Fetching the paper…

Reading the bibliography…

2011

The puzzle of the \pi -> \gamma \gamma* transition form factor

Lucha, Wolfgang, Melikhov, Dmitri

Original
PDF
Post on X

Understand

We study the $P\to\gamma\,\gamma^*$ ($P=\pi^0,\eta,\eta'$) transition form factors by means of the local-duality (LD) version of QCD sum rules.

For the case of $\eta$ and $\eta'$, the conventional LD model provides a good description of the existing data.
However, for the $\pi$ form factor we find disagreement with recent BaBar results for high $Q^2$ even though the accuracy of the LD approximation is expected to increase with $Q^2$.
It remains mysterious why the $\eta$ and $\eta'$ form factors to virtual photons, on the one hand, and the $\pi$ form factor, on the other hand, show a qualitatively different behaviour corresponding to a rising with $Q^2$ violation of local duality in the pion case.

The puzzle of the \pi -> \gamma \gamma* transition form factor · Around

Built on

S. Adler and B. Bardeen, Phys. Rev. 182
1969
Earlier work this paper cites.
M. Shifman, A. Vainshtein, and V. Zakharov, Nucl. Phys. B 147
1979
Earlier work this paper cites.
A. I. Vainshtein, V. I. Zakharov, V. A. Novikov, and M. A. Shifman, Sov. J. Nucl. Phys. 32
1980
Earlier work this paper cites.
V. A. Nesterenko and A. V. Radyushkin, Phys. Lett. B 115
1982
Earlier work this paper cites.
S. Brodsky and G. Lepage, Phys. Rev. D 22
1989
Earlier work this paper cites.
A. D. Dolgov and V. I. Zakharov, Nucl. Phys. B 27
1990
Earlier work this paper cites.
CELLO Collaboration, H. J. Behrend et al., Z. Phys. C 49
1991
Earlier work this paper cites.
A. V. Radyushkin, Acta Phys. Polon. B 26
1995
Earlier work this paper cites.

Similar

S. Adler, Phys. Rev. 177
1996
Cited alongside, same era.
V. V. Anisovich, D. I. Melikhov, and V. A. Nikonov, Phys. Rev. D 55
1997
Cited alongside, same era.
CLEO Collaboration, J. Gronberg et al., Phys. Rev. D 57
1998
Cited alongside, same era.
T. Feldmann, P. Kroll, and B. Stech, Phys. Rev. D 58
1999
Cited alongside, same era.
D. Melikhov and B. Stech, Phys. Rev. Lett. 88
2002
Cited alongside, same era.
D. Melikhov, Eur. Phys. J. direct C4
2002
Cited alongside, same era.
F. Jegerlehner and O. V. Tarasov, Phys. Lett. B 639
2006
Cited alongside, same era.

Then

W. Lucha and D. Melikhov, Phys. Rev. D 73
2007
Later among the works it cites.
I. Balakireva, W. Lucha, and D. Melikhov, arXiv:1103.3781; V. Braguta, W. Lucha, and D. Melikhov, Phys. Lett. B 661
Original
2008
Later among the works it cites.
W. Lucha, D. Melikhov, and S. Simula, Phys. Rev. D 76
2009
Later among the works it cites.
A. Dorokhov, JETP Lett. 91
2010
Later among the works it cites.
H. L. L. Roberts et al., Phys. Rev. C 82
2010
Later among the works it cites.
Y. Khlopot, A. Oganesian, and O. Teryaev, Phys. Lett. B 695
2011
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

R. Pasechnik and O. Teryaev, Phys. Rev. D 73

2006

Cited alongside, same era.

P. Kroll, arXiv:1109.5561

Cited in the paper.

V. Chernyak, arXiv:0912.0623 [hep-ph]

Cited in the paper.

W. Lucha, D. Melikhov, H. Sazdjian, and S. Simula, Phys. Rev. D 80

2011

Closest in time.

A.P. Bakulev, S.V. Mikhailov, A.V. Pimikov, and N.G. Stefanis, Phys. Rev. D 84

2011

Closest in time.