@article{f998a6ccabd1484281614543245411ae,
title = "Study of π0 pair production in single-tag two-photon collisions",
abstract = "We report a measurement of the differential cross section of π0 pair production in single-tag two-photon collisions, γ∗γ→π0π0, in e+e- scattering. The cross section is measured for Q2 up to 30 GeV2, where Q2 is the negative of the invariant mass squared of the tagged photon, in the kinematic range 0.5 GeV<W<2.1 GeV and |cosθ∗|<1.0 for the total energy and pion scattering angle, respectively, in the γ∗γ center-of-mass system. The results are based on a data sample of 759 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The transition form factor of the f0(980) and that of the f2(1270) with the helicity-0, -1, and -2 components separately are measured for the first time and are compared with theoretical calculations.",
author = "{The Belle collaboration} and M. Masuda and S. Uehara and Y. Watanabe and H. Nakazawa and A. Abdesselam and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and V. Babu and I. Badhrees and Bakich, {A. M.} and E. Barberio and P. Behera and B. Bhuyan and J. Biswal and A. Bobrov and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Choi, {S. K.} and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and N. Dash and J. Dingfelder and Z. Dole{\v Z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and V. Gaur and M. Nayak",
note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = feb,
day = "18",
doi = "10.1103/PhysRevD.93.032003",
language = "אנגלית",
volume = "93",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "3",
}