Mikhail N Achasov
Budker Institute of Nuclear Physics
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Featured researches published by Mikhail N Achasov.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2000
Mikhail N Achasov; V. Aulchenko; S. E. Baru; K. I. Beloborodov; A. V. Berdyugin; A. G. Bogdanchikov; A. V. Bozhenok; A. D. Bukin; D.A. Bukin; S. V. Burdin; T. V. Dimova; S. I. Dolinsky; A. A. Drozdetsky; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; A. A. Korol; S. V. Koshuba; G. Kukartsev; E. V. Pakhtusova; V.M. Popov; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; V. Sidorov; Zurab K. Silagadze; Y. Usov; A. V. Vasiljev
Abstract The Spherical Neutral Detector (SND) operates at VEPP-2M collider in Novosibirsk studying e + e − annihilation in the energy range up to 1.4xa0GeV. Detector consists of a fine granulated spherical scintillation calorimeter with 1632 NaI(Tl) crystals, two cylindrical drift chambers with 10 layers of sense wires, and a muon system made of streamer tubes and plastic scintillation counters. The detector design, performance, data acquisition and processing are described.The Spherical Neutral Detector (SND) operates at VEPP-2M collider in Novosibirsk studying e^+e^- annihilation in the energy range up to 1.4 GeV. Detector consists of a fine granulated spherical scintillation calorimeter with 1632 NaI(Tl) crystals, two cylindrical drift chambers with 10 layers of sense wires, and a muon system made of streamer tubes and plastic scintillation counters. The detector design, performance, data acquisition and processing are described.
Physics Letters B | 1998
Mikhail N Achasov; V.M. Aulchenko; A. V. Berdyugin; A. V. Bozhenok; A.D. Bukin; D.A. Bukin; S. V. Burdin; T. V. Dimova; S. I. Dolinsky; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; I.A. Koop; A. A. Korol; S. V. Koshuba; E. V. Pakhtusova; E.A Perevedentsev; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; Yu. M. Shatunov; V. Sidorov; Zurab K. Silagadze; A.N. Skrinsky; Y. Usov; Yu. S. Velikzhanin
In the SND experiment at the VEPP-2M electron-positron collider the PHI(1020)--->PI0+PI0+GAMMA decay was studied. The branching ratio B(PHI--->PI0+PI0+GAMMA)=(1.14+-0.10+-0.12)x10^{-4} was measured. It was shown, that the F0(980)GAMMA mechanism dominates in this decay and the 4-quark model of F0(980) describes our data most consistently.Abstract In the SND experiment at VEPP-2M e + e − collider the φ (1020)→ π 0 π 0 γ decay was studied. Its branching ratio B ( φ → π 0 π 0 γ )=(1.14±0.10±0.12)·10 −4 was measured. It was shown, that f 0 (980) γ mechanism dominates in this decay. Corresponding branching ratio B ( φ → f 0 γ )=(3.42±0.30±0.36)·10 −4 was obtained.
Physics Letters B | 2000
Mikhail N Achasov; S. E. Baru; K. I. Beloborodov; A. V. Berdyugin; A. V. Bozhenok; A. D. Bukin; D.A. Bukin; S. V. Burdin; T. V. Dimova; A. A. Drozdetsky; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; A. A. Korol; I. A. Koop; S. V. Koshuba; G. Kukartsev; A. A. Mamutkin; E. V. Pakhtusova; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; Yu. M. Shatunov; V. Sidorov; Zurab K. Silagadze; A.N. Skrinsky; A. A. Valishev; A. V. Vasiljev
In the SND experiment at VEPP-2M
Physics Letters B | 1998
Mikhail N Achasov; V.M. Aulchenko; S. E. Baru; A. V. Berdyugin; A. V. Bozhenok; A.D. Bukin; D.A. Bukin; S. V. Burdin; T. V. Dimova; S.I. Dolinski; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; P. M. Ivanov; A. A. Korol; S. V. Koshuba; A.P. Lysenko; E. V. Pakhtusova; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; Yu. M. Shatunov; V. Sidorov; Zurab K. Silagadze; A.N. Skrinsky; Y. Usov
e^+e^-
Physics Letters B | 2000
Mikhail N Achasov; S. E. Baru; K. I. Beloborodov; A. V. Berdyugin; A. V. Bozhenok; A. D. Bukin; D.A. Bukin; S. V. Burdin; T. V. Dimova; S. I. Dolinsky; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; A. A. Korol; M. S. Korostelev; S. V. Koshuba; A. A. Mamutkin; E. V. Pakhtusova; E. E. Pyata; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; Yu. M. Shatunov; V. Sidorov; Zurab K. Silagadze; A.N. Skrinsky; A. V. Vasiljev
collider the
Physics Letters B | 2000
Mikhail N Achasov; K. I. Beloborodov; A. V. Berdyugin; A. G. Bogdanchikov; A. V. Bozhenok; D.A. Bukin; S. V. Burdin; Vladimir Golubev; T. V. Dimova; A. A. Drozdetsky; V. P. Druzhinin; M. S. Dubrovin; Vladimir N. Ivanchenko; A. A. Korol; S. V. Koshuba; G. Kukartsev; I. N. Nesterenko; E. V. Pakhtusova; E. A. Perevedentsev; V.M. Popov; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; Yu. M. Shatunov; V. Sidorov; Zurab K. Silagadze; A.N. Skrinsky; A. G. Skripkin; Y. Usov; A. A. Valishev
phi(1020)topi^0pi^0gamma
Jetp Letters | 2001
Mikhail N Achasov; K. I. Beloborodov; A. V. Berdyugin; A. G. Bogdanchikov; A. V. Bozhenok; D. A. Bukin; S. V. Burdin; A. V. Vasil’ev; T. V. Dimova; A. A. Drozdetskii; V. P. Druzhinin; V. B. Golubev; V. N. Ivanchenko; A. A. Korol; M. S. Korostelev; S. V. Koshuba; A. P. Lysenko; I. N. Nesterenko; E. V. Pakhtusova; A. A. Sal’nikov; S. I. Serednyakov; V. Sidorov; Zurab K. Silagadze; A. G. Skripkin; Y. Usov; V. V. Sharyi; Yu. M. Shatunov
decay was studied and its branching ratio was measured:
Physics Letters B | 1999
Mikhail N Achasov; V.M. Aulchenko; A. V. Berdyugin; A. V. Bozhenok; A.D. Bukin; D.A. Bukin; S. V. Burdin; T. V. Dimova; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; I. A. Koop; A. A. Korol; S. V. Koshuba; I. N. Nesterenko; E. V. Pakhtusova; A. A. Salnikov; S. I. Serednyakov; V. V. Shary; Yu. M. Shatunov; V. Sidorov; Zurab K. Silagadze; Y. Usov
B(phitopi^0pi^0gamma)=(1.221pm 0.098pm0.061)cdot10^{-4}
Jetp Letters | 2000
Mikhail N Achasov; K. I. Beloborodov; A. V. Berdyugin; A. G. Bogdanchikov; A. V. Bozhenok; A. D. Bukin; D.A. Bukin; S. V. Burdin; A. V. Vasil’ev; Dmitri I. Ganyushin; Vladimir Golubev; T. V. Dimova; A. A. Drozdetskii; V. P. Druzhinin; P. M. Ivanov; Vladimir N. Ivanchenko; A. A. Korol; M. S. Korostelev; S. V. Koshuba; G. Kukartsev; E. V. Pakhtusova; A. A. Polunin; E. E. Pyata; A. A. Sal’nikov; S. I. Serednyakov; V. Sidorov; Zurab K. Silagadze; V. V. Sharyi; Yu. M. Shatunov
. It was shown, that
Physics Letters B | 1999
Mikhail N Achasov; S. E. Baru; A. V. Berdyugin; A. V. Bozhenok; D.A. Bukin; S. V. Burdin; T. V. Dimova; S. I. Dolinsky; V. P. Druzhinin; M. S. Dubrovin; I. A. Gaponenko; Vladimir Golubev; Vladimir N. Ivanchenko; A. A. Korol; M. S. Korostelev; S. V. Koshuba; E. V. Pakhtusova; A.A. Polunin; E. E. Pyata; A. A. Salnikov; V. V. Shary; S. I. Serednyakov; Yu. M. Shatunov; V. Sidorov; A.N. Skrinsky; Zurab K. Silagadze; Yu. S. Velikzhanin
f_0(980)gamma
