بررسی برهم‌کنش کائون- دوترون و ساختار تشدید (1405) Λ با استفاده از روش فدیف
نویسندگان
چکیده مقاله:
In this paper, we have investigated the kaon-deuteron interaction at an incident momentum of 1 GeV/c using the relativistic and non-relativistic Faddeev method for different phenomenological and chiral potentials. By calculating the π∑ invariant mass spectra on different particle channels, we have shown that the trace of Λ(1405) resonance is visible in such spectra. In the present work, the study of kaon-deuteron interaction is used to better understand of the KN-π ∑ interaction and the nature of the Λ(1405) resonance
منابع مشابه
محاسبه سطح مقطع تشکیل (1405)Λ در برخورد کائون-دوترون: مقایسه با داده‌های 31E
حالتِ تشدیدیِ (1405)Λ (یا به اختصار Λ*) چند دهه است که هم از لحاظ نظری و هم از لحاظ تجربی مورد بررسی و بازنگری بوده است. هدف این مقاله بررسی نظری جرم و پهنای ذره‌ی Λ* از طریق محاسبات ماتریسِ گذار Tبا استفاده از یک پتانسیل پدیده‌شناسی جداپذیر است. در محاسبات حاضر، احتمال تشکیلِ حالتِ Λ* در واکنشK-d→Λ*+n→ (Σπ)0+n بررسی و ...
متن کاملبررسی تشکیل حالت (1405)Λ در برهم‌کنش (1405)Λp+p→p+K+
In this paper, the invariant mass spectra of Λ (1405)→(Σπ)0 in high energy proton-proton collisions in center of mass frame have been theoretically investigated. In pp collision the Λ (1405) formation possibility has been taken into account and its decay rate to (Σπ)0 channel, has been calculated with T-matrix elements and Green’s function method. Finally, the results have been compared with ...
متن کاملMagnetic moments of the Λ(1405) and Λ(1670) resonances
By using techniques of unitarized chiral perturbation theory, where the Λ(1405) and Λ(1670) resonances are dynamically generated, we evaluate the magnetic moments of these resonances and their transition magnetic moment. The results obtained here differ appreciably from those obtained with existing quark models. The width for the Λ(1670) → Λ(1405)γ transition is also evaluated leading to a bran...
متن کاملQCD Sum Rule for Λ ( 1405 )
Motivated by the recently constructed interpolation field for S11(1535), we propose a new interpolating field for Λ(1405). Using this current, we calculate the mass of Λ(1405) based on the conventional QCD sum rule analysis. By calculating the Wilson coefficients up to dimension 8 operators and taking into account the mass corrections from s-quark, we find the calculated mass of Λ(1405) to be v...
متن کاملStructure of Λ ( 1405 ) and chiral dynamics ∗
We report on a recent theoretical work on the structure of the Λ(1405) resonance within a chiral unitary approach, in which the resonance is dynamically generated in meson-baryon scattering. Studying the analytic structure of the scattering amplitude, we have found that there are two poles lying around energies of Λ(1405) with different widths and couplings to the meson-baryon states. We discus...
متن کاملA pentaquark picture of Λ(1405)
We test a pentaquark model of the negative parity hyperon Λ(1405). We use a model where valence four quarks and one antiquark move in a potential relativistically and interact with each other and themselves through gluon and NG boson. Fall-apart decay rate of the system is studied and strong model dependence is pointed out.
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 18 شماره 4
صفحات 539- 549
تاریخ انتشار 2019-03
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
کلمات کلیدی برای این مقاله ارائه نشده است
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023