Forward angle analyzing power inp→-nandp→-pquasifree scattering at 643 and 797 MeV

Glass, G.; Bhatia, T. S.; Hiebert, J. C.; Kenefick, R.A.; Nath, S.; Northcliffe, L. C.; Tippens, W. B.; Simmons, J. E.

doi:10.1103/physrevc.47.1369

Cited by 19 publications

(22 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The trend of the new data in the resonance region deviates clearly from that exhibited by the data from previous experiments below and above this region [8][9][10][22][23][24][25][26][27]. The new partial-wave solutions (see below) connect all data within their uncertainties, whereas the SP07 solution obviously fails in the resonance region.…”

Section: Amentioning

confidence: 52%

Neutron-proton scattering in the context of thed*(2380) resonance

Adlarson¹,

Augustyniak²,

Bardan³

et al. 2014

Phys. Rev. C

View full text Add to dashboard Cite

New data on quasifree polarized neutron-proton scattering, in the region of the recently observed d * resonance structure, have been obtained by exclusive and kinematically complete high-statistics measurements with WASA at COSY. This paper details the determination of the beam polarization, 2 checks of the quasifree character of the scattering process, on all obtained Ay angular distributions and on the new partial-wave analysis, which includes the new data producing a resonance pole in the 3 D3-3 G3 coupled partial waves at (2380±10−i40±5) MeV -in accordance with the d * dibaryon resonance hypothesis. The effect of the new partial-wave solution on the description of total and differential cross section data as well as specific combinations of spin-correlation and spin-transfer observables available from COSY-ANKE measurements at T d = 2.27 GeV is discussed.

show abstract

Section: Amentioning

confidence: 52%

Neutron-proton scattering in the context of thed*(2380) resonance

Adlarson¹,

Augustyniak²,

Bardan³

et al. 2014

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…The solid symbols denote the results from this work, the open symbols those from previous work [7][8][9][19][20][21][22][23]. For the meaning of the curves see Fig.…”

Section: = 83mentioning

confidence: 96%

Evidence for a New Resonance from Polarized Neutron-Proton Scattering

Adlarson¹,

Augustyniak²,

Bardan³

et al. 2014

Phys. Rev. Lett.

168

View full text Add to dashboard Cite

Exclusive and kinematically complete high-statistics measurements of quasifree polarized np scattering have been performed in the energy region of the narrow resonance-like structure d * with 2 I(J P ) = 0(3 + ), M ≈ 2380 MeV and Γ ≈ 70 MeV observed recently in the double-pionic fusion channels pn → dπ 0 π 0 and pn → dπ + π − . The experiment was carried out with the WASA detector setup at COSY having a polarized deuteron beam impinged on the hydrogen pellet target and utilizing the quasifree process dp → np + pspectator. This allowed the np analyzing power, Ay, to be measured over a broad angular range. The obtained Ay angular distributions deviate systematically from the current SAID SP07 NN partial-wave solution. Incorporating the new Ay data into the SAID analysis produces a pole in the 3 D3 − 3 G3 waves in support of the d * resonance hypothesis.

show abstract

“…Top: energy dependence of the analysing power in the vicinity of Θ cm n = 90 • , where the effect of the d * (2380) resonance is expected to be largest. The solid circles denote WASA results, the open symbols previous data [371,372,373,374,375,376,377,378]. The solid line gives the previous SAID partial-wave solution, the dashed line the new SAID solution after including the WASA data.…”

Section: * (2380) -A Genuine Dibaryon Resonancementioning

confidence: 99%