Lattice calculation of the π0, η and η' transition form factors and the hadronic light-by-light contribution to the muon g-2

被引：4

作者：

Gerardin, Antoine ^{[1
]}

Verplanke, Willem E. A. ^{[1
]}

Wang, Gen ^{[1
]}

Fodor, Zoltan ^{[2
,3
,4
,5
]}

Guenther, Jana N. ^{[2
]}

Lellouch, Laurent ^{[1
]}

Szabo, Kalman K. ^{[2
,3
]}

Varnhorst, Lukas ^{[2
]}

机构：

[1] Aix Marseille Univ, Univ Toulon, CNRS, CPT, F-13009 Marseille, France

[2] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[3] Forschungszentrum Julich, Julich Supercomp Ctr, D-52428 Julich, Germany

[4] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary

[5] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW D | 2025年 / 111卷 / 05期

关键词：

EXCLUSIVE PROCESSES; QCD; PHOTON; MESON; WIDTH;

D O I：

10.1103/PhysRevD.111.054511

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we present a first ab initio calculation of the 0, rl and rl' transition form factors performed with physical light-quark masses. We provide a complete parametrization of the form factors that includes both single and double-virtual kinematics. Our results are compared with experimental measurements of the form factors in the spacelike region and with the measured two-photon decay widths. In a second step, our parametrizations of the transition form factors are used to compute the dominant pseudoscalar-pole contributions to the hadronic light-by-light scattering in the muon g - 2. Our final result reads ahlbl;ps-pole mu = (85.1 + 5.2) x 10-11. Although the pion-pole is dominant, we confirm that, together, the rl and rl' provide roughly half of its contribution.

引用

页数：24

共 110 条

[1] A new approach for measuring the muon anomalous magnetic moment and electric dipole moment [J].

Abe, M. ;

Bae, S. ;

Beer, G. ;

Bunce, G. ;

Choi, H. ;

Choi, S. ;

Chung, M. ;

da Silva, W. ;

Eidelman, S. ;

Finger, M. ;

Fukao, Y. ;

Fukuyama, T. ;

Haciomeroglu, S. ;

Hasegawa, K. ;

Hayasaka, K. ;

Hayashizaki, N. ;

Hisamatsu, H. ;

Iijima, T. ;

Iinuma, H. ;

Ikeda, H. ;

Ikeno, M. ;

Inami, K. ;

Ishida, K. ;

Itahashi, T. ;

Iwasaki, M. ;

Iwashita, Y. ;

Iwata, Y. ;

Kadono, R. ;

Kamal, S. ;

Kamitani, T. ;

Kanda, S. ;

Kapusta, F. ;

Kawagoe, K. ;

Kawamura, N. ;

Kim, B. ;

Kim, Y. ;

Kishishita, T. ;

Kitamura, R. ;

Ko, H. ;

Kohriki, T. ;

Kondo, Y. ;

Kume, T. ;

Lee, M. J. ;

Lee, S. ;

Lee, W. ;

Marshall, G. M. ;

Matsuda, Y. ;

Mibe, T. ;

Miyake, Y. ;

Murakami, T. .

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2019, 2019 (05)

[2]

Abi B., 2021, Phys. Rev. Lett., V126

[3] Measurement of η′(958) formation in two-photon collisions at LEP1 [J].

Acciarri, M ;

Adriani, O ;

Aguilar-Benitez, M ;

Ahlen, S ;

Alcaraz, J ;

Alemanni, G ;

Allaby, J ;

Aloisio, A ;

Alverson, G ;

Alviggi, MG ;

Ambrosi, G ;

Anderhub, H ;

Andreev, VP ;

Angelescu, T ;

Anselmo, F ;

Arefiev, A ;

Azemoon, T ;

Aziz, T ;

Bagnaia, P ;

Baksay, L ;

Ball, RC ;

Banerjee, S ;

Banicz, K ;

Barczyk, A ;

Barillere, R ;

Barone, L ;

Bartalini, P ;

Baschirotto, A ;

Basile, M ;

Battiston, R ;

Bay, A ;

Becattini, F ;

Becker, U ;

Behner, F ;

Berdugo, J ;

Berges, P ;

Bertucci, B ;

Betev, BL ;

Bhattacharya, S ;

Biasini, M ;

Biland, A ;

Bilei, GM ;

Blaising, JJ ;

Blyth, SC ;

Bobbink, GJ ;

Bock, R ;

Bohm, A ;

Boldizsar, L ;

Borgia, B .

PHYSICS LETTERS B, 1998, 418 (3-4) :399-410

[4] Rooting issue for a lattice fermion formulation similar to staggered fermions but without taste mixing [J].

Adams, David H. .

PHYSICAL REVIEW D, 2008, 77 (10)

[5] η → γ*γ* transition form factor and the hadronic light-by -light η-pole contribution to the muon g-2 from lattice QCD [J].

Alexandrou, Constantia ;

Bacchio, Simone ;

Burri, Sebastian ;

Finkenrath, Jacob ;

Gasbarro, Andrew ;

Hadjiyiannakou, Kyriakos ;

Jansen, Karl ;

Kanwar, Gurtej ;

Kostrzewa, Bartosz ;

Ottnad, Konstantin ;

Petschlies, Marcus ;

Pittler, Ferenc ;

Urbach, Carsten ;

Wenger, Urs .

PHYSICAL REVIEW D, 2023, 108 (05)

[6] THE HADRON SPECTRUM IN QCD WITH DYNAMIC STAGGERED FERMIONS [J].

ALTMEYER, R ;

BORN, KD ;

GOCKELER, M ;

HORSLEY, R ;

LAERMANN, E ;

SCHIERHOLZ, G .

NUCLEAR PHYSICS B, 1993, 389 (02) :445-510

[7]

Ammer M., 2020, P SCI LATTICE2019

[8] The anomalous magnetic moment of the muon in the Standard Model [J].

Aoyama, T. ;

Asmussen, N. ;

Benayoun, M. ;

Bijnens, J. ;

Blum, T. ;

Bruno, M. ;

Caprini, I ;

Calame, C. M. Carloni ;

Ce, M. ;

Colangelo, G. ;

Curciarello, F. ;

Czyz, H. ;

Danilkin, I ;

Davier, M. ;

Davies, C. T. H. ;

Della Morte, M. ;

Eidelman, S., I ;

El-Khadra, A. X. ;

Gerardin, A. ;

Giusti, D. ;

Golterman, M. ;

Gottlieb, Steven ;

Gulpers, V ;

Hagelstein, F. ;

Hayakawa, M. ;

Herdoiza, G. ;

Hertzog, D. W. ;

Hoecker, A. ;

Hoferichter, M. ;

Hoid, B-L ;

Hudspith, R. J. ;

Ignatov, F. ;

Izubuchi, T. ;

Jegerlehner, F. ;

Jin, L. ;

Keshavarzi, A. ;

Kinoshita, T. ;

Kubis, B. ;

Kupich, A. ;

Kupsc, A. ;

Laub, L. ;

Lehner, C. ;

Lellouch, L. ;

Logashenko, I ;

Malaescu, B. ;

Maltman, K. ;

Marinkovic, M. K. ;

Masjuan, P. ;

Meyer, A. S. ;

Meyer, H. B. .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2020, 887 :1-166

[9] Hadronic light-by-light scattering contribution to the muon g-2 from lattice QCD: semi-analytical calculation of the QED kernel [J].

Asmussen, Nils ;

Chao, En-Hung ;

Gerardin, Antoine ;

Green, Jeremy R. ;

Hudspith, Renwick J. ;

Meyer, Harvey B. ;

Nyffeler, Andreas .

JOURNAL OF HIGH ENERGY PHYSICS, 2023, 2023 (04)

[10]

Aubert B., 2009, Phys. Rev. D, V80

← 1 2 3 4 5 6 7 8 9 10 →