T. Mombächer

activity

20142024

most citedFirst observation of the doubly charmed baryon decay

Ξ_{cc}^{++} \to Ξ_{c}^{+} π^{+}

168 citations · 1.2k across the 34 of their papers we have counts for

collaborators

34 papers

physics.ins-det2024★ 1 cited

Technical design report for the CODEX- $β$ demonstrator

b collaboration, Giulio Aielli, Juliette Alimena +56

The CODEX- $β$ apparatus is a demonstrator for the proposed future CODEX-b experiment, a long-lived-particle detector foreseen for operation at IP8 during HL-LHC data-taking. The de…

hep-ex2024★ 3 cited

Analysis of $B_{(s)}^{0} \to μ^{+} μ^{-}$ decays at the LHC

Kai-Feng Chen, Titus Mombächer, Umberto de Sanctis

This article reviews the most recent measurements of $B_{(s)}^{0} \to μ^{+} μ^{-}$ decay properties at the LHC, which are the most precise to date. The measurements of the branching fractio…

hep-ph2022

Following the muon track of hierarchical sectors at LHCb

Xabier Cid Vidal, Titus Mombächer, Maria Ramos +1

This paper reports a study of the experimental signatures of hierarchical sectors beyond the Standard Model characterized by a flavor-violating heavy vector and a set of light pseu…

hep-ph2021★ 14 cited

Prospects on searches for baryonic Dark Matter produced in $b$ -hadron decays at LHCb

Alexandre Brea Rodríguez, Veronika Chobanova, Xabier Cid Vidal +6

A model that can simultaneously explain Dark Matter relic density and the apparent matter anti-matter imbalance of the universe has been recently proposed. The model requires $b$ -h…

hep-ex2019★ 15 cited

Amplitude analysis of the $B_{(s)} \to K^{* 0} K^{* 0}$ decays and measurement of the branching fraction of the $B \to K^{* 0} K^{* 0}$ decay

LHCb Collaboration, R. Aaij, C. Abellán Beteta +844

The $B^{0} \to K^{* 0} K^{* 0}$ and $B_{s}^{0} \to K^{* 0} K^{* 0}$ decays are studied using proton-proton collision data corresponding to an integrated luminosity of 3…

hep-ex2019★ 6 cited

Measurement of the ratio of branching fractions of the decays $Λ_{b}^{0} \to ψ (2 S) Λ$ and $Λ_{b}^{0} \to J / ψ Λ$

LHCb Collaboration, R. Aaij, B. Adeva +799

Using $pp$ collisions corresponding to 3 $fb^{- 1}$ integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 $TeV$ , the ratio of…

hep-ex2019★ 68 cited

Measurement of the mass difference between neutral charm-meson eigenstates

LHCb Collaboration, R. Aaij, C. Abellán Beteta +842

We report a measurement of the mass difference between neutral charm-meson eigenstates using a novel approach that enhances sensitivity to this parameter. We use $2.3 \times 1 0^{6}$ $…

hep-ex2019★ 36 cited

Model-independent observation of exotic contributions to $B^{0} \to J / ψ K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +841

An angular analysis of $B^{0} \to J / ψ K^{+} π^{-}$ decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3~ $fb^{- 1}$ collected with the…

hep-ex2018★ 9 cited

Measurement of the branching fraction and $C P$ asymmetry in $B^{+} \to J / ψ ρ^{+}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +844

The branching fraction and direct $C P$ asymmetry of the decay $B^{+} \to J / ψ ρ^{+}$ are measured using proton-proton collision data collected with the LHCb detector at cent…

hep-ex2018★ 8 cited

Study of the $B^{0} \to ρ (770)^{0} K^{*} (892)^{0}$ decay with an amplitude analysis of $B^{0} \to (π^{+} π^{-}) (K^{+} π^{-})$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +840

An amplitude analysis of $B^{0} \to (π^{+} π^{-}) (K^{+} π^{-})$ decays is performed in the two-body invariant mass regions $300 < m (π^{+} π^{-}) < 1100$ MeV/ $c^{2}$ , accounting for the $ρ^{0}$ , $ω$ ,…

hep-ex2018★ 22 cited

Measurement of the charm-mixing parameter $y_{C P}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +841

A measurement of the charm-mixing parameter $y_{C P}$ using $D^{0} \to K^{+} K^{-}$ , $D^{0} \to π^{+} π^{-}$ , and $D^{0} \to K^{-} π^{+}$ decays is reported. The $D^{0}$ mesons are required to originat…

hep-ex2018★ 64 cited

Evidence for an $η_{c} (1 S) π^{-}$ resonance in $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +842

A Dalitz plot analysis of $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays is performed using data samples of $pp$ collisions collected with the LHCb detector at centre-of-mass energies of $\sqrt{s…

hep-ex2018

Measurement of the $Ω_{c}^{0}$ baryon lifetime

LHCb collaboration, R. Aaij, B. Adeva +834

We report a measurement of the lifetime of the $Ω_{c}^{0}$ baryon using proton-proton collision data at center-of-mass energies of 7 and 8~TeV, corresponding to an integrated luminosit…

hep-ex2018★ 69 cited

Measurement of antiproton production in $pHe$ collisions at $s_{N N} = 110$ GeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +839

The cross-section for prompt antiproton production in collisions of protons with an energy of $6.5$ TeV incident on helium nuclei at rest is measured with the LHCb experiment from…

hep-ex2018★ 114 cited

Measurement of the lifetime of the doubly charmed baryon $Ξ_{cc}^{++}$

LHCb collaboration, R. Aaij, B. Adeva +832

The first measurement of the lifetime of the doubly charmed baryon $Ξ_{cc}^{++}$ is presented, with the signal reconstructed in the final state $Λ_{c}^{+} K^{-} π^{+} π^{+}$ . The data sample…

hep-ex2018★ 168 cited

First observation of the doubly charmed baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{+} π^{+}$

LHCb collaboration, R. Aaij, B. Adeva +834

The doubly charmed baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{+} π^{+}$ is observed for the first time, with a statistical significance of $5.9 σ$ , confirming a recent observation…

hep-ex2018★ 26 cited

Measurement of angular and CP asymmetries in $D^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ and $D^{0} \to K^{+} K^{-} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +832

The first measurements of the forward-backward asymmetry of the dimuon pair ( $A_{F B}$ ), the triple-product asymmetry ( $A_{2 ϕ}$ ), and the charge-parity-conjugation asymmetry ($A_{CP…

hep-ex2018★ 3 cited

Observation of the decay $B_{s}^{0} \to χ_{c 2} K^{+} K^{-}$ in the $φ$ mass region

LHCb collaboration, R. Aaij, B. Adeva +828

The $B_{s}^{0} \to χ_{c 2} K^{+} K^{-}$ decay mode is observed and its branching fraction relative to the corresponding $χ_{c 1}$ decay mode, in a $\pm 15 \textrm{MeV}/c^…

hep-ex2018★ 62 cited

Search for beautiful tetraquarks in the $Υ (1 S) μμ$ invariant-mass spectrum

LHCb collaboration, R. Aaij, B. Adeva +836

The $Υ (1 S) μ^{+} μ^{-}$ invariant-mass distribution is investigated for a possible exotic meson state composed of two $b$ quarks and two $b$ quarks, $X_{b\overline{b}b\overlin…

hep-ex2018★ 82 cited

Central exclusive production of $J / ψ$ and $ψ (2 S)$ mesons in $pp$ collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, B. Adeva +808

Measurements are reported of the central exclusive production of \jpsi and \psitwos mesons in $pp$ collisions at a centre-of-mass energy of 13 TeV. Backgrounds are significantly re…

hep-ex2018★ 12 cited

Measurement of $D_{s}^{\pm}$ production asymmetry in $pp$ collisions at $s = 7$ and 8 TeV

R. Aaij, B. Adeva, M. Adinolfi +786

The inclusive $D_{s}^{\pm}$ production asymmetry is measured in $pp$ collisions collected by the LHCb experiment at centre-of-mass energies of $s = 7$ and 8 TeV. Promptly produ…

hep-ex2018★ 29 cited

Search for CP violation using triple product asymmetries in $Λ_{b}^{0} \to p K^{-} π^{+} π^{-}$ , $Λ_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $Ξ_{b}^{0} \to p K^{-} K^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +791

A search for $C$ P and $P$ violation using triple-product asymmetries is performed with $Λ_{b}^{0} \to p K^{-} π^{+} π^{-}$ , $Λ_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $Ξ^{0}_{b}\to pK^{-}K^{-…

hep-ex2018★ 32 cited

Evidence for the decay $B_{s}^{0} \to K^{* 0} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +788

A search for the decay $B_{s}^{0} \to K^{* 0} μ^{+} μ^{-}$ is presented using data sets corresponding to 1.0, 2.0 and 1.6 $fb^{- 1}$ of integrated luminosity coll…

hep-ex2018★ 14 cited

A search for weakly decaying b-flavored pentaquarks

LHCb collaboration, R. Aaij, B. Adeva +790

Investigations of the existence of pentaquark states containing a single $b$ (anti)quark decaying weakly into four specific final states J/ $ψ K^{+} π^{-} p$ , J/ $ψ K^{-} π^{-} p$ , J/$ψK^- π^+…

Technical design report for the CODEX-β demonstrator

Analysis of B(s)0​→μ+μ− decays at the LHC

Following the muon track of hierarchical sectors at LHCb

Prospects on searches for baryonic Dark Matter produced in b-hadron decays at LHCb

Amplitude analysis of the B(s)​→K∗0K∗0 decays and measurement of the branching fraction of the B→K∗0K∗0 decay

Measurement of the ratio of branching fractions of the decays Λb0​→ψ(2S)Λ and Λb0​→J/ψΛ

Measurement of the mass difference between neutral charm-meson eigenstates

Model-independent observation of exotic contributions to B0→J/ψK+π− decays

Measurement of the branching fraction and CP asymmetry in B+→J/ψρ+ decays

Study of the B0→ρ(770)0K∗(892)0 decay with an amplitude analysis of B0→(π+π−)(K+π−) decays

Measurement of the charm-mixing parameter yCP​

Evidence for an ηc​(1S)π− resonance in B0→ηc​(1S)K+π− decays

Measurement of the Ωc0​ baryon lifetime

Measurement of antiproton production in pHe collisions at sNN​​=110 GeV

Measurement of the lifetime of the doubly charmed baryon Ξcc++​

First observation of the doubly charmed baryon decay Ξcc++​→Ξc+​π+

Measurement of angular and CP asymmetries in D0→π+π−μ+μ− and D0→K+K−μ+μ− decays

Observation of the decay Bs0​​→χc2​K+K− in the φ mass region

Search for beautiful tetraquarks in the Υ(1S)μμ invariant-mass spectrum

Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at s​=13 TeV

Measurement of Ds±​ production asymmetry in pp collisions at s​=7 and 8 TeV

Search for CP violation using triple product asymmetries in Λb0​→pK−π+π−, Λb0​→pK−K+K− and Ξb0​→pK−K−π+ decays

Evidence for the decay Bs0​→K∗0μ+μ−