Publications related to Observation of a new Xi(0)(b) state

Related publications (22)

Angular analysis of the decay $ {B}_s^0 $ → ϕe+e−

Aurelio Bay, Frédéric Blanc, Marie Theres Christin Bachmayer

An angular analysis of the decay

{B}_s^0

→ ϕe + e − is presented, using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8 and 13 TeV. The combined dataset corresponds to an integrated ...

Springer2025

Search for Λ- Λ ¯ oscillation in J/ψ → Λ Λ ¯ decay

Yunxuan Song

Using (10087±44)×106 J/ψ decays collected by the BESIII detector at the BEPCII collider, we search for baryon number violation via Λ-Λ¯ oscillation in the decay J/ψ→ΛΛ¯. No evidence for Λ-Λ¯ oscillation is observed. The upper limit on the time-integrated p ...

2025

Measurement of ϕ(1020) meson production in fixed-target pNe collisions at $ \sqrt{s_{NN}} $ = 68.5 GeV

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Sebastian Schulte, Marie Theres Christin Bachmayer, Serhii Cholak, Ettore Zaffaroni, Aravindhan Venkateswaran, Luis Miguel Garcia Martin, Vitalii Lisovskyi, Federico Ronchetti, Radoslav Marchevski, Anni Matilda Kauniskangas, Dimitrios Kaminaris, Raphaël van Laak, Pierre Paul Louis Mayencourt, Brianna Leililani Thielen, Arnaud Merlin Gauthey, Gianluca Zunica, Abdul-Kerim Guseinov, Esteban Curras Rivera, Yifei Song, Roberto Ribatti, Alexandre Brea Rodriguez, Rita De Sousa Ataíde Da Silva, Spencer Edward Collaviti

The first measurement of ϕ (1020) meson production in fixed-target p Ne collisions at

\sqrt{s_{NN}}

= 68 . 5 GeV is presented. The ϕ (1020) mesons are reconstructed in their K + K − decay in a data sample consisting of proton collisions on neon nuclei ...

Springer2025

Conformal leptogenesis in composite Higgs models

Majid Ekhterachian

We study the generation of the baryon asymmetry in Composite Higgs models with partial compositeness of the Standard Model (SM) fermions and heavy right-handed neutrinos, developing for the first time a complete picture of leptogenesis in that setup. The a ...

SPRINGER2025

Observation of d → (k)over-bar1 (1270)μ+νμ and Test of Lepton Flavor Universality with d → (k)over-bar1 (1270)l+νl

Yunxuan Song

By analyzing 7.93 fb(-1) of e(+)e(-) collision data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we report the observation of the semimuonic decays of D+ -> (K) over bar (1) (1270)(0)mu(+)nu( ...

AMER PHYSICAL SOC2025

A Dynamical Yukawa2 Model

Martin Hairer

We prove local (in space and time) well-posedness for a mildly regularised version of the stochastic quantisation of the Yukawa(2) Euclidean field theory with a self-interacting boson. Our regularised dynamic is still singular but avoids non-local divergen ...

SPRINGER2025

Observation of the Decay Ψ(3686) →σ0(σ)over-bar0ω

Yunxuan Song

Using a dataset of (27.12 +/- 0.14) x 10(8) psi(3686) events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of the decay psi(3686) -> Sigma(0)(Sigma) over bar (0)omega. with a statistical significance of ...

AMER PHYSICAL SOC2025

Study of the rare decay J/ψ → μ+μ-μ+μ-

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Sebastian Schulte, Donal Patrick Hill, Marie Theres Christin Bachmayer, Serhii Cholak, Ettore Zaffaroni, Aravindhan Venkateswaran, Luis Miguel Garcia Martin, Vitalii Lisovskyi, Elisabeth Maria Niel, Federico Ronchetti, Radoslav Marchevski, Anni Matilda Kauniskangas, Dimitrios Kaminaris, Raphaël van Laak, Pierre Paul Louis Mayencourt, Brianna Leililani Thielen, Arnaud Merlin Gauthey, Gianluca Zunica, Abdul-Kerim Guseinov, Esteban Curras Rivera, Yifei Song, Roberto Ribatti, Alexandre Brea Rodriguez, Rita De Sousa Ataíde Da Silva, Xiafei Chang

The rare electromagnetic J/psi -> mu(+)mu(-)mu(+)mu(-) decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the LHCb experiment during 2016-2018 at a center-of-mass energy of 13 Te ...

Springer Nature2024

Study of the decay D0 → ρ(770)- e+νe

Yunxuan Song

We present a study of the semileptonic decay D-0 -> pi(-)pi(0)e(+)nu(e) using an e(+)e(-) annihilation data sample of 7.93 fb(-1) collected at the center-of-mass energy of 3.773 GeV with the BESIII detector. The branching fraction of D-0 -> rho(770)(-) e(+ ...

AMER PHYSICAL SOC2024

First observation of the Λb0→ D+D−Λ decay

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Sebastian Schulte, Donal Patrick Hill, Marie Theres Christin Bachmayer, Serhii Cholak, Ettore Zaffaroni, Surapat Ek-In, Aravindhan Venkateswaran, Renato Quagliani, Luis Miguel Garcia Martin, Vitalii Lisovskyi, Elisabeth Maria Niel, Federico Ronchetti, Radoslav Marchevski, Anni Matilda Kauniskangas, Dimitrios Kaminaris, Raphaël van Laak, Pierre Paul Louis Mayencourt, Brianna Leililani Thielen, Gianluca Zunica, Abdul-Kerim Guseinov, Esteban Curras Rivera, Yifei Song

The Λb0 → D+D−Λ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.3 fb−1. Using the B0 → D+D−KS0 decay as a referenc ...

Springer Nature2024

Search for the radiative decays D+→ γρ+ and D+→ γK*+

Yunxuan Song

We search for the radiative decays D+ → γρ+ and D+ → γK*+ using 20.3 fb−1 of e+e− annihilation data collected at the center-of-mass energy s = 3.773 GeV by the BESIII detector operating at the BEPCII collider. No significant signals are observed, and the u ...

Springer2024

Broad-wave-vector spin pumping of flat-band magnons

Jean-Philippe Ansermet

We report the experimental observation of large spin -pumping signals in the YIG/Pt system driven by broad -wave -vector spin -wave spin current. 280-nm-wide microwave inductive antennas offer broad -wavevector excitation, which, in combination with the qu ...

American Physical Society (APS)2024

Observation of the decays B(s)0B(s)0 → Ds1s1(2536)∓∓K±±

Lesya Shchutska

This paper reports the observation of the decays

B_{(s)}^{0}\to D_{s1}(2536)^{\mp}K^{\pm}

using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of

9\,\mathrm{fb}^{-1}

. The branching fractions of ...

2023

Measurement of the ratio of branching fractions B(Bc+→Bs0π+)/B(Bc+→J/ψπ+)

Lesya Shchutska

The ratio of branching fractions of Bc+→Bs0π+ and Bc+→J/ψπ+ decays is measured with proton-proton collision data of a centre-of-mass energy of 13 TeV. The data were collected with the LHCb experiment during 2016–2018, corresponding to an integrated luminos ...

Springer Nature2023

Broadband Mechanically Tunable Metasurface Reflectivity Modulator in the Visible Spectrum

Olivier Martin, Luis Guillermo Villanueva Torrijo, Niels Quack, Andrei Kiselev, Dorian Giraud Herle

Reflectivity modulation is a critical feature for applicationsin telecommunications, 3D imaging and printing, advanced laser machining,or portable displays. Tunable metasurfaces have recently emerged asa promising implementation for miniaturized and high-p ...

AMER CHEMICAL SOC2023

Search for the decay B-0 -> phi mu(+) mu(-)

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Michel De Cian, Vladimir Macko, Sebastian Schulte, Donal Patrick Hill, Guillaume Max Pietrzyk, Maria Vieites Diaz, Marie Theres Christin Bachmayer, Lino Ferreira Lopes, Matthieu Philippe Luther Marinangeli, Serhii Cholak, Veronica Sølund Kirsebom, Ettore Zaffaroni, Surapat Ek-In, Ana Bárbara Rodrigues Cavalcante, Sara Celani, Renato Quagliani, Carina Trippl, Sonia Amina Bouchiba, Alison Maria Tully, Elisabeth Maria Niel, Maarten Willibrord Uriël Van Dijk

A search for the decay B-0 -> phi mu(+) mu(-) is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb(-1). No evidence for the B-0 -> ...

Springer Nature2022

First Measurement of the Z→μ+μ- Angular Coefficients in the Forward Region of pp Collisions at s=13 TeV

Lesya Shchutska

The first study of the angular distribution of μ+μ- pairs produced in the forward rapidity region via the Drell-Yan reaction pp→γ*/Z+X→ℓ+ℓ-+X is presented, using data collected with the LHCb detector at a center-of-mass energy of 13 TeV, corresponding to a ...

2022

The HEV Ventilator: at the interface between particle physics and biomedical engineering

Aurelio Bay, Florian Bernard, Raymond Frei

A high-quality, low-cost ventilator, dubbed HEV, has been developed by the particle physics community working together with biomedical engineers and physicians around the world. The HEV design is suitable for use both in and out of hospital intensive care ...

ROYAL SOC2022

Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma

Ambrogio Fasoli, Ivo Furno, Patrick Blanchard, Yanis Andrebe, Riccardo Agnello, Christine Stollberg

A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self -modulation (SM) instability. We show that SM of a proton bunch can be seeded by the wakefields driven by a preceding electron bunch. SM timing reproducibility ...

2022

Emergence of active turbulence in microswimmer suspensions due to active hydrodynamic stress and volume exclusion

Kai Qi

Microswimmers are ubiquitous in nature and present highly-dynamic collective motion. This study presents computational simulations of spheroidal model-microswimmers confined between two walls, revealing two collective dynamic states, giant motile clusters ...

2022