Results 41 to 50 of about 4,330,078 (225)

2000 CKM-triangle analysis a critical review with updated experimental inputs and theoretical parameters [PDF]

Journal of High Energy Physics, 2001
Within the Standard Model, a review of the current determination of the sides and angles of the CKM unitarity triangle is presented, using experimental constraints from the measurements of |ε_K|, |V_{ub}/V_{cb}|, Δm_d and from the limit on Δm_s, available in September 2000.
Marco Ciuchini, Vittorio Lubicz, Giulio D'Agostini, Enrico Franco, Guido Martinelli, PARODI, FABRIZIO, Patrick Roudeau, Achille Stocchi   +7 more
openaire   +2 more sources

Determination of B-meson distribution amplitudes from B → π, K, D transition form factors

Journal of High Energy Physics
Recent work on B → π, K and B → D form factors from lattice QCD and light-cone sum rules has made it possible to constrain the inverse moment λ B of the B-meson light-cone distribution amplitudes by performing a global fit of B → π, K, D form factors. We
Dong-Hao Li, Cai-Dian Lü, Ulf-G. Meißner, Jing Gao   +3 more
doaj   +1 more source

CP violation of quarks in A4 modular invariance

Physics Letters B, 2019
We discuss the quark mass matrices in the A4 modular symmetry, where the A4 triplet of Higgs is introduced for each up-quark and down-quark sectors, respectively.
Hiroshi Okada, Morimitsu Tanimoto
doaj   +1 more source

Extractions of |V ub |/|V cb | from a combined study of the exclusive b → u c ℓ − ν ¯ ℓ $$ b\to u(c){\ell}^{-}{\overline{\nu}}_{\ell } $$ decays

Journal of High Energy Physics, 2023
We have extracted the ratio |V ub |/|V cb | from a combined study of the available inputs on B ¯ → π ρ ω ℓ − ν ¯ ℓ $$ \overline{B}\to \left(\pi, \rho, \omega \right){\ell}^{-}{\overline{\nu}}_{\ell } $$ and B ¯ B ¯ s → D ∗ D s ∗ ℓ − ν ¯ ℓ ℓ = μ or e ...
Aritra Biswas, Soumitra Nandi, Ipsita Ray   +2 more
doaj   +1 more source

Stakeholder Divergence in Sustainability Materiality Assessments: Evidence From a European Corporate Group Under the Corporate Sustainability Reporting Directive

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines differences in stakeholders' perceptions of ESG issues in a European corporate group and their implications for double materiality assessment under the Corporate Sustainability Reporting Directive. Drawing on stakeholder theory, it analyses survey responses from 15 stakeholder groups and compares perceived ESG importance ...
Agnieszka Szulc‐Obłoza, Dominik Śliwicki, Monika Pietkiewicz, Marlena Ciechan‐Kujawa, Magdalena Osińska   +4 more
wiley   +1 more source

331 model predictions for rare B and K decays, and ∆F = 2 processes: an update

Journal of High Energy Physics, 2023
Motivated by the improved results from the HPQCD lattice collaboration on the hadronic matrix elements entering ∆M s,d in B s , d 0 − B ¯ s , d 0 $$ {B}_{s,d}^0-{\overline{B}}_{s,d}^0 $$ mixings and the increase of the experimental branching ratio for B ...
Andrzej J. Buras, Fulvia De Fazio
doaj   +1 more source

Sustainable Iron Catalysis for Chemodivergent Oxidation of Lignin‐Based Vanillyl Alcohol: Selective Access to Vanillin and Vanillic Acid

European Journal of Organic Chemistry, EarlyView.
Green reaction media enable chemodivergent oxidation of vanillyl alcohol, selectively affording vanillin or its fully oxidized counterpart, vanillic acid. The use of an earth‐abundant, inexpensive, and nontoxic iron catalyst for the transformation of lignin‐derived alcohol to fine chemicals underscores the sustainability of the process. A low E‐factor (
Rasmiranjan Hota, Chinmaya Kumar Meher, Bidraha Bagh   +2 more
wiley   +1 more source

Unveiling the Link between the Third Law of Comminution and the Grinding Kinetics Behaviour of Several Ores

Metals, 2021
As a continuation of a previous research work carried out to estimate the Bond work index (wi) by using a simulator based on the cumulative kinetic model (CKM), a deeper analysis was carried out to determine the link between the kinetic and energy ...
Victor Ciribeni, Juan M. Menéndez-Aguado, Regina Bertero, Andrea Tello, Enzo Avellá, Matías Paez, Alfredo L. Coello-Velázquez   +6 more
doaj   +1 more source

Operating in perpetual motion? Coping with the dark side of global boundary spanning

Global Strategy Journal, EarlyView.
Abstract Research Summary This paper explores how individuals experience and cope with the demands of global boundary spanning in multinational enterprises (MNEs). We foreground temporary colocation as a modality through which mobile global boundary spanners repeatedly traverse multiple boundaries, triggering intense demands with adverse consequences ...
Kieran M. Conroy, Anthony McDonnell, Stefan Jooss   +2 more
wiley   +1 more source

First look at CKM parameters from early Belle II data [PDF]

Proceedings of European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2019), 2020
After its commissioning in 2018, the Belle II experiment has started registering first physics data delivered by SuperKEKB in 2019. The Belle II physics program focuses on the search for physics beyond the standard model with precise measurements in the flavour sector. The huge targeted dataset and the B-factory particular collision scheme will help to
openaire   +2 more sources