Zobrazeno 1 - 10
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pro vyhledávání: '"M Pi"'
We present a lattice calculation of the charged/neutral pion mass difference $M_{\pi^{+}}-M_{\pi^{0}}$ at order $\mathcal{O}(\alpha_{em})$ using the gauge configurations produced by the Extended Twisted Mass Collaboration with $N_{f}=2+1+1$ dynamical
Externí odkaz:
http://arxiv.org/abs/2202.11970
We present our preliminary results concerning the charged/neutral pion mass difference $M_{\pi^{+}} - M_{\pi^{0}}$ at order $\mathcal{O}(\alpha_{em})$ in the QED interactions, and for $M_{\pi^{+}} - M_{\pi^{0}}$ at order $\mathcal{O}\left( (m_{d}-m_{
Externí odkaz:
http://arxiv.org/abs/2112.01066
Autor:
Bulava, John, Hanlon, Andrew D., Hörz, Ben, Morningstar, Colin, Nicholson, Amy, Romero-López, Fernando, Skinner, Sarah, Vranas, Pavlos, Walker-Loud, André
Elastic nucleon-pion scattering amplitudes are computed using lattice QCD on a single ensemble of gauge field configurations with $N_{\rm f} = 2+1$ dynamical quark flavors and $m_{\pi} = 200~{\rm MeV}$. The $s$-wave scattering lengths with both total
Externí odkaz:
http://arxiv.org/abs/2208.03867
Autor:
Illa, Marc, Beane, Silas R., Chang, Emmanuel, Davoudi, Zohreh, Detmold, William, Murphy, David J., Orginos, Kostas, Parreño, Assumpta, Savage, Martin J., Shanahan, Phiala E., Wagman, Michael L., Winter, Frank
Publikováno v:
Phys. Rev. D 103, 054508 (2021)
The interactions between two octet baryons are studied at low energies using lattice QCD (LQCD) with larger-than-physical quark masses corresponding to a pion mass of $m_{\pi}\sim 450$ MeV and a kaon mass of $m_{K}\sim 596$ MeV. The two-baryon system
Externí odkaz:
http://arxiv.org/abs/2009.12357
Publikováno v:
Eur. Phys. J. C, 77 (2017) 219
We study the $\gamma\gamma\rightarrow M^{+}M^{-}(M=\pi, K)$ processes with the contributions from the two-particle twist-2 and twist-3 distribution amplitudes of pion and kaon mesons on BHL prescription in the standard hard-scattering approach. The r
Externí odkaz:
http://arxiv.org/abs/1512.04381
Dai and Pennington have performed a comprehensive analysis of essentially all pion and kaon pair production data from two-photon collisions below 1.5 GeV, including all high statistics results from Belle, as well as the older data from Mark II at SLA
Externí odkaz:
http://arxiv.org/abs/1607.08349
Publikováno v:
Phys. Rev. C 94, 014001 (2016)
We apply the low-energy theorems to analyze the recent lattice QCD results for the two-nucleon system at a pion mass of $M_\pi\simeq 450$ MeV obtained by the NPLQCD collaboration. We find that the binding energies of the deuteron and dineutron are in
Externí odkaz:
http://arxiv.org/abs/1604.02551
We review our work on the rho and sigma resonances derived from the Inverse Amplitude Method. In particular, we study the leading 1/N_c behavior of the resonances masses and widths and their evolution with changing m_pi. The 1/N_c expansion gives a c
Externí odkaz:
http://arxiv.org/abs/1101.1766
Autor:
Charlton, Steven
Publikováno v:
Journal of Number Theory 148 (2015) pp. 463--477
The cyclic insertion conjecture of Borwein, Bradley, Broadhurst and Lison\v{e}k states that inserting all cyclic shifts of some fixed blocks of 2's into the multiple zeta value {\zeta}(1,3,...,1,3) gives an explicit rational multiple of a power of {\
Externí odkaz:
http://arxiv.org/abs/1306.6775
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