Perturbative calculations of deuteron form factors

نویسندگان

چکیده

We calculate the deuteron charge, electric quadrupole, and magnetic form factors up to next-to-next-to-leading order in chiral effective field theory, treating subleading corrections, especially that of nuclear forces, perturbation theory. examine power counting based on naive dimensional analysis by investigating ultraviolet cutoff variation these factors. find N${}^2$LO factor shows significant dependence, suggesting contact current operator responsible be enhanced. After promotion N${}^2$LO, it indeed renormalizes factor. This is agreement with a previous work renormalization-group analysis. For charge quadrupole moments, perturbative calculation allows us study how they scale multiple low-energy parameters such as pion mass, binding momentum, momentum transfer.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Perturbative Calculation of the Electromagnetic Form Factors of the Deuteron

Making use of the effective field theory expansion recently developed by the authors, we compute the electromagnetic form factors of the deuteron analytically to next-to-leading order (NLO). The computation is rather simple, and involves calculating several Feynman diagrams, using dimensional regularization. The results agree well with data and indicate that the expansion is converging. They do...

متن کامل

Front-form calculation of the deuteron EM form factors

The deuteron form factors are calculated in the framework of the relativistic nucleon-meson dynamics. The relativistic effects change considerably the Sand D-waves of the deuteron, result in the dominating extra component in the deuteron wave function and generate the contact interaction between the nucleon, mesons and photon. The prediction for the polarization observable t20 is in good agreem...

متن کامل

Hadronic Form Factors and Perturbative Qcd

The electromagnetic form factors of hadrons at large momentum transfer have been the subject of intense theoretical and experimental scrutiny over the past two decades, yet there is still not a universally-accepted framework for their description. This review is a synopsis of their current status at large momentum transfer. The basic theoretical approaches to form factors at large momentum tran...

متن کامل

• Influence of Form Factors on Pionic Deuteron Disintegration

The differential cross section for the reaction 3 He(P,TT)**He has been calculated in a distorted wave impulse approximation model. Results are presented for incident proton lab energies of 415 and 716 MeV and centre-of-mass pion angles of 0° to 10 0°. Recently there has been much interest in the reaction A(P,TT)A+1 where the final nucleus is left in a definite state. These reactions are intere...

متن کامل

Elastic Form Factors of the Proton, Neutron and Deuteron

In this paper an overview of past and future measurements of the elastic nucleon and deuteron electromagnetic form factors and a comparison with a selection of theoretical descriptions is provided.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review C

سال: 2022

ISSN: ['2470-0002', '2469-9985', '2469-9993']

DOI: https://doi.org/10.1103/physrevc.106.015505