Publications (582)
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 pair production…
Measurement of the CP-violating phase in decays and limits on penguin effects
LHCb collaboration, R. Aaij, B. Adeva +697
Time-dependent CP violation is measured in the channel for each resonant final state using data collected with an integrated luminosity of…
Hubble Space Telescope proper motion (HSTPROMO) catalogs of Galactic globular clusters. IV. Kinematic profiles and average masses of blue straggler stars
A. T. Baldwin, L. L. Watkins, R. P. van der Marel +3
We make use of the Hubble Space Telescope proper-motion catalogs derived by Bellini et al. (2014) to produce the first radial velocity-dispersion profiles sigma(R) for blue straggl…
The DUNE Phase II Detectors
DUNE Collaboration, A. Abed Abud, R. Acciarri +1340
The international collaboration designing and constructing the Deep Underground Neutrino Experiment (DUNE) at the Long-Baseline Neutrino Facility (LBNF) has developed a two-phase s…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters - XIV. Multiple stellar populations within M 15 and their radial distribution
D. Nardiello, A. P. Milone, G. Piotto +6
In the context of the Hubble Space Telescope UV Survey of Galactic Globular Clusters (GCs), we derived high-precision, multi-band photometry to investigate the multiple stellar pop…
The end of the white dwarf cooling sequence in M 67
A. Bellini, L. R. Bedin, G. Piotto +21
In this paper, we present for the first time a proper-motion-selected white dwarf (WD) sample of the old Galactic open cluster M 67, down to the bottom of the WD cooling sequence (…
Determination of f_s/f_d for 7 TeV pp collisions and a measurement of the branching fraction of the decay Bd->D-K+
LHCb Collaboration, R. Aaij, B. Adeva +548
The relative abundance of the three decay modes , and produced in 7 TeV collisions at the LHC is determined from data…
Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV
LHCb collaboration, R. Aaij, B. Adeva +700
The B0bar-B0 and Bsbar-Bs production asymmetries, AP(B0) and AP(Bs), are measured by means of a time-dependent analysis of B0 -> J/ÏK*0, B0 -> D- pi+ and Bs -> Ds- pi+ decays, usi…
Deep Underground Neutrino Experiment (DUNE) Near Detector Conceptual Design Report
A. Abed Abud, B. Abi, R. Acciarri +1059
This report describes the conceptual design of the DUNE near detector
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics
B. Abi, R. Acciarri, Mario A. Acero +958
The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventuall…
Discovery of Carbon Radio Recombination Lines in absorption towards Cygnus~A
J. B. R. Oonk, R. J. van Weeren, F. Salgado +100
We present the first detection of carbon radio recombination line absorption along the line of sight to Cygnus A. The observations were carried out with the LOw Frequency ARray in…
Model-independent measurement of mixing parameters in decays
LHCb collaboration, R. Aaij, C. Abellán Beteta +724
The first model-independent measurement of the charm mixing parameters in the decay is reported, using a sample of collision data recorded by the LHCb…
Exploring the origin of the extended main sequence turn off in M37 through the white dwarf cooling sequence
M. Griggio, M. Salaris, D. Nardiello +3
We use new observations from the Canada-France-Hawaii Telescope to study the white dwarf cooling sequence of the open cluster M37, a cluster that displays an extended main sequence…
Observation of excited Lambda_b0 baryons
LHCb collaboration, R. Aaij, C. Abellan Beteta +615
Using pp collision data corresponding to 1.0 fb-1 integrated luminosity collected by the LHCb detector, two narrow states are observed in the Lambda_b0pi+pi- spectrum with masses 5…
Study of the rare and decays into the final state
LHCb collaboration, R. Aaij, B. Adeva +699
A search for the rare decays and is performed in a data set corresponding to an integrated luminosity of 3.0 fb colle…
Measurement of the branching fraction and search for decays at the LHCb experiment
LHCb collaboration, R. Aaij, B. Adeva +650
A search for the rare decays and is performed at the LHCb experiment. The data analysed correspond to an integrated luminosity of 1 fb…
Multiple stellar populations in 47 Tucanae
A. P. Milone, G. Piotto, L. R. Bedin +16
We use Hubble Space Telescope (HST) and ground-based imaging to study the multiple populations of 47 Tuc, combining high-precision photometry with calculations of synthetic spectra…
The double Subgiant Branch of NGC 1851: the role of the CNO abundance
S. Cassisi, M. Salaris, A. Pietrinferni +4
We explore the possibility that the anomalous split in the Subgiant branch of the galactic globular cluster NGC 1851 is due to the presence of two distinct stellar populations with…
The DUNE Far Detector Vertical Drift Technology, Technical Design Report
DUNE Collaboration, A. Abed Abud, B. Abi +1324
DUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of m…
Neutrino Interaction Vertex Reconstruction in DUNE with Pandora Deep Learning
DUNE Collaboration, A. Abed Abud, R. Acciarri +1331
The Pandora Software Development Kit and algorithm libraries perform reconstruction of neutrino interactions in liquid argon time projection chamber detectors. Pandora is the prima…
Search for Majorana neutrinos in decays
LHCb collaboration, R. Aaij, B. Adeva +674
A search for heavy Majorana neutrinos produced in the decay mode is performed using 3 fb of integrated luminosity collected with the LHCb detector in…
First observation of the decay Bc+ to J/psi pi+pi-pi+
LHCb collaboration, R. Aaij, C. Abellan Beteta +592
The decay Bc+ --> J/psi pi+pi-pi+ is observed for the first time, using 0.8 fb-1 of pp collisions at sqrt{s}=7 TeV collected by the LHCb experiment. The ratio of branching fraction…
Measurements of the branching fractions of the decays and
The LHCb collaboration, R. Aaij, C. Abellan Beteta +592
The decay mode $\B^{0}_{s} \to D^{\mp}_{s} K^{\pm} $ allows for one of the theoretically cleanest measurements of the CKM angle through the study of time-dependent $\ensuremat…
Observation of X(3872) production in pp collisions at sqrt(s)= 7 TeV
LHCb Collaboration, R. Aaij, C. Abellan Beteta +585
Using 34.7 pb-1 of data collected with the LHCb detector, the inclusive production of the X(3872) meson in pp collisions at sqrt(s) = 7 TeV is observed for the first time. Candidat…
Hubble Space Telescope Proper Motion (HSTPROMO) Catalogs of Galactic Globular Clusters. I. Sample Selection, Data Reduction and NGC 7078 Results
A. Bellini, J. Anderson, R. P. van der Marel +9
We present the first study of high-precision internal proper motions (PMs) in a large sample of globular clusters, based on Hubble Space Telescope (HST) data obtained over the past…
Reaching the End of the White Dwarf Cooling Sequence in NGC 6791
L. R. Bedin, I. R. King, J. Anderson +4
We present new observations of the white dwarf sequence of the old open cluster NGC 6791. The brighter peak previously observed in the white dwarf luminosity function (WDLF) is now…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters -- XI. The horizontal branch in NGC\,6388 and NGC\,6441
M. Tailo, F. D'Antona, A. P. Milone +12
The Hubble Space Telescope UV Legacy survey of Galactic Globular Clusters (GC) is characterising many different aspects of their multiple stellar populations. The "Grundahl-jump" (…
Angular analysis and differential branching fraction of the decay
LHCb collaboration, R. Aaij, B. Adeva +722
An angular analysis and a measurement of the differential branching fraction of the decay are presented, using data corresponding to an integrated luminosity o…
Measurement of the and effective lifetimes
LHCb collaboration, R. Aaij, B. Adeva +672
The first measurement of the effective lifetime of the meson in the decay is reported using a proton-proton collision dataset, correspondi…
Search for the decay Bs -> D*-+ Ï+-
LHCb collaboration, R. Aaij, C. Abellan Beteta +619
A search for the decay Bs -> D*-+ Ï+- is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expe…
Measurement of the exclusive production cross-section in collisions at 7 TeV and 8 TeV
LHCb collaboration, R. Aaij, B. Adeva +705
A study is presented of central exclusive production of states, where the resonances decay to the final state, using collision data recorded by th…
Measurements of production and mass with the decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +617
Measurements of production and mass are performed with the decay mode using 0.37 fb of data collected in collisions at TeV by…
First observations of the rare decays and
LHCb collaboration, R. Aaij, B. Adeva +697
First observations of the rare decays and are presented using data corresponding to an integrated luminosity of…
LOFAR tied-array imaging and spectroscopy of solar S bursts
D. E. Morosan, P. T. Gallagher, P. Zucca +50
Context. The Sun is an active source of radio emission that is often associated with energetic phenomena ranging from nanoflares to coronal mass ejections (CMEs). At low radio freq…
The HST Large Programme on NGC 6752. I. Serendipitous discovery of a dwarf Galaxy in background
L. R. Bedin, M. Salaris, R. M. Rich +12
As part of a large Hubble Space Telescope investigation aiming at reaching the faintest stars in the Galactic globular cluster NGC 6752, an ACS/WFC field was the subject of deep op…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects
R. Acciarri, M. A. Acero, M. Adamowski +795
This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF
DUNE Collaboration, R. Acciarri, M. A. Acero +796
The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described.
Measurement of resonant and components in decays
LHCb collaboration, R. Aaij, B. Adeva +680
The resonant structure of the decay is studied using data corresponding to 3 fb of integrated luminosity from collisions by the LHC a…
Measurements of prompt charm production cross-sections in collisions at
LHCb collaboration, R. Aaij, C. Abellán Beteta +724
Production cross-sections of prompt charm mesons are measured with the first data from collisions at the LHC at a centre-of-mass energy of . The data sample…
Radial distribution of the multiple stellar populations in omega Centauri
A. Bellini, G. Piotto, L. R. Bedin +5
We present a detailed study of the radial distribution of the multiple populations identified in the Galactic globular cluster omega Cen. We used both space-based images (ACS/WFC a…
Observation of the decay
LHCb collaboration, R. Aaij, B. Adeva +696
Decays of the form () are searched for in proton-proton collision data corresponding…
Quantum numbers of the state and orbital angular momentum in its decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +619
Angular correlations in decays, with , and , are used to measure orbital angular momentum contribution…
The DUNE Far Detector Interim Design Report Volume 1: Physics, Technology and Strategies
DUNE Collaboration, B. Abi, R. Acciarri +1092
The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended a…
The M4 Core Project with HST -- V. Characterizing the PSFs of WFC3/UVIS by Focus
J. Anderson, L. R. Bedin
As part of the astrometric Hubble Space Telescope (HST) large program GO-12911, we conduct an in-depth study to characterize the point spread function (PSF) of the Uv-VISual channe…
A Triple Main Sequence in the Globular Cluster NGC 2808
G. Piotto, L. R. Bedin, J. Anderson +6
Accurate photometry with HST/ACS shows that the main sequence of the globular cluster NGC 2808 splits into three separate branches. The three MS branches may be associated with com…
DUNE Phase II: Scientific Opportunities, Detector Concepts, Technological Solutions
DUNE Collaboration, A. Abed Abud, B. Abi +1366
The international collaboration designing and constructing the Deep Underground Neutrino Experiment (DUNE) at the Long-Baseline Neutrino Facility (LBNF) has developed a two-phase s…
Star Formation History in two fields of the Small Magellanic Cloud Bar
M. Cignoni, A. A. Cole, M. Tosi +5
The Bar is the most productive region of the Small Magellanic Cloud in terms of star formation but also the least studied one. In this paper we investigate the star formation histo…
Search for the lepton-flavour violating decays and
LHCb collaboration, R. Aaij, B. Adeva +650
A search for the lepton-flavour violating decays and is performed with a data sample, corresponding to an integrated luminos…
First observation and measurement of the branching fraction for the decay
LHCb Collaboration, R. Aaij, B. Adeva +697
The first observation of the decay is reported using 3.0 of proton-proton collision data collected by the LHCb experiment. The …
Spectral Energy Distribution of Blue Stragglers in the core of 47 Tucanae
S. Raso, C. Pallanca, F. R. Ferraro +8
We have constructed the Spectral Energy Distributions (SEDs) of a sample of Blue Straggler Stars (BSSs) in the core of the globular cluster 47 Tucanae, taking advantage of the larg…
Measurement of J/psi production in pp collisions at sqrt(s)=2.76 TeV
LHCb collaboration, R. Aaij, C. Abellan Beteta +624
The production of J/psi mesons is studied with the LHCb detector using data from pp collisions at sqrt(s)=2.76 TeV corresponding to an integrated luminosity of 71 nb^-1. The differ…
A Census of Exoplanets in Orbits Beyond 0.5 AU via Space-based Microlensing
David P. Bennett, J. Anderson, J. -P. Beaulieu +16
A space-based gravitational microlensing exoplanet survey will provide a statistical census of exoplanets with masses greater than 0.1 Earth-masses and orbital separations ranging…
Measurement of the CP-violating phase in decays
LHCb collaboration, R. Aaij, B. Adeva +697
The mixing-induced CP-violating phase in and decays is measured using the final state in data, taken from 3\,fb of integra…
Supernova Pointing Capabilities of DUNE
DUNE Collaboration, A. Abed Abud, B. Abi +1360
The determination of the direction of a stellar core collapse via its neutrino emission is crucial for the identification of the progenitor for a multimessenger follow-up. A highly…
Search for CP violation in D+ -> phi pi+ and Ds+ -> Ks pi+ decays
LHCb collaboration, R. Aaij, C. Abellan Beteta +619
A search for CP violation in D+ -> phi pi+ decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb^{-1} at a cen…
Forward production of mesons in collisions at and 8TeV
LHCb collaboration, R. Aaij, B. Adeva +720
The production of mesons in collisions at and is studied with the LHCb detector using data samples corresponding to an integrated luminosity o…
First evidence for the annihilation decay mode
LHCb collaboration, R. Aaij, C. Abellan Beteta +617
Evidence for the hadronic annihilation decay mode is found with greater than significance. The branching fraction and \CP asymmetry are measured to be \…
Search for the rare decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +634
A search for the rare decay is performed using a data sample, corresponding to an integrated luminosity of 0.9 fb, of collisions collected at a centr…
First observation of the decay in the - region of the dimuon mass spectrum
LHCb collaboration, R. Aaij, C. Abellán Beteta +730
A study of the decay is performed using data collected by the LHCb detector in proton-proton collisions at a centre-of-mass energy of 8 T…
A study of CP violation in and decays with final states
LHCb collaboration, R. Aaij, B. Adeva +682
A first study of CP violation in the decay modes and , where labels a or mes…
Observation of Bs -> J/Ïf'2(1525) in J/ÏK+K- final states
LHCb Collaboration, R. Aaij, C. Abellan Beteta +583
The decay Bs -> J/ÏK+ K- is investigated using 0.16/fb of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ÏÏ channel is well known, final states…
Measurement of the effective lifetime
LHCb collaboration, R. Aaij, C. Abellan Beteta +616
A precise determination of the effective lifetime can be used to constrain contributions from physics beyond the Standard Model in the meson sys…
Observation of the decay
LHCb collaboration, R. Aaij, B. Adeva +703
The first observation of the decay is reported. The study is based on a sample of proton-proton collisions corresponding to of integrated lum…
Absolute proper motion of the Galactic open cluster M67
A. Bellini, L. R. Bedin, B. Pichardo +4
We derived the absolute proper motion (PM) of the old, solar-metallicity Galactic open cluster M67 using observations collected with CFHT (1997) and with LBT (2007). About 50 galax…
First evidence for the two-body charmless baryonic decay
LHCb collaboration, R. Aaij, B. Adeva +657
The results of a search for the rare two-body charmless baryonic decays and are reported. The analysis uses a data sample, corresponding t…
Ground-based CCD astrometry with wide field imagers. II. A star catalogue for M67: [email protected] MPG/ESO astrometry, FLAMES@VLT radial velocities
R. K. S. Yadav, L. R. Bedin, G. Piotto +7
The solar-age open cluster M67 (C0847+120, NGC2682) is a touchstone in studies of the old Galactic disk. Despite its outstanding role, the census of cluster membership for M67 at f…
Initial deep LOFAR observations of Epoch of Reionization windows: I. The North Celestial Pole
S. Yatawatta, A. G. de Bruyn, M. A. Brentjens +86
The aim of the LOFAR Epoch of Reionization (EoR) project is to detect the spectral fluctuations of the redshifted HI 21cm signal. This signal is weaker by several orders of magnitu…
The State-of-the-Art HST Astro-Photometric Analysis of the core of Centauri. I. The Catalog
A. Bellini, J. Anderson, L. R. Bedin +4
We have constructed the most-comprehensive catalog of photometry and proper motions ever assembled for a globular cluster (GC). The core of Cen has been imaged over 650 times t…
Single and double qubit gates by manipulating degeneracy
T. Hakioglu, J. Anderson, F. Wellstood
A novel mechanism is proposed for single and double qubit state manipulations in quantum computation with four-fold degenerate energy levels. The principle is based on starting wit…
First observation of the decay
LHCb collaboration, R. Aaij, B. Adeva +713
A search for decays is performed using collision data, corresponding to an integrated luminosity of , collected…
The Hubble Space Telescope Survey of M31 Satellite Galaxies II. The Star Formation Histories of Ultra-Faint Dwarf Galaxies
A. Savino, D. R. Weisz, E. D. Skillman +34
We present the lifetime star formation histories (SFHs) for six ultra-faint dwarf (UFD; , ) satellite galaxies of M31 based on…
The internal proper motion kinematics of NGC346: past formation and future evolution
E. Sabbi, P. Zeidler, R. P. van der Marel +6
We investigate the internal kinematics of the young star-forming region NGC 346 in the Small Magellanic Cloud. We used two epochs of deep F555W and F814W Hubble Space Telescope ACS…
Doping Liquid Argon with Xenon in ProtoDUNE Single-Phase: Effects on Scintillation Light
DUNE Collaboration, A. Abed Abud, B. Abi +1317
Doping of liquid argon TPCs (LArTPCs) with a small concentration of xenon is a technique for light-shifting and facilitates the detection of the liquid argon scintillation light. I…
Differential branching fraction and angular analysis of the decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +617
The angular distribution and differential branching fraction of the decay are studied with a dataset corresponding to …
The multiplicity of the subgiant branch of Omega Centauri: Evidence for prolonged star formation
S. Villanova, G. Piotto, I. R. King +9
We present metallicity measurements based on GIRAFFE@VLT spectra of 80 subgiant-branch stars of the Galactic globular cluster Omega Centauri. The VLT spectroscopic data are complem…
Measurement of the inelastic cross-section at a centre-of-mass energy of TeV
LHCb collaboration, R. Aaij, B. Adeva +699
The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum GeV/ in the pseudorapidity…
Probing the Magnetic Fields of Nearby Spiral Galaxies at Low Frequencies with LOFAR
D. D. Mulcahy, R. Drzazga, B. Adebahr +12
While the Low Frequency Array (LOFAR) is still in its commissioning phase, early science results are starting to emerge. Two nearby galaxies, M51 and NGC4631, have been observed as…
Measurement of the mass and of the relative rate of and production
LHCb collaboration, R. Aaij, B. Adeva +696
The production of mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of and TeV an…
Absolute luminosity measurements with the LHCb detector at the LHC
The LHCb Collaboration, R. Aaij, B. Adeva +571
Absolute luminosity measurements are of general interest for colliding-beam experiments at storage rings. These measurements are necessary to determine the absolute cross-sections…
The Large Programme on NGC6752 -- V. Differences in Luminosity and Mass Functions among Multiple Stellar Populations
M. Scalco, R. Gerasimov, L. R. Bedin +8
We exploit the astro-photometric dataset of the multi-epoch infrared parallel field of a Large Programme aimed at studying the faintest stars of t…
Lunar occultation of the diffuse radio sky: LOFAR measurements between 35 and 80 MHz
H. K. Vedantham, L. V. E. Koopmans, A. G. de Bruyn +91
We present radio observations of the Moon between and MHz to demonstrate a novel technique of interferometrically measuring large-scale diffuse emission extending far bey…
SN 2018gjx reveals that some SNe Ibn are SNe IIb exploding in dense circumstellar material
S. J. Prentice, K. Maguire, I. Boian +27
We present the data and analysis of SN 2018gjx, an unusual low-luminosity transient with three distinct spectroscopic phases. Phase I shows a hot blue spectrum with signatures of i…
A Precise Proper Motion for the Crab Pulsar, and the Difficulty of Testing Spin-Kick Alignment for Young Neutron Stars
D. L. Kaplan, S. Chatterjee, B. M. Gaensler +1
We present a detailed measurement of the proper motion of the Crab pulsar, with the primary goal of comparing the direction of its proper motion with the projected axis of its puls…
First observation of the decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +632
The decay is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 , collected by the LHCb experiment in…
The Single-Phase ProtoDUNE Technical Design Report
B. Abi, R. Acciarri, M. A. Acero +824
ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that is under construction and will be operated at the CERN Neutrino Platform (NP) starting in 2018. ProtoDUNE-SP, a cr…
Measurement of the forward boson production cross-section in collisions at = 7 TeV
LHCb collaboration, R. Aaij, B. Adeva +705
A measurement of the production cross-section for bosons that decay to muons is presented. The data were recorded by the LHCb detector during collisions at a centre-of-mas…
Discovery of near-ultraviolet counterparts to millisecond pulsars in the globular cluster 47 Tucanae
L. E. Rivera-Sandoval, M. van den Berg, C. O. Heinke +11
We report the discovery of the likely white dwarf companions to radio millisecond pulsars 47 Tuc Q and 47 Tuc S in the globular cluster 47 Tucanae. These blue stars were found in n…
Precision measurement of violation in decays
R. Aaij, B. Adeva, M. Adinolfi +696
The time-dependent asymmetry in decays is measured using collision data, corresponding to an integrated luminosity of fb, collected wit…
Mean age gradient and asymmetry in the star formation history of the Small Magellanic Cloud
M. Cignoni, A. A. Cole, M. Tosi +5
We derive the star formation history in four regions of the Small Magellanic Cloud (SMC) using the deepest VI color-magnitude diagrams (CMDs) ever obtained for this galaxy. The ima…
Measurement of D0-D0bar mixing parameters and search for CP violation using D0->K+pi- decays
LHCb collaboration, R. Aaij, B. Adeva +657
Measurements of charm mixing parameters from the decay-time-dependent ratio of D0->K+pi- to D0->K-pi+ rates and the charge-conjugate ratio are reported. The analysis uses data, cor…
Study of beauty hadron decays into pairs of charm hadrons
LHCb collaboration, R. Aaij, A. Abba +694
First observations of the decays are reported using data corresponding to an integrated luminosity of collected at 7 and 8 TeV cent…
The ACS Survey of Galactic Globular Clusters XIV: Bayesian Single-Population Analysis of 69 Globular Clusters
R. Wagner-Kaiser, A. Sarajedini, T. von Hippel +7
We use Hubble Space Telescope (HST) imaging from the ACS Treasury Survey to determine fits for single population isochrones of 69 Galactic globular clusters. Using robust Bayesian…
Measurement of the fraction of \Y1S originating from \chib1P decays in collisions at $\sqrt{s} = 7\tev$
LHCb collaboration, R. Aaij, C. Abellan Beteta +616
The production of \chib1P mesons in collisions at a centre-of-mass energy of $7\tev$ is studied using $32\invpb$ of data collected with the \lhcb detector. The $\chib1P$ meson…
Measurement of the CP-violating phase phi_s in the decay Bs->J/psi phi
LHCb Collaboration, R. Aaij, C. Abellan Beteta +585
We present a measurement of the time-dependent CP-violating asymmetry in B_s -> J/psi phi decays, using data collected with the LHCb detector at the LHC. The decay time distributio…
Differential branching fraction and angular analysis of the decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +636
The determination of the differential branching fraction and the first angular analysis of the decay are presented using data, corresponding to an integrat…
The effect of unresolved binaries on globular cluster proper-motion dispersion profiles
P. Bianchini, M. A. Norris, G. van de Ven +5
High-precision kinematic studies of globular clusters require an accurate knowledge of all possible sources of contamination. Amongst other sources, binary stars can introduce syst…
LOFAR Sparse Image Reconstruction
H. Garsden, J. N. Girard, J. L. Starck +77
Context. The LOw Frequency ARray (LOFAR) radio telescope is a giant digital phased array interferometer with multiple antennas distributed in Europe. It provides discrete sets of F…
Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
LHCb Collaboration, R. Aaij, C. Abellan Beteta +590
A search for the decays Bs -> mu+ mu- and B0 -> mu+ mu- is performed with 0.37 fb^-1 of pp collisions at sqrt{s} = 7 TeV collected by the LHCb experiment in 2011. The upper limits…
A double cluster at the core of 30 Doradus
E. Sabbi, D. J. Lennon, M. Gieles +6
Based on an analysis of data obtained with the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) we report the identification of two distinct stellar populations in th…
First observation of a baryonic decay
LHCb collaboration, R. Aaij, B. Adeva +699
A baryonic decay of the meson, , is observed for the first time, with a significance of standard deviations, in collision data co…