K. Dreimanis

activity

20142025

most citedObservation of five new narrow

Ω_{c}^{0}

states decaying to

Ξ_{c}^{+} K^{-}

304 citations · 1.2k across the 18 of their papers we have counts for

collaborators

19 papers

physics.ins-det2025★ 9 cited

The CMS Barrel Timing Layer: test beam confirmation of module timing performance

F. Addesa, P. Akrap, A. Albert +127

First of its kind, the barrel section of the MIP Timing Detector is a large area timing detector based on LYSO:Ce crystals and SiPMs which are required to operate in an unprecedent…

physics.acc-ph2024

Interim report for the International Muon Collider Collaboration (IMCC)

C. Accettura, S. Adrian, R. Agarwal +383

The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implemen…

hep-ex2021★ 22 cited

Study of coherent $J / ψ$ production in lead-lead collisions at $s_{N N} = 5 T e V$

R. Aaij, C. Abellán Beteta, T. Ackernley +946

Coherent production of $J / ψ$ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHC…

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-ex2018★ 118 cited

Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC

R. Aaij, S. Akar, J. Albrecht +138

The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibra…

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★ 55 cited

Measurement of $Υ$ production in $pp$ collisions at $s$ = 13 TeV

LHCb collaboration, R. Aaij, B. Adeva +782

The production cross-sections of $Υ (1 S)$ , $Υ (2 S)$ and $Υ (3 S)$ mesons in proton-proton collisions at $s$ = 13 TeV are measured with a data sample corresponding to an integrate…

physics.ins-det2018★ 27 cited

Mapping the material in the LHCb vertex locator using secondary hadronic interactions

M. Alexander, W. Barter, A. Bay +63

Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identify…

hep-ex2017★ 42 cited

Search for the lepton-flavour violating decays $B_{(s)}^{0} \to e^{\pm} μ^{\mp}$

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

A search for the lepton-flavour violating decays $B_{s}^{0} \to e^{\pm} μ^{\mp}$ and $B^{0} \to e^{\pm} μ^{\mp}$ is performed based on a sample of proton-proton collision data co…

hep-ex2017★ 59 cited

Updated search for long-lived particles decaying to jet pairs

LHCb collaboration, R. Aaij, B. Adeva +766

A search is presented for long-lived particles with a mass between 25 and 50 GeV/ $c^{2}$ and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an i…

hep-ex2017★ 304 cited

Observation of five new narrow $Ω_{c}^{0}$ states decaying to $Ξ_{c}^{+} K^{-}$

LHCb collaboration, R. Aaij, B. Adeva +772

The $Ξ_{c}^{+} K^{-}$ mass spectrum is studied with a sample of $pp$ collision data corresponding to an integrated luminosity of 3.3 fb $^{- 1}$ , collected by the LHCb experiment. The $Ξ_c…

hep-ex2016★ 7 cited

Measurement of the ratio of branching fractions and difference in $C P$ asymmetries of the decays $B^{+} \to J / ψ π^{+}$ and $B^{+} \to J / ψ K^{+}$

LHCb collaboration, R. Aaij, B. Adeva +764

The ratio of branching fractions and the difference in $C P$ asymmetries of the decays $B^{+} \to J / ψ π^{+}$ and $B^{+} \to J / ψ K^{+}$ are measured using a data sample of $pp$ collisions collec…

hep-ex2016★ 160 cited

Model-independent evidence for $J / ψ p$ contributions to $Λ_{b}^{0} \to J / ψ p K^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +731

The data sample of $Λ_{b}^{0} \to J / ψ p K^{-}$ decays acquired with the LHCb detector from 7 and 8~TeV $pp$ collisions, corresponding to an integrated luminosity of 3 fb $^{- 1}$ , is inspect…

hep-ex2016★ 35 cited

A precise measurement of the $B^{0}$ meson oscillation frequency

LHCb collaboration, R. Aaij, C. Abellán Beteta +730

The oscillation frequency, $Δ m_{d}$ , of $B^{0}$ mesons is measured using semileptonic decays with a $D^{-}$ or $D^{*-}$ meson in the final state, in a data sample of $pp$ collisions coll…

hep-ex2016★ 42 cited

Search for violations of Lorentz invariance and $C P T$ symmetry in $B_{(s)}^{0}$ mixing

LHCb collaboration, R. Aaij, C. Abellán Beteta +729

Violations of $C P T$ symmetry and Lorentz invariance are searched for by studying interference effects in $B^{0}$ mixing and in $B_{s}^{0}$ mixing. Samples of $ B^0\to J/ψK^0_{\mathrm{…

hep-ex2015★ 17 cited

Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb

LHCb collaboration, R. Aaij, B. Adeva +701

A search is performed for heavy long-lived charged particles using 3.0 fb $^{- 1}$ of pp collisions collected at $s$ = 7 and 8 TeV with the LHCb detector. The search is mainly…

hep-ex2015★ 137 cited

Measurement of the forward $Z$ boson production cross-section in $pp$ collisions at $s$ = 7 TeV

LHCb collaboration, R. Aaij, B. Adeva +705

A measurement of the production cross-section for $Z$ bosons that decay to muons is presented. The data were recorded by the LHCb detector during $pp$ collisions at a centre-of-mas…

hep-ex2014★ 22 cited

First measurement of the charge asymmetry in beauty-quark pair production at a hadron collider

R. Aaij, B. Adeva, M. Adinolfi +700

The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in $b b ˉ$ pair production…

hep-ex2014★ 57 cited

Observation of $Z$ production in proton-lead collisions at LHCb

LHCb collaboration, R. Aaij, B. Adeva +702

The first observation of $Z$ boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of $s_{N N} = 5 TeV$ is presented. The data sa…

The CMS Barrel Timing Layer: test beam confirmation of module timing performance

Interim report for the International Muon Collider Collaboration (IMCC)

Study of coherent J/ψ production in lead-lead collisions at sNN​​=5TeV

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

Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC

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

Measurement of Υ production in pp collisions at s​= 13 TeV

Mapping the material in the LHCb vertex locator using secondary hadronic interactions

Search for the lepton-flavour violating decays B(s)0​→e±μ∓

Updated search for long-lived particles decaying to jet pairs

Observation of five new narrow Ωc0​ states decaying to Ξc+​K−

Measurement of the ratio of branching fractions and difference in CP asymmetries of the decays B+→J/ψπ+ and B+→J/ψK+

Model-independent evidence for J/ψp contributions to Λb0​→J/ψpK− decays

A precise measurement of the B0 meson oscillation frequency

Search for violations of Lorentz invariance and CPT symmetry in B(s)0​ mixing