Search Results - "Höistad, B."
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Physics with the KLOE-2 experiment at the upgraded DAΦNE
Published in The European physical journal. C, Particles and fields (01-08-2010)“…Investigation at a φ -factory can shed light on several debated issues in particle physics. We discuss: (i) recent theoretical development and experimental…”
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Exclusive measurement of the pp → nnπ+π+ reaction at 1.1 GeV
Published in The European physical journal. A, Hadrons and nuclei (01-09-2011)“…First exclusive data for the reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of T p = 1.1 GeV. Total and differential…”
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3
Measurement of the η→π+π−e+e− decay branching ratio
Published in Physics letters. B (25-01-2007)“…The reaction pd→He3η at threshold was used to provide a clean source of η mesons for decay studies with the WASA detector at CELSIUS. The branching ratio of…”
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Single- and double-pion production in nucleon collisions on the nucleon and on nuclei—the ABC effect and its origin in a dibaryonic resonance
Published in Progress in particle and nuclear physics (01-07-2008)“…The ABC effect–an intriguing low-mass enhancement in the π π invariant mass spectrum–is known from inclusive measurements of two-pion production in nuclear…”
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Spectator tagging in quasi-free proton–neutron interactions in deuterium using an internal cluster-jet target at a storage ring
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (2001)“…Low-energy spectator protons (p s) from quasi-free proton–neutron interactions on deuterium have been measured for the pd→dπ 0p s and pd→pnπ 0p s reactions at…”
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Search for narrow NNπ resonances in exclusive pp→ppπ+π− measurements
Published in Physics letters. B (19-12-2002)“…Narrow structures in the range of a few MeV have been searched for in ppπ+ and ppπ− invariant mass spectra (Mppπ+ and Mppπ−) obtained from exclusive…”
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Observation of deeply bound pionic states of xenon produced in Xe nat ( d , 3 He ) Xe π − bound reactions
Published in Physical review. C, Nuclear physics (01-08-2002)Get full text
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Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance?
Published in Physical review letters (17-06-2011)“…We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over the full energy…”
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Upper limits for a narrow dibaryon in pp collisions at 200 and 310 MeV
Published in Physics letters. B (21-05-1998)“…Dibaryons, forbidden by mass to decay into NN π channel and by quantum numbers into NN channel, may still have escaped detection. In fact, recently an…”
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Detector setup for a storage ring with an internal target
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-09-1996)“…A detector setup for the cooler storage ring CELSIUS is described. The setup detects particles produced in interactions between the internal beam and a…”
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Observation of strong final-state effects in π+ production in pp collisions at 400 MeV
Published in Physics letters. B (1999)“…Differential cross sections of the reactions pp→ dπ + and pp→ pnπ + have been measured at T p =400 MeV by detecting the charged ejectiles in the angular range…”
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12
η -meson production in proton-proton collisions at excess energies of 40 and 72 MeV
Published in Physical review. C, Nuclear physics (30-11-2010)“…The production of eta mesons in proton-proton collisions has been studied using the WASA detector at the CELSIUS storage ring at excess energies of Q = 40 MeV…”
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Double-pionic fusion of nuclear systems and the "ABC" effect: approaching a puzzle by exclusive and kinematically complete measurements
Published in Physical review letters (06-02-2009)“…The ABC effect-a puzzling low-mass enhancement in the pipi invariant mass spectrum, first observed by Abashian, Booth, and Crowe-is well known from inclusive…”
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14
Kinematically Complete Measurement of the pd → pdη Reaction
Published in Physica scripta (01-01-2003)Get full text
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First Results of the CELSIUS/WASA Experiment
Published in Physica scripta (01-01-2003)Get full text
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Report on the Charged Decay Products Identification Possibilities in WASA
Published in Physica scripta (01-01-2003)Get full text
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Recent results from the CELSIUS/WASA collaboration on meson production in proton-hydrogen collisions
Published in Nuclear physics. A (26-07-1999)“…Different π and η meson production channels in proton-proton and proton-deuteron collisions have been studied at the CELSIUS storage ring using an internal…”
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Two-pion production in proton–proton collisions — experimental total cross sections and their isospin decomposition
Published in Physics letters. B (10-08-2009)“…The two-pion production in pp-collisions has been investigated at CELSIUS in exclusive measurements from threshold up to Tp=1.36 GeV. Total and differential…”
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Two-pion production in proton–proton collisions near threshold
Published in Nuclear physics. A (16-12-2002)“…Two-pion production reactions in proton–proton collisions have been studied using the PROMICE/ WASA detector and an internal cluster gas-jet target at the…”
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Charge symmetry breaking in dd→He4π0 with WASA-at-COSY
Published in Physics letters. B (12-12-2014)“…Charge symmetry breaking (CSB) observables are a suitable experimental tool to examine effects induced by quark masses on the nuclear level. Previous high…”
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