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- Publications
- Influence
Measurements of branching ratios for η decays into charged particles
- P. Adlarson, W. Augustyniak, +96 authors M. Żurek
- Physics
- 22 September 2015
The WASA-at-COSY experiment has collected 3×107 events with η mesons produced via the reaction pd→He3η at T=1.0GeV. Using this data set, we evaluate the branching ratios of the decays η→π+π-γ,… Expand
Evidence for a New Resonance from Polarized Neutron-Proton Scattering
- P. Adlarson, W. Augustyniak, +104 authors I. I. Strakovsky
- Physics
- 27 February 2014
Exclusive and kinematically complete high-statistics measurements of quasifree polarized (n) over right arrowp scattering have been performed in the energy region of the narrow resonancelike struct… Expand
Phase Locking the Spin Precession in a Storage Ring.
- N. Hempelmann, V. Hejny, +66 authors M. Żurek
- Physics, Medicine
- Physical review letters
- 22 March 2017
This Letter reports the successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97 GeV/c bunched and polarized deuteron beam in the Cooler Synchrotron… Expand
Spin Dependence of η Meson Production in Proton-Proton Collisions Close to Threshold.
- P. Adlarson, W. Augustyniak, +89 authors M. Żurek
- Physics, Medicine
- Physical review letters
- 13 September 2017
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… Expand
Total and differential cross sections of η-production in proton-deuteron fusion for excess energies between Qη = 13 MeV and Qη = 81 MeV
- P. Adlarson, W. Augustyniak, +90 authors C. Wilkin
- Physics
- 20 January 2018
Abstract New data on both total and differential cross sections of the production of η mesons in proton–deuteron fusion to He 3 η in the excess energy region 13.6 MeV ≤ Q η ≤ 80.9 MeV are presented.… Expand
Search for $C$ violation in the decay $\eta\rightarrow\pi^0+e^++e^-$ with WASA-at-COSY
- P. Adlarson, W. Augustyniak, +90 authors A. Wirzba
- Physics
- 23 February 2018
We report on the investigation of the rare decay $\eta\rightarrow\pi^0+\text{e}^++\text{e}^-$ which is of interest to study both $C$ violation in the electromagnetic interaction and to search for… Expand
Isospin decomposition of the basic double-pionic fusion in the region of the ABC effect
- P. Adlarson, W. Augustyniak, +111 authors M. Żurek
- Physics
- 12 December 2012
Exclusive and kinematically complete high-statistics measurements of the basic double-pionic fusion reactions pn -> d pi(0)pi(0), pn -> d pi(+)pi(-) and pp -> d pi(+)pi(0) have been carrie ...
Neutron-proton scattering in the context of the d*(2380) resonance
- P. Adlarson, W. Augustyniak, +105 authors I. I. Strakovsky
- Physics
- 21 August 2014
New data on quasifree polarized neutron-proton scattering in the region of the recently observed d* resonance structure are obtained by exclusive and kinematically complete high-statistics measurem… Expand
Search for a dark photon in the pi(0) -> e(+)e(-)gamma decay
- WASA-at-COSY Collaboration P. Adlarson, W. Augustyniak, +112 authors M. Żurek
- Physics
- 2 April 2013
The presently world largest data sample of pi0 --> gamma e+e- decays containing nearly 5E5 events was collected using the WASA detector at COSY. A search for a dark photon U produced in the pi0 -->… Expand
Measurement of central exclusive $\pi^+ \pi^-$ production in $p\bar{p}$ collisions at $\sqrt{s} = 0.9$ and 1.96 TeV at CDF
- C. C. T. Aaltonen, S. Amerio, +402 authors M. Żurek
- Physics
- 4 February 2015
We measure exclusive π+π- production in proton-antiproton collisions at center-of-mass energies s=0.9 and 1.96 TeV in the Collider Detector at Fermilab. We select events with two oppositely charged… Expand