colliders are reviewed…”
Get full text
Journal Article -
11
Measurement of the absolute branching fraction of Λc+→pKS0η decays
Published in Physics letters. B (10-06-2021)“…Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute…”
Get full text
Journal Article -
12
Measurement of branching fractions for D meson decaying into ϕ meson and a pseudoscalar meson
Published in Physics letters. B (10-11-2019)“…The four decay modes D0→ϕπ0, D0→ϕη, D+→ϕπ+, and D+→ϕK+ are studied by using a data sample taken at the centre-of-mass energy s=3.773 GeV with the BESIII…”
Get full text
Journal Article -
13
Measurement of the phase between strong and electromagnetic amplitudes of J/ψ decays
Published in Physics letters. B (10-04-2019)“…Using 16 energy points of e+e− annihilation data collected in the vicinity of the J/ψ resonance with the BESIII detector and with a total integrated luminosity…”
Get full text
Journal Article -
14
Observation of the decay Λc+→Σ−π+π+π0
Published in Physics letters. B (10-09-2017)“…We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilations with an integrated luminosity of 567 pb−1 at s=4.6 GeV…”
Get full text
Journal Article -
15
Measurement of Γ e e × B μ μ for ψ(2S) meson
Published in Physics letters. B (01-06-2018)Get full text
Journal Article -
16
Measurement of cross sections of the interactions e+e−→ϕϕω and e+e−→ϕϕϕ at center-of-mass energies from 4.008 to 4.600 GeV
Published in Physics letters. B (01-11-2017)“…Using data samples collected with the BESIII detector at the BEPCII collider at six center-of-mass energies between 4.008 and 4.600 GeV, we observe the…”
Get full text
Journal Article -
17
The beam energy measurement system for the Beijing electron–positron collider
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2011)“…The beam energy measurement system (BEMS) for the upgraded Beijing electron–positron collider BEPC-II is described. The system is based on measuring the…”
Get full text
Journal Article -
18
Dark photon search in the mass range between 1.5 and 3.4 GeV/c2
Published in Physics letters. B (01-11-2017)“…Using a data set of 2.93 fb−1 taken at a center-of-mass energy s=3.773 GeV with the BESIII detector at the BEPCII collider, we perform a search for an extra…”
Get full text
Journal Article -
19
High precision energy calibration with resonant depolarization at the VEPP-4M collider
Published in Nuclear and particle physics proceedings (01-04-2016)“…At the VEPP-4M collider the record accuracy of 10−6 of an absolute beam energy calibration was achieved with the resonant depolarization technique in the…”
Get full text
Journal Article -
20
Measurement of J / ψ → γ η c decay rate and η c parameters at KEDR
Published in Physics letters. B (01-11-2014)Get full text
Journal Article