1.

Scalar kinetic mixing and the renormalization group
/ Bijnens, Johan ; Oredsson, Joel ; Rathsman, Johan
Quantum field theories containing scalar fields with equal quantum numbers allow for a mixed kinetic term in the Lagrangian. [...]
Published in Physics letters B 792 (2019) 238243
10.1016/j.physletb.2019.03.051
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2.

The order p 8 mesonic chiral Lagrangian
/ Bijnens, Johan ; HermanssonTruedsson, Nils ; Wang, Si
We derive the chiral Lagrangian at nexttonexttonexttoleading order (NNNLO) for a general number N f of light quark flavours as well as for N f = 2 , 3. [...]
Published in JHEP 1901 (2019) 102
10.1007/JHEP01(2019)102
arXiv:1810.06834
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3.

Analytic representations of ${m}_{K}$, ${F}_{K}$, ${m}_{\eta}$, and ${F}_{\eta}$ in two loop $SU\left(3\right)$ chiral perturbation theory
/ Ananthanarayan, B. ; Bijnens, Johan ; Friot, Samuel ; Ghosh, Shayan
In this work, we consider expressions for the masses and decay constants of the pseudoscalar mesons in $SU\left(3\right)$ chiral perturbation theory. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.114004
arXiv:1804.06072
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4.

Analytic representation of ${F}_{K}/{F}_{\pi}$ in two loop chiral perturbation theory
/ Ananthanarayan, B. ; Bijnens, Johan ; Friot, Samuel ; Ghosh, Shayan
We present an analytic representation of ${F}_{K}/{F}_{\pi}$ as calculated in threeflavor twoloop chiral perturbation theory, which involves expressing three mass scale sunsets in terms of Kampé de Fériet series. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.091502
arXiv:1711.11328
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5.

Vector twopoint functions in finite volume using partially quenched chiral perturbation theory at two loops
/ Bijnens, Johan ; Relefors, Johan
We calculate vectorvector correlation functions at two loops using partially quenched chiral perturbation theory including finite volume effects and twisted boundary conditions. [...]
Published in JHEP 1712 (2017) 114
10.1007/JHEP12(2017)114
arXiv:1710.04479
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6.

Chiral perturbation theory for neutron–antineutron oscillations
/ Bijnens, Johan ; Kofoed, Erik
We construct the Chiral Perturbation Theory operators for neutron–antineutron oscillations and use these to estimate chiral and finite volume corrections at oneloop order..
Published in EPJC 77 (2017) 867
10.1140/epjc/s1005201754117
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7.

The pion mass and decay constant at three loops in twoflavour chiral perturbation theory
/ Bijnens, Johan ; Truedsson, Nils
A calculation of the pion mass and decay constant at NNNLO in twoflavour chiral perturbation theory is presented. [...]
Published in JHEP 1711 (2017) 181
10.1007/JHEP11(2017)181
arXiv:1710.01901
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8.

An analytic analysis of the pion decay constant in threeflavoured chiral perturbation theory
/ Ananthanarayan, B. ; Bijnens, Johan ; Ghosh, Shayan
A representation of the twoloop contribution to the pion decay constant in SU (3) chiral perturbation theory is presented. [...]
Published in EPJC 77 (2017) 497
10.1140/epjc/s100520175019y
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9.

Twisted finitevolume corrections to K l 3 decays with partiallyquenched and rootedstaggered quarks
/ Bernard, Claude ; Bijnens, Johan ; Gámiz, Elvira ; Relefors, Johan
The determination of  V us  from kaon semileptonic decays requires the value of the form factor f + ( q 2 = 0) which can be calculated precisely on the lattice. [...]
Published in JHEP 1703 (2017) 120
10.1007/JHEP03(2017)120
arXiv:1702.03416
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10.

Connected, disconnected and strange quark contributions to HVP
/ Bijnens, Johan ; Relefors, Johan
We calculate all neutral vector twopoint functions in Chiral Perturbation Theory (ChPT) to twoloop order and use these to estimate the ratio of disconnected to connected contributions as well as contributions involving the strange quark. [...]
Published in JHEP 1611 (2016) 086
10.1007/JHEP11(2016)086
arXiv:1609.01573
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