B. Stugu

activity

19982022

most citedObservation of a Broad Structure in the

π^{+} π^{-} J / ψ

Mass Spectrum around 4.26 GeV/

c^{2}

744 citations · 3.8k across the 69 of their papers we have counts for

collaborators

69 papers

physics.ins-det2022

Radiation Hard 3D Silicon Pixel Sensors for use in the ATLAS Detector at the HL-LHC

Andreas Løkken Heggelund, Simon Huiberts, Ole Dorholt +11

The High Luminosity LHC (HL-LHC) upgrade requires the planned Inner Tracker (ITk) of the ATLAS detector to tolerate extremely high radiation doses. Specifically, the innermost part…

physics.ins-det2019

Recent Results from Polycrystalline CVD Diamond Detectors

RD42 Collaboration, L. Bäni, A. Alexopoulos +109

Diamond is a material in use at many nuclear and high energy facilities due to its inherent radiation tolerance and ease of use. We have characterized detectors based on chemical v…

physics.ins-det2018★ 4 cited

Beam tests of silicon pixel 3D-sensors developed at SINTEF

Ole Dorholt, Thor-Erik Hansen, Andreas Heggelund +9

For the purpose of withstanding very high radiation doses, silicon pixel sensors with a 3D electrode geometry are being developed. Detectors of this kind are highly interesting for…

physics.ins-det2018★ 568 cited

Production and Integration of the ATLAS Insertable B-Layer

B. Abbott, J. Albert, F. Alberti +373

During the shutdown of the CERN Large Hadron Collider in 2013-2014, an additional pixel layer was installed between the existing Pixel detector of the ATLAS experiment and a new, s…

physics.ins-det2016★ 14 cited

Module production of the one-arm AFP 3D pixel tracker

S. Grinstein, E. Cavallaro, M. Chmeissani +10

The ATLAS Forward Proton (AFP) detector is designed to identify events in which one or two protons emerge intact from the LHC collisions. AFP will consist of a tracking detector, t…

hep-ex2015★ 16 cited

Time-dependent analysis of $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ decays and studies of the $K^{+} π^{-} π^{+}$ system in $B^{+} \to K^{+} π^{-} π^{+} γ$ decays

P. del Amo Sanchez, others

We measure the time-dependent $C P$ asymmetry in the radiative-penguin decay $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ , using a sample of $471$ million $Υ(4S) \to B{\kern 0.18em\overline{\kern…

hep-ex2015★ 34 cited

Collins asymmetries in inclusive charged $K K$ and $K π$ pairs produced in $e^{+} e^{-}$ annihilation

B. Aubert, others

We present measurements of Collins asymmetries in the inclusive process $e^{+} e^{-} \to h_{1} h_{2} X$ , $h_{1} h_{2} = K K, K π, π π$ , at the center-of-mass energy of 10.6 GeV, using a d…

hep-ex2015★ 3 cited

Search for CP violation In B0-B0bar mixing using partial reconstruction of B0bar -> D*+Xl-nubar and kaon tagging

The BABAR Collaboration

We describe in detail a previously published measurement of CP violation induced by B0-anti B0 oscillations, based on an integrated luminosity of 425.7 fb-1 collected by the BABAR…

hep-ex2015★ 55 cited

Search for Long-Lived Particles in $e^{+} e^{-}$ Collisions

J. P. Lees, others

We present a search for a neutral, long-lived particle $L$ that is produced in $e^{+} e^{-}$ collisions and decays at a significant distance from the $e^{+} e^{-}$ interaction point into var…

hep-ex2014★ 19 cited

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

The BABAR Collaboration, J. P. Lees, others

We present a measurement of the asymmetry $A_{C P}$ between same-sign inclusive dilepton samples $ℓ^{+} ℓ^{+}$ and $ℓ^{-} ℓ^{-}$ ( $ℓ = e, μ$ ) from semileptonic B decays in Y(4…

hep-ex2014★ 45 cited

Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector

ATLAS Collaboration

A measurement of the parity-violating decay asymmetry parameter, alpha_b, and the helicity amplitudes for the decay Lambda_b->J/psi(mu mu)+Lambda(p pi) is reported. The analysis is…

hep-ex2014★ 122 cited

Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $s$ =8 TeV with the ATLAS detector

ATLAS Collaboration

A search is presented for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb $^{- 1}$ of pp collisions at $s$ =8 TeV with the ATLA…

hep-ex2014★ 19 cited

Antideuteron production in $Υ (n S)$ decays and in $e^{+} e^{-} \to q q$ at $s \approx 10.58 Ge V$

J. P. Lees

We present measurements of the inclusive production of antideuterons in $e^{+} e^{-}$ annihilation into hadrons at $\approx 10.58 Ge V$ center-of-mass energy and…

hep-ex2013★ 4 cited

Search for the decay $B^{0} \to Λ_{c}^{+} p p p$

The BABAR Collaboration

We report a search for the decay $B^{0} \to Λ_{c}^{+} p p p$ . Using a data sample of $471 \times 1 0^{6} B B$ pairs collect…

hep-ex2012★ 17 cited

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

BaBar Collaboration, J. P. Lees, V. Poireau +359

We report on a search for direct CP asymmetry in the singly Cabibbo-suppressed decay D+- --> K+ K- pi+- using a data sample of 476 fb-1 accumulated with the BaBar detector running…

hep-ex2012★ 48 cited

Search for a Low-Mass Scalar Higgs Boson Decaying to a Tau Pair in Single-Photon Decays of Upsilon(1S)

J. P. Lees, others

We search for a low-mass scalar CP-odd Higgs boson, A0, produced in the radiative decay of the Upsilon resonance and decaying into a tau+tau- pair: Upsilon(1S)->gamma A0. The produ…

hep-ex2012★ 156 cited

Observation of Time Reversal Violation in the B0 Meson System

The BABAR Collaboration, J. P. Lees, V. Poireau +364

Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time reversal violation. The decays of entangled n…

hep-ex2011

Observation and study of the baryonic B-meson decays B to D(*) p pbar (pi) (pi)

The BABAR Collaboration, del Amo Sanchez, others

We present results for B-meson decay modes involving a charm meson, protons, and pions using 455 x 10^6 BBbar pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-ene…

hep-ex2011★ 7 cited

Search for Bbar --> Lambda_c+ X l- nu Decays in Events With a Fully Reconstructed B Meson

The BABAR Collaboration, J. P. Lees

We present a search for semileptonic B decays to the charmed baryon Lambda_c+ based on 420 fb-1 of data collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II…

hep-ex2011★ 4 cited

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

The BABAR Collaboration, J. P. Lees, V. Poireau +384

We report the observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K- with a significance larger than 7 standard deviations based on 471x10^6$ BBbar pairs collected…

hep-ex2011★ 1 cited

A Method to Estimate the Boson Mass and to Optimise Sensitivity to Helicity Correlations of tau+tau- Final States

Peter L. Rosendahl, Thomas Burgess, Bjarne Stugu

In proton-proton collisions at LHC energies, Z and low mass Higgs bosons would be produced with high and predominantly longitudinal boost with respect to the beam axis. This note d…

hep-ex2011★ 17 cited

Search for CP violation using $T$ -odd correlations in $D^{+} \to K^{+} K_{S}^{0} π^{+} π^{-}$ and $D_{s}^{+} \to K^{+} K_{S}^{0} π^{+} π^{-}$ decays

The BABAR Collaboration, J. P. Lees

We search for CP violation in a sample of 20000 Cabibbo-suppressed decays, $D^{+} \to K^{+} K_{S}^{0} π^{+} π^{-}$ , and 30000 Cabibbo-favored decays, $D_{s}^{+} \to K^{+} K_{S}^{0} π^{+} π^{-}$ . We…

hep-ex2011★ 19 cited

Study of radiative bottomonium transitions using converted photons

The BABAR Collaboration, J. P. Lees, V. Poireau +388

We use 111+/-1 million Upsilon(3S) and 89+/-1 million Upsilon(2S) events recorded by the BaBar detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions…

physics.ins-det2011★ 23 cited

Test Beam Results of 3D Silicon Pixel Sensors for the ATLAS upgrade

ATLAS 3D Collaboration, P. Grenier, G. Alimonti +90

Results on beam tests of 3D silicon pixel sensors aimed at the ATLAS Insertable-B-Layer and High Luminosity LHC (HL-LHC)) upgrades are presented. Measurements include charge collec…