H. Cai

activity

20182024

most citedCombination of the searches for pair-produced vector-like partners of the third-generation quarks at

s =

13 TeV with the ATLAS detector

155 citations · 1.6k across the 158 of their papers we have counts for

collaborators

Showing 2024Show all

105 papers · 1 filter

hep-ex2024

Search for $η_{c} (2 S) \to p p ˉ$ and branching fraction measurements of $χ_{c J} \to p p ˉ$ via $ψ (2 S)$ radiative decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +648

Using $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (2 S)$ events collected by the BESIII detector operating at BEPCII, we search for the decay $η_{c} (2 S) \to p p ˉ$ via the process $ψ(2S)\to γη…

hep-ex2024★ 4 cited

Measurement of the branching fractions of the decays $Λ_{c}^{+} \to Λ K_{S}^{0} K^{+}$ , $Λ_{c}^{+} \to Λ K_{S}^{0} π^{+}$ and $Λ_{c}^{+} \to Λ K^{*+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

Studies are performed of the Cabibbo-favored decay $Λ_{c}^{+} \to Λ K_{S}^{0} K^{+}$ and the singly Cabibbo-suppressed decay $Λ_{c}^{+} \to Λ K_{S}^{0} π^{+}$ , based on a sample of $e^{+}e^{-}…

hep-ex2024

Observation of $χ_{c 0} \to Σ^{+} Σ ˉ^{-} η$ and evidence for $χ_{c 1, 2} \to Σ^{+} Σ ˉ^{-} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

Using $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector, the decay $χ_{c 0} \to Σ^{+} Σ ˉ^{-} η$ is observed for the first time with a statistical sign…

hep-ex2024★ 3 cited

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to p π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

Utilizing 4.5 $fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected with the BESIII detector at the BEPCII collider at center-of-mass energies between 4.600 and 4.699 GeV, the f…

hep-ex2024

Search for $e^{+} e^{-} \to ϕ χ_{c 0}$ and $ϕ η_{c 2} (1 D)$ at center-of-mass energies from 4.47 to 4.95 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Utilizing a data set of $6.7$ fb $^{- 1}$ from electron-positron collisions recorded by the BESIII detector at the BEPCII storage ring, a search is conducted for the processes $e^{+}…

hep-ex2024

Observation of $χ_{c J} \to p p ˉ K_{S}^{0} K^{-} π^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +653

By analyzing $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decays of $χ_{cJ} \to p \bar{p} K^0_S K^- π^+ +c.c…

hep-ex2024★ 5 cited

Measurements of $ψ (2 S)$ and $χ_{c 1} (3872)$ production within fully reconstructed jets

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1114

This paper presents the first measurement of $ψ (2 S)$ and $χ_{c 1} (3872)$ meson production within fully reconstructed jets. Each quarkonium state (tag) is reconstructed via its dec…

hep-ex2024★ 1 cited

Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector

ATLAS Collaboration

A search is conducted for a new scalar boson $S$ , with a mass distinct from that of the Higgs boson, decaying into four leptons ( $ℓ =$ $e$ , $μ$ ) via an intermediate state contai…

hep-ex2024★ 9 cited

Test of lepton flavour universality with $B_{s}^{0} \to ϕ ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1128

Lepton flavour universality in rare $b \to s$ transitions is tested for the first time using $B_{s}^{0}$ meson decays. The measurements are performed using $pp$ collision data c…

hep-ex2024★ 13 cited

Observation of a rare beta decay of the charmed baryon with a Graph Neural Network

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

The beta decay of the lightest charmed baryon $Λ_{c}^{+}$ provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for inve…

hep-ex2024

Measurements of the $C P$ -even fractions of $D^{0} \to π^{+} π^{-} π^{0}$ and $D^{0} \to K^{+} K^{-} π^{0}$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +653

The $C P$ -even fractions ( $F_{+}$ ) of the decays $D^{0} \to π^{+} π^{-} π^{0}$ and $D^{0} \to K^{+} K^{-} π^{0}$ are measured with a quantum-correlated $ψ (3770) \to D D ˉ$ data sample collec…

hep-ex2024

Study of the decay $D^{0} \to ρ (770)^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

We present a study of the semileptonic decay $D^{0} \to π^{-} π^{0} e^{+} ν_{e}$ using an $e^{+} e^{-}$ annihilation data sample of $7.93 fb^{- 1}$ collected at the center-of-mass…

hep-ex2024★ 6 cited

First determination of the spin-parity of $Ξ_{c} (3055)^{+, 0}$ baryons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1112

The $Ξ_{b}^{0 (-)} \to Ξ_{c} (3055)^{+ (0)} (\to D^{+ (0)} Λ) π^{-}$ decay chains are observed, and the spin-parity of $Ξ_{c} (3055)^{+ (0)}$ baryons is determined for the first time. The m…

hep-ex2024

Search for $η_{c} (2 S) \to ω ω$ and $ω ϕ$ decays and measurements of $χ_{c J} \to ω ω$ and $ω ϕ$ in $ψ (2 S)$ radiative processes

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Using $(2712 \pm 14)$ $\times$ 10 $^{6}$ $ψ (2 S)$ events collected with the BESIII detector at the BEPCII collider, we search for the decays $η_{c} (2 S) \to ω ω$ and $η_{c} (2 S) \to ω ϕ$ via…

hep-ex2024

Study of the rare decay $J / ψ \to μ^{+} μ^{-} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1099

The rare electromagnetic $J / ψ \to μ^{+} μ^{-} μ^{+} μ^{-}$ decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the…

hep-ex2024

Model-independent determination of the strong-phase difference between $D^{0}$ and $D ˉ^{0} \to π^{+} π^{-} π^{+} π^{-}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +652

Measurements of the strong-phase difference between $D^{0}$ and $D ˉ^{0} \to π^{+} π^{-} π^{+} π^{-}$ are performed in bins of phase space. The study exploits a sample of quantum-correlated $D\…

hep-ex2024★ 6 cited

Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton $-$ proton collisions at $s$ = 13 TeV with the ATLAS detector

ATLAS Collaboration

A search for heavy right-handed Majorana neutrinos is performed with the ATLAS detector at the CERN Large Hadron Collider, using the 140 $fb^{- 1}$ of proton-proton collisi…

hep-ex2024★ 4 cited

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at $s =$ 13 TeV with the ATLAS detector

ATLAS Collaboration

Many extensions of the Standard Model, including those with dark matter particles, propose new mediator particles that decay into hadrons. This paper presents a search for such low…

hep-ex2024

Search for $η_{c} (2 S) \to K^{+} K^{-} η^{'}$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII, we find an evidence of the $η_{c} (2 S) \to K^{+} K^{-} η^{'}$ decay…

hep-ex2024★ 20 cited

Strong and weak $C P$ tests in sequential decays of polarized $Σ^{0}$ hyperons

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

The $J / ψ, ψ (3686) \to Σ^{0} Σ ˉ^{0}$ processes and subsequent decays are studied using the world's largest $J / ψ$ and $ψ (3686)$ data samples collected with the BESIII detector. The…

hep-ex2024★ 2 cited

Observation of the Electromagnetic Dalitz Transition $h_{c} \to e^{+} e^{-} η_{c}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +504

Using $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ decays and data samples of $e^{+} e^{-}$ collisions with $s$ from 4.130 to 4.780~GeV collected with the BESIII detector, we report the…

hep-ex2024★ 8 cited

Accuracy versus precision in boosted top tagging with the ATLAS detector

ATLAS Collaboration

The identification of top quark decays where the top quark has a large momentum transverse to the beam axis, known as $t o p$ $t a g g in g$ , is a crucial component in many measurements o…

hep-ex2024★ 6 cited

Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

The ATLAS Collaboration

The inclusive cross-section for the production of a single top quark in association with a $W$ boson is measured using 140 fb $^{- 1}$ of proton-proton collision data collected with…

hep-ex2024★ 11 cited

Observation of $Λ_{c}^{+} \to Λ a_{0} (980)^{+}$ and Evidence for $Σ (1380)^{+}$ in $Λ_{c}^{+} \to Λ π^{+} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +644

Based on $6.1 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at center-of-mass energies from 4.600 to 4.843 GeV with the BESIII detector at the BEPCII collider, a partia…

Search for ηc​(2S)→ppˉ​ and branching fraction measurements of χcJ​→ppˉ​ via ψ(2S) radiative decays

Measurement of the branching fractions of the decays Λc+​→ΛKS0​K+, Λc+​→ΛKS0​π+ and Λc+​→ΛK∗+

Observation of χc0​→Σ+Σˉ−η and evidence for χc1,2​→Σ+Σˉ−η

Observation of the Singly Cabibbo-Suppressed Decay Λc+​→pπ0

Search for e+e−→ϕχc0​ and ϕηc2​(1D) at center-of-mass energies from 4.47 to 4.95 GeV

Observation of χcJ​→ppˉ​KS0​K−π++c.c.

Measurements of ψ(2S) and χc1​(3872) production within fully reconstructed jets

Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector

Test of lepton flavour universality with Bs0​→ϕℓ+ℓ− decays

Observation of a rare beta decay of the charmed baryon with a Graph Neural Network

Measurements of the CP-even fractions of D0→π+π−π0 and D0→K+K−π0 at BESIII

Study of the decay D0→ρ(770)−e+νe​

First determination of the spin-parity of Ξc​(3055)+,0 baryons

Search for ηc​(2S)→ωω and ωϕ decays and measurements of χcJ​→ωω and ωϕ in ψ(2S) radiative processes

Study of the rare decay J/ψ→μ+μ−μ+μ−

Model-independent determination of the strong-phase difference between D0 and Dˉ0→π+π−π+π− decays

Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton−proton collisions at s​ = 13 TeV with the ATLAS detector

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at s​=13 TeV with the ATLAS detector

Search for ηc​(2S)→K+K−η′ decay

Strong and weak CP tests in sequential decays of polarized Σ0 hyperons

Observation of the Electromagnetic Dalitz Transition hc​→e+e−ηc​

Accuracy versus precision in boosted top tagging with the ATLAS detector

Measurement of single top-quark production in association with a W boson in pp collisions at s​=13 TeV with the ATLAS detector

Observation of Λc+​→Λa0​(980)+ and Evidence for Σ(1380)+ in Λc+​→Λπ+η

Search for $η_{c} (2 S) \to p p ˉ$ and branching fraction measurements of $χ_{c J} \to p p ˉ$ via $ψ (2 S)$ radiative decays

Measurement of the branching fractions of the decays $Λ_{c}^{+} \to Λ K_{S}^{0} K^{+}$ , $Λ_{c}^{+} \to Λ K_{S}^{0} π^{+}$ and $Λ_{c}^{+} \to Λ K^{*+}$

Observation of $χ_{c 0} \to Σ^{+} Σ ˉ^{-} η$ and evidence for $χ_{c 1, 2} \to Σ^{+} Σ ˉ^{-} η$

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to p π^{0}$

Search for $e^{+} e^{-} \to ϕ χ_{c 0}$ and $ϕ η_{c 2} (1 D)$ at center-of-mass energies from 4.47 to 4.95 GeV

Observation of $χ_{c J} \to p p ˉ K_{S}^{0} K^{-} π^{+} + c . c .$

Measurements of $ψ (2 S)$ and $χ_{c 1} (3872)$ production within fully reconstructed jets

Test of lepton flavour universality with $B_{s}^{0} \to ϕ ℓ^{+} ℓ^{-}$ decays

Measurements of the $C P$ -even fractions of $D^{0} \to π^{+} π^{-} π^{0}$ and $D^{0} \to K^{+} K^{-} π^{0}$ at BESIII

Study of the decay $D^{0} \to ρ (770)^{-} e^{+} ν_{e}$

First determination of the spin-parity of $Ξ_{c} (3055)^{+, 0}$ baryons

Search for $η_{c} (2 S) \to ω ω$ and $ω ϕ$ decays and measurements of $χ_{c J} \to ω ω$ and $ω ϕ$ in $ψ (2 S)$ radiative processes

Study of the rare decay $J / ψ \to μ^{+} μ^{-} μ^{+} μ^{-}$

Model-independent determination of the strong-phase difference between $D^{0}$ and $D ˉ^{0} \to π^{+} π^{-} π^{+} π^{-}$ decays

Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton $-$ proton collisions at $s$ = 13 TeV with the ATLAS detector

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at $s =$ 13 TeV with the ATLAS detector

Search for $η_{c} (2 S) \to K^{+} K^{-} η^{'}$ decay

Strong and weak $C P$ tests in sequential decays of polarized $Σ^{0}$ hyperons

Observation of the Electromagnetic Dalitz Transition $h_{c} \to e^{+} e^{-} η_{c}$

Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

Observation of $Λ_{c}^{+} \to Λ a_{0} (980)^{+}$ and Evidence for $Σ (1380)^{+}$ in $Λ_{c}^{+} \to Λ π^{+} η$