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Related papers: Updated evaluation of $\varepsilon_K$ in the Stand…

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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 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

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 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 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 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 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

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 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 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 present the Standard Model evaluation of the indirect CP violation parameter $\varepsilon_K$ using inputs determined from lattice QCD together with experiment: $|V_{us}|$, $|V_{cb}|$, $\xi_0$, and $\hat{B}_K$. We use the Wolfenstein…

High Energy Physics - Lattice · Physics 2015-04-14 Jon A. Bailey , Yong-Chull Jang , Weonjong Lee , Sungwoo Park

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

Recently several papers extracted $|V_{cb}|$ using the Belle measurement of the exclusive $\bar B \to D^* \ell\bar\nu$ unfolded differential decay rates, available for the first time. Depending on the theoretical inputs, some of the fits…

High Energy Physics - Phenomenology · Physics 2017-11-22 Florian U. Bernlochner , Zoltan Ligeti , Michele Papucci , Dean J. Robinson

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 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

The determination of $|V_{cb}|$ using inclusive and exclusive (semi-)leptonic decays exhibits a long-standing tension of varying ${\cal O}(3 \sigma)$ significance. For the inclusive determination the decay rate is expanded in $1/m_b$ using…

High Energy Physics - Phenomenology · Physics 2016-05-25 Sascha Turczyk

The most common predictions for rare $K$ and $B$ decay branching ratios in the Standard Model are based on the CKM elements $|V_{cb}|$ and $|V_{ub}|$ resulting from global fits, that are in the ballpark of their inclusive and exclusive…

High Energy Physics - Phenomenology · Physics 2022-08-10 Andrzej J. Buras , Elena Venturini

The 2012 PDG reports a tension at the level of $3 \sigma$ between two exclusive determinations of $|V_{ub}|$. They are obtained by combining the experimental branching ratios of $B \to \tau \nu$ and $B \to \pi l \nu$ (respectively) with a…

High Energy Physics - Lattice · Physics 2012-11-28 F. Bahr , F. Bernardoni , B. Blossier , J. Bulava , M. Della Morte , P. Fritzsch , N. Garron , A. Gérardin , J. Heitger , G. von Hippel , A. Ramos , H. Simma , R. Sommer

$B$ processes are a rich source of potential anomalies that could lead to the discovery of BSM physics. The long-standing tension between the inclusive and the exclusive determinations of the CKM matrix elements $|V_{xb}|$, or the current…

High Energy Physics - Phenomenology · Physics 2025-04-11 Alejandro Vaquero Aviles-Casco
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