T → d + n vertex function and its correlation with the triton binding energy and with the doublet nd scattering lengthстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Авторы:
Orlov Yu V. ,
Orevkov Yu P.,
Nikitina L.I.
Журнал:
Physics of Atomic Nuclei
Том:
65
Номер:
2
Год издания:
2002
Издательство:
Pleiades Publishing, Ltd
Местоположение издательства:
Road Town, United Kingdom
Первая страница:
371
Последняя страница:
381
DOI:
10.1134/1.1451956
Аннотация:
The asymptotic normalization constant C T 2 for the triton is calculated within a two-body model for potentials characterized by a Yukawa-type short-distance behavior and the long-distance asymptotic behavior V(τ) → const x τ -ν exp(-μr), where ν = 0, 1, 2. It is shown that C T 2 decreases monotonically with increasing v and that it smoothly decreases with increasing a 2κ, where a 2 is the doublet scattering length and κ is the triton wave number. This behavior is consistent with effectiverange theory taking into account the pole of κ cot δ and with the general trend of Faddeev calculations. It is established, however, that some calculations reported previously and performed on the basis of the N/D method yield, on the contrary, a sharp growth of C T 2. The results of the calculation of the form factor for the T → d + n vertex are compared with the results of the well-known three-body calculation. © 2002 MAIK "Nauka/Interperiodica".
Добавил в систему:
Орлов Юрий Всеволодович