Zobrazeno 1 - 10
of 1 648
pro vyhledávání: '"A. Sachrajda"'
We describe a first-principles method to apply lattice QCD to compute the order $\alpha_{\mathrm{EM}}$ corrections to $K\to\pi\ell\nu_\ell$ decay. This method formulates the calculation in infinite volume with the conventional infinite-volume, contin
Externí odkaz:
http://arxiv.org/abs/2402.08915
Autor:
Frezzotti, R., Gagliardi, G., Lubicz, V., Martinelli, G., Sachrajda, C. T., Sanfilippo, F., Simula, S., Tantalo, N.
We determine, by means of lattice QCD calculations, the local form factors describing the $B_{s}\to \mu^{+}\mu^{-}\gamma$ decay. For this analysis we make use of the gauge configurations produced by the ETM Collaboration with $N_{f}=2+1+1$ flavour of
Externí odkaz:
http://arxiv.org/abs/2402.03262
Autor:
Anzivino, G., Cuendis, S. Arguedas, Bernard, V., Bijnens, J., Bloch-Devaux, B., Bordone, M., Brizioli, F., Brod, J., Camalich, J. M., Ceccucci, A., Cenci, P., Christ, N. H., Colangelo, G., Cornella, C., Crivellin, A., D'Ambrosio, G., Deppisch, F. F., Dery, A., Dettori, F., Di Carlo, M., Döbrich, B., Engelfried, J., Fantechi, R., González-Alonso, M., Gorbahn, M., Goudzovski, E., Grossman, Y., Hermansson-Truedsson, N., Hives, Z., Hoferichter, M., Hoid, B. -L., Husek, T., Isidori, G., Jüttner, A., Kampf, K., Kholodenko, S., Knecht, M., Kolesár, M., Koval, M., Lazzeroni, C., Ligeti, Z., Mahmoudi, F., Marchevski, R., Santos, D. Martínez, Massri, K., Mombächer, T., Nanjo, H., Neshatpour, S., Nomura, T., Passemar, E., Peruzzo, L., Piccini, M., Pich, A., Sachrajda, C. T., Schacht, S., Shiomi, K., Stangl, P., Stoffer, P., Swallow, J., Tsang, J. T., Valencia, G., Wanke, R., Zupan, J.
Kaon physics is at a turning point -- while the rare-kaon experiments NA62 and KOTO are in full swing, the end of their lifetime is approaching and the future experimental landscape needs to be defined. With HIKE, KOTO-II and LHCb-Phase-II on the tab
Externí odkaz:
http://arxiv.org/abs/2311.02923
Autor:
Bai, Ziyuan, Christ, Norman H., Karpie, Joseph M., Sachrajda, Christopher T., Soni, Amarjit, Wang, Bigeng
A lattice QCD approach to the calculation of the long-distance contributions to $\epsilon_K$ is presented. This parameter describes indirect CP violation in $K\to\pi\pi$ decay. While the short-distance contribution to $\epsilon_K$ can be accurately c
Externí odkaz:
http://arxiv.org/abs/2309.01193
Autor:
Frezzotti, R., Gagliardi, G., Lubicz, V., Martinelli, G., Mazzetti, F., Sachrajda, C. T., Sanfilippo, F., Simula, S., Tantalo, N.
We compute the structure-dependent axial and vector form factors for the radiative leptonic decays $D_s\to \ell\nu_\ell\gamma$, where $\ell$ is a charged lepton, as functions of the energy of the photon in the rest frame of the $D_s$ meson. The compu
Externí odkaz:
http://arxiv.org/abs/2306.05904
Lattice QCD calculations of leptonic decay constants have now reached sub-percent precision so that isospin-breaking corrections, including QED effects, must be included to fully exploit this precision in determining fundamental quantities, in partic
Externí odkaz:
http://arxiv.org/abs/2304.08026
Autor:
Asmussen, Nils, Erben, Felix, Flynn, Jonathan, Jüttner, Andreas, Mukherjee, Rajnandini, Sachrajda, Christopher T.
Publikováno v:
PoS(LATTICE2022)069
We present our calculations for the $I$ = 1/2 and 3/2 $K-\pi$ s-wave scattering length with physical quark masses, extracted from the interaction energy of Euclidean two-point functions. We use the domain wall fermion action with physical quark masse
Externí odkaz:
http://arxiv.org/abs/2301.12858
Autor:
G. Anzivino, Sergio Arguedas Cuendis, V. Bernard, J. Bijnens, B. Bloch-Devaux, M. Bordone, F. Brizioli, J. Brod, J. M. Camalich, A. Ceccucci, P. Cenci, N. H. Christ, G. Colangelo, C. Cornella, A. Crivellin, G. D’Ambrosio, F. F. Deppisch, A. Dery, F. Dettori, M. Di Carlo, B. Döbrich, J. Engelfried, R. Fantechi, M. González-Alonso, M. Gorbahn, E. Goudzovski, Y. Grossman, N. Hermansson-Truedsson, Z. Hives, M. Hoferichter, B.-L. Hoid, T. Husek, G. Isidori, A. Jüttner, K. Kampf, S. Kholodenko, M. Knecht, M. Kolesár, M. Koval, C. Lazzeroni, Z. Ligeti, F. Mahmoudi, R. Marchevski, Diego Martínez Santos, K. Massri, T. Mombächer, H. Nanjo, S. Neshatpour, T. Nomura, E. Passemar, L. Peruzzo, M. Piccini, A. Pich, C. T. Sachrajda, S. Schacht, K. Shiomi, P. Stangl, P. Stoffer, J. Swallow, J. T. Tsang, G. Valencia, R. Wanke, J. Zupan
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 4, Pp 1-34 (2024)
Abstract Kaon physics is at a turning point – while the rare-kaon experiments NA62 and KOTO are in full swing, the end of their lifetime is approaching and the future experimental landscape needs to be defined. With HIKE, KOTO-II and LHCb-Phase-II
Externí odkaz:
https://doaj.org/article/a61fae397f6949a081c1612874215bcc
Autor:
Blum, Thomas, Boyle, Peter, Bruno, Mattia, Christ, Norman, Erben, Felix, Feng, Xu, Guelpers, Vera, Hill, Ryan, Hodgson, Raoul, Hoying, Danel, Izubuchi, Taku, Jang, Yong-Chull, Jin, Luchang, Jung, Chulwoo, Karpie, Joe, Kelly, Christopher, Lehner, Christoph, Portelli, Antonin, Sachrajda, Christopher, Soni, Amarjit, Tomii, Masaaki, Wang, Bigeng, Wang, Tianle
The decays and mixing of $K$ mesons are remarkably sensitive to the weak interactions of quarks and leptons at high energies. They provide important tests of the standard model at both first and second order in the Fermi constant $G_F$ and offer a wi
Externí odkaz:
http://arxiv.org/abs/2203.10998
Autor:
Boyle, P. A., Erben, F., Flynn, J. M., Gülpers, V., Hill, R. C., Hodgson, R., Jüttner, A., hÓgáin, F. Ó, Portelli, A., Sachrajda, C. T.
Publikováno v:
Phys. Rev. D 107, L011503 (2023)
We report the first calculation using physical light-quark masses of the electromagnetic form factor $V(z)$ describing the long-distance contributions to the $K^+\to\pi^+\ell^+\ell^-$ decay amplitude. The calculation is performed on a 2+1 flavor doma
Externí odkaz:
http://arxiv.org/abs/2202.08795