Parity nonconserving proton-proton elastic scattering

Partanen, T. M.; Niskanen, J.A.; Iqbal, M.J.

doi:10.1140/epja/i2012-12119-1

Cited by 3 publications

(4 citation statements)

References 44 publications

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“…So far, these contributions have been considered in a hybrid approach in Refs. [30,31]. In this paper, we investigate within a full EFT approach which ranges of h π and C are consistent with existing data and how these ranges relate to the above estimates and limits.…”

Section: Estimates and Limits Of H πmentioning

confidence: 63%

“…These contributions have so far been investigated in a hybrid approach in Refs. [30,31], but the authors of these references did not extract the value of h π .…”

Section: Discussionmentioning

confidence: 99%

“…These conclusions are in line with the observations made in Refs. [37,34,31] where the critical angle behaviour was also studied, albeit for different P -even and -odd potentials. With the current fit parameters we predict an asymmetry as measured in the 221 MeV experiment of 6.7…”

Section: Fit Of the Counter Termmentioning

confidence: 99%

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Parity violation in proton-proton scattering from chiral effective field theory

et al. 2013

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We present a calculation of the parity-violating longitudinal asymmetry in proton-proton scattering. The calculation is performed in the framework of chiral effective field theory which is applied systematically to both the parity-conserving and parity-violating interactions. The asymmetry is calculated up to next-to-leading order in the parity-odd nucleon-nucleon potential. At this order the asymmetry depends on two parity-violating low-energy constants: the weak pion-nucleon coupling constant h π and one four-nucleon contact coupling. By comparison with the existing data, we obtain a rather large range for h π = (1.1 ± 2) · 10 −6 . This range is consistent with theoretical estimations and experimental limits, but more data are needed to pin down a better constrained value. We conclude that an additional measurement of the asymmetry around 125 MeV lab energy would be beneficial to achieve this goal. arXiv:1309.4711v2 [nucl-th]

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Section: Estimates and Limits Of H πmentioning

confidence: 63%

“…These contributions have so far been investigated in a hybrid approach in Refs. [30,31], but the authors of these references did not extract the value of h π .…”

Section: Discussionmentioning

confidence: 99%

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Parity violation in proton-proton scattering from chiral effective field theory

et al. 2013

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“…The contributions from including the ∆ resonance and two-pion exchange are studied in Refs. [184,182,221] in combination with the Reid93 [222] and DDH models. These contributions turn out to be significant at 221 MeV, the energy of one of the existing experimental results.…”

Section: Model Resultsmentioning

confidence: 99%

The theory of parity violation in few-nucleon systems

Schindler

Springer

2013

Progress in Particle and Nuclear Physics

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We review recent progress in the theoretical description of hadronic parity violation in fewnucleon systems. After introducing the different methods that have been used to study parityviolating observables we discuss the available calculations for reactions with up to five nucleons. Particular emphasis is put on effective field theory calculations where they exist, but earlier and complementary approaches are also presented. We hope this review will serve as a guide for those who wish to know what calculations are available and what further calculations need to be completed before we can claim to have a comprehensive picture of parity violation in few nucleon systems.

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Parity-nonconserving cold neutron-parahydrogen interactions

Partanen

2012

Eur. Phys. J. A

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Three pion dominated observables of the parity nonconserving interactions between the cold neutrons and parahydrogen are calculated. The transversely polarized neutron spin rotation, unpolarized neutron longitudinal polarization, and photon-asymmetry of the radiative polarized neutron capture are considered. For the numerical evaluation of the observables, the strong interactions are taken into account by the Reid93 potential and the parity nonconserving interactions by the DDH model along with the two-pion exchange. * tero.partanen@helsinki.fi

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Parity nonconserving proton-proton elastic scattering

Cited by 3 publications

References 44 publications

Parity violation in proton-proton scattering from chiral effective field theory

Parity violation in proton-proton scattering from chiral effective field theory

The theory of parity violation in few-nucleon systems

Parity-nonconserving cold neutron-parahydrogen interactions

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