Measurements of the parameters of the φ(1020) resonance through studies of the processes e+e-|→K+K-,KSKL, and π+π-π0 -: art. no. 072002

被引:111
作者
Achasov, MN
Beloborodov, KI
Berdyugin, AV
Bogdanchikov, AG
Bozhenok, AV
Bukin, AD
Bukin, DA
Burdin, SV
Dimova, TV
Druzhinin, VP
Dubrovin, MS
Gaponenko, IA
Golubev, VB
Ivanchenko, VN
Ivanov, PM
Korol, AA
Korostelev, MS
Koshuba, SV
Pakhtusova, EV
Polunin, AA
Pyata, EE
Salnikov, AA
Serednyakov, SI
Shary, VV
Shatunov, YM
Sidorov, VA
Silagadze, ZK
Skrinsky, AN
Usov, YV
Vasiljev, AV
Velikzhanin, YS
机构
[1] Russian Acad Sci, Siberian Branch, Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
关键词
D O I
10.1103/PhysRevD.63.072002
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The cross sections of the processes e(+)e(-) -->K+K-, e(+)e(-) -->KsKL, and e(+)e(-) --> pi (+)pi (-)pi (0) were measured in the SND experiment at the VEPP-2M collider in the energy region near the phi (1020) meson. These measurements were based on about 10(6) K+K-, 0.5x10(6) KsKL, and 0.4x10(6) pi (+)pi (-)pi (o) selected events. The measured cross sections have been analyzed in the framework of the vector meson dominance model and the main parameters of the phi resonance were obtained, such as its mass, width, the production cross section, and branching ratios of the main decay modes. The measured value of the phi mason total width, Gamma (phi)=4.21 +/-0.04, is lower than the present world average of 4.458+/-0.032 MeV. Contributions in addition to the conventional vector meson dominance model were found in the e(+)e(-) --> pi (+)pi (-)pi (o) reaction cross section.
引用
收藏
页数:15
相关论文
共 30 条
[1]   The process e+e- → π+π-π0 in the energy range 2 E0=1.04-1.38 GeV [J].
Achasov, MN ;
Aulchenko, VM ;
Baru, SE ;
Beloborodov, KI ;
Berdyugin, AV ;
Bozhenok, AV ;
Bukin, AD ;
Bukin, DA ;
Burdin, SV ;
Dimova, TV ;
Dolinsky, SI ;
Druzhinin, VP ;
Dubrovin, MS ;
Gaponenko, IA ;
Golubev, VB ;
Ivanchenko, VN ;
Koop, IA ;
Ivanov, PM ;
Korol, AA ;
Koshuba, SV ;
Pakhtusova, EV ;
Perevedentsev, EA ;
Salnikov, AA ;
Serednyakov, SI ;
Shary, VV ;
Shatunov, YM ;
Sidorov, VA ;
Silagadze, ZK ;
Skrinsky, AN ;
Usov, YV ;
Varganov, AV ;
Vasilyev, AV ;
Velikzhanin, YS .
PHYSICS LETTERS B, 1999, 462 (3-4) :365-370
[2]   Observation of the decay φ→ωπ0 [J].
Achasov, MN ;
Baru, SE ;
Berdyugin, AV ;
Bozhenok, AV ;
Bukin, DA ;
Burdin, SV ;
Dimova, TV ;
Dolinsky, SI ;
Druzhinin, VP ;
Dubrovin, MS ;
Gaponenko, IA ;
Golubev, VB ;
Ivanchenko, VN ;
Korol, AA ;
Korostelev, MS ;
Koshuba, SV ;
Pakhtusova, EV ;
Polunin, AA ;
Pyata, EE ;
Salnikov, AA ;
Shary, VV ;
Serednyakov, SI ;
Shatunov, YM ;
Sidorov, VA ;
Skrinsky, AN ;
Silagadze, ZK ;
Velikzhanin, YS .
PHYSICS LETTERS B, 1999, 449 (1-2) :122-127
[3]   Spherical neutral detector for VEPP-2M collider [J].
Achasov, MN ;
Aulchenko, VM ;
Baru, SE ;
Beloborodov, KI ;
Berdyugin, AV ;
Bogdanchikov, AG ;
Bozhenok, AV ;
Bukin, AD ;
Bukin, DA ;
Burdin, SV ;
Dimova, TV ;
Dolinsky, SI ;
Drozdetsky, AA ;
Druzhinin, VP ;
Dubrovin, MS ;
Gaponenko, IA ;
Golubev, VB ;
Ivanchenko, VN ;
Korol, AA ;
Koshuba, SV ;
Kukartsev, GA ;
Pakhtusova, EV ;
Popov, VM ;
Salnikov, AA ;
Serednyakov, SI ;
Shary, VV ;
Sidorov, VA ;
Silagadze, ZK ;
Usov, YV ;
Vasiljev, AV ;
Velikzhanin, YS ;
Zakharov, AC .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 449 (1-2) :125-139
[4]   Measurement of the relative probability of φ→ηγ decay in the η→π+π-π0 channel [J].
Achasov, MN ;
Beloborodov, KI ;
Berdyugin, AV ;
Bozhenok, AV ;
Bukin, AD ;
Bukin, DA ;
Burdin, SV ;
Vasil'ev, AV ;
Ganyushin, DI ;
Gaponenko, IA ;
Golubev, VB ;
Dimova, TV ;
Dolinskii, SI ;
Druzhinin, VP ;
Dubrovin, MS ;
Zakharov, AS ;
Ivanchenko, VN ;
Ivanov, PM ;
Korol', AA ;
Koshuba, SV ;
Kukhartsev, GA ;
Mamutkin, AA ;
Otboev, AV ;
Pakhtusova, EV ;
Sal'nikov, AA ;
Serednyakov, SI ;
Sidorov, VA ;
Silagadze, ZK ;
Sharyi, VV ;
Shatunov, YM .
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2000, 90 (01) :17-23
[5]  
Achasov NN, 1997, PHYS ATOM NUCL+, V60, P2029
[6]  
Achasov NN, 1998, PHYS REV D, V57, P4334, DOI 10.1103/PhysRevD.57.4334
[7]   rho''s in analyzing e(+)e(-) annihilation: Mark III, LASS, and ARGUS data [J].
Achasov, NN ;
Kozhevnikov, AA .
PHYSICAL REVIEW D, 1997, 55 (05) :2663-2671
[8]  
ACHASOV NN, 1991, SOV J NUCL PHYS+, V54, P664
[9]   A FRESH LOOK AT PHI-OMEGA-MIXING [J].
ACHASOV, NN ;
KOZHEVNIKOV, AA ;
DUBROVIN, MS ;
IVANCHENKO, VN ;
PAKHTUSOVA, EV .
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1992, 7 (14) :3187-3201
[10]  
Achasov NN, 1997, PHYS ATOM NUCL+, V60, P1011