pp¡æ pp?ð0 near the Threshold in Pionless Effective Field Theory
نویسندگان
چکیده
منابع مشابه
Rearranging Pionless Effective Field Theory
We point out a redundancy in the operator structure of the pionless effective field theory, EFT(π/), which dramatically simplifies computations. This redundancy is best exploited by using dibaryon fields as fundamental degrees of freedom. In turn, this suggests a new power counting scheme which sums range corrections to all orders. We explore this method with a few simple observables: the deute...
متن کاملPions in the Pionless Effective Field Theory
We show that processes involving pions that remain very near their massshell can be reliably computed in the pionless effective field theory, with the pion integrated in as a heavy field. As an application, we compute the πdeuteron scattering amplitude near threshold to next-to-leading order in the momentum expansion. This amplitude is formally dominated by an infrared logarithm of the form log...
متن کاملFew-Body Systems and the Pionless Effective Field Theory
The pionless effective field theory (EFT) is the appropriate low-energy EFT for short-range interactions that display a large scattering length. It has been successfully applied in atomic, nuclear and particle physics. We give an overview over recent calculations employing the pionless effective field theory and lay emphasis on applications in the threeand four-body sector where the most exciti...
متن کاملProton–proton fusion in pionless effective theory
Article history: Received 30 January 2008 Accepted 19 August 2008 Available online 28 August 2008 Editor: W. Haxton PACS: 21.45.Bc 26.20.Cd 26.65.+t The proton–proton fusion reaction, pp → de+ν , is studied in pionless effective field theory (EFT) with di-baryon fields up to next-to leading order. With the aid of the di-baryon fields, the effective range corrections are naturally resummed up to...
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PARITY VIOLATION IN NEUTRON DEUTERON SCATTERING IN PIONLESS EFFECTIVE FIELD THEORY
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ژورنال
عنوان ژورنال: Journal of the Korean Physical Society
سال: 2008
ISSN: 0374-4884
DOI: 10.3938/jkps.53.1131