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View article: HFLAV input to the 2026 update of the European Strategy for Particle Physics
HFLAV input to the 2026 update of the European Strategy for Particle Physics Open
Heavy-flavour physics is an essential component of the particle-physics programme, offering critical tests of the Standard Model and far-reaching sensitivity to physics beyond it. Experiments such as LHCb, Belle II, and BESIII drive progre…
View article: Physics Briefing Book: Input for the 2026 update of the European Strategy for Particle Physics
Physics Briefing Book: Input for the 2026 update of the European Strategy for Particle Physics Open
The European Strategy for Particle Physics (ESPP) reflects the vision and presents concrete plans of the European particle physics community for advancing human knowledge in fundamental physics. The ESPP is updated every five-to-six years …
View article: Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2023
Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2023 Open
This paper reports world averages of measurements of $b$-hadron, $c$-hadron, and $τ$-lepton properties obtained by the Heavy Flavour Averaging Group using results available before October 2023. In rare cases, significant results obtained s…
View article: Pengaruh Consumer E-Sports Engagement terhadap Consumption Behaviour Pemain E-Sports
Pengaruh Consumer E-Sports Engagement terhadap Consumption Behaviour Pemain E-Sports Open
This study aims to examine the impact of Consumer Electronic Sports Engagement (CeSE) on the consumption behavior of eSports players. The study involved 120 respondents who are actively engaged in eSports activities. The findings indicate …
View article: Prospects of searches for $b\to s\nu\bar{\nu}$ decays at FCC-ee
Prospects of searches for $b\to s\nu\bar{\nu}$ decays at FCC-ee Open
We investigate the physics reach and potential for the study of various decays involving a \bsnunu transition at the Future Circular Collider running electron-positron collisions at the $Z$-pole (FCC-ee). Signal and background candidates, …
View article: Prospects for searches of $$ b\to s\nu \overline{\nu} $$ decays at FCC-ee
Prospects for searches of $$ b\to s\nu \overline{\nu} $$ decays at FCC-ee Open
A bstract We investigate the physics reach and potential for the study of various decays involving a $$ b\to s\nu \overline{\nu} $$ transition at the Future Circular Collider running electron-positron collisions at the Z -pole (FCC-ee). Si…
View article: Focus topics for the ECFA study on Higgs / Top / EW factories
Focus topics for the ECFA study on Higgs / Top / EW factories Open
In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e^-$ Higgs / Top / Electroweak factory, we propose to define…
View article: Review of Particle Physics
Review of Particle Physics Open
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,143 new measurements from 709 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Hi…
View article: Custom Orthogonal Weight functions (COWs) for Event Classification
Custom Orthogonal Weight functions (COWs) for Event Classification Open
A common problem in data analysis is the separation of signal and background. We revisit and generalise the so-called $sWeights$ method, which allows one to calculate an empirical estimate of the signal density of a control variable using …
View article: arXiv : Snowmass 2021 Letter of Interest: Decays of Heavy Flavors Beauty, Charm, and Tau
arXiv : Snowmass 2021 Letter of Interest: Decays of Heavy Flavors Beauty, Charm, and Tau Open
The Heavy Flavor Averaging Group provides this Letter of Interest (LOI) as input to the Snowmass 2021 Particle Physics Community Planning Exercise organized by the Division of Particles and Fields of the American Physical Society. Research…
View article: Snowmass 2021 Letter of Interest: Decays of Heavy Flavors Beauty, Charm, and Tau
Snowmass 2021 Letter of Interest: Decays of Heavy Flavors Beauty, Charm, and Tau Open
The Heavy Flavor Averaging Group provides this Letter of Interest (LOI) as input to the Snowmass 2021 Particle Physics Community Planning Exercise organized by the Division of Particles and Fields of the American Physical Society. Research…
View article: Review of Particle Physics
Review of Particle Physics Open
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,324 new measurements from 878 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Hi…
View article: Origins of the method to determine the CKM angle $γ$ using $B^{\pm} \to D K^{\pm}$, $D \to K_{\rm S}^0π^+π^-$ decays
Origins of the method to determine the CKM angle $γ$ using $B^{\pm} \to D K^{\pm}$, $D \to K_{\rm S}^0π^+π^-$ decays Open
The angle $γ$ of the Cabibbo--Kobayashi--Maskawa unitarity triangle is a benchmark parameter of the Standard Model of particle physics. A method to determine $γ$ from $B^{\pm} \to D K^{\pm}$ with subsequent $D \to K_{\rm S}^0π^+π^-$ or sim…
View article: A strategy for simultaneous measurement of the CKM angle $\gamma$ in multiple $B$ meson decays
A strategy for simultaneous measurement of the CKM angle $\gamma$ in multiple $B$ meson decays Open
Several methods exist to measure CP violation observables related to the CKM Unitarity Triangle angle $\gamma$ using $B$ meson decays. These observables are different for every $B$ meson decay considered, although the information they cont…
View article: Measurement of the $CP$-violating phase $\phi_s$ from $B_{s}^{0}\to J/\psi\pi^+\pi^-$ decays in 13 TeV $pp$ collisions
Measurement of the $CP$-violating phase $\phi_s$ from $B_{s}^{0}\to J/\psi\pi^+\pi^-$ decays in 13 TeV $pp$ collisions Open
Decays of $B_{s}^{0}$ and $\\overline{B}{}_{s}^{0}$ mesons into $J/\\psi\\pi^+\\pi^-$ final states are studied in a data sample corresponding to 1.9 fb$^{-1}$ of integrated luminosity collected with the LHCb detector in 13 TeV $pp$ collisi…
View article: HFLAV input to the update of the European Strategy for Particle Physics
HFLAV input to the update of the European Strategy for Particle Physics Open
The Heavy Flavor Averaging Group provides with this document input to the European Strategy for Particle Physics. Research in heavy-flavor physics is an essential component of the particle-physics program, both within and beyond the Standa…
View article: Observation of the decay $\Lambda_b^0 \to \Lambda_c^+ p \overline{p} \pi^-
Observation of the decay $\Lambda_b^0 \to \Lambda_c^+ p \overline{p} \pi^- Open
The decay Λb0→Λc+pp‾π− is observed using pp collision data collected with the LHCb detector at centre-of-mass energies of s=7 and 8 Tev, corresponding to an integrated luminosity of 3 fb−1 . The ratio of branching fractions between Λb0→Λc+…
View article: Future prospects for exploring present day anomalies in flavour physics measurements with Belle II and LHCb
Future prospects for exploring present day anomalies in flavour physics measurements with Belle II and LHCb Open
A range of flavour physics observables show tensions with their corresponding Standard Model expectations: measurements of leptonic flavour-changing neutral current processes and ratios of semi-leptonic branching fractions involving differ…
View article: Measurement of $CP$ violation in $B^0\\rightarrow J/\\psi K^0_\\mathrm{S}$ and $B^0\\rightarrow\\psi(2S) K^0_\\mathrm{S}$ decays
Measurement of $CP$ violation in $B^0\\rightarrow J/\\psi K^0_\\mathrm{S}$ and $B^0\\rightarrow\\psi(2S) K^0_\\mathrm{S}$ decays Open
A measurement is presented of decay-time-dependent CP violation in the decays B$^{0}$ → J/ψ K$_{S}^{0}$ and B$^{0}$ → ψ(2S)K$_{S}^{0}$ , where the J/ψ is reconstructed from two electrons and the ψ(2S) from two muons. The analysis uses a sa…
View article: Expression of Interest for a Phase-II LHCb Upgrade: Opportunities in flavour physics, and beyond, in the HL-LHC era
Expression of Interest for a Phase-II LHCb Upgrade: Opportunities in flavour physics, and beyond, in the HL-LHC era Open
A Phase-II Upgrade is proposed for the LHCb experiment in order to take full advantage of the flavour-physics opportunities at the HL-LHC, and other topics that can be studied with a forward spectrometer. This Upgrade, which will be instal…
View article: Search for Higgs bosons decaying into photons at CMS
Search for Higgs bosons decaying into photons at CMS Open
We present a new result in the search for Higgs bosons decaying into two photons at the CMS detector using the full LHC Run 1 dataset. The data samples correspond to integrated luminosities of 5.1~fb$^{-1}$ and 19.7~fb$^{-1}$ at centre-of-…
View article: CP violation in beauty and charm decays at LHCb
CP violation in beauty and charm decays at LHCb Open
An overview of selected results on CP violation in beauty and charm decays at LHCb is presented. The first observation of $D^0 – \\bar{D}^0$ mixing in $D^0 → K^+ π^− π^+ π^−$ decays is shown. A measurement of direct $CP$ violation in $D^0 …