Zobrazeno 1 - 10
of 773
pro vyhledávání: '"Nicholson, Amy"'
Autor:
Bulava, John, Darvish, Danny, Hanlon, Andrew D., Hörz, Ben, Morningstar, Colin, Nicholson, Amy, Romero-López, Fernando, Skinner, Sarah, Vranas, Pavlos, Walker-Loud, André
Studies of the $\Delta$ baryon resonance and the $K_0^\ast(700)$ and $a_0(980)$ meson resonances using $N_f=2+1$ lattice QCD for pion masses near 200 MeV are presented. The $s$-wave scattering lengths for both the $I=1/2$ $N \pi$ and $I=3/2$ $N \pi$
Externí odkaz:
http://arxiv.org/abs/2312.10184
Autor:
Bulava, John, Cid-Mora, Bárbara, Hanlon, Andrew D., Hörz, Ben, Mohler, Daniel, Morningstar, Colin, Moscoso, Joseph, Nicholson, Amy, Romero-López, Fernando, Skinner, Sarah, Walker-Loud, André
Publikováno v:
PoS LATTICE2023
This work presents technical details of determining the finite-volume energy spectra for the scattering amplitude of the coupled-channel $\pi\Sigma - \bar{K}N$ from lattice QCD data. The importance of reliably extracting such spectra lies in the cruc
Externí odkaz:
http://arxiv.org/abs/2312.05154
Autor:
Bulava, John, Cid-Mora, Barbara, Hanlon, Andrew D., Hoerz, Ben, Mohler, Daniel, Morningstar, Colin, Moscoso, Joseph, Nicholson, Amy, Romero-Lopez, Fernando, Skinner, Sarah, Walker-Loud, Andre
Recent results studying the masses and widths of low-lying baryon resonances in lattice QCD are presented. The $S$-wave $N\pi$ scattering lengths for both total isospins $I = 1/2$ and $I = 3/2$ are inferred from the finite-volume spectrum below the i
Externí odkaz:
http://arxiv.org/abs/2310.08375
Autor:
Bulava, John, Cid-Mora, Bárbara, Hanlon, Andrew D., Hörz, Ben, Mohler, Daniel, Morningstar, Colin, Moscoso, Joseph, Nicholson, Amy, Romero-López, Fernando, Skinner, Sarah, Walker-Loud, André
A lattice QCD computation of the coupled channel $\pi\Sigma-\bar{K}N$ scattering amplitudes in the $\Lambda(1405)$ region is detailed. Results are obtained using a single ensemble of gauge field configurations with $N_{\rm f} = 2+1$ dynamical quark f
Externí odkaz:
http://arxiv.org/abs/2307.13471
Autor:
Bulava, John, Cid-Mora, Bárbara, Hanlon, Andrew D., Hörz, Ben, Mohler, Daniel, Morningstar, Colin, Moscoso, Joseph, Nicholson, Amy, Romero-López, Fernando, Skinner, Sarah, Walker-Loud, André
This letter presents the first lattice QCD computation of the coupled channel $\pi\Sigma-\bar{K}N$ scattering amplitudes at energies near $1405\,{\rm MeV}$. These amplitudes contain the resonance $\Lambda(1405)$ with strangeness $S=-1$ and isospin, s
Externí odkaz:
http://arxiv.org/abs/2307.10413
Autor:
Davoudi, Zohreh, Neil, Ethan T., Bauer, Christian W., Bhattacharya, Tanmoy, Blum, Thomas, Boyle, Peter, Brower, Richard C., Catterall, Simon, Christ, Norman H., Cirigliano, Vincenzo, Colangelo, Gilberto, DeTar, Carleton, Detmold, William, Edwards, Robert G., El-Khadra, Aida X., Gottlieb, Steven, Gupta, Rajan, Hackett, Daniel C., Hasenfratz, Anna, Izubuchi, Taku, Jay, William I., Jin, Luchang, Kelly, Christopher, Kronfeld, Andreas S., Lehner, Christoph, Lin, Huey-Wen, Lin, Meifeng, Lytle, Andrew T., Meinel, Stefan, Meurice, Yannick, Mukherjee, Swagato, Nicholson, Amy, Prelovsek, Sasa, Savage, Martin J., Shanahan, Phiala E., Van De Water, Ruth S., Wagman, Michael L., Witzel, Oliver
Lattice gauge theory continues to be a powerful theoretical and computational approach to simulating strongly interacting quantum field theories, whose applications permeate almost all disciplines of modern-day research in High-Energy Physics. Whethe
Externí odkaz:
http://arxiv.org/abs/2209.10758
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:
Cirigliano, Vincenzo, Davoudi, Zohreh, Dekens, Wouter, de Vries, Jordy, Engel, Jonathan, Feng, Xu, Gehrlein, Julia, Graesser, Michael L., Gráf, Lukáš, Hergert, Heiko, Jin, Luchang, Mereghetti, Emanuele, Nicholson, Amy, Pastore, Saori, Ramsey-Musolf, Michael J., Ruiz, Richard, Spinrath, Martin, van Kolck, Ubirajara, Walker-Loud, André
The observation of neutrino oscillations and hence non-zero neutrino masses provided a milestone in the search for physics beyond the Standard Model. But even though we now know that neutrinos are massive, the nature of neutrino masses, i.e., whether
Externí odkaz:
http://arxiv.org/abs/2203.12169
Autor:
Tews, Ingo, Davoudi, Zohreh, Ekström, Andreas, Holt, Jason D., Becker, Kevin, Briceño, Raúl, Dean, David J., Detmold, William, Drischler, Christian, Duguet, Thomas, Epelbaum, Evgeny, Gasparyan, Ashot, Gegelia, Jambul, Green, Jeremy R., Grießhammer, Harald W., Hanlon, Andrew D., Heinz, Matthias, Hergert, Heiko, Hoferichter, Martin, Illa, Marc, Kekejian, David, Kievsky, Alejandro, König, Sebastian, Krebs, Hermann, Launey, Kristina D., Lee, Dean, Navrátil, Petr, Nicholson, Amy, Parreño, Assumpta, Phillips, Daniel R., Płoszajczak, Marek, Ren, Xiu-Lei, Richardson, Thomas R., Robin, Caroline, Sargsyan, Grigor H., Savage, Martin, Schindler, Matthias R., Shanahan, Phiala E., Springer, Roxanne P., Tichai, Alexander, van Kolck, Ubirajara, Wagman, Michael L., Walker-Loud, André, Yang, Chieh-Jen, Zhang, Xilin
Publikováno v:
Few-Body Systems 63, 67 (2022)
This is a collection of perspective pieces contributed by the participants of the Institute of Nuclear Theory's Program on Nuclear Physics for Precision Nuclear Physics which was held virtually from April 19 to May 7, 2021. The collection represents
Externí odkaz:
http://arxiv.org/abs/2202.01105
Autor:
Miller, Nolan, Bradley, Grant, Clark, M. A., Hörz, Ben, Howarth, Dean, Lazarow, Malcolm, Monge-Camacho, Henry, Nicholson, Amy, Rinaldi, Enrico, Vranas, Pavlos, Walker-Loud, André
Hyperon decays present a promising alternative for extracting $\vert V_{us} \vert$ from lattice QCD combined with experimental measurements. Currently $\vert V_{us} \vert$ is determined from the kaon decay widths and a lattice calculation of the asso
Externí odkaz:
http://arxiv.org/abs/2201.01343