Angular dependence of analyzing power in np elastic scattering between 0.312 and 1.10 GeV

Ball, J.; Chesny, Ph.; Combet, M.; Fontaine, J.M.; Lac, C.D.; Sans, Jordi; Bystrický, J.; Lehar, F.; Lesquen, A. de; Mali, M.; Perrot‐Kunne, F.; Rossum, L. van; Ahmidouch, A.; Bach, P.; Demierre, Ph.; Gaillard, G.; Heß, R.; Kunne, R.; Rapin, D.; Sormani, Ph.; Goudour, J.P.; Binz, R.; Klett, A.; Rössle, E.; Schmitt, H.; Lopiano, D.; Spinka, H.

doi:10.1016/0375-9474(93)90257-x

Cited by 26 publications

(15 citation statements)

References 32 publications

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“…These data sets, at T n = 1.095 GeV ( √ s = 2.36 GeV) [8,9] and T n = 1.27 GeV ( √ s = 2.43 GeV) [10,11], exhibit very similar angular distributions. This gap in the existing measurements of A y has motivated the present study, the main results of which have been communicated recently already in a Letter [12].…”

Section: Introductionmentioning

confidence: 68%

“…We also include in Fig. 5 previously obtained angular distributions at √ s = 2.360 and 2.440 GeV (T n = 1.095 and 1.27 GeV) [8][9][10][11], which are closest to the resonance region covered here. Note, that these angular distributions being below and above the resonance region exhibit a significantly different angular behavior -in particular at medium angles.…”

Section: Amentioning

confidence: 99%

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

Adlarson¹,

Augustyniak²,

Bardan³

et al. 2014

Phys. Rev. C

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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.

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Section: Introductionmentioning

confidence: 68%

Section: Amentioning

confidence: 99%

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

Adlarson¹,

Augustyniak²,

Bardan³

et al. 2014

Phys. Rev. C

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“…modern partial wave analysis [43] based on the data obtained at Saclay [44][45][46] and at COSY [47] provides similar values of the analyzing powers for the elastic np-and ppscattering. The tensor polarization of the beam was found to be consistent with zero [40].…”

Section: Discussionmentioning

confidence: 99%

Measurement of the differential cross-section and deuteron vector analyzing power in dp-elastic scattering at 2.0 GeV

et al. 2012

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“…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: 92%

“…These data sets, at T n = 1.095 GeV ( √ s = 2.36 GeV) [7,8] and T n = 1.27 GeV ( √ s = 2.43 GeV) [9,10], exhibit very similar angular distributions. This gap in the existing measurements of A y has motivated the present study.…”

Section: Introductionmentioning

confidence: 88%

Evidence for a New Resonance from Polarized Neutron-Proton Scattering

Adlarson¹,

Augustyniak²,

Bardan³

et al. 2014

Phys. Rev. Lett.

168

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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.

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Angular dependence of analyzing power in np elastic scattering between 0.312 and 1.10 GeV

Cited by 26 publications

References 32 publications

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

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

Measurement of the differential cross-section and deuteron vector analyzing power in dp-elastic scattering at 2.0 GeV

Evidence for a New Resonance from Polarized Neutron-Proton Scattering

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