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Real photon emissions in leptonic decays

G.M. de Divitiis
(
- INFN, Rome2 and
- Rome U., Tor Vergata
)
,
A. Desiderio
(
- Rome U., Tor Vergata
)
,
M. Di Carlo
(
- INFN, Rome
)
,
R. Frezzotti
(
- Rome U., Tor Vergata
)
,
M. Garofalo
(
- Rome U., Tor Vergata
)

Aug 27, 2019

7 pages

e-Print:

1908.10160 [hep-lat]

View in:

ADS Abstract Service

reference search10 citations

Citations per year

Abstract: (arXiv)

We present a non-perturbative calculation of the form factors which contribute to the amplitudes for the radiative decays

P\to \ell \bar \nu_\ell \gamma

, where

P

is a pseudoscalar meson and

\ell

is a charged lepton. Together with the non-perturbative determination of the virtual photon corrections to the processes

P\to \ell \bar \nu_\ell

, this will allow accurate predictions to be made at

O(\alpha_{em})

for leptonic decay rates for pseudoscalar mesons ranging from the pion to the

B

meson. We are able to separate unambiguously the point-like contribution, the square of which leads to the infrared divergence in the decay rate, from the structure dependent, infrared-safe, terms in the amplitude. The fully non-perturbative,

O(a)

improved calculation of the inclusive leptonic decay rates will lead to significantly improved precision in the determination of the corresponding Cabibbo-Kobayashi-Maskawa (CKM) matrix elements. Precise predictions for the emission of a hard photon are also very interesting, especially for the decays of heavy

D

and

B

mesons for which currently only model-dependent predictions are available to compare with existing experimental data.

photon: emission
photon: virtual
nonperturbative
leptonic decay
decay rate
pseudoscalar meson
meson
infrared problem
radiative decay
form factor

References(18)

Figures(10)

[1]

Review of Particle Physics

M. Tanabashi
(
- Nagoya U. and
- KMI, Nagoya
)
,
K. Hagiwara
(
- KEK, Tsukuba
)
,
K. Hikasa
(
- Tohoku U.
)
,
K. Nakamura
(
- Tokyo U., IPMU and
- KEK, Tsukuba
)
,
Y. Sumino
(
- Tohoku U.
)

et al.

- Phys.Rev.D 98 (2018) 3, 030001
•
DOI:
- 10.1103/PhysRevD.98.030001

[2]

Radiative leptonic decays on the lattice

Christopher Kane
(
- Arizona U.
)
,
Christoph Lehner
(
- Regensburg U. and
- Brookhaven
)
,
Stefan Meinel
(
- Arizona U. and
- RIKEN BNL
)
,
Amarjit Soni
(
- Brookhaven
)

- PoS LATTICE2019 (2019) 134
•
e-Print:
- 1907.00279
•
DOI:
- 10.22323/1.363.0134

[3]

Pi ---> lepton neutrino gamma form-factors at two loop

J. Bijnens
(
- Nordita
)
,
P. Talavera
(
- Nordita
)

- Nucl.Phys.B 489 (1997) 387-404
•
e-Print:
- hep-ph/9610269
•
DOI:
- 10.1016/S0550-3213(97)00069-2

[4]

Axial vector form-factors for K(l2 gamma) and pi(l2 gamma) at O(p**6) in chiral perturbation theory

C.Q. Geng
(
- Taiwan, Natl. Tsing Hua U. and
- TRIUMF
)
,
I-Lin Ho
(
- Taiwan, Natl. Tsing Hua U.
)
,
T.H. Wu
(
- Taiwan, Natl. Tsing Hua U.
)

- Nucl.Phys.B 684 (2004) 281-317
•
e-Print:
- hep-ph/0306165
•
DOI:
- 10.1016/j.nuclphysb.2003.12.039

[5]

Form-factors in radiative pion decay

V. Mateu
(
- Valencia U., IFIC
)
,
J. Portoles
(
- Valencia U., IFIC
)

- Eur.Phys.J.C 52 (2007) 325-338
•
e-Print:
- 0706.1039
•
DOI:
- 10.1140/epjc/s10052-007-0393-5

[6]

On the Radiative Pion Decay

Rene Unterdorfer
(
- PSI, Villigen
)
,
Hannes Pichl
(
- unlisted, CH
)

- Eur.Phys.J.C 55 (2008) 273-283
•
e-Print:
- 0801.2482
•
DOI:
- 10.1140/epjc/s10052-008-0584-8

[7]

Kaon Decays in the Standard Model

Vincenzo Cirigliano
(
- Los Alamos
)
,
Gerhard Ecker
(
- Vienna U.
)
,
Helmut Neufeld
(
- Vienna U.
)
,
Antonio Pich
(
- Valencia U., IFIC and
- Valencia U.
)
,
Jorge Portoles
(
- Valencia U., IFIC and
- Valencia U.
)

- Rev.Mod.Phys. 84 (2012) 399
•
e-Print:
- 1107.6001
•
DOI:
- 10.1103/RevModPhys.84.399

[8]

QED Corrections to Hadronic Processes in Lattice QCD

N. Carrasco
(
- Rome III U. and
- INFN, Rome3
)
,
V. Lubicz
(
- Rome III U. and
- INFN, Rome3
)
,
G. Martinelli
(
- INFN, Rome and
- SISSA, Trieste
)
,
C.T. Sachrajda
(
- Southampton U.
)
,
N. Tantalo
(
- CERN and
- INFN, Rome2 and
- Rome U., Tor Vergata
)

et al.

- Phys.Rev.D 91 (2015) 7, 074506
•
e-Print:
- 1502.00257
•
DOI:
- 10.1103/PhysRevD.91.074506

[9]

Finite-Volume QED Corrections to Decay Amplitudes in Lattice QCD

V. Lubicz
(
- Rome III U. and
- INFN, Rome3
)
,
G. Martinelli
(
- CERN and
- INFN, Rome and
- Rome U.
)
,
C.T. Sachrajda
(
- Southampton U.
)
,
F. Sanfilippo
(
- Southampton U.
)
,
S. Simula
(
- INFN, Rome3
)

et al.

- Phys.Rev.D 95 (2017) 3, 034504
•
e-Print:
- 1611.08497
•
DOI:
- 10.1103/PhysRevD.95.034504

[10]

Electromagnetic corrections to the leptonic decay rates of charged pseudoscalar mesons: lattice results

V. Lubicz
(
- INFN, Rome3 and
- Rome III U.
)
,
G. Martinelli
(
- Rome U. and
- INFN, Rome
)
,
C.T. Sachrajda
(
- Southampton U.
)
,
F. Sanfilippo
(
- Southampton U.
)
,
S. Simula
(
- INFN, Rome3
)

et al.

- PoS LATTICE2016 (2016) 290
•
e-Print:
- 1610.09668
•
DOI:
- 10.22323/1.256.0290

[11]

Electromagnetic corrections to leptonic decay rates of charged pseudoscalar mesons: finite-volume effects

N. Tantalo
(
- INFN, Rome2 and
- Rome U., Tor Vergata
)
,
V. Lubicz
(
- INFN, Rome3 and
- Rome III U.
)
,
G. Martinelli
(
- Rome U. and
- INFN, Rome
)
,
C.T. Sachrajda
(
- Southampton U.
)
,
F. Sanfilippo
(
- Southampton U.
)

et al.

e-Print:
- 1612.00199

[12]

First lattice calculation of the QED corrections to leptonic decay rates

D. Giusti
(
- INFN, Rome3 and
- Rome III U.
)
,
V. Lubicz
(
- INFN, Rome3 and
- Rome III U.
)
,
G. Martinelli
(
- INFN, Rome and
- Rome U.
)
,
C.T. Sachrajda
(
- Southampton U.
)
,
F. Sanfilippo
(
- INFN, Rome3
)

et al.

- Phys.Rev.Lett. 120 (2018) 7, 072001
•
e-Print:
- 1711.06537
•
DOI:
- 10.1103/PhysRevLett.120.072001

[13]

Light-meson leptonic decay rates in lattice QCD+QED

M. Di Carlo
(
- INFN, Rome and
- Rome U.
)
,
D. Giusti
(
- INFN, Rome3 and
- Rome III U.
)
,
V. Lubicz
(
- INFN, Rome3 and
- Rome III U.
)
,
G. Martinelli
(
- INFN, Rome and
- Rome U.
)
,
C.T. Sachrajda
(
- Southampton U.
)

et al.

- Phys.Rev.D 100 (2019) 3, 034514
•
e-Print:
- 1904.08731
•
DOI:
- 10.1103/PhysRevD.100.034514

[14]

Soft Photon Problem in Leptonic B-decays

- Phys.Lett.B 681 (2009) 257-263
•
e-Print:
- 0907.1845
•
DOI:
- 10.1016/j.physletb.2009.10.017

[15]

Radiative semileptonic kaon decays

- Nucl.Phys.B 396 (1993) 81-118
•
e-Print:
- hep-ph/9209261
•
DOI:
- 10.1016/0550-3213(93)90259-R

[16]

On the discretization of physical momenta in lattice QCD

G.M. de Divitiis
(
- Rome U., Tor Vergata and
- INFN, Rome2
)
,
R. Petronzio
(
- Rome U., Tor Vergata and
- INFN, Rome2
)
,
N. Tantalo
(
- Rome U., Tor Vergata and
- INFN, Rome2
)

- Phys.Lett.B 595 (2004) 408-413
•
e-Print:
- hep-lat/0405002
•
DOI:
- 10.1016/j.physletb.2004.06.035

[17]

Twisted boundary conditions in lattice simulations

C.T. Sachrajda
(
- Southampton U.
)
,
G. Villadoro
(
- Rome U. and
- INFN, Rome
)

- Phys.Lett.B 609 (2005) 73-85
•
e-Print:
- hep-lat/0411033
•
DOI:
- 10.1016/j.physletb.2005.01.033

[18]

Mesonic low-energy constants

Johan Bijnens
(
- Lund U., Dept. Theor. Phys.
)
,
Gerhard Ecker
(
- Vienna U.
)

- Ann.Rev.Nucl.Part.Sci. 64 (2014) 149-174
•
e-Print:
- 1405.6488
•
DOI:
- 10.1146/annurev-nucl-102313-025528