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EP Preprints

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Senast inlagda poster:
2025-05-21
13:57
Measurements of charmed meson and antimeson production asymmetries at $\sqrt{s} =13.6$ TeV
This article presents doubly differential measurements of the asymmetries in production rates between mesons containing a charm quark and those containing an anticharm quark in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13.6$ TeV using data recorded by the LHCb experiment. [...]
CERN-EP-2025-087 ; LHCB-PAPER-2024-052. - 2025
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Detaljerad journal
2025-05-20
10:17
First measurement of $\,b$-jet mass with and without grooming / LHCb Collaboration
The LHCb collaboration presents a novel suite of heavy-flavour jet substructure measurements at forward rapidity in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 13$ TeV. [...]
arXiv:2505.11955 ; LHCb-PAPER-2025-009 ; CERN-EP-2025-097 ; LHCB-PAPER-2025-009. - 2025 - 28.
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2025-05-15
11:08
Rapidity and multiplicity dependence of charged-particle flow in $p$Pb collisions at $\sqrt{s_{\rm NN}}=8.16$ Tev / LHCb Collaboration
The elliptic and triangular flow of charged particles are measured using two-particle angular correlations in $p$Pb collisions in the pseudorapidity range 2.0 $< |\eta| <$ 4.8. [...]
CERN-EP-2025-090 ; LHCb-PAPER-2025-003 ; arXiv:2505.09273. - 2025
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Detaljerad journal
2025-05-07
16:32
Measurement of the branching fraction ratio $R_K$ at large dilepton invariant mass / LHCb Collaboration
A test of lepton universality between muons and electrons is performed using $B^+ \rightarrow K^+\ell^+\ell^-$ decays (where $\ell = e$, $\mu$), in the dilepton invariant-mass-squared region above 14.3 GeV$^2/c^4$. [...]
arXiv:2505.03483 ; LHCb-PAPER-2024-056 ; CERN-EP-2025-069. - 2025 - 37.
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Detaljerad journal
2025-04-30
10:10
Observation of the decay $B_s^0 \to K_S^0 p \bar{p}$ and measurement of the $B_{(s)}^0 \to K_S^0 p\bar{p}$ branching fraction / LHCb Collaboration
A study of the charmless baryonic decays $B^0_{(s)}\rightarrow K^0 p \bar{p}$ is presented, where $B^0_{(s)}$ denotes either a $B^0$ or a $B^0_s$ meson. [...]
arXiv:2504.21269 ; LHCb-PAPER-2025-001 ; CERN-EP-2025-085. - 2025 - 26.
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Detaljerad journal
2025-04-10
15:16
Angular analysis of the decay $B_s^0 \to \phi e^+e^-$ / LHCb Collaboration
An angular analysis of the decay $B^0_s\to\phi e^+e^-$ 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$\,\mathrm{Te\kern -0.1em V}$. [...]
arXiv:2504.06346 ; LHCb-PAPER-2025-006 ; CERN-EP-2025-064 ; LHCB-PAPER-2025-006. - 2025 - 29.
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Detaljerad journal
2025-04-08
17:10
Observation of the very rare $\Sigma^+ \to p \mu^+ \mu^-$ decay / LHCb Collaboration
The first observation of the $\Sigma^+ \to p \mu^+ \mu^-$ decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of $5.4\,\rm{fb}^{-1}$, collected with the LHCb detector at a centre-of-mass energy of 13~TeV. [...]
arXiv:2504.06096 ; LHCb-PAPER-2025-002 ; CERN-EP-2025-074. - 2025 - 27.
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Detaljerad journal
2025-04-08
13:48
Observation of the doubly-charmed-baryon decay $\Xi_{cc}^{++} \to \Xi_c^0 \pi^+ \pi^+$ / LHCb Collaboration
A search for the doubly-charmed-baryon decay ${\it \Xi}_{cc}^{++}\to{\it \Xi}_{c}^{0}(\to p K^{-}K^{-}\pi^{+})\pi^{+}\pi^{+}$ is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV and corresponding to an integrated luminosity of $5.4 {\,fb}^{-1}$. [...]
arXiv:2504.05063 ; LHCb-PAPER-2024-053 ; CERN-EP-2025-047 ; LHCB-PAPER-2024-053. - 2025 - 23.
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Detaljerad journal
2025-04-02
15:59
Search for the $B^+_c\rightarrow \chi_{c1}(3872)\pi^+$ decay / LHCb Collaboration
A search for the decay $B^+_c\rightarrow \chi_{c1}(3872)\pi^+$ is reported using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8, and 13 $TeV$, corresponding to an integrated luminosity of $9fb^{-1}$. [...]
arXiv:2503.20039 ; CERN-EP-2025-042 ; LHCb-PAPER-2024-050 ; LHCB-PAPER-2024-050. - 2025 - 29.
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Detaljerad journal
2025-03-25
16:29
Observation of charge-parity symmetry breaking in baryon decays / LHCb Collaboration
The Standard Model of particle physics, the theory of particles and interactions at the smallest scale, predicts that matter and antimatter interact differently due to violation of the combined symmetry of charge conjugation ($C$) and parity ($P$). [...]
arXiv:2503.16954 ; LHCb-PAPER-2024-054 ; CERN-EP-2025-031 ; LHCB-PAPER-2024-054. - 2025 - 29.
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