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The cross section of neutron-deuteron radiative capture $n d\to {^3H}\gamma$ is calculated at energies relevant to Big-Bang nucleosynthesis ($ 20 \leq E \leq 200 $ Kev) with pionless Effective Field Theory. At these energies, magnetic…

Nuclear Theory · Physics 2016-09-08 H. Sadeghi , S. Bayegan

The cross section for n+p -> d+gamma is calculated at energies relevant to big bang nucleosynthesis using the recently developed effective field theory that describes the two-nucleon sector. The E1 amplitude is computed up to NNNLO and…

Nuclear Theory · Physics 2009-10-31 Jiunn-Wei Chen , Martin J. Savage

An effective field theory calculation of the n+p->d+gamma cross section accurate to 1% for center of mass energy E up to ~1 MeV is presented. At these energies, which are relevant for big-bang nucleosynthesis, isovector magnetic transitions…

Nuclear Theory · Physics 2009-10-31 Gautam Rupak

The radiative capture process n+p-> d+gamma provides clear evidence for meson exchange currents in nuclear physics. We compute this process at low energies using a recently developed power counting for the effective field theory that…

Nuclear Theory · Physics 2009-10-31 Martin J. Savage , Kevin A. Scaldeferri , Mark B. Wise

The neutron capture cross section for $^{90}Zr(n, \gamma)$ has recently been determined using surrogate $^{92}Zr(p, d\gamma)$ data and nuclear reaction theory. That work employed an approximate fitting method based on Bayesian Monte Carlo…

Nuclear Theory · Physics 2022-08-04 Oliver Gorton , Jutta E. Escher

The cross section for the thermal neutron capture by the deuteron is calculated with pionless Effective Field Theory(EFT). No new Three-Nucleon forces are needed up to next-to-next-to-leading order in order to achieve cut-off independent…

Nuclear Theory · Physics 2009-11-11 H. Sadeghi , S. Bayegan , Harald W. Griesshammer

The neutron capture cross section of 26Mg was measured relative to the known gold cross section at thermonuclear energies using the fast cyclic activation technique. The experiment was performed at the 3.75 MV Van-de-Graaff accelerator,…

Nuclear Experiment · Physics 2008-11-26 P. Mohr , H. Beer , H. Oberhummer , G. Staudt

Direct neutron capture on 62Ni is calculated in the DWBA and the cross sections in the energy range relevant for s-process nucleosynthesis are given. It is confirmed that the thermal value of the capture cross section contains a…

Nuclear Theory · Physics 2014-11-18 T. Rauscher , K. H. Guber

Neutron capture measurements on $^{155}$Gd and $^{157}$Gd were performed using the time-of-flight technique at the n\_TOF facility at CERN. Four samples in form of self-sustaining metallic discs isotopically enriched in $^{155}$Gd and…

Nuclear Experiment · Physics 2019-02-11 M. Mastromarco , A. Manna , O. Aberle , S. Amaducci , J. Andrzejewski , L. Audouin , M. Bacak , J. Balibrea , M. Barbagallo , F. Becvar , E. Berthoumieux , J. Billowes , D. Bosnar , A. Brown , M. Caamano , F. Calvino , M. Calviani , D. Cano-Ott , R. Cardella , A. Casanovas , D. M. Castelluccio , F. Cerutti , Y. H. Chen , E. Chiaveri , G. Clai , N. Colonna , G. Cortes , M. A. Cortes-Giraldo , L. Cosentino , L. A. Damone , M. Diakaki , M. Dietz , C. Domingo-Pardo , R. Dressler , E. Dupont , I. Duran , B. Fernandez-Domnguez , A. Ferrari , P. Ferreira , P. Finocchiaro , V. Furman , K. Gobel , A. R. Garca , A. Gawlik , S. Gilardoni , T. Glodariu , I. F. Goncalves , E. Gonzalez-Romero , E. Griesmayer , C. Guerrero , A. Guglielmelli , F. Gunsing , H. Harada , S. Heinitz , J. Heyse , D. G. Jenkins , E. Jericha , F. Kaeppeler , Y. Kadi , A. Kalamara , P. Kavrigin , A. Kimura , N. Kivel , M. Kokkoris , M. Krticka , D. Kurtulgil , E. Leal-Cidoncha , C. Lederer-Woods , H. Leeb , J. Lerendegui-Marco , S. J. Lonsdale , D. Macina , J. Marganiec , T. Martnez , A. Masi , C. Massimi , P. Mastinu , E. A. Maugeri , A. Mazzone , E. Mendoza , A. Mengoni , P. M. Milazzo , F. Mingrone , A. Musumarra , A. Negret , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , I. Porras , J. Praena , J. M. Quesada , D. Radeck , T. Rauscher , R. Reifarth , F. Rocchi , C. Rubbia , J. A. Ryan , M. Sabate-Gilarte , A. Saxena , P. Schillebeeckx , D. Schumann , P. Sedyshev , A. G. Smith , N. V. Sosnin , A. Stamatopoulos , G. Tagliente , J. L. Tain , A. Tarifeno-Saldivia , L. Tassan-Got , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , A. Wallner , S. Warren , C. Weiss , P. J. Woods , T. Wright , P. Zugec

The neutron-neutron fusion process, $nn\to de\nu$, at very low neutron energies is studied in the framework of pionless effective field theory that incorporates dibaryon fields. The cross section and electron energy spectrum for this…

Nuclear Theory · Physics 2009-11-11 Shung-ichi Ando , Kuniharu Kubodera

The radiative neutron capture cross section of 207Pb has been measured at the CERN neutron time of flight installation n_TOF using the pulse height weighting technique in the resolved energy region. The measurement has been performed with…

Nuclear Experiment · Physics 2008-11-26 C. Domingo-Pardo

Lattice QCD calculations of two-nucleon systems are used to isolate the short-distance two-body electromagnetic contributions to the radiative capture process $np \to d\gamma$, and the photo-disintegration processes $\gamma^{(\ast)} d \to…

High Energy Physics - Lattice · Physics 2015-09-30 Silas R. Beane , Emmanuel Chang , William Detmold , Kostas Orginos , Assumpta Parreño , Martin J. Savage , Brian C. Tiburzi

The neutron capture cross section of 204Pb has been measured at the CERN n_TOF installation with high resolution in the energy range from 1 eV to 440 keV. An R-matrix analysis of the resolved resonance region, between 1 eV and 100 keV, was…

Nuclear Experiment · Physics 2008-11-26 C. Domingo-Pardo

The total cross sections of the 16O(n,gamma)17O radiative capture process is described in the framework of the modified potential cluster model with the classification of orbital states according to Young tableaux. The possibility to…

Nuclear Theory · Physics 2015-06-18 S B Dubovichenko , N V Afanasyeva , A V Dzhazairov-Kakhramanov

Several neutron capture cross sections of light neutron-rich nuclei were measured in the astrophysically relevant energy region of 5 to 200 keV. The experimental data are compared to calculations using the direct capture model. The results…

Nuclear Theory · Physics 2007-05-23 P. Mohr , H. Beer , H. Herndl , H. Oberhummer

The (n, gamma) cross section of 206Pb has been measured at the CERN n_TOF facility with high resolution in the energy range from 1 eV to 600 keV by using two optimized C6D6 detectors. In the investigated energy interval about 130 resonances…

Nuclear Experiment · Physics 2012-08-27 TOF Collaboration , C. Domingo-Pardo

The total cross sections of the radiative neutron capture processes on 9Be, 14C, 14N, 15N, and 16O are described in the framework of the modified potential cluster model with the classification of orbital states according to Young tableaux.…

Nuclear Theory · Physics 2014-01-29 Sergey Dubovichenko , Albert Dzhazairov-Kakhramanov , Nadezhda Afanasyeva

The $({\rm n},\gamma)$--cross sections for neutron--rich oxygen isotopes have been calculated in the direct capture model. The experimental data for ${^{18}{\rm O}}({\rm n},\gamma){^{19}{\rm O}}$ can be reproduced using this model. Compared…

Nuclear Theory · Physics 2015-06-26 Karl Grün , Rudolf Pichler , Heinz Oberhummer

The differential cross section and deuteron analysing powers of the dp -> {pp}n charge-exchange reaction have been measured with the ANKE spectrometer at the COSY storage ring. Using a deuteron beam of energy 1170 MeV, data were obtained…

The $pd$ radiative capture reaction plays a vital role in Big Bang nucleosynthesis and stellar proton-proton chain. The study of the low-energy reaction is challenging in both experiments and theories. Using the framework of potential…

Nuclear Theory · Physics 2024-07-02 Nguyen Le Anh , Dao Nhut Anh , Do Huy Tho , Nguyen Huu Nha
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