Related papers: 3He(alpha,gamma)7Be cross section at low energies

Measurement of the $e^{+}e^{-}\to\Sigma^{0}\bar{\Sigma}^{0}$ cross sections at center-of-mass energies from $2.3864$ to $3.0200$ GeV

The Born cross sections of $e^{+}e^{-}\to \Sigma^{0}\bar{\Sigma}^{0}$ are measured at center-of-mass energies from $2.3864$ to $3.0200$ GeV using data samples with an integrated luminosity of $328.5$ pb$^{-1}$ collected with the BESIII…

High Energy Physics - Experiment · Physics 2022-03-03 M. Ablikim , M. N. Achasov , P. Adlarson , S. Ahmed , M. Albrecht , A. Amoroso , Q. An , Anita , Y. Bai , O. Bakina , R. Baldini Ferroli , I. Balossino , Y. Ban , K. Begzsuren , J. V. Bennett , N. Berger , M. Bertani , D. Bettoni , F. Bianchi , J Biernat , J. Bloms , A. Bortone , I. Boyko , R. A. Briere , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , W. L. Chang , G. Chelkov , D. Y. Chen , G. Chen , H. S. Chen , M. L. Chen , S. J. Chen , X. R. Chen , Y. B. Chen , W. Cheng , G. Cibinetto , F. Cossio , X. F. Cui , H. L. Dai , J. P. Dai , X. C. Dai , A. Dbeyssi , R. B. de Boer , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , Y. Ding , C. Dong , J. Dong , L. Y. Dong , M. Y. Dong , S. X. Du , J. Fang , S. S. Fang , Y. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , M. Fritsch , C. D. Fu , Y. Fu , X. L. Gao , Y. Gao , Y. Gao , Y. G. Gao , I. 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Malde , Q. A. Malik , A. Mangoni , Y. J. Mao , Z. P. Mao , S. Marcello , Z. X. Meng , J. G. Messchendorp , G. Mezzadri , T. J. Min , R. E. Mitchell , X. H. Mo , Y. J. Mo , N. Yu. Muchnoi , H. Muramatsu , S. Nakhoul , Y. Nefedov , F. Nerling , I. B. Nikolaev , Z. Ning , S. Nisar , S. L. Olsen , Q. Ouyang , S. Pacetti , X. Pan , Y. Pan , A. Pathak , P. Patteri , M. Pelizaeus , H. P. Peng , K. Peters , J. Pettersson , J. L. Ping , R. G. Ping , A. Pitka , R. Poling , V. Prasad , H. Qi , H. R. Qi , M. Qi , T. Y. Qi , S. Qian , W. -B. Qian , Z. Qian , C. F. Qiao , L. Q. Qin , X. P. Qin , X. S. Qin , Z. H. Qin , J. F. Qiu , S. Q. Qu , K. H. Rashid , K. Ravindran , C. F. Redmer , A. Rivetti , V. Rodin , M. Rolo , G. Rong , Ch. Rosner , M. Rump , A. Sarantsev , M. Savrié , Y. Schelhaas , C. Schnier , K. Schoenning , D. C. Shan , W. Shan , X. Y. Shan , M. Shao , C. P. Shen , P. X. Shen , X. Y. Shen , H. C. Shi , R. S. Shi , X. Shi , X. D Shi , J. J. Song , Q. Q. Song , W. M. Song , Y. X. Song , S. Sosio , S. Spataro , F. F. Sui , G. X. Sun , J. F. Sun , L. Sun , S. S. Sun , T. Sun , W. Y. Sun , Y. J. Sun , Y. K Sun , Y. Z. Sun , Z. T. Sun , Y. H. Tan , Y. X. Tan , C. J. Tang , G. Y. Tang , J. Tang , V. Thoren , B. Tsednee , I. Uman , B. Wang , B. L. Wang , C. W. Wang , D. Y. Wang , H. P. Wang , K. Wang , L. L. Wang , M. Wang , M. Z. Wang , Meng Wang , W. H. Wang , W. P. Wang , X. Wang , X. F. Wang , X. L. Wang , Y. Wang , Y. Wang , Y. D. Wang , Y. F. Wang , Y. Q. Wang , Z. Wang , Z. Y. Wang , Ziyi Wang , Zongyuan Wang , T. Weber , D. H. Wei , P. Weidenkaff , F. Weidner , S. P. Wen , D. J. White , U. Wiedner , G. Wilkinson , M. Wolke , L. Wollenberg , J. F. Wu , L. H. Wu , L. J. Wu , X. Wu , Z. Wu , L. Xia , H. Xiao , S. Y. Xiao , Y. J. Xiao , Z. J. Xiao , X. H. Xie , Y. G. Xie , Y. H. Xie , T. Y. Xing , X. A. Xiong , G. F. Xu , J. J. Xu , Q. J. Xu , W. Xu , X. P. Xu , L. Yan , L. Yan , W. B. Yan , W. C. Yan , Xu Yan , H. J. Yang , H. X. Yang , L. Yang , R. X. 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Zhu , B. S. Zou , J. H. Zou

Photon absorption on a neutron-proton pair in $^3$He

The cross section of the reaction $^3$He$(\gamma,pn)p_{spec}$ in the energy range 150 - 450 MeV has been calculated in a quasifree two-body model and compared with a recent kinematically complete experiment. In comparison with free deuteron…

Nuclear Theory · Physics 2009-10-28 P. Wilhelm , J. A. Niskanen , H. Arenhövel

Low-energy photodisintegration of 9Be and alpha + alpha + n <-> 9Be + gamma reactions at astrophysical conditions

A semi-microscopic model for the low-energy photodisintegration of the 9Be nucleus is constructed, and the experimental data are analyzed with its help. The older radioactive isotope data are supported by this analysis. The theoretical…

Nuclear Theory · Physics 2009-10-31 V. D. Efros , H. Oberhummer , A. Pushkin , I. J. Thompson

Nuclear aspects of the solar neutrino problem

The present status of the nuclear reaction rates determining the solar neutrino flux is discussed. This includes the reaction rates for the two branching ratios of the three pp-chains involving the reactions 3He(3He,2p)4He and…

Nuclear Theory · Physics 2008-11-26 H. Oberhummer , A. N. Ivanov , N. I. Troitskaya , M. Faber

S17(0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8B

A kinematically complete measurement was made of the Coulomb dissociation of 8B nuclei on a Pb target at 83 MeV/nucleon. The cross section was measured at low relative energies in order to infer the astrophysical S factor for the…

Nuclear Experiment · Physics 2009-11-07 B. Davids , D. W. Anthony , T. Aumann , Sam M. Austin , T. Baumann , D. Bazin , R. R. C. Clement , C. N. Davids , H. Esbensen , P. A. Lofy , T. Nakamura , B. M. Sherrill , J. Yurkon

Impact of a low-energy enhancement in the gamma-ray strength function on the radiative neutron-capture

A low-energy enhancement of the gamma-ray strength function in several light and medium-mass nuclei has been observed recently in 3He-induced reactions. The effect of this enhancement on (n,gamma) cross-sections is investigated for stable…

Nuclear Experiment · Physics 2012-11-28 A. C. Larsen , S. Goriely

Measurement of 73Ge(n,g) cross sections and implications for stellar nucleosynthesis

73Ge(n,g) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT…

Nuclear Experiment · Physics 2019-02-22 Claudia Lederer-Woods

Coherent photoproduction of eta-mesons off 3He - search for eta-mesic nuclei

Coherent photoproduction of $\eta$-mesons off $^3$He, i.e. the reaction $\gamma ^3{He}\rightarrow \eta ^3{He}$, has been investigated in the near-threshold region. The experiment was performed at the Glasgow tagged photon facility of the…

Nuclear Experiment · Physics 2012-10-05 F. Pheron , J. Ahrens , J. R. M. Annand , H. J. Arends , K. Bantawa , P. A. Bartolome , R. Beck , V. Bekrenev , H. Berghaeuser , B. Boillat , A. Braghieri , D. Branford , W. J. Briscoe , J. Brudvik , S. Cherepnya , B. Demissie , M. Dieterle , E. J. Downie , P. Drexler , D. I. Glazier , E. Heid , L. V. Fil'kov , D. Hornidge , D. Howdle , O. Jahn , I. Jaegle , T. C. Jude , V. L. Kashevarov , I. Keshelashvili , R. Kondratiev , M. Korolija , M. Kotulla , A. Kulbardis , S. P. Kruglov , B. Krusche , V. Lisin , K. Livingston , I. J. D. MacGregor , Y. Maghrbi , J. Mancell , D. M. Manley , Z. Marinides , M. Martinez , J. C. McGeorge , E. McNicoll , D. Mekterovic , V. Metag , S. Micanovic , D. G. Middleton , A. Mushkarenkov , B. M. K. Nefkens , A. Nikolaev , R. Novotny , M. Oberle , M. Ostrick , B. Oussena , P. Pedroni , A. Polonski , S. N. Prakhov , J. Robinson , G. Rosner , T. Rostomyan , S. Schumann , M. H. Sikora , D. I. Sober , A. Starostin , I. Supek , M. Thiel , A. Thomas , M. Unverzagt , D. P. Watts , D. Werthmueller , L. Witthauer , F. Zehr

Evidence for High-Momentum Enhancement in the Exclusive 3He(e,e'p) Reaction Below the Quasi-Elastic Peak

New, high-precision measurements of the 3He(e,e'p) reaction using the A1 collaboration spectrometers at the Mainz microtron MAMI are presented. These were performed in parallel kinematics at energy transfers below the quasi-elastic peak,…

Nuclear Experiment · Physics 2019-08-15 A. Kozlov , A. J. Sarty

Measurement of cross sections and astrophysical S-factors for d(p,gamma)3He reaction at astrophysically relevant energies using a large volume LaBr3:Ce detector

In nuclear astrophysics, the experimental scenario is still unclear for BBN relevant energies from 30-300 keV. Here, we report our measurements of cross section and astrophysical S(E) factor for pd capture reaction using proton beam…

Nuclear Experiment · Physics 2018-06-18 M. Dhibar , I. Mazumdar , G. Anil Kumar , A. K. Rhine Kumar , S. M. Patel , P. B. Chavan , C. D. Bagdia , L. C. Trivedi

Precision Measurement of the Decay Rate of 7Be in Host Materials

A controlled and precise determination of the cross-sections of the fusion reactions 7Be(p,gamma)8B and 3He(4He,gamma)7Be, which play an important role in determining the solar neutrino flux, necessitates the knowledge of a precise value of…

Nuclear Experiment · Physics 2009-11-11 Y. Nir-El , G. Haquin , Z. Yungreiss , M. Hass , G. Goldring , S. K. Chamoli , B. S. Nara Singh , S. Lakshmi , U. Koester , N. Champault , A. Dorsival , G. Georgiev , V. N. Fedoseyev , B. A. Marsh , D. Schumann , G. Heidenreich , S. Teichmann

Photon-neutrino interactions

The cross sections for the processes \gamma \nu --> \gamma\gamma \nu, \gamma\gamma -->\gamma\nu\bar{\nu} and \nu\bar{\nu} -->\gamma\gamma\gamma are calculated with the aid of an effective Lagrangian derived from the Standard model. These…

High Energy Physics - Phenomenology · Physics 2009-10-30 Duane A. Dicus , Wayne W. Repko

Study of the $\eta-^7Be$ Interaction Near Threshold in $p-^6Li$ Fusion

We present a calculation for $\eta$ production in the $p-^6Li$ fusion near threshold including the $\eta-^7Be$ final state interaction (FSI). We consider the $^6Li$ and $^7Be$ nuclei as $\alpha-d$ and $\alpha-^3He$ clusters respectively.…

Nuclear Theory · Physics 2009-08-03 N. J. Upadhyay , N. G. Kelkar , K. P. Khemchandani , B. K. Jain

Activation cross section measurement of the 14N(p,gamma)15O astrophysical key reaction

14N(p,gamma)15O is one of the key reactions of nuclear astrophysics playing a role in various stellar processes and influencing energy generation of stars, stellar evolution and nucleosynthesis. For a reliable reaction rate calculation the…

Nuclear Experiment · Physics 2022-02-16 Gy. Gyürky , Z. Halász , G. G. Kiss , T. Szücs , Fülöp

Measurement of the Cross Section for the Reaction $\gamma p \to \jpsi~p$ with the ZEUS Detector at HERA

This paper reports the cross section measurements for the process ep $\rightarrow$ e~\jpsi~p for $Q^2 < 4$ GeV$^2$ at $\sqrt s = 296$ GeV, based on an integrated luminosity of about 0.5~pb$^{-1}$, using the ZEUS detector. The \jpsi~was…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration

Activation cross sections of \alpha-induced reactions on $^{nat}$Zn for Ge and Ga production

The production cross sections of $^{68,69}$Ge and $^{66,67}$Ga by \alpha-induced reactions on $^{nat}$Zn have been measured using the stacked-foil activation method and off-line \gamma-ray spectrometry from their threshold energies to 50.7…

Nuclear Experiment · Physics 2018-09-20 Masayuki Aikawa , Moemi Saito , Shuichiro Ebata , Yukiko Komori , Hiromitsu Haba

Astrophysical analysis of the measurement of (alpha,gamma) and (alpha,n) cross sections of 169Tm

Reaction cross sections of 169Tm(alpha,gamma)173Lu and 169Tm(alpha,n)172Lu have been measured in the energy range 12.6<=E_alpha<=17.5 MeV and 11.5<=E_alpha<=17.5 MeV, respectively, using the recently introduced method of combining…

Nuclear Theory · Physics 2012-07-06 T. Rauscher , G. G. Kiss , T. Scücs , Zs. Fülöp , C. Fröhlich , Gy. Gyürky , Z. Halász , Zs. Kertész , E. Somorjai

Inclusive 2H(3He,t) reaction at 2 GeV

The inclusive 2H(3He,t) reaction has been studied at 2 GeV for energy transfers up to 500 MeV and scattering angles from 0.25 up to 4 degrees. Data are well reproduced by a model based on a coupled-channel approach for describing the NN and…

Nuclear Experiment · Physics 2019-08-15 B. Ramstein , C. A. Mosbacher , D. Bachelier , I. Berquist , M. Boivin , J. L. Boyard , A. Brockstedt , L. Carlén , R. Dahl , P. Ekström , C. Ellegaard , C. Gaarde , T. Hennino , J. C. Jourdain , C. Goodman , J. S. Larsen , P. Radvanyi , M. Roy-Stephan

First Proton-Induced Cross Sections on a Stored Rare Ion Beam: Measurement of 118Te(p,{\gamma}) for Explosive Nucleosynthesis

We present the first nuclear cross-section measurements of (p,{\gamma}) and (p,n) reactions on 118Te at energies relevant for the {\gamma}-process nucleosynthesis. Absolute cross-section values for center-of-mass energies of 6, 7 and 10 MeV…

Nuclear Experiment · Physics 2025-10-13 F. Dellmann , J. Glorius , Yu. A. Litvinov , R. Reifarth , L. Varga , M. Aliotta , F. Amjad , K. Blaum , L. Bott , C. Brandau , B. Brückner , C. G. Bruno , R. -J. Chen , T. Davinson , T. Dickel , I. Dillmann , D. Dmytriev , P. Erbacher , O. Forstner , D. Freire-Fernández , H. Geissel , K. Göbel , C. J. Griffin , R. E. Grisenti , A. Gumberidze , E. Haettner , S. Hagmann , T. Heftrich , M. Heil , R. Heß , P. -M. Hillenbrand , C. Hornung , R. Joseph , B. Jurado , E. Kazanseva , K. Khasawneh , R. Knöbel , D. Kostyleva , C. Kozhuharov , I. Kulikov , N. Kuzminchuk , D. Kurtulgil , C. Langer , G. Leckenby , C. Lederer-Woods , M. Lestinsky , S. Litvinov , B. Löher , B. Lorentz , E. Lorenz , J. Marsh , E. Menz , T. Morgenroth , I. Mukha , N. Petridis , U. Popp , A. Psaltis , S. Purushothaman , E. Rocco , P. Roy , M. S. Sanjari , C. Scheidenberger , M. Sguazzin , R. S. Sidhu , U. Spillmann , M. Steck , T. Stöhlker , A. Surzhykov , J. A. Swartz , Y. Tanaka , H. Törnqvist , D. Vescovi , M. Volknandt , H. Weick , M. Weigand , P. J. Woods , T. Yamaguchi , J. Zhao

Nuclear physics input for solar models

We discuss microscopic cluster model descriptions of two solar nuclear reactions, Be7(p,gamma)B8 and He3(He3,2p)He4. The low-energy reaction cross section of Be7(p,gamma)B8, which determines the high-energy solar neutrino flux, is…

Nuclear Theory · Physics 2007-05-23 Attila Csoto