G. Kemmerling
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View article: Search for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>η</mml:mi></mml:math> mesic <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts></mml:math> in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mi>d</mml:mi><mml:mo>→</mml:mo><mml:mi>d</mml:mi><mml:mi>p</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:mrow></mml:math> reaction with the WASA-at-COSY facility
Search for the mesic in the reaction with the WASA-at-COSY facility Open
The excitation function for the $pd\\rightarrow$ $d p \\pi^{0}$ reaction has\nbeen measured by WASA-at-COSY experiment with the aim of searching for\n$^{3}\\hspace{-0.03cm}\\mbox{He}$-$\\eta$ mesic nuclei. The measurement in the\nvicinity …
View article: Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams
Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams Open
The response of a position-sensitive Li-glass based scintillation detector to\nfocused beams of 2.5 MeV protons and deuterons has been investigated. The beams\nwere scanned across the detector in 0.5 mm horizontal and vertical steps\nperpe…
View article: Differential cross sections for neutron-proton scattering in the region of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mrow><mml:mo>(</mml:mo><mml:mn>2380</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> dibaryon resonance
Differential cross sections for neutron-proton scattering in the region of the dibaryon resonance Open
Differential cross sections have been extracted from exclusive and\nkinematically complete high-statistics measurements of quasifree polarized\n$\\vec{n}p$ scattering performed in the energy region of the $d^*(2380)$\ndibaryon resonance co…
View article: Corrigendum to “Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances” [Phys. Lett. B 774 (2017) 599]
Corrigendum to “Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances” [Phys. Lett. B 774 (2017) 599] Open
View article: Three-nucleon dynamics in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi mathvariant="italic">dp</mml:mi></mml:math> breakup collisions using the WASA detector at COSY-Jülich
Three-nucleon dynamics in breakup collisions using the WASA detector at COSY-Jülich Open
Differential cross section for the 1H(d,pp)n breakup reaction at deuteron beam energy of 340 MeV has been measured with the use of WASA detector at COSY-Juelich. The set of proton-proton coincidences registered at Forward Detector has been…
View article: Search for η mesic 3He with the WASA-at-COSY facility in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mi>p</mml:mi><mml:mi>d</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup><mml:mtext>He</mml:mtext><mml:mn>2</mml:mn><mml:mi>γ</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.svg"><mml:mi>p</mml:mi><mml:mi>d</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup><mml:mtext>He</mml:mtext><mml:mn>6</mml:mn><mml:mi>γ</mml:mi></mml:math> reactions
Search for η mesic 3He with the WASA-at-COSY facility in the and reactions Open
View article: Examination of the production of an isotensor dibaryon in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:mrow></mml:math> reaction
Examination of the production of an isotensor dibaryon in the reaction Open
The quasifree pp -> pp pi(+)pi(-) reaction has been measured by means of pd collisions at T-p = 1.2 GeV using the WASA detector setup at COSY enabling exclusive and kinematically complete measurements. Total and differential cross sections…
View article: Isotensor Dibaryon in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math> Reaction?
Isotensor Dibaryon in the Reaction? Open
Exclusive measurements of the quasifree pp→ppπ^{+}π^{-} reaction have been carried out at WASA@COSY by means of pd collisions at T_{p}=1.2 GeV. Total and differential cross sections have been extracted covering the energy region T_{p}=1.08…
View article: Search for C violation in the decay η → π0e+e− with WASA-at-COSY
Search for C violation in the decay η → π0e+e− with WASA-at-COSY Open
View article: Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Q = 13 MeV and Q = 81 MeV
Total and differential cross sections of η-production in proton–deuteron fusion for excess energies between Q = 13 MeV and Q = 81 MeV Open
View article: Importance of d-wave contributions in the charge symmetry breaking reaction <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>d</mml:mi><mml:mi>d</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow/><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup><mml:mtext>He</mml:mtext><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:math>
Importance of d-wave contributions in the charge symmetry breaking reaction Open
View article: Spin Dependence of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>η</mml:mi></mml:math> Meson Production in Proton-Proton Collisions Close to Threshold
Spin Dependence of Meson Production in Proton-Proton Collisions Close to Threshold Open
Taking advantage of the high acceptance and axial symmetry of the WASA-at-COSY detector, and the high polarization degree of the proton beam of COSY, the reaction p[over →]p→ppη has been measured close to threshold to explore the analyzing…
View article: Backward single-pion production in the $ pd\\rightarrow {}^{3}\\mathrm{He} \\pi^{0}$pd→ 3 He π 0 reaction with WASA-at-COSY
Backward single-pion production in the $ pd\\rightarrow {}^{3}\\mathrm{He} \\pi^{0}$pd→ 3 He π 0 reaction with WASA-at-COSY Open
View article: Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances
Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances Open
View article: Measurement of the ω→π+π−π0 Dalitz plot distribution
Measurement of the ω→π+π−π0 Dalitz plot distribution Open
Using the production reactions pd -> He-3 omega and pp -> pp omega, the Dalitz plot distribution for the omega -> pi(+)pi(-)pi(0)decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408 +/- 0.042)…
Search for η-mesic in the and reactions with the WASA-at-COSY facility Open
View article: Measurements of branching ratios for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>η</mml:mi></mml:math> decays into charged particles
Measurements of branching ratios for decays into charged particles Open
The WASA-at-COSY experiment has collected 3 x 10(7) events with eta mesons produced via the reaction pd -> He-3 eta at T = 1.0 GeV. Using this data set, we evaluate the branching ratios of the decays eta -> pi(+)pi(-)gamma, eta -> e(+)e(-)…
View article: Search for an isospin I= 3 dibaryon
Search for an isospin I= 3 dibaryon Open
View article: Measurement of the np→npπ0π0 reaction in search for the recently observed d⁎(2380) resonance
Measurement of the np→npπ0π0 reaction in search for the recently observed d⁎(2380) resonance Open
View article: ABC effect and resonance structure in the double-pionic fusion to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">He</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>
ABC effect and resonance structure in the double-pionic fusion to Open
Exclusive and kinematically complete measurements of the double pionic fusion to He-3 have been performed in the energy region of the so-called ABC effect, which denotes a pronounced low-mass enhancement in the pi pi-invariant mass spectru…