Energy dependence of the parity-violating asymmetry of circularly polarized photons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>d</mml:mi><mml:mover accent="true"><mml:mi>γ</mml:mi><mml:mo>⃗</mml:mo></mml:mover><mml:mo>→</mml:mo><mml:mi>n</mml:mi><mml:mi>p</mml:mi></mml:mrow></mml:math>in pionless effective field theory

Vanasse, Jared; Schindler, Matthias R.

doi:10.1103/physrevc.90.044001

Cited by 16 publications

(23 citation statements)

References 49 publications

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“…One of the two dominant couplings is the isotensor LEC that may be accessible in the reaction γd → np at an upgraded High Intensity Gamma-Ray Source (HIGS) at the Triangle Universities Nuclear Laboratory [22,23]. In addition, we find that the two isoscalar EFT(/ π) LECs are equal up to order 1/N 2 c , i.e., up to corrections expected to be at the 10% level.…”

Section: Introductionmentioning

confidence: 73%

Large-Nclimit reduces the number of independent few-body parity-violating low-energy constants in pionless effective field theory

2016

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The symmetries of the Standard Model dictate that for very low energies, where nucleon dynamics can be described in terms of a pionless effective field theory (EFT(/ π)), the leading-order parity-violating nucleon-nucleon Lagrangian contains five independent unknown low-energy constants (LECs). We find that imposing the approximate symmetry of QCD that appears when the number of colors N c becomes large reduces the number of independent LECs to two at leading order in the combined EFT(/ π) and large-N c expansions. We also find a relation between the two isoscalar LECs in the large-N c limit. This has important implications for the number of experiments and/or lattice calculations necessary to confirm this description of physics. In particular, we find that a future measurement of the PV asymmetry in γd → np together with the existing result for PV pp scattering would constrain all leading-order (in the combined expansion) LECs. This is considerably improved from the previous understanding of the system.

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Section: Introductionmentioning

confidence: 73%

Large-Nclimit reduces the number of independent few-body parity-violating low-energy constants in pionless effective field theory

2016

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“…The PV asymmetry was calculated to NLO in EFT(/ π) in Ref. [15]. Because the PV LECs have not been reliably determined, their values were related to different model estimates (see Ref.…”

Section: Two-nucleon Systemsmentioning

confidence: 99%

“…Because the PV LECs have not been reliably determined, their values were related to different model estimates (see Ref. [15] for details). The energy dependence of A γ L using three different estimates for the LECs is shown in Fig.…”

Section: Two-nucleon Systemsmentioning

confidence: 99%

Hadronic parity violation in few-body systems

Schindler

2016

EPJ Web of Conferences

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“…A NLO calculation of the asymmetry and its energy dependence was performed in Ref. [27]. The result for A γ L is shown in Fig.…”

Section: Pos(cd15)043mentioning

confidence: 99%

“…In order to find an energy range at which to perform the experiment, a simplistic figure of merit was considered in Ref. [27],…”

Section: Pos(cd15)043mentioning

confidence: 99%

Hadronic parity violation in effective field theory

Schindler¹

2016

Proceedings of the 8th International Workshop on Chiral Dynamics — PoS(CD15)

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Parity-violating interactions between nucleons are the manifestation of an interplay of strong and weak interactions between quarks in the nucleons. Because of the short range of the weak interactions, these parity-violating forces provide a unique probe of low-energy strong interactions. An ongoing experimental program is mapping out this weak component of the nuclear force in few-nucleon systems. Recent theoretical progress in analyzing and interpreting hadronic parity violation in such systems based on effective field theory methods is described. In particular, important information on parity-violating nucleon-nucleon interactions can be gained from an asymmetry in deuteron photodisintegration, which might be measurable at a future high-intensity photon source such as the proposed upgraded HIGS facility.

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Energy dependence of the parity-violating asymmetry of circularly polarized photons indγ⃗→npin pionless effective field theory

Cited by 16 publications

References 49 publications

Large-Nclimit reduces the number of independent few-body parity-violating low-energy constants in pionless effective field theory

Large-Nclimit reduces the number of independent few-body parity-violating low-energy constants in pionless effective field theory

Hadronic parity violation in few-body systems

Hadronic parity violation in effective field theory

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