Measurement of gamma gamma* -> pi(0) transition form factor at Belle

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10127375" target="_blank" >RIV/00216208:11320/12:10127375 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevD.86.092007" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.86.092007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.86.092007" target="_blank" >10.1103/PhysRevD.86.092007</a>

Result language

angličtina

Original language name

Measurement of gamma gamma* -> pi(0) transition form factor at Belle

Original language description

We report a measurement of the process gamma gamma* -> pi(0) with a 759 fb(-1) data sample recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The pion transition form factor, F(Q(2)), is measured for the kinematical region4 GeV2 {= Q(2) {= 40 GeV2, where -Q(2) is the invariant-mass squared of a virtual photon. The measured values of Q(2)vertical bar F(Q(2))vertical bar agree well with the previous measurements below Q(2) similar or equal to 9 GeV2 but do not exhibit the rapid growth in the higher Q(2) region seen in another recent measurement, which exceeds the asymptotic QCD expectation by as much as 50%.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

<a href="/en/project/LA10033" target="_blank" >LA10033: Participation in the Belle a Belle II experiments: study of B-meson decays</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review D - Particles, Fields, Gravitation and Cosmology

ISSN

1550-7998

e-ISSN

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Volume of the periodical

86

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

27

Pages from-to

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UT code for WoS article

000310868700001

EID of the result in the Scopus database

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