Study of π0 pair production in single-tag two-photon collisions

The Belle Collaboration

doi:10.1103/PhysRevD.93.032003

Study of π0 pair production in single-tag two-photon collisions

The Belle Collaboration

The University of Tokyo
The Graduate University for Advanced Studies
High Energy Accelerator Research Organization, Tsukuba
Kanagawa University
National Central University
University of Tabuk
King Abdulaziz University
Pacific Northwest National Laboratory
Middle East Technical University
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
Moscow Institute of Physics and Technology
Tata Institute of Fundamental Research
King Abdulaziz City for Science and Technology
The University of Sydney
University of Melbourne
Indian Institute of Technology Madras
Indian Institute of Technology Guwahati
Jožef Stefan Institute
Wayne State University
H. Niewodniczanski Institute of Nuclear Physics
University of Maribor
University of Hawai'i at Mānoa
Charles University
Max Planck Institute for Physics (Werner Heisenberg Institute)
Hanyang University
Moscow Engineering Physics Institute
Korea Institute of Science and Technology Information
Gyeongsang National University
Sungkyunkwan University
Technische Universität München
Indian Institute of Technology Bhubaneswar
University of Bonn
German Electron Synchrotron

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

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.

Original language	English
Article number	032003
Journal	Physical Review D
Volume	93
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.93.032003
State	Published - 18 Feb 2016

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10.1103/PhysRevD.93.032003

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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",

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 Kookhyun Kang and Kim, \{M. J.\}",

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doi = "10.1103/PhysRevD.93.032003",

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AU - The Belle Collaboration

AU - Masuda, M.

AU - Uehara, S.

AU - Watanabe, Y.

AU - Nakazawa, H.

AU - Abdesselam, A.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Behera, P.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, N.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Kang, Kookhyun

AU - Kim, M. J.

PY - 2016/2/18

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AB - 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

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JO - Physical Review D

JF - Physical Review D

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ER -

Study of π0 pair production in single-tag two-photon collisions

Abstract

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