New constraints on the pion EM form factor using Π′(-Q2)

被引：0
|
作者：
Abbas, Gauhar [1 ]
Ananthanarayan, B. [1 ]
Ramanan, S. [1 ]
机构：
[1] Indian Inst Sci, Ctr High Energy Phys, Bangalore 560012, Karnataka, India
来源：
EUROPEAN PHYSICAL JOURNAL A | 2009年 / 41卷 / 01期
关键词：
ELECTROPRODUCTION;
D O I：
10.1140/epja/i2009-10802-x
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic form factor from the inclusion of pure spacelike data and the phase of timelike data along with one spacelike datum, using as input the first derivative of the QCD polarization amplitude Pi'(-Q(2)). These constraints when combined with other analyses, provide a valuable check on a determination of c due to Guo et al. and on our previous work where pionic contribution to the (g - 2) of the muon was used as the input. This work further illustrates the power of analyticity techniques in form factor analysis.
引用
收藏
页码：93 / 100
页数：8
相关论文
共 50 条
  • [41] Strange magnetic form factor of the proton at Q2=0.23 GeV2
    Wang, P.
    Leinweber, D. B.
    Thomas, A. W.
    Young, R. D.
    PHYSICAL REVIEW C, 2009, 79 (06):
  • [42] PROTON FORM FACTOR RATIO MEASUREMENTS AT HIGH Q2 WITH SUPER BIGBITE
    Khandaker, M.
    EXCLUSIVE REACTIONS AT HIGH MOMENTUM TRANSFER IV, 2011, : 249 - 257
  • [43] Neutral pion electroproduction in the resonance region at high Q2
    Villano, A. N.
    Stoler, P.
    Bosted, P. E.
    Connell, S. H.
    Dalton, M. M.
    Jones, M. K.
    Kubarovsky, V.
    Adams, G. S.
    Ahmidouch, A.
    Arrington, J.
    Asaturyan, R.
    Baker, O. K.
    Breuer, H.
    Christy, M. E.
    Danagoulian, S.
    Day, D.
    Dunne, J. A.
    Dutta, D.
    Ent, R.
    Fenker, H. C.
    Frolov, V. V.
    Gan, L.
    Gaskell, D.
    Hinton, W.
    Holt, R. J.
    Horn, T.
    Huber, G. M.
    Joo, K.
    Kalantarians, N.
    Keppel, C. E.
    Li, Y.
    Lung, A.
    Mack, D.
    Malace, S.
    Markowitz, P.
    Meekins, D. G.
    Mkrtchyan, H.
    Napolitano, J.
    Niculescu, G.
    Niculescu, I.
    Potterveld, D. H.
    Reimer, Paul E.
    Reinhold, J.
    Roche, J.
    Rock, S. E.
    Smith, G. R.
    Stepanyan, S.
    Tadevosyan, V.
    Tvaskis, V.
    Ungaro, M.
    PHYSICAL REVIEW C, 2009, 80 (03):
  • [44] NEW CONSTRAINTS ON PION ELECTROMAGNETIC FORM-FACTOR AND CHOU-YANG MODEL
    AJDUK, Z
    LUKASZUK, L
    NUCLEAR PHYSICS B, 1972, B 46 (01) : 131 - &
  • [45] RHO-MESON COUPLING CONSTANTS AND EM FORM FACTOR OF PION
    SELLERI, F
    NUOVO CIMENTO A, 1968, 53 (03): : 657 - +
  • [46] The ΔNγ electromagnetic transition form factors G*M(q2) and G*E(q2)
    Slaughter, MD
    NUCLEAR PHYSICS A, 2004, 740 (3-4) : 383 - 399
  • [47] Neutron electric form factor up to Q2 = 1.47 GeV/c2
    R. Madey
    A.Yu. Semenov
    S. Taylor
    A. Aghalaryan
    E. Crouse
    G. MacLachlan
    B. Plaster
    S. Tajima
    W. Tireman
    Chenyu Yan
    A. Ahmidouch
    B.D. Anderson
    H. Arenhövel
    R. Asaturyan
    O. Baker
    A.R. Baldwin
    H. Breuer
    R. Carlini
    E. Christy
    S. Churchwell
    L. Cole
    S. Danagoulian
    D. Day
    M. Elaasar
    R. Ent
    M. Farkhondeh
    H. Fenker
    J.M. Finn
    L. Gan
    K. Garrow
    P. Gueye
    C. Howell
    B. Hu
    M.K. Jones
    J.J. Kelly
    C. Keppel
    M. Khandaker
    W.-Y. Kim
    S. Kowalski
    A. Lung
    D. Mack
    D.M. Manley
    P. Markowitz
    J. Mitchell
    H. Mkrtchyan
    A. Opper
    C. Perdrisat
    V. Punjabi
    B. Raue
    T. Reichelt
    The European Physical Journal A - Hadrons and Nuclei, 2003, 17 : 323 - 327
  • [48] Addendum to "A New Proof of the existence of (q2 - q + 1)-ARCS in PG(2, q2)"
    Cossidente A.
    Journal of Geometry, 1997, 59 (1-2) : 32 - 33
  • [49] High Precision Measurement of the Proton Elastic Form Factor Ratio at Low Q2
    Zhan, Xiaohui
    INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS, 2009, 1182 : 929 - 932
  • [50] A high precision measurement of the neutron electric form factor, GEn at high Q2
    Kelleher, A. M.
    Proceedings of the 17th International Spin Physics Symposium, 2007, 915 : 753 - 756
12345