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A search for proton decay into $e^+/\mu^+$ and a $\eta$ meson has been performed using data from a 0.373 Mton$\cdot$year exposure (6050.3 live days) of Super-Kamiokande. Compared to previous searches this work introduces an improved model…

High Energy Physics - Experiment · Physics 2024-10-01 Kamiokande Collaboration , N. Taniuchi , K. Abe , S. Abe , Y. Asaoka , C. Bronner , M. Harada , Y. Hayato , K. Hiraide , K. Hosokawa , K. Ieki , M. Ikeda , J. Kameda , Y. Kanemura , R. Kaneshima , Y. Kashiwagi , Y. Kataoka , S. Miki , S. Mine , M. Miura , S. Moriyama , M. Nakahata , S. Nakayama , Y. Noguchi , G. Pronost , K. Okamoto , K. Sato , H. Sekiya , H. Shiba , K. Shimizu , M. Shiozawa , Y. Sonoda , Y. Suzuki , A. Takeda , Y. Takemoto , A. Takenaka , H. Tanaka , S. Watanabe , T. Yano , T. Kajita , K. Okumura , T. Tashiro , T. Tomiya , X. Wang , S. Yoshida , G. D. Megias , P. Fernandez , L. Labarga , N. Ospina , B. Zaldivar , B. W. Pointon , E. Kearns , J. Mirabito , J. L. Raaf , L. Wan , T. Wester , J. Bian , N. J. Griskevich , W. R. Kropp , S. Locke , M. B. Smy , H. W. Sobel , V. Takhistov , A. Yankelevich , J. Hill , M. C. Jang , J. Y. Kim , S. H. Lee , I. T. Lim , D. H. Moon , R. G. Park , B. S. Yang , B. Bodur , K. Scholberg , C. W. Walter , A. Beauchêne , L. Bernard , A. Coffani , O. Drapier , S. El Hedri , A. Giampaolo , Th. A. Mueller , A. D. Santos , P. Paganini , R. Rogly , T. Nakamura , J. S. Jang , L. N. Machado , J. G. Learned , K. Choi , N. Iovine , S. Cao , L. H. V. Anthony , D. Martin , N. W. Prouse , M. Scott , A. A. Sztuc , Y. Uchida , V. Berardi , N. F. Calabria , M. G. Catanesi , E. Radicioni , A. Langella , G. De Rosa , G. Collazuol , M. Feltre , F. Iacob , M. Lamoureux , M. Mattiazzi , L. Ludovici , M. Gonin , L. Périssé , B. Quilain , C. Fujisawa , S. Horiuchi , M. Kobayashi , Y. M. Liu , Y. Maekawa , Y. Nishimura , R. Okazaki , R. Akutsu , M. Friend , T. Hasegawa , T. Ishida , T. Kobayashi , M. Jakkapu , T. Matsubara , T. Nakadaira , K. Nakamura , Y. Oyama , A. Portocarrero Yrey , K. Sakashita , T. Sekiguchi , T. Tsukamoto , N. Bhuiyan , T. Boschi , G. T. Burton , F. Di Lodovico , J. Gao , A. Goldsack , T. Katori , J. Migenda , R. M. Ramsden , M. Taani , Z. Xie , S. Zsoldos , Y. Kotsar , H. Ozaki , A. T. Suzuki , Y. Takagi , Y. Takeuchi , S. Yamamoto , H. Zhong , J. Feng , L. Feng , S. Han , J. R. Hu , Z. Hu , M. Kawaue , T. Kikawa , M. Mori , T. Nakaya , R. A. Wendell , K. Yasutome , S. J. Jenkins , N. McCauley , P. Mehta , A. Tarrant , M. J. Wilking , Y. Fukuda , Y. Itow , H. Menjo , K. Ninomiya , Y. Yoshioka , J. Lagoda , M. Mandal , P. Mijakowski , Y. S. Prabhu , J. Zalipska , M. Jia , J. Jiang , C. K. Jung , W. Shi , C. Yanagisawa , Y. Hino , H. Ishino , S. Ito , H. Kitagawa , Y. Koshio , W. Ma , F. Nakanishi , S. Sakai , T. Tada , T. Tano , T. Ishizuka , G. Barr , D. Barrow , L. Cook , S. Samani , D. Wark , A. Holin , F. Nova , S. Jung , J. Y. Yang , J. Yoo , J. E. P. Fannon , L. Kneale , M. Malek , J. M. McElwee , O. Stone , P. Stowell , M. D. Thiesse , L. F. Thompson , S. T. Wilson , H. Okazawa , S. M. Lakshmi , S. B. Kim , E. Kwon , M. W. Lee , J. W. Seo , I. Yu , A. K. Ichikawa , K. D. Nakamura , S. Tairafune , K. Nishijima , M. Koshiba , A. Eguchi , S. Goto , K. Iwamoto , Y. Mizuno , T. Muro , K. Nakagiri , Y. Nakajima , S. Shima , E. Watanabe , M. Yokoyama , P. de Perio , S. Fujita , C. Jesús-Valls , K. Martens , Ll. Marti , K. M. Tsui , M. R. Vagins , J. Xia , S. Izumiyama , M. Kuze , R. Matsumoto , K. Terada , R. Asaka , M. Inomoto , M. Ishitsuka , H. Ito , T. Kinoshita , Y. Ommura , N. Shigeta , M. Shinoki , T. Suganuma , K. Yamauchi , T. Yoshida , Y. Nakano , J. F. Martin , H. A. Tanaka , T. Towstego , R. Gaur , V. Gousy-Leblanc , M. Hartz , A. Konaka , X. Li , S. Chen , Y. Wu , B. D. Xu , A. Q. Zhang , B. Zhang , M. Posiadala-Zezula , S. B. Boyd , R. Edwards , D. Hadley , M. Nicholson , M. O'Flaherty , B. Richards , A. Ali , B. Jamieson , S. Amanai , A. Minamino , G. Pintaudi , S. Sano , R. Sasaki , R. Shibayama , R. Shimamura , S. Suzuki , K. Wada

The $\beta$-decay properties of the N=Z nuclei $^{96}$Cd, $^{98}$In and $^{100}$Sn have been studied. These nuclei were produced at the National Superconducting Cyclotron Laboratory (NSCL) by fragmenting a 120 MeV/nucleon $^{112}$Sn primary…

Nuclear Experiment · Physics 2009-11-13 D. Bazin

Relatively low energy and very enhanced alpha-particle groups have been observed in various actinide fractions produced via secondary reactions in a CERN W target which had been irradiated with 24-GeV protons. In particular, 5.14, 5.27 and…

Nuclear Experiment · Physics 2009-04-13 A. Marinov , S. Gelberg , D. Kolb , J. L. Weil

Proton beams with up to 100 pC bunch charge, 0.48 MeV cut-off energy and divergence as low as a $3^{\circ}$ were generated from solid targets at kHz repetition rate by a few-mJ femtosecond laser under controlled plasma conditions. The beam…

New data on the production of protons, anti-protons and neutrons in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The…

In the given paper the total inelastic cross-sections of the reactions of protons and deuterons on nuclear targets of enriched tin isotopes were compared. The factorization of cross-sections of reactions was discussed. Furthermore, the…

Nuclear Experiment · Physics 2013-02-08 A. R. Balabekyan , N. A. Demekhina , V. M. Zhamkochyan , G. S. Karapetyan

The analysing power measurements for the p(pol)p -> pp eta reaction studied in this dissertation are used in the determination of the reaction mechanism of the eta meson production in nucleon-nucleon collisions. Measurements have been…

Nuclear Experiment · Physics 2007-05-23 R. Czyzykiewicz

We investigate the effects of newly measured beta-decay half-lives on r-process nucleosynthesis. These new rates were determined by recent experiments at the radioactive isotope beam factory facility in the RIKEN Nishina Center. We adopt an…

Solar and Stellar Astrophysics · Physics 2012-04-05 Nobuya Nishimura , Toshitaka Kajino , Grant J. Mathews , Shunji Nishimura , Toshio Suzuki

The half-lives of proton radioactivity of proton emitters are investigated theoretically by using KDE0v1 Skyrme interaction. The total barrier potential in the proton radioactive nuclei is calculated as the sum of the nuclear, Coulomb and…

Nuclear Theory · Physics 2020-07-07 K. Madhuri , D. N. Basu , T. R. Routray , S. P. Pattnaik

We study the production of radioisotopes for nuclear medicine in $(\gamma,x{\rm n}+y{\rm p})$ photonuclear reactions or ($\gamma,\gamma'$) photoexcitation reactions with high flux [($10^{13}-10^{15}$)$\gamma$/s], small diameter $\sim (100…

Medical Physics · Physics 2015-05-19 D. Habs , U. Köster

We undertake a simultaneous partial wave analysis to proton-proton and neutron-proton scattering data below pion production threshold up to LAB energies of 350MeV. We represent the interaction as a sum of delta-shells in configuration space…

Nuclear Theory · Physics 2013-08-14 R. Navarro Perez , J. E. Amaro , E. Ruiz Arriola

New kind of positron sources for future linear colliders, where the converter is a tungsten crystal oriented on the <111> axis, has been studied at CERN in the WA103 experiment. In such sources the photons which create the $e^+ e^-$ pairs…

Polarisation observables constitute a powerful tool for establishing the production mechanism of the eta meson and for infering the presence of higher partial waves in the final system. Measurements of the proton analysing power for the…

In order to dissipate long-lived radioactive waste, not only high ux proton accelerator but also electron linac have been proposed. A proton accelerator directly induces nuclear fission and mutation. On the other hand, electron beam has two…

Accelerator Physics · Physics 2021-04-20 Y. Kawashima , T. Asaka , H. Ego , M. Hara

The LANSCE Isotope Production Facility (IPF) utilizes a 100-MeV proton beam with average power of 23 kW for isotope production in the fields of medicine, nuclear physics, national security, environmental science and industry. Typical…

Accelerator Physics · Physics 2020-02-26 Yuri K. Batygin

A proton irradiation site for silicon detectors has been developed and commissioned at the Bonn Isochronous Cyclotron. The accelerator provides 14 MeV proton beams of up to 1 $\mu$A at beam widths of a few mm to the setup. Devices Under…

Instrumentation and Detectors · Physics 2024-05-07 Pascal Wolf , Dennis Sauerland , Reinhard Beck , Jochen Dingfelder

The {\beta} decays of very neutron-rich nuclides in the Co-Zn region were studied experimentally at the National Superconducting Cyclotron Laboratory using the NSCL {\beta}-counting station in conjunction with the neutron detector NERO. We…

Production cross sections for neutron-rich nuclei from the fragmentation of a 82Se beam at 139 MeV/u were measured. The longitudinal momentum distributions of 122 neutron-rich isotopes of elements $11 \le Z \le 32$ were determined by…

The cross sections of the nuclear reactions induced by neutrons at $E_n$= 14.6 MeV on the isotopes of Dy, Er, Yb with emission of neutrons, proton and alpha-particle are studied by the use of new experimental data and different theoretical…

Threshold activation reaction rates in 12C, 19F, 27Al, 59Co, 63Cu, 65Cu, 64Zn, 93Nb, 115In, 169Tm, 181Ta, 197Au, and 209Bi experimental samples placed along the axis inside and outside the 0.8 GeV proton-irradiated 92-cm thick W-Na and 4-cm…