Publications associées à Search for the rare decay J/ψ → γD0 + c.c. at BESIII

Publications associées (14)

Search for $B_{(s)}^{*0}\rightarrow \mu ^+\mu ^-$ in $B_c^+\rightarrow \pi ^+\mu ^+\mu ^-$ decays

Aurelio Bay, Frédéric Blanc, Marie Theres Christin Bachmayer

A search for the very rare

B^{*0}\rightarrow \mu ^+\mu ^-

and

B_{s}^{*0}\rightarrow \mu ^+\mu ^-

decays is conducted by analysing the

B_c^+\rightarrow \pi ^+\mu ^+\mu ^-

process. The analysis uses proton-proton collision data collected with the LHCb ...

Springer Science and Business Media LLC2025

Measurement of the photon polarisation in B+ -> K+ pi- pi+ gamma decays at LHCb

Marie Theres Christin Bachmayer

All physical processes can be described, at a fundamental level, through interactions of elementary particles. The Standard Model of particle physics (SM) describes three of the four known fundamental forces and all of the known elementary particles. The a ...

EPFL2025

Measurement of the strong-phase difference between D0 and D0 ¯ ?k K-p p- in bins of phase space

Yunxuan Song

A first determination of the strong-phase difference between D0 and D0¯→K+K-π+π- is performed using e+e-→ψ(3770)→DD¯ data collected by the BESIII detector corresponding to an integrated luminosity of 20.3 fb-1. The measurements are made in four pairs of bi ...

2025

Percolation for 2D Classical Heisenberg Model and Exit Sets of Vector Valued GFF

Juhan Aru

Our motivation in this paper is twofold. First, we study the geometry of a class of exploration sets, called exit sets, which are naturally associated with a 2D vector-valued Gaussian Free Field:

\phi : \mathbb{Z}^2 \rightarrow \mathbb{R}^N

,

N \ge 1

. W ...

SPRINGER2025

Test of Lepton Universality and Measurement of the Form Factors of D0 →k∗ (892)-μ+νμ

Yunxuan Song

One of the main goals of studying semileptonic decays in flavor physics is to gain a better understanding of hadronic transitions in the nonperturbative region of Quantum Chromodynamics. This involves measuring Cabibbo-Kobayashi-Maskawa matrix elements, un ...

American Physical Society (APS)2025

Search for C-even states decaying to Ds±Ds*∓ with masses between 4.08 and 4.32 GeV/c2

Yunxuan Song

Six C-even states, denoted as X, with quantum numbers J(PC) = 0(-+), 1(++), or 2(++), are searched for via the e(+)e(-) -> gamma(DsDs*-/+)-D-+/- process using (1667.39 +/- 8.84) pb(-1) of e(+)e(-) collision data collected with the BESIII detector operating ...

American Physical Society2024

Search for Higgs boson pair production in the b(b)over-barW+W- decay mode in proton-proton collisions at √s=13 TeV

Jan Steggemann, Konstantin Androsov, Anna Mascellani, Joanna Malgorzata Wanczyk

A search for Higgs boson pair (HH) production with one Higgs boson decaying to two bottom quarks and the other to two W bosons are presented. The search is done using proton-proton collisions data at a centre-of-mass energy of 13TeV, corresponding to an in ...

SPRINGER2024

First search for K+ → π0πμe decays

Radoslav Marchevski, Alina Kleimenova, Xiafei Chang

The first search for the lepton number violating decay K+→π0π−μ+e+ and lepton flavour violating decays K+→π0π+μ−e+, K+→π0π+μ+e− has been performed using a dataset collected by the NA62 experiment at CERN in 2016–2018. Upper limits of 2.9×10−10, 3.1×10−10 a ...

2024

Amplitude analysis of the decays D0 → π+π-π+π- and D0 → π+π-π0π0

Yunxuan Song

Using e(+)e(-) annihilation data corresponding to an integrated luminosity of 2.93 fb(-1) taken at the center-of-mass energy root s = 3.773 GeV with the BESIII detector, a joint amplitude analysis is performed on the decays D-0 -> pi(+)pi(-)pi(+)pi(-) and ...

IOP Publishing Ltd2024

Bridge editing of spin-flip emitters gives insight into excited state energies and dynamics

Sascha Feldmann

Six-coordinate chromium(iii) complexes with high spin-flip (SF) photoluminescence quantum yields and lifetimes (molecular rubies) have attracted huge interest in the past years due to their applicability in sensing, photocatalysis or circularly polarised e ...

ROYAL SOC CHEMISTRY2024

Measurement of the branching fraction of B0→ J/ψπ0 decays

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 ratio of branching fractions between B0 → J/ψπ0 and B+ → J/ψK*+ decays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is (Formula presented.) where ...

Springer Nature2024

Search for ηc(2S) → 2(π+ π-) and improved measurement of χcJ → 2(π+ π-)

Yunxuan Song

We search for the hadronic decay eta(c)(2S) -> 2(pi(+) pi(-)) in the psi(3686) -> gamma eta(c)(2S) radiative decay using (27.12 +/- 0.14) x 10(8) psi(3686) events collected by the BESIII detector at the BEPCII collider. No significant signal is found, and ...

American Physical Society2024

Measurement of associated J/ψ-ψ(2S) production cross-section in pp collisions at √s = 13 TeV

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, Veronica Sølund Kirsebom, Ettore Zaffaroni, Surapat Ek-In, Aravindhan Venkateswaran, Sara Celani, Renato Quagliani, Luis Miguel Garcia Martin, Vitalii Lisovskyi, Elisabeth Maria Niel, Federico Ronchetti, Radoslav Marchevski, Anni Matilda Kauniskangas, Dimitrios Kaminaris, Raphaël van Laak, Brianna Leililani Thielen, Yifei Song

The cross-section of associated J/ψ-ψ(2S) production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb−1, collected by the LHCb experiment. ...

Springer Nature2024

Multimodal Approach Reveals the Symmetry-Breaking Pathway to the Broken Helix in EuIn2As2

Jian Rui Soh

Understanding and manipulating emergent phases, which are themes at the forefront of quantummaterials research, rely on identifying their underlying symmetries. This general principle has been particularly prominent in materials with coupled electronic and ...

American Physical Society2024

Search for the rare decay <i>J</i>/ψ → γ<i>D</i><SUP>0</SUP> + c.c. at BESIII

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Search for $B_{(s)}^{*0}\rightarrow \mu ^+\mu ^-$ in $B_c^+\rightarrow \pi ^+\mu ^+\mu ^-$ decays

Measurement of the photon polarisation in B+ -> K+ pi- pi+ gamma decays at LHCb

Measurement of the strong-phase difference between D0 and D0 ¯ ?k K-p p- in bins of phase space

Percolation for 2D Classical Heisenberg Model and Exit Sets of Vector Valued GFF

Test of Lepton Universality and Measurement of the Form Factors of D0 →k∗ (892)-μ+νμ

Search for C-even states decaying to Ds±Ds*∓ with masses between 4.08 and 4.32 GeV/c2

Search for Higgs boson pair production in the b(b)over-barW+W- decay mode in proton-proton collisions at √s=13 TeV

First search for K+ → π0πμe decays

Amplitude analysis of the decays D0 → π+π-π+π- and D0 → π+π-π0π0

Bridge editing of spin-flip emitters gives insight into excited state energies and dynamics

Measurement of the branching fraction of B0→ J/ψπ0 decays

Search for ηc(2S) → 2(π+ π-) and improved measurement of χcJ → 2(π+ π-)

Measurement of associated J/ψ-ψ(2S) production cross-section in pp collisions at √s = 13 TeV

Multimodal Approach Reveals the Symmetry-Breaking Pathway to the Broken Helix in EuIn2As2