Scattering of 3He and 4He from polarized 3He between 7 and 18 MeV

Hardy, D.M.; Spiger, R. J.; Baker, Stephen; Chen, Y.S.; Tomberllo, T.A.

doi:10.1016/0375-9474(72)90733-6

Cited by 36 publications

(7 citation statements)

References 15 publications

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“…As seen from Fig. 2, the experimental phase shifts [40,41] are well reproduced within an uncertainty of about ±5%. The same results are also obtained for the p 1/2 , d 3/2 , and d 5/2 waves.…”

Section: A the Asymptotic Normalization Coefficients For 3 He + α → supporting

confidence: 58%

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Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of the
Tursunmahatov
¹
,
Yarmukhamedov
²

2012
Phys. Rev. C
18
2
16
1
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A new analysis of the modern astrophysical S factors for the direct-capture 3 He(α, γ ) 7 Be reaction, precisely measured in recent works [B.S. Nara Singh et al., Phys. Rev. Lett. 93, 262503 (2004); D. Bemmerer et al., ibid. 97, 122502 (2006); F. Confortola et al., Phys. Rev. C 75, 065803 (2007), Gy. Gyrky et al., ibid. 75, 035805 (2007), T. A. D. Brown et al., ibid. 76, 055801 (2007), and A. Di Leva, et al., Phys. Rev. Lett. 102, 232502], has been carried out within the modified two-body potential approach. New estimates are obtained for the "indirectly determined" values of the asymptotic normalization constants and the respective nuclear vertex constants for 3 He + α → 7 Be(g.s.) and 3 He + α → 7 Be(0.429 MeV) as well as the astrophysical S factors S 34 (E) at E 90 keV, including E = 0. The values of asymptotic normalization constants have been used to obtain the values of the ratio of the α-particle spectroscopic factors for the mirror ( 7 Li 7 Be) pair.

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Section: A the Asymptotic Normalization Coefficients For 3 He + α → supporting

confidence: 58%

“…The experimental data are taken from Refs. [40] (open circles) and [41] (open triangles). The bands are our calculated data.…”

Section: A the Asymptotic Normalization Coefficients For 3 He + α → mentioning

confidence: 99%

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of the
Tursunmahatov
¹
,
Yarmukhamedov
²

2012
Phys. Rev. C
18
2
16
1
View full text Add to dashboard Cite

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“…A concept low-energy polarimeter design is shown in Figure 5. The analyzing power for elastic scattering of polarized 3 He on unpolarized 4 He is ideally A N = 1 at a beam energy of ∼5.3 MeV and θ CM ≈ 91 • [20,21]. For the 6 MeV polarized 3 He ++ beam emitted from the EBIS linac, there is a local maximum at A N > 0.9 and θ CM ≈ 96 • where the polarization can be determined by measuring the spin correlated asymmetry from scattered 3 He and 4 He.…”

Section: Low-energy 3 He ++ Beam Polarimetrymentioning

confidence: 99%

Polarized 3He++ Ion Source for RHIC and an EIC

Musgrave¹,

Milner²,

Атоян³

et al. 2018

Proceedings of XVII International Workshop on Polarized Sources, Targets &Amp; Polarimetry — PoS(PSTP2017)

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The capability of accelerating a polarized 3 He ion beam in RHIC would demonstrate an effective polarized neutron beam for the study of new high-energy QCD studies of nucleon structure. This development would be particularly beneficial for the future plans of an Electron Ion Collider (EIC), which could use a polarized 3 He ion beam to probe the spin structure of the neutron. The proposed polarized 3 He ion source is based on the Electron Beam Ion Source (EBIS) currently in operation at Brookhaven National Laboratory (BNL). 3 He gas would be polarized within the 5 T field of the EBIS solenoid via Metastability Exchange Optical Pumping (MEOP) and then pulsed into the EBIS vacuum and drift tube system where the 3 He will be ionized by the 10 Amp electron beam. The goal of the polarized 3 He ion source is to achieve 2.5 × 10 11 3 He ++ /pulse at 70% polarization. An upgrade of the EBIS is currently underway at BNL. The EBIS capability to produce polarized 3 He ++ is being developed through a collaboration between BNL and MIT.

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“…1 и 2. При указанных значениях параметров взаимодействия была рассчитана парциальная волновая функция с ℓ = 0 и проведено ее сравнение со стандартными результатами [20]- [27]. Следует заметить, что фазовый сдвиг, вычисленный нами для рассматриваемых систем, хорошо согласуется с результатами работ [20]- [24].…”

Section: кулоновский предел и сдвиг фазы рассеянияunclassified

“…В работе [22] с использованием потенциала оптической модели и в работе [21] в рамках формализма унитарного корреляционного оператора изучались процессы упругого рассеяния при энергиях ниже 20 МэВ в системах α-n и α-p; было получено хорошее согласие с экспериментальными данными [25]. В недавнем прошлом в работе [20] были рассчитаны фазы упругого рассеяния в системах α-He 3 при низких энергиях, при этом использовалась комбинация потенциала простого взаимодействия двух тел и потенциала двойной свертки; было достигнуто хорошее согласие с экспериментальными данными [23], [26], [27]. Полученные нами значения фазового сдвига δ 1/2+ для систем α-He 3 и α-H 3 слегка отличаются от результатов работы [23] в диапазоне энергий ниже 5 МэВ и хорошо согласуются при энергиях от 5 МэВ до 12 МэВ.…”

Section: кулоновский предел и сдвиг фазы рассеянияunclassified

Преобразования Лапласа Хюльтеновской Функции Грина И Их Применение К Задаче Потенциального Рассеяния

Лаха¹,

Laha²,

Rei³

et al. 2017

TMF

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Выведены и записаны в максимально редуцированном виде замкнутые представления одно- и двукратного преобразований Лапласа хюльтеновской функции Грина уходящей волны, умноженной на потенциал Ямагучи. Выражения для двукратного преобразования используются при вычислении низкоэнергетического фазового сдвига при упругом рассеянии в системах $\alpha$-нуклон, $\alpha$-$He^3$ и $\alpha$-$H^3$. Результаты расчета хорошо согласуются с экспериментальными данными.

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Scattering of 3He and 4He from polarized 3He between 7 and 18 MeV

Cited by 36 publications

References 15 publications

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of the
Tursunmahatov
¹
,
Yarmukhamedov
²

2012
Phys. Rev. C
18
2
16
1
View full text Add to dashboard Cite

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of the
Tursunmahatov
¹
,
Yarmukhamedov
²

2012
Phys. Rev. C
18
2
16
1
View full text Add to dashboard Cite

Polarized 3He++ Ion Source for RHIC and an EIC

Преобразования Лапласа Хюльтеновской Функции Грина И Их Применение К Задаче Потенциального Рассеяния

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Scattering of 3He and 4He from polarized 3He between 7 and 18 MeV

Cited by 36 publications

References 15 publications

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of theTursunmahatov1, Yarmukhamedov2 2012Phys. Rev. C182161View full textAdd to dashboardCite

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of theTursunmahatov1, Yarmukhamedov2 2012Phys. Rev. C182161View full textAdd to dashboardCite

Polarized 3He++ Ion Source for RHIC and an EIC

Преобразования Лапласа Хюльтеновской Функции Грина И Их Применение К Задаче Потенциального Рассеяния

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Product

Resources

About

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of the
Tursunmahatov
¹
,
Yarmukhamedov
²

2012
Phys. Rev. C
18
2
16
1
View full text Add to dashboard Cite

Determination of the3He+α→7Be asymptotic normalization coefficients, the nuclear vertex constants, and their application for the extrapolation of the
Tursunmahatov
¹
,
Yarmukhamedov
²

2012
Phys. Rev. C
18
2
16
1
View full text Add to dashboard Cite