Beihang University

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1,465 papers · 1 filter

hep-ex2026

Measurement of the double Dalitz decay $η \to e^{+} e^{-} e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using a data sample of $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detector, we study the rare double Dalitz decay of $η \to e^{+} e^{-} e^{+} e^{-}$ …

hep-ex2026

Amplitude Analysis of the Isospin-Violating Decay $J / ψ \to γ η π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +759

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we perform the first amplitude analysis of the process $J / ψ \to γ η π^{0}$ . The decay is dominated b…

hep-ex2026

A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for microscopic black holes, string balls, and electroweak sphalerons using proton-proton collisions at $s$ = 13 TeV recorded with the CMS detector at the CERN LHC…

hep-ex2026

Evidence of ZZ $γ$ production and observation of $4 ℓ γ$ in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

Evidence of the production of two Z bosons and a photon in proton-proton collisions is reported for the first time in CMS. The analysis uses data collected by the CMS experiment be…

hep-ex2026

Search for Higgs boson pair production in the $b b ˉ WW$ decay channel with two leptons in the final state using proton-proton collision data at $s$ = 13.6 TeV

CMS Collaboration

A search for Higgs boson pair production is presented, targeting final states where one Higgs boson decays to a pair of bottom quarks and the other Higgs boson decays to two W boso…

hep-ex2026

Observation of $Λ_{c}^{+} \to n π^{+} η$ and search for $Λ_{c}^{+} \to n a_{0} (980)^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +719

By analysing 6.1 $fb^{- 1}$ of data collected at center-of-mass energies between $s = 4.600$ and 4.843 $GeV$ with the BESIII detector at the BEPCII collider, we obser…

hep-ex2026

Search for Higgs boson production at high transverse momentum in the WW decay channel in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for Higgs boson (H) production at high transverse momentum ( $p_{T}$ ) in the WW decay channel is presented. The analysis uses proton-proton collisions at $s$ …

hep-ex2026

Measurement of the jet mass in hadronic decays of boosted W bosons at 13 TeV and extraction of the W boson mass

CMS Collaboration

The jet mass of W bosons decaying to a quark-antiquark pair is measured in W+jets events from proton-proton collisions at a center-of-mass energy of 13 TeV. The data used were coll…

hep-ex2026

Search for a narrow resonance with a mass between 10 and 70 GeV decaying to a pair of photons in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

The existence of a new spin-zero particle with a mass below the electroweak scale is predicted by several theoretical models. Searches for resonant production of photon pairs at th…

hep-ex2026★ 2 cited

Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

A search for $C P$ violation with an entangled system of $Ξ^{-} Ξ ˉ^{+}$ pairs is performed, using $(10, 087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII experiment. A nine…

hep-ex2026

Search for pair production of heavy resonances in final states with a photon and large-radius jets in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for the pair production of heavy spin-1/2 or spin-3/2 resonances (t $^{*}$ ) in proton-proton collisions at $s$ = 13 TeV is presented. Data collected with the CMS detec…

hep-ex2026

Measurement of B meson production fraction ratios in proton-proton collisions at $s$ = 13 TeV using open-charm and charmonium decays

CMS Collaboration

Production fraction ratios of B $^{+}$ , B $^{0}$ , and B $_{s}^{0}$ mesons are measured in proton-proton collisions at $s$ = 13 TeV using a special data set recorded in 2018 wi…

hep-ex2026

Observation of $Λ ˉ p \to K^{+} π^{+} π^{-} π^{0}$ and $Λ ˉ p \to K^{+} π^{+} π^{-} 2 π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at a center-of-mass energy of $s = 3.097$ GeV, the antihyperon-nucleon annihilation processe…

hep-ex2026

Amplitude analysis and branching fraction measurement of $J / ψ \to Λ Σ ˉ^{0} η + c.c$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Based on a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, a partial-wave analysis of $J / ψ \to Λ Σ ˉ^{0} η + c.c$ is performed for th…

hep-ex2026

Cross section measurement of $e^{+} e^{-} \to π^{0} π^{0} ψ (3686)$ from $s =$ 4.008 GeV to 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +682

Using data samples with a total integrated luminosity of $22.1 f b^{- 1}$ at center-of-mass energies between 4.008 and 4.951~GeV collected with the BESIII detector, the cross sec…

hep-ex2026

Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

This analysis presents an observation of the photon-fusion production of W boson pairs using the CMS detector at the LHC. The total cross section of the W $^{+}$ W $^{-}$ production in ph…

hep-ex2026

Measurement of the $Υ$ (1S), $Υ$ (2S), and $Υ$ (3S) differential cross sections in pp collisions at $s$ = 13.6 TeV

CMS Collaboration

The production cross sections of the $Υ$ (1S), $Υ$ (2S), and $Υ$ (3S) mesons are measured in proton-proton collisions at $s$ = 13.6 TeV, using a data sample collected in 2022 b…

hep-ex2026

Search for heavy resonances decaying into two Higgs bosons in the $b b ˉ τ^{+} τ^{-}$ final state in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search is presented for massive narrow-width resonances in the mass range of 1 $-$ 4.5 TeV, decaying into pairs of Higgs bosons (HH). The search uses proton-proton collision data a…

hep-ex2026

Search for the isospin-violating decays $χ_{cJ} \to Λ Σ ˉ^{0} + c . c .$ and $η_{c} \to Λ Σ ˉ^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +701

Using a sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ ~ $ψ (3686)$ events collected with the BESIII detector, we perform a search for the isospin-violating decays $χ_{cJ}\toΛ\barΣ^{0}+c.c.~…

hep-ex2026

Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

Gauge-mediated supersymmetry-breaking models provide a strong motivation to search for a supersymmetric partner of the tau lepton (stau) with a macroscopic lifetime. Long-lived sta…

hep-ex2026

Combination of searches for heavy vector boson resonances in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A combined statistical analysis of searches for heavy vector boson resonances decaying into pairs of W, Z, or Higgs bosons, as well as into quark pairs ( $q q ˉ$ , $\math…

hep-ex2026

Observation of $Ξ (1530)^{0}$ Polarization and Determination of Its Electric and Magnetic Moments in $ψ (3686) \to Ξ (1530)^{0} Ξ ˉ (1530)^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using the data sample of $2.7 \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we present an observation of the $Ξ (1530)^{0}$ polarization in th…

hep-ex2026

Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for dark matter particles produced in association with a Higgs boson decaying to a bottom quark-antiquark pair in proton-proton collisions at $s$ = 13 TeV is presen…

hep-ex2026

Measurement of the Higgs boson total decay width using the H $\to$ WW $\to$ e $ν μν$ decay channel in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

The Higgs boson (H) decay width is determined from the ratio of off- and on-shell production of H $\to$ WW $\to$ e $ν μν$ using proton-proton collision data corresponding to an integ…

Measurement of the double Dalitz decay η→e+e−e+e−

Amplitude Analysis of the Isospin-Violating Decay J/ψ→γηπ0

A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at s​ = 13 TeV

Evidence of ZZγ production and observation of 4ℓγ in proton-proton collisions at s​ = 13 TeV

Search for Higgs boson pair production in the bbˉWW decay channel with two leptons in the final state using proton-proton collision data at s​ = 13.6 TeV

Observation of Λc+​→nπ+η and search for Λc+​→na0​(980)+

Search for Higgs boson production at high transverse momentum in the WW decay channel in proton-proton collisions at s​ = 13 TeV

Measurement of the jet mass in hadronic decays of boosted W bosons at 13 TeV and extraction of the W boson mass

Search for a narrow resonance with a mass between 10 and 70 GeV decaying to a pair of photons in proton-proton collisions at s​ = 13 TeV

Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs

Search for pair production of heavy resonances in final states with a photon and large-radius jets in proton-proton collisions at s​ = 13 TeV

Measurement of B meson production fraction ratios in proton-proton collisions at s​ = 13 TeV using open-charm and charmonium decays

Observation of Λˉp→K+π+π−π0 and Λˉp→K+π+π−2π0

Amplitude analysis and branching fraction measurement of J/ψ→ΛΣˉ0η+c.c

Cross section measurement of e+e−→π0π0ψ(3686) from s​= 4.008 GeV to 4.951 GeV

Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at s​ = 13 TeV

Measurement of the Υ(1S), Υ(2S), and Υ(3S) differential cross sections in pp collisions at s​ = 13.6 TeV

Search for heavy resonances decaying into two Higgs bosons in the bbˉτ+τ− final state in proton-proton collisions at s​ = 13 TeV

Search for the isospin-violating decays χcJ​→ΛΣˉ0+c.c. and ηc​→ΛΣˉ0+c.c.

Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at s​ = 13 TeV

Combination of searches for heavy vector boson resonances in proton-proton collisions at s​ = 13 TeV

Observation of Ξ(1530)0 Polarization and Determination of Its Electric and Magnetic Moments in ψ(3686)→Ξ(1530)0Ξˉ(1530)0

Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at s​ = 13 TeV

Measurement of the Higgs boson total decay width using the H → WW → eνμν decay channel in proton-proton collisions at s​ = 13 TeV

Measurement of the double Dalitz decay $η \to e^{+} e^{-} e^{+} e^{-}$

Amplitude Analysis of the Isospin-Violating Decay $J / ψ \to γ η π^{0}$

A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at $s$ = 13 TeV

Evidence of ZZ $γ$ production and observation of $4 ℓ γ$ in proton-proton collisions at $s$ = 13 TeV

Search for Higgs boson pair production in the $b b ˉ WW$ decay channel with two leptons in the final state using proton-proton collision data at $s$ = 13.6 TeV

Observation of $Λ_{c}^{+} \to n π^{+} η$ and search for $Λ_{c}^{+} \to n a_{0} (980)^{+}$

Search for Higgs boson production at high transverse momentum in the WW decay channel in proton-proton collisions at $s$ = 13 TeV

Search for a narrow resonance with a mass between 10 and 70 GeV decaying to a pair of photons in proton-proton collisions at $s$ = 13 TeV

Search for pair production of heavy resonances in final states with a photon and large-radius jets in proton-proton collisions at $s$ = 13 TeV

Measurement of B meson production fraction ratios in proton-proton collisions at $s$ = 13 TeV using open-charm and charmonium decays

Observation of $Λ ˉ p \to K^{+} π^{+} π^{-} π^{0}$ and $Λ ˉ p \to K^{+} π^{+} π^{-} 2 π^{0}$

Amplitude analysis and branching fraction measurement of $J / ψ \to Λ Σ ˉ^{0} η + c.c$

Cross section measurement of $e^{+} e^{-} \to π^{0} π^{0} ψ (3686)$ from $s =$ 4.008 GeV to 4.951 GeV

Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at $s$ = 13 TeV

Measurement of the $Υ$ (1S), $Υ$ (2S), and $Υ$ (3S) differential cross sections in pp collisions at $s$ = 13.6 TeV

Search for heavy resonances decaying into two Higgs bosons in the $b b ˉ τ^{+} τ^{-}$ final state in proton-proton collisions at $s$ = 13 TeV

Search for the isospin-violating decays $χ_{cJ} \to Λ Σ ˉ^{0} + c . c .$ and $η_{c} \to Λ Σ ˉ^{0} + c . c .$

Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at $s$ = 13 TeV

Combination of searches for heavy vector boson resonances in proton-proton collisions at $s$ = 13 TeV

Observation of $Ξ (1530)^{0}$ Polarization and Determination of Its Electric and Magnetic Moments in $ψ (3686) \to Ξ (1530)^{0} Ξ ˉ (1530)^{0}$

Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at $s$ = 13 TeV

Measurement of the Higgs boson total decay width using the H $\to$ WW $\to$ e $ν μν$ decay channel in proton-proton collisions at $s$ = 13 TeV