المؤلفون: Ponnath, L., Aumann, T., Bertulani, C.A., Gernhäuser, R., Heil, M., Almusidi, Tahani, Alvarez-Pol, H., Atar, L., Atkins, Liam, Ayyad, Y., Benlliure, J., Boretzky, K., Borge, M., Bott, Lukas, Bruni, G., Brückner, Benjamin, Cabanelas, P., Caesar, C., Casarejos, E., Cederkall, J., Corsi, A., Cortina-Gil, D., Dueñas, J. A., Duer, M., Elekes, Z., Escribano Rodriguez, S., Fabbietti, L., Falduto, Ashton, Feijoo, M., Feijoo-Fontán, M., Fonseca, L. M., Frotscher, A., Galaviz, D., Galiana, E., García-Jiménez, G., Gasparic, I., Geraci, E., Gillibert, A., Gnoffo, B., González Caamaño, D., Graña-González, A., Gobel, K., Hartig, A. L., Heinz, Andreas, 1967, Hensel, Thomas, Holl, M., Horvat, A., Jedele, A., Jelavić Malenica, D., Jenegger, T., Johansson, Håkan T, 1977, Jonson, Björn, 1941, Kalantar-Nayestanaki, N., Kelić-Heil, A., Kiselev, O., Klenze, P., Kresan, Dmytro, Kröll, T., Kudaibergenova, E., Kurtulgil, Deniz, Körper, D., Labiche, M., Langer, C., Lihtar, I., Litvinov, Y., Loher, B., Mayer, J., Murillo-Morales, S., Nacher, E., Nilsson, Thomas, 1965, Obertelli, A., Panin, V., Park, J., Paschalis, S., Perea, A., Petri, M., Pirrone, S., Pohl, T., Reifarth, R., Rhee, H. B., Rodriguez-Sanchez, J. L., Rose, L., Rossi, D., Russotto, P., Savran, D., Scheit, H., Simon, H., Storck-Dutine, S., Stott, A., Sürder, Christian, Taniuchi, R., Tengblad, O., Teubig, P., Trache, L., Trimarchi, M., Törnqvist, Hans, 1985, Varga, L., Wagner, V., Wamers, F.

المصدر: Atomkärnor som knappt existerar Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 855

الوصف: The accuracy of reaction theories used to extract properties of exotic nuclei from scattering experiments is often unknown or not quantified, but of utmost importance when, e.g., constraining the equation of state of asymmetric nuclear matter from observables as the neutron-skin thickness. In order to test the Glauber multiple-scattering model, the total interaction cross section of [Formula presented] on carbon targets was measured at initial beam energies of 400, 550, 650, 800, and 1000 MeV/nucleon. The measurements were performed during the first experiment of the newly constructed R3B (Reaction with Relativistic Radioactive Beams) experiment after the start of FAIR Phase-0 at the GSI/FAIR facility with beam energies of 400, 550, 650, 800, and 1000 MeV/nucleon. The combination of the large-acceptance dipole magnet GLAD and a newly designed and highly efficient Time-of-Flight detector enabled a precise transmission measurement with several target thicknesses for each initial beam energy with an experimental uncertainty of ±0.4%. A comparison with the Glauber model revealed a discrepancy of around 3.1% at higher beam energies, which will serve as a crucial baseline for the model-dependent uncertainty in future fragmentation experiments.

وصف الملف: electronic

الوصول الحر: https://research.chalmers.se/publication/541548Test
https://research.chalmers.se/publication/541548/file/541548_Fulltext.pdfTest

المؤلفون: Feijoo-Fontán M., Kudaibergenova E., Liblar I., Gasparic I., Horvat A., Rodriguez-Sanchez J.L., Panin V., Alvarez-Pol H., Atar L., Aumann T., Benlliure J., Boretzky K., Borge M.J.G., Bott L.T., Caesar C., Casarejos E., Cederkall J., Chatillon A., Cortina-Gil D., Filippo E., Dickel T., Duer M., Falduto A., Galaviz D., García-Jiménez G., Ge Z., Geraci E.I., Gernhäuser R., Gnoffo B., Graña-González A., Göbel K., Haettner E., Hartig A.L., Heil M., Heinz A., Hensel T., Holl M., Hornung C., Jedele A., Jelavic-Malenica D., Jenegger T., Ji L., Johansson H.T., Kalantar-Nayestanaki N., Kazantseva E., Kelic-Heil A., Kiselev O.A., Klenze P., Knoebel R., Körper D., Kröll T., Löher B., Martorana N.S., Milhomens da Fonseca L., Morfouace P., Mukha I., Murillo-Morales S., Nácher E., Nociforo C., Obertelli A., Paschalis S., Perea A., Petri M., Pietri S., Pirrone S., Ponnath L., Rhee H.B., Rose L., Rossi D.M., Russotto P., Savran D., Scheidenberger C., Simon H., Simon J.P., Storck-Dunite S., Stott A., Sun Y., Symochko D., Sürder C., Taïeb J., Taniuchi R., Tengblad O., Törnqvist H.T., Velardita S., Wamers F., Weick H., Zhao J.

المصدر: EPJ Web of Conferences, Vol 290, p 02001 (2023)

مصطلحات موضوعية: Physics, QC1-999

الوصف: The experimental data collected during the S515 experiment performed by the R3B collaboration at GSI/FAIR represent a great opportunity to investigate nucleon knockout reactions of exotic nuclei in the region of Sn using complete kinematics measurements. These cross sections can be used in the future to investigate the quenching in the knockout of the minority species (neutrons or protons) in nuclei far from stability. Some of the arguments put forward are the underestimation of the knockout of deeply bound nucleons, final state interactions or the role of short-range correlations (SRC). Recently, several works based on inclusive measurements have shown that these SRCs could reduce the single nucleon knockout cross sections by around 50%, depending on the neutron excess (N/Z) of the initial projectile. The S515 data can help us to go further in this investigation because it allows to correlate the knockout cross sections of one, two or more nucleons with the number of protons and neutrons emitted from the target and which can be detected by the CALIFA and NeuLAND detectors, respectively, and perform complete kinematical studies on the nature of the event (SRC, evaporation, emission of clusters, final-state interactions.). Here the results obtained for the charge distribution of reaction residues are presented, which is one of the first steps of the still on-going analysis.

العلاقة: https://www.epj-conferences.org/articles/epjconf/pdf/2023/16/epjconf_eunpc2023_02001.pdfTest; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/6e243fe72511460494430e199d93b7b8Test

الإتاحة: https://doi.org/10.1051/epjconf/202329002001Test
https://doaj.org/article/6e243fe72511460494430e199d93b7b8Test

المؤلفون: García-Jiménez G., Alvarez-Pol H., Graña-González A., Rodríguez-Sánchez J.L., Benlliure J., Cortina-Gil D., Atar L., Audouin L., Authelet G., Besteiro A., Blanchon G., Boretzky K., Borge M.J.G., Cabanelas P., Casarejos E., Cederkall J., Chatillon A., Corsi A., Feijoo M., De Filippo E., Galaviz D., Gasparic I., Geraci E., Gernhäuser R., Gnoffo B., Heil M., Heinz A., Hensel T., Holl M., Jelavic Malenica D., Jenegger T., Ji L., Johansson H.T., Kiselev O.A., Klenze P., Knyazev A., Körper D., Kröll T., Lithar I., Litvinov Y.A., Löher B., Martorana N. S., Morfouace P., Mücher D., Murillo-Morales S., Obertelli A., Panin V., Park J., Paschalis S., Perea A., Petri M., Pirrone S., Ponnath L., Revel A., Rhee H., Rose L., Rossi D.M., Russotto P., Simon H., Stott A., Sun Y., Sürder C., Taïeb J., Taniuchi R., Tengblad O., Törnqvist H.T., Trimarchi M., Velardita S., Vesic J., Voss B.

المصدر: EPJ Web of Conferences, Vol 290, p 02009 (2023)

مصطلحات موضوعية: Physics, QC1-999

الوصف: A new experimental fission approach is presented in the context of the R3B (Reactions with Relativistic Radioactive Beams) collaboration, at the GSI/FAIR facility, in which knockout reactions in inverse kinematics are used to induce fission of 238U that will allow to characterise the excitation energy of the fission process and all the fission products. The CALIFA (CALorimeter for In-Flight detection of γ-rays and high energy charged pArticles) calorimeter, a key part of the R3B set-up, is used to reconstruct the momenta of the two protons from the (p, 2p) reactions. Preliminary results show that kinematic variables and first estimates for nucleon-removal cross sections are well reconstructed and in good agreement with other experimental measurements.

العلاقة: https://www.epj-conferences.org/articles/epjconf/pdf/2023/16/epjconf_eunpc2023_02009.pdfTest; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/351e34c8e6c142eca0df711ca8ed8b71Test

الإتاحة: https://doi.org/10.1051/epjconf/202329002009Test
https://doaj.org/article/351e34c8e6c142eca0df711ca8ed8b71Test

المؤلفون: Graña-González A., Rodríguez-Sánchez J.L., Benlliure J., García-Jiménez G., Alvarez-Pol H., Cortina-Gil D., Atar L., Audouin L., Authelet G., Besteiro A., Blanchon G., Boretzky K., Borge M.J.G., Cabanelas P., Casarejos E., Cederkall J., Chatillon A., Corsi A., Feijoo M., De Filippo E., Galaviz D., Gasparic I., Geraci E., Gernhäuser R., Gnoffo B., Heil M., Heinz A., Hensel T., Holl M., Jelavic Malenica D., Jenegger T., Ji L., Johansson H., Kiselev O.A., Klenze P., Knyazev A., Körper D., Kröll T., Lihtar I., Litvinov Y., Löher B., Martorana N.S., Morfouace P., Mücher D., Murillo Morales S., Obertelli A., Panin V., Park J., Paschalis S., Perea A., Petri M., Pirrone S., Ponnath L., Revel A., Rhee H.-B., Rose L., Rossi D.M., Russotto P., Simon H., Stott A., Sun Y., Sürder C., Taïeb J., Taniuchi R., Tengblad O., Törnqvist H.T., Trimarchi M., Velardita S., Vesic J., Voss B.

المصدر: EPJ Web of Conferences, Vol 290, p 02015 (2023)

مصطلحات موضوعية: Physics, QC1-999

الوصف: Nuclear fission is a complex dynamical process, whose description involves the coupling between intrinsic and collective degrees of freedom, as well as different quantum-mechanical phenomena. For this reason, to this day it still lacks a satisfactory and complete microscopic description. In addition to the importance of describing fission itself, studies of the r-process in astrophysics depend on fission observables to constrain the theoretical models that explain the isotopic abundances in the Universe. To improve on the existing data, fission reactions of heavy nuclei in inverse kinematics are produced in quasi-free (p,2p) scattering reactions, which induce fission through particle-hole excitations that can range from few to tens of MeV. In order to study the evolution of the fission yields with temperature, the excitation energy of the fissioning system must be reconstructed, which is possible by measuring the four-momenta of the two outgoing protons. Performing this kind of experiment requires a complex experimental setup, providing full isotopic identification of both fission fragments and an accurate measurement of the momenta of the two outgoing protons. This was realized recently at the GSI/FAIR facility and some of the results obtained for the charge distributions are presented in this work.

العلاقة: https://www.epj-conferences.org/articles/epjconf/pdf/2023/16/epjconf_eunpc2023_02015.pdfTest; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/8f88911bca4c44f0a2daef26c51c43b4Test

الإتاحة: https://doi.org/10.1051/epjconf/202329002015Test
https://doaj.org/article/8f88911bca4c44f0a2daef26c51c43b4Test

المؤلفون: Oliva A. A., Tumino A., Soic N., Prajapati P. M., Acosta L., Alba R., Barba F., Cherubini S., D’Agata G., Dell’Aquila D., Di Pietro A., Fernandez J.P., Figuera P., Galaviz Redondo D., Guardo L., Gulino M., Hammache F., Jelavic Malenica D., Kiliç A.I., La Cognata M., La Commara M., Lamia L., Lattuada D., Maiolino C., Manicò G., Mazzocco M., Milin M., Nanru Ma, Nurmukhanbetova A., Nurkic D., Palmerini S., Parascandolo T., Pierroutsakou D., Pizzone R.G., Popocovski R., Rapisarda G.G., Romano S., Santonocito D., Sergi M.L., Shotter A., Spartà R., Spiridon A., Trache L., Vukman N., Yamaguchi H.

المصدر: EPJ Web of Conferences, Vol 279, p 11015 (2023)

مصطلحات موضوعية: Physics, QC1-999

الوصف: 12C +12 C is the main reaction during core and shell carbon burning in massive stars, however, at temperatures higher than 109K when most of the carbon is depleted and its abundance is lower than 16O, the 12C +16 O fusion can also become relevant. Moreover, 12C +16 O reaction can ignite also in the scenario of explosive carbon burning. The astrophysical energy region of interest thus ranges from 3 to 7.2 MeV in the center-of-mass frame. There are various measurements of the cross-section available in the literature, however, they all stop around 4 MeV, making extrapolation necessary at lower energies. To try to solve this uncertainty and corroborate direct measurement the Trojan Horse Method was applied to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 16O(12C, α)24Mg and 16O(12C, p)27Al reactions.

العلاقة: https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_11015.pdfTest; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/5b9ac92064e548e5934bc79d9585bcb4Test

الإتاحة: https://doi.org/10.1051/epjconf/202327911015Test
https://doaj.org/article/5b9ac92064e548e5934bc79d9585bcb4Test

المؤلفون: Oliva A.A., Tumino A., Soic N., Prajapati M.P., Acosta L., Alba R., Barba F., Cherubini S., D’Agata G., Dell’Aquila D., Di Pietro A., Fernandez P.J., Figuera P., Galaviz Redondo D., Guardo L., Gulino M., Hammache F., Jelavic Malenica D., Kiliç A.I., La Cognata M., La Commara M., Lamia L., Lattuada D., Maiolino C., Manicò G., Mazzocco M., Milin M., Nanru Ma, Nurmukhanbetova A., Nurkic D., Palmerini S., Parascandolo T., Pierroutsakou D., Pizzone R.G., Popocovski R., Rapisarda G.G., Romano S., Santonocito D., Sergi M.L., Shotter A., Spartà R., Spiridon A., Trache L., Vukman N., Yamaguchi H.

المصدر: EPJ Web of Conferences, Vol 275, p 02010 (2023)

مصطلحات موضوعية: Physics, QC1-999

الوصف: The carbon-burning process in massive stars mainly occurs via the 12C +12 C. However, at temperatures higher than 109K and considering the increased abundance of 16O produced during the later stages of the heliumburning,the 12C+16O fusion can also become relevant. Moreover, 12C+16O also plays a role in the scenario of explosive carbon burning. Thus, the astrophysical energy region of interest ranges from 3 to 7.2 MeV in the center-of-mass frame. However, the various measurements of the cross-section available in the literature stop around 4 MeV, making extrapolation necessary. To solve this uncertainty and corroborate direct measurement we applied the Trojan Horse Method to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 12C(16O, α)24Mg and 12C(16O, p)27Al reactions in their entire energy region of astrophysical interest. In this contribution, after briefly describing the method used, the experiment and the preliminary phases of the data analysis will be presented and discussed.

العلاقة: https://www.epj-conferences.org/articles/epjconf/pdf/2023/01/epjconf_enas112023_02010.pdfTest; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/fb801b18186444e28ca2d5221be2d83cTest

الإتاحة: https://doi.org/10.1051/epjconf/202327502010Test
https://doaj.org/article/fb801b18186444e28ca2d5221be2d83cTest

المؤلفون: Corradi, L., Szilner, S., Pollarolo, G., Mijatović, T., Montanari, D., Fioretto, E., Goasduff, A., Jelavić Malenica, D., Montagnoli, G., Stefanini, A. M.

المساهمون: Corradi, L., Szilner, S., Pollarolo, G., Mijatović, T., Montanari, D., Fioretto, E., Goasduff, A., Jelavić Malenica, D., Montagnoli, G., Stefanini, A. M.

مصطلحات موضوعية: Sub-barrier transfer reactions Proton-proton correlations Magnetic spectrometers

الوصف: One and two proton transfer channels have been measured in 116 Sn+ 60 Ni with the magnetic spectrometer PRISMA by making an excitation function at several bombarding energies, from above to well below the Coulomb barrier. The total kinetic energy loss distributions show the predominance of quasi-elastic processes in the sub-barrier regime. The data have been compared with calculations performed with the GRAZING program, based on semiclassical formalism, and in the Distorted Wave Born Approximation (DWBA), which provided a good theoretical description of the extracted transfer probabilities for the one proton transfers. The much larger values of the experimental two proton transfers compared with those evaluated within an independent particle transfer mechanism, indicate the presence of strong proton- proton correlations. The results complement the ones of the previously analyzed one- and two-neutron transfers, providing significant new information on the subject compared to past works.

وصف الملف: STAMPA

العلاقة: info:eu-repo/semantics/altIdentifier/wos/WOS:000880664100009; volume:834; firstpage:137477; numberofpages:5; journal:PHYSICS LETTERS. SECTION B; http://hdl.handle.net/11577/3458092Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85139358676; https://doi.org/10.1016/j.physletb.2022.137477Test

الإتاحة: https://doi.org/10.1016/j.physletb.2022.137477Test
http://hdl.handle.net/11577/3458092Test

المؤلفون: Boretzky, K., Gasparic, I., Heil, M., Mayer, J., Heinz, Andreas Martin, 1967, Caesar, C., Kresan, Dmytro, Simon, H., Törnqvist, Hans, 1985, Körper, D., Alkhazov, G., Atar, L., Aumann, T., Bemmerer, D., Bondarev, S. V., Bott, Lukas, Chakraborty, S., Cherciu, M. I., Chulkov, L. V., Ciobanu, M., Datta, U., De Filippo, E., Douma, C. A., Dreyer, J., Elekes, Z., Enders, J., Galaviz, D., Geraci, E., Gnoffo, B., Gobel, K., Golovtsov, V. L., Gonzalez-Diaz, D., Gruzinsky, N., Heftrich, T., Heggen, Henning, Hehner, J., Hensel, Thomas, Hoemann, E., Holl, M., Horvat, A., Horváth, Ickert, G., Jelavić Malenica, D., Johansson, Håkan T, 1977, Jonson, Björn, 1941, Kahlbow, J., Kalantar-Nayestanaki, N., Kelic-Heil, A., Kempe, M., Koch, K., Kozlenko, N. G., Krivshich, A. G., Kurz, N., Kuznetsov, V., Langer, C., Leifels, Y., Lihtar, I., Loher, B., Machado, J., Martorana, N. S., Miki, K., Nilsson, T., Orischin, E. M., Pagano, E. V., Pirrone, S., Politi, G., Potlog, P. M., Rahaman, A., Reifarth, R., Rigollet, C., Röder, M., Rossi, D., Russotto, P., Savran, D., Scheit, H., Schindler, F., Stach, D., Stan, E., Stomvall Gill, J., Teubig, P., Trimarchi, M., Uvarov, L., Volknandt, Meiko, Volkov, S., Wagner, A., Wagner, V., Wranne, S., Yakorev, D., Zanetti, Lorenzo, Zilges, A., Zuber, K.

المصدر: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1014

مصطلحات موضوعية: Reactions with relativistic radioactive beams, Plastic scintillator array, Multi-neutron detection, High-energy neutron detection

الوصف: NeuLAND (New Large-Area Neutron Detector) is the next-generation neutron detector for the R3B (Reactions with Relativistic Radioactive Beams) experiment at FAIR (Facility for Antiproton and Ion Research). NeuLAND detects neutrons with energies from 100 to 1000 MeV, featuring a high detection efficiency, a high spatial and time resolution, and a large multi-neutron reconstruction efficiency. This is achieved by a highly granular design of organic scintillators: 3000 individual submodules with a size of 5 × 5 × 250 cm3 are arranged in 30 double planes with 100 submodules each, providing an active area of 250 × 250 cm2 and a total depth of 3 m. The spatial resolution due to the granularity together with a time resolution of σt≤ 150 ps ensures high-resolution capabilities. In conjunction with calorimetric properties, a multi-neutron reconstruction efficiency of 50% to 70% for four-neutron events will be achieved, depending on both the emission scenario and the boundary conditions allowed for the reconstruction method. We present in this paper the final design of the detector as well as results from test measurements and simulations on which this design is based.

وصف الملف: electronic

الوصول الحر: https://research.chalmers.se/publication/525624Test
https://research.chalmers.se/publication/525624/file/525624_Fulltext.pdfTest

المؤلفون: Boretzky, Konstanze, Gašparić, I., Alkhazov, G., Atar, Leyla, Aumann, Thomas, Bemmerer, D., Bondarev, S. V., Bott, L. T., Chakraborty, S., Cherciu, M. I., Chulkov, L. V., Ciobanu, M., Heil, M., Datta, U., De Filippo, E., Douma, C. A., Dreyer, J., Elekes, Z., Enders, J., Galaviz, D., Geraci, E., Gnoffo, B., Göbel, K., Mayer, J., Golovtsov, V. L., Gonzalez Diaz, D., Gruzinsky, N., Heftrich, T., Heggen, Henning, Hehner, J., Hensel, T., Hoemann, E., Holl, M., Horvat, A., Heinz, A., Horváth, Á., Ickert, Günter, Jelavić Malenica, D., Johansson, H. T., Jonson, B., Kahlbow, J., Kalantar-Nayestanaki, N., Kelić-Heil, A., Kempe, M., Koch, K., Caesar, Christoph, Kozlenko, N. G., Krivshich, A. G., Kurz, N., Kuznetsov, V., Langer, Christoph, Leifels, Y., Lihtar, I., Löher, B., Machado, J., Martorana, N. S., Kresan, D., Miki, K., Nilsson, T., Orischin, E. M., Pagano, E. V., Pirrone, S., Politi, G., Potlog, P.- M., Rahaman, A., Reifarth, R., Rigollet, C., Simon, H., Röder, M., Rossi, D. M., Russotto, P., Savran, D., Scheit, H., Schindler, F., Stach, D., Stan, E., Stomvall Gill, J., Teubig, P., Törnqvist, H. T., Trimarchi, M., Uvarov, L., Volknandt, M., Volkov, S., Wagner, A., Wagner, V., Wranne, S., Yakorev, D., Zanetti, L., Zilges, A., Körper, D., Zuber, K.

المصدر: Nuclear instruments & methods in physics research / A 1014, 165701 (2021). doi:10.1016/j.nima.2021.165701

مصطلحات موضوعية: info:eu-repo/classification/ddc/530, High-energy neutron detection, Reactions with relativistic radioactive beams, Plastic scintillator array, Multi-neutron detection

جغرافية الموضوع: DE

العلاقة: info:eu-repo/semantics/altIdentifier/issn/1872-9576; info:eu-repo/semantics/altIdentifier/issn/0168-9002; info:eu-repo/semantics/altIdentifier/wos/WOS:000704382900003; https://repository.gsi.de/record/240863Test; https://repository.gsi.de/search?p=id:%22GSI-2021-01055%22Test

الإتاحة: https://doi.org/10.1016/j.nima.2021.165701Test
https://doi.org/10.15120/GSI-2021-01055Test
https://repository.gsi.de/record/240863Test
https://repository.gsi.de/search?p=id:%22GSI-2021-01055%22Test

المؤلفون: Jelavić Malenica, D.¹ (AUTHOR) djelavic@irb.hr, Milin, M.² (AUTHOR), Dell’Aquila, D.³ (AUTHOR), Di Pietro, A.³ (AUTHOR), Figuera, P.³ (AUTHOR), Gašparić, I.¹ (AUTHOR), Mijatović, T.¹ (AUTHOR), Musumarra, A.³ (AUTHOR), Pellegriti, M. G.³ (AUTHOR), Scuderi, V.³ (AUTHOR), Soić, N.¹ (AUTHOR), Szilner, S.¹ (AUTHOR), Torresi, D.³ (AUTHOR), Uroić, M.¹ (AUTHOR)

المصدر: European Physical Journal A -- Hadrons & Nuclei. Oct2023, Vol. 59 Issue 10, p1-9. 9p.

مستخلص: Different excited states of 13 C populated in the 10 B + 10 B reactions at a beam energy of 72.2 MeV were investigated. The study revealed both well-known and new, or infrequently populated states. In particular, the inclusive excitation energy spectra showed the presence of most of the states belonging to the K = 3/2 - rotational band that was proposed by several authors. Furthermore, a possibly new state at E x = 19.0 MeV was strongly populated in the α + 9 Be coincidences. The measured state was found to have a well defined cluster structure. Additionally, so far unobserved α -decay of the two rarely seen high-energy 13 C states at 21.9 and 23.6 MeV is discussed. [ABSTRACT FROM AUTHOR]