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Related papers: Current status of $\varepsilon_K$ with lattice QCD…

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We report the Standard Model evaluation of the indirect CP violation parameter $\varepsilon_K$ using inputs determined from lattice QCD: the kaon bag parameter $\hat{B}_K$, $\xi_0$, $|V_{us}|$ from the $K_{\ell 3}$ and $K_{\mu 2}$ decays,…

High Energy Physics - Lattice · Physics 2015-08-26 Jon A. Bailey , Yong-Chull Jang , Weonjong Lee , Sungwoo Park

We present results for $\varepsilon_K$, the indirect CP violation parameter, calculated in the Standard Model using inputs from lattice QCD: the kaon bag parameter $\hat{B}_K$, and the CKM matrix element $V_{cb}$ from the axial current form…

High Energy Physics - Lattice · Physics 2014-11-13 Jon A. Bailey , Yong-Chull Jang , Weonjong Lee

We present results for the indirect CP violation parameter $\varepsilon_K$ determined directly from the standard model using lattice QCD to fix the inputs $\hat{B}_K$, $\xi_0$, $|V_{us}|$, and $|V_{cb}|$. We use the FLAG and SWME results…

High Energy Physics - Lattice · Physics 2015-11-19 Jon A. Bailey , Yong-Chull Jang , Weonjong Lee , Sungwoo Park

We report updated results for $\varepsilon_K$, the indirect CP violation parameter in neutral kaons, which is evaluated directly from the standard model with lattice QCD inputs. We use lattice QCD inputs to fix $\bar{B}_K$, $|V_{cb}|$,…

High Energy Physics - Lattice · Physics 2018-04-18 Yong-Chull Jang , Weonjong Lee , Sunkyu Lee , Jaehoon Leem

We present theoretical results for the indirect CP violation parameter, $ |\varepsilon_K| $, evaluated directly within the Standard Model using lattice QCD inputs including $ B_K $, $ |V_{cb}| $, $ |V_{us}| $, $ |V_{ud}| $, $ \xi_0 $, $…

High Energy Physics - Lattice · Physics 2025-07-16 Seungyeob Jwa , Jeehun Kim , Sunghee Kim , Sunkyu Lee , Weonjong Lee , Sungwoo Park

We report the current status of $\varepsilon_K$, the indirect CP violation parameter in the neutral kaon system, evaluated using the lattice QCD inputs. We use lattice QCD to fix $\hat{B}_K$, $\xi_0$, $\xi_2$, $|V_{us}|$, $m_c(m_c)$, and…

High Energy Physics - Lattice · Physics 2016-11-03 Jon A. Bailey , Weonjong Lee , Jaehoon Leem , Sungwoo Park , Yong-Chull Jang

We report recent progress on $\varepsilon_K$ evaluated directly from the standard model (SM) with lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$, $|V_{ud}|$, $\xi_0$, $\xi_2$, $\xi_\text{LD}$, $f_K$, and $m_c$. We find that…

High Energy Physics - Lattice · Physics 2023-12-22 Seungyeob Jwa , Jeehun Kim , Sunghee Kim , Sunkyu Lee , Weonjong Lee , Jaehoon Leem , Jeonghwan Pak , Sungwoo Park

We present recent updates for $\varepsilon_K$ determined directly from the standard model (SM) with lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$, $\xi_0$, $\xi_2$, $\xi_\text{LD}$, $f_K$, and $m_c$. We find that the…

High Energy Physics - Lattice · Physics 2022-03-04 Jeehun Kim , Yong-Chull Jang , Sunkyu Lee , Weonjong Lee , Jaehoon Leem , Chanju Park , Sungwoo Park

We present updated results for $\varepsilon_K$ determined directly from the standard model (SM) with lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$, $\xi_0$, $\xi_2$, $\xi_\text{LD}$, $F_K$, and $m_c$. We find that the…

High Energy Physics - Lattice · Physics 2019-12-09 Jon A. Bailey , Sunkyu Lee , Weonjong Lee , Yong-Chull Jang , Jaehoon Leem , Sungwoo Park

We present updated results for $\varepsilon_K$ determined directly from the standard model (SM) with lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$, $\xi_0$, $\xi_2$, $\xi_\text{LD}$, $f_K$, and $m_c$. We find that the…

High Energy Physics - Lattice · Physics 2019-12-13 Jeehun Kim , Sunkyu Lee , Weonjong Lee , Yong-Chull Jang , Jaehoon Leem , Sungwoo Park

We report recent progress on $\varepsilon_K$ evaluated directly from the standard model (SM) with lattice QCD inputs such as $\hat{B}_K$, exclusive $|V_{cb}|$, $|V_{us}|$, $|V_{ud}|$, $\xi_0$, $\xi_2$, $\xi_\text{LD}$, $f_K$, and $m_c$. We…

High Energy Physics - Lattice · Physics 2025-02-11 Seungyeob Jwa , Jeehun Kim , Sunghee Kim , Sunkyu Lee , Weonjong Lee , Jaehoon Leem , Sungwoo Park

We present recent updates for $\varepsilon_K$ determined directly from the standard model (SM) with lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$, $\xi_0$, $\xi_2$, $\xi_\text{LD}$, $f_K$, and $m_c$. We find that the…

High Energy Physics - Lattice · Physics 2023-02-07 Sunghee Kim , Sunkyu Lee , Weonjong Lee , Jaehoon Leem , Sungwoo Park

In the standard model (SM), the CP violation is introduced through a single phase in the CKM matrix. The neutral kaon system is one of the most precise channels to test how the SM theory describes the experiment data such as $\epsilon_K$…

High Energy Physics - Lattice · Physics 2012-11-06 Yong-Chull Jang , Weonjong Lee

We report a strong tension in $\varepsilon_K$ at the $4\sigma$ level between the experimental value and the theoretical value calculated directly from the standard model using lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$,…

High Energy Physics - Lattice · Physics 2018-11-21 Jon A. Bailey , Sunkyu Lee , Weonjong Lee , Jaehoon Leem , Sungwoo Park

We present the current status of $\varepsilon_K$ evaluated directly from the standard model using lattice QCD inputs. The lattice QCD inputs include $\hat{B}_K$, $\xi_0$, $\xi_2$, $|V_{us}|$, $m_c(m_c)$, and $|V_{cb}|$. Recently, FLAG has…

High Energy Physics - Lattice · Physics 2017-04-05 Weonjong Lee

In this talk I review some recent results from lattice QCD calculations which aim to a more accurate determination of the Standard Model parameters in the quark sector. After a review of our current knowledge of these parameters, I present…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Lubicz

We show that it is now possible to fully determine the CKM matrix, for the first time, using lattice QCD. |V_{cd}|, |V_{cs}|, |V_{ub}|, |V_{cb}| and |V_{us}| are, respectively, directly determined with our lattice results for form factors…

High Energy Physics - Lattice · Physics 2007-05-23 Masataka Okamoto

We perform a global fit to the CKM unitarity triangle using the latest experimental and theoretical constraints. Our emphasis is on the hadronic weak matrix elements that enter the analysis, which must be computed using lattice QCD or other…

High Energy Physics - Phenomenology · Physics 2010-04-06 Jack Laiho , Ruth S. Van de Water , Enrico Lunghi

We perform a combined analysis of the unitarity triangle and of the CP violating parameter epsilon'/epsilon using the most recent determination of the relevant experimental data and, whenever possible, hadronic matrix elements from lattice…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Ciuchini , E. Franco , L. Giusti , V. Lubicz , G. Martinelli

The first lattice result from the RBC and UKQCD Collaborations and improved perturbative calculations of $\varepsilon^{\prime}_K / \varepsilon_K$ have implied that the Standard-Model (SM) expectation deviates from measured values at the…

High Energy Physics - Phenomenology · Physics 2018-11-09 Teppei Kitahara
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