Spin dependence of the antinucleon-nucleon interaction

Haidenbauer, J.

doi:10.1088/1742-6596/295/1/012094

Cited by 5 publications

(9 citation statements)

References 40 publications

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“…Results for the total and integrated elastic (pp) and charge-exchange (pp →nn) cross sections and also for angular-dependent observables for both models can be found in Refs. [11,13,26]. Evidently, with model A as well as with D a very good overall reproduction of the low-and intermediate-energyNN data was achieved.…”

Section: Results Forp 3 He Andp 4 He Based On the Glauber-sitenkmentioning

confidence: 69%

“…As was shown in Refs. [9,11] on the basis of the Glauber-Sitenko theory [13,14] with elementary pN amplitudes taken from the Jülich N N models [15][16][17][18], the pd interaction could provide a comparable or even more effective way than the pp interaction to obtain polarized antiprotons. This conjecture can be checked at a planned experiment [19] at the AD (Antiproton Decelerator) facility at CERN.…”

Section: Introductionmentioning

confidence: 99%

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Antiproton scattering off3He and4He nuclei at low and intermediate energies

2011

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Antiproton scattering off 3 He and 4 He targets is considered at beam energies below 300 MeV within the Glauber-Sitenko approach, utilizing theNN amplitudes of the Jülich model as input. A good agreement with available data on differentialp 4 He cross sections and onp 3 He andp 4 He reaction cross sections is obtained. Predictions for polarized totalp 3 He cross sections are presented, calculated within the single-scattering approximation and including Coulomb-nuclear interference effects. The kinetics of the polarization buildup is discussed.

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Section: Results Forp 3 He Andp 4 He Based On the Glauber-sitenkmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Antiproton scattering off3He and4He nuclei at low and intermediate energies

2011

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“…We follow the methods developed in Refs. [51][52][53][54][55][56] to calculate the buildup of polarization of an antiproton beam. We present results for antiproton laboratory momenta from 100 to 1000 MeV/c and for typical acceptance angles θ lab acc = 5, 10, 20, and 30 mrad in the laboratory frame.…”

Section: Towards Polarized Antiprotonsmentioning

confidence: 99%

“…Our results can be compared to the model calculations of Refs. [53][54][55]. We assume that the polarization buildup due to the filtering mechanism dominates and that spin-flip mechanisms in the beam can be neglected [52].…”

Section: Towards Polarized Antiprotonsmentioning

confidence: 99%

Polarization observables in low-energy antiproton-proton scattering

Zhou

Timmermans

2013

Phys. Rev. C

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We investigate the polarization parameters in low-energy antiproton-proton elastic ($\bar{p}p\rightarrow\bar{p}p$) and charge-exchange ($\bar{p}p\rightarrow\bar{n}n$) scattering. The predictions for unmeasured observables are based on our new energy-dependent partial-wave analysis of all antiproton-proton scattering data below 925 MeV/$c$ antiproton laboratory momentum, which gives an optimal description of the existing database. Sizable and remarkable spin effects are observed, in particular for charge-exchange scattering. These result from the spin dependence of the long- and medium-range one- and two-pion exchange antinucleon-nucleon potential and the state dependence of the parametrized short-range interaction. We study the possibility of polarizing a circulating antiproton beam with a polarized proton target by exploiting the spin dependence of the $\bar{p}p$ total cross section. It appears feasible to achieve a significant transverse polarization of an antiproton beam within a reasonable time

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“…This option was discussed in our paper [8] within the singlescattering approximation. The spin dependence of the elementary pN amplitudes was taken into account only in collinear kinematics using the N N interaction model of the Jülich group [9,10,11,12] and total spin-dependent cross sections were calculated for energies in the region 50-300 MeV using the generalized optical theorem. A very similar analysis was performed by us for p 3 He elastic scattering and the corresponding total cross sections were calculated [13].…”

Section: Introductionmentioning

confidence: 99%

Spin dependence of the pbar-d and pbar-3He interactions

Haidenbauer,

Uzikov

2012

Preprint

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Elastic scattering of antiprotons on deuteron and 3 He targets is studied within the Glauber-Sitenko theory. In case of pd scattering, the single-and double pN scattering mechanisms and the full spin dependence of the elementary pN scattering amplitudes are taken into account on the basis of an appropriately modified formalism developed for pd scattering. Differential cross sections and analyzing powers are calculated for antiproton beam energies between 50 and 300 MeV, using the N N model of the Jülich group as input. Results for total polarized cross sections are obtained via the optical theorem. The efficiency of the polarization buildup for antiprotons in a storage ring is discussed.

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Spin dependence of the antinucleon-nucleon interaction

Cited by 5 publications

References 40 publications

Antiproton scattering off3He and4He nuclei at low and intermediate energies

Antiproton scattering off3He and4He nuclei at low and intermediate energies

Polarization observables in low-energy antiproton-proton scattering

Spin dependence of the pbar-d and pbar-3He interactions

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