Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Gardestig, A."'
We argue that the reaction mechanism for the coherent pion production is not known with sufficient accuracy to determine the neutron radius of 208Pb to the claimed precision of 0.03 fm.
Comment: 2 pages, 0 figures, Comment on C.M. Tarbert et al
Comment: 2 pages, 0 figures, Comment on C.M. Tarbert et al
Externí odkaz:
http://arxiv.org/abs/1504.08347
Autor:
Isaksson, Mats, Broggio, David, Fojtík, Pavel, Lebacq, Anne Laure, Navarro Amaro, Juan Francisco, Ośko, Jakub, Pérez López, Begoña, Vu, Isabelle, Battisti, Paolo, Börjesson, Jimmy, Carlsson, Marie, Castellani, Carlo Maria, Gårdestig, Magnus, Hill, Peter, Krajewska, Grażyna, Lünendonk, Günter, Meisenberg, Oliver, Stenström, Mats, El Mantani Ordoulidis, Sokratis
Publikováno v:
In Radiation Measurements September 2019 128
Autor:
Andreev, V. A., Carey, R. M., Ganzha, V. A., Gardestig, A., Gorringe, T., Gray, F. E., Hertzog, D. W., Hildebrandt, M., Kammel, P., Kiburg, B., Knaack, S., Kravtsov, P. A., Krivshich, A. G., Kubodera, K., Lauss, B., Lynch, K. R., Maev, E. M., Maev, O. E., Mulhauser, F., Myhrer, F., Petitjean, C., Petrov, G. E., Prieels, R., Schapkin, G. N., Semenchuk, G. G., Soroka, M. A., Tishchenko, V., Vasilyev, A. A., Vorobyov, A. A., Vznuzdaev, M. E., Winter, P.
We propose to measure the rate \Rd\ for muon capture on the deuteron to better than 1.5% precision. This process is the simplest weak interaction process on a nucleus that can both be calculated and measured to a high degree of precision. The measure
Externí odkaz:
http://arxiv.org/abs/1004.1754
Autor:
Gardestig, Anders
Publikováno v:
J.Phys.G36:053001,2009
The experimental and theoretical issues and challenges for extracting the neutron-neutron scattering length are discussed. Particular emphasis is placed on recent results and their impact on the field. Comments are made regarding current experimental
Externí odkaz:
http://arxiv.org/abs/0904.2787
Publikováno v:
ECONFC070910:265,2007
We are interested in the consistency between the cutoff, chiral symmetry, and the power counting. For this purpose, we apply the Wilsonian renormalization group (RG) to an operator and then decrease the Wilsonian cutoff. As an example, we study the s
Externí odkaz:
http://arxiv.org/abs/0710.2927
Autor:
Gardestig, A., Phillips, D. R.
Publikováno v:
ECONF C070910:139,2007
The neutron-neutron scattering length a_nn provides a sensitive probe of charge-symmetry breaking in the strong interaction. Here we summarize our recent efforts to use chiral perturbation theory in order to systematically relate a_nn to the shape of
Externí odkaz:
http://arxiv.org/abs/0710.2830
Motivated by a recent measurement of proton-proton elastic scattering observables up to 3.0 GeV, we investigate the description of those data within models of the nucleon-nucleon (NN) interaction valid above the pion production threshold. In addition
Externí odkaz:
http://arxiv.org/abs/0708.3692
Publikováno v:
Phys.Rev.C76:014005,2007
We compare two non-relativistic (NR) reduction schemes (heavy-fermion and Foldy-Wouthuysen) that are used to derive low-energy effective-field-theory Lagrangians. We give the explicit transformation between the two types of fields to O(1/m^2), derive
Externí odkaz:
http://arxiv.org/abs/0705.2885
Publikováno v:
J.Phys.G36:125007,2009
In nuclear chiral perturbation theory (ChPT), an operator is defined in a space with a cutoff which may be varied within a certain range. The operator runs as a result of the variation of the cutoff [renormalization group (RG) running]. In order for
Externí odkaz:
http://arxiv.org/abs/0704.3757
Autor:
Gardestig, Anders
I present a calculation of the pi- d -> n n gamma reaction to third order in chiral perturbation theory. The short-distance physics of this reaction can be constrained by relating it to several important low-energy weak reactions. The theoretical err
Externí odkaz:
http://arxiv.org/abs/nucl-th/0611010