Measurement of the ω,ρ→π0e+e- branching fractions

被引:6
|
作者
Achasov, M. N. [1 ,2 ]
Beloborodov, K. I. [1 ,2 ]
Berdyugin, A. V. [1 ]
Bogdanchikov, A. G. [1 ]
Bukin, A. D. [1 ,2 ]
Bukin, D. A. [1 ]
Vasil'ev, A. V. [1 ,2 ]
Golubev, V. B. [1 ,2 ]
Dimova, T. V. [1 ,2 ]
Druzhinin, V. P. [1 ,2 ]
Koop, I. A. [1 ,2 ]
Korol, A. A. [1 ]
Koshuba, S. V. [1 ]
Pakhtusova, E. V. [1 ]
Perevedentsev, E. A. [1 ]
Serednyakov, S. I. [1 ,2 ]
Silagadze, Z. K. [1 ,2 ]
Skrinsky, A. N. [1 ]
Shatunov, Yu. M. [1 ,2 ]
机构
[1] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/S1063776108070054
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The e(+)e(-)->omega, rho ->pi(0)e(+)e(-) processes have been investigated in the experiments with Spherical Neutral Detector at the VEPP-2M e(+)e(-) collider. The measurements provide the probability B(omega ->pi(0)e(+)e(-)) = ( 0.761 +/- 0.053 +/- 0.064) x 10(-3) of the omega ->pi(0)e(+)e(-) conversion decay and the upper limit B(omega ->pi(0)e(+)e(-)) < 1.2 x 10(-5) (at 90% CL) for the rho ->pi(0)e(+)e(-) decay. The transition form factor was measured at three values of the 4-momentum transfer squared.
引用
收藏
页码:61 / 68
页数:8
相关论文
共 50 条
  • [31] Measurement of the B0 → K∗0e+e− branching fraction at low dilepton mass
    R. Aaij
    C. Abellan Beteta
    B. Adeva
    M. Adinolfi
    C. Adrover
    A. Affolder
    Z. Ajaltouni
    J. Albrecht
    F. Alessio
    M. Alexander
    S. Ali
    G. Alkhazov
    P. Alvarez Cartelle
    A. A. Alves
    S. Amato
    S. Amerio
    Y. Amhis
    L. Anderlini
    J. Anderson
    R. Andreassen
    R. B. Appleby
    O. Aquines Gutierrez
    F. Archilli
    A. Artamonov
    M. Artuso
    E. Aslanides
    G. Auriemma
    S. Bachmann
    J. J. Back
    C. Baesso
    V. Balagura
    W. Baldini
    R. J. Barlow
    C. Barschel
    S. Barsuk
    W. Barter
    Th. Bauer
    A. Bay
    J. Beddow
    F. Bedeschi
    I. Bediaga
    S. Belogurov
    K. Belous
    I. Belyaev
    E. Ben-Haim
    M. Benayoun
    G. Bencivenni
    S. Benson
    J. Benton
    A. Berezhnoy
    Journal of High Energy Physics, 2013
  • [32] Measurement of inclusive semileptonic branching fractions for D-→e- X and (D0)over-bar→e- x
    Bai, JZ
    Ban, Y
    Bian, JG
    Chang, JF
    Chen, AD
    Chen, HF
    Chen, HS
    Chen, JC
    Chen, XD
    Chen, YB
    Cheng, BS
    Chi, SP
    Chu, YP
    Cui, XZ
    Dai, YS
    Dong, LY
    Du, ZZ
    Fu, HY
    Fu, LP
    Gao, CS
    Gu, SD
    Guo, ZJ
    Guo, YN
    Han, SW
    Han, Y
    He, JT
    He, J
    He, KL
    He, M
    He, X
    Heng, YK
    Hong, T
    Hu, GY
    Hu, HM
    Hu, QH
    Hu, T
    Huang, GS
    Huang, XP
    Huang, YZ
    Ji, XB
    Jiang, CH
    Jin, Y
    Ke, ZJ
    Lai, YF
    Li, D
    Li, HB
    Li, HH
    Li, JC
    Li, J
    Li, PQ
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2002, 26 (06): : 547 - 556
  • [33] First observation of the decay KL → π0e+e-γ -: art. no. 021801
    Alavi-Harati, A
    Alexopoulos, T
    Arenton, M
    Arisaka, K
    Averitte, S
    Barker, AR
    Bellantoni, L
    Bellavance, A
    Belz, J
    Ben-David, R
    Bergman, DR
    Blucher, E
    Bock, GJ
    Bown, C
    Bright, S
    Cheu, E
    Childress, S
    Coleman, R
    Corcoran, MD
    Corti, G
    Cox, B
    Crisler, MB
    Erwin, AR
    Ford, R
    Glazov, A
    Golossanov, A
    Graham, G
    Graham, J
    Hagan, K
    Halkiadakis, E
    Hamm, J
    Hanagaki, K
    Hidaka, S
    Hsiung, YB
    Jejer, V
    Jensen, DA
    Kessler, R
    Kobrak, HGE
    LaDue, J
    Lath, A
    Ledovskoy, A
    McBride, PL
    Mikelsons, P
    Monnier, E
    Nakaya, T
    Nelson, KS
    Nguyen, H
    O'Dell, V
    Pang, M
    Pordes, R
    PHYSICAL REVIEW LETTERS, 2001, 87 (02) : 1 - 021801
  • [34] Measurement of the B0 → K*0 e+ e- branching fraction at low dilepton mass
    Aaij, R.
    Beteta, C. Abellan
    Adeva, B.
    Adinolfi, M.
    Adrover, C.
    Affolder, A.
    Ajaltouni, Z.
    Albrecht, J.
    Alessio, F.
    Alexander, M.
    Ali, S.
    Alkhazov, G.
    Cartelle, P. Alvarez
    Alves, A. A., Jr.
    Amato, S.
    Amerio, S.
    Amhis, Y.
    Anderlini, L.
    Anderson, J.
    Andreassen, R.
    Appleby, R. B.
    Gutierrez, O. Aquines
    Archilli, F.
    Artamonov, A.
    Artuso, M.
    Aslanides, E.
    Auriemmam, G.
    Bachmann, S.
    Back, J. J.
    Baesso, C.
    Balagura, V.
    Baldini, W.
    Barlow, R. J.
    Barsche, C.
    Barsuk, S.
    Barter, W.
    Bauer, Th.
    Bay, A.
    Beddow, J.
    Bedeschi, F.
    Bediagal, I.
    Belogurov, S.
    Belous, K.
    Belyaev, I.
    Ben-Haim, E.
    Benayoun, M.
    Bencivenni, G.
    Benson, S.
    Benton, J.
    Berezhnoy, A.
    JOURNAL OF HIGH ENERGY PHYSICS, 2013, (05):
  • [36] MEASUREMENT OF THE BRANCHING RATIO FOR K(L)-]E(+)E(-)E(+)E(-)
    VAGINS, MR
    ADAIR, RK
    GREENLEE, HB
    KASHA, H
    MANNELLI, EB
    OHL, KE
    SCHMIDT, MP
    JASTRZEMBSKI, E
    LARSEN, RC
    LEIPUNER, LB
    MORSE, WM
    SCHWARZ, CB
    PHYSICAL REVIEW LETTERS, 1993, 71 (01) : 35 - 37
  • [38] Search for the C-violating meson decay η → π0e+e- with WASA-at-COSY
    Demmich, Kay
    Bergmann, Florian
    Huesken, Nils
    Khoukaz, Alfons
    MESON 2016 - 14TH INTERNATIONAL WORKSHOP ON MESON PRODUCTION, PROPERTIES AND INTERACTION, 2016, 130
  • [39] Extracting short-distance physics from KL,S → π0e+e- decays
    Buchalla, G
    D'Ambrosio, G
    Isidori, G
    NUCLEAR PHYSICS B, 2003, 672 (1-2) : 387 - 408
  • [40] KL→π0 γγ and the bound on the CP-conserving KL→π0e+e- -: art. no. 094008
    Gabbiani, F
    Valencia, G
    PHYSICAL REVIEW D, 2001, 64 (09):