Analysis of the Lambda p Final State Interaction in the Reaction p+p->K^+(Lambda p)

The missing mass spectrum measured in high resolution studies of the reaction pp -> K^+X is analyzed with respect to the strong final state interaction near the Lambda p production threshold. The observed spectrum can be described by factorizing the reaction amplitude in terms of a production amplitude and a final state scattering amplitude. Parametrizing the Lambda p final state interaction in terms of the inverse Jost function allows a direct extraction of the low-energy phase-equivalent potential parameters. Constraints on the singlet and triplet scattering lengths and effective ranges are deduced in a simultaneous fit of the Lambda p invariant mass spectrum and the total cross section data of the free Lambda p scattering using the effective range approximation.Comment: 9 pages,6 figures, 2 table

Inclusive omega photoproduction off nuclei

We investigate inclusive omega photoproduction off complex nuclei, concentrating on the feasibility to examine a possible in-medium change of the omega meson properties by observing the pi^0 gamma invariant mass spectrum. The simulations are performed by means of a BUU transport model including a full coupled-channel treatment of the final state interactions. In-medium changes of the omega spectral density are found to yield a moderate modification of the observables as compared to the situation in free space. Also the effects of a momentum dependence of the strong omega potential are discussed.Comment: 19 pages, 12 figures, minor corrections, accepted for publication in EPJ

Reconclining phi radiative decays with other data for a0(980), fo(980), pi-pi -> KK and pi-pi -> eta-eta

Data for phi -> gamma (eta-pizero) are analysed using the KK loop model and compared with parameters of a0(980) derived from Crystal Barrel data. The eta-pi mass spectrum agrees closely and the absolute normalisation lies just within errors. However, BES parameters for fo(980) predict a normalisation for phi -> gamma (pizero-pizero) at least a factor 2 lower than is observed. This discrepancy may be eliminated by including constructive interference between fo(980) and sigma. The magnitude required for sigma -> KK is consistent with data on pi-pi -> KK. A dispersion relation analysis by Buttiker, Descotes-Genon and Moussallam of pi-pi -> KK leads to a similar conclusion. Data on pi-pi -> eta-eta also require decays of sigma to eta-eta. Four sets of pi-pi -> KK data all require a small but definite fo(1370) signal.Comment: 21 pages, 11 figures, Small rearrangement of reference

Study on The Effect of Social Support And QOL in The Disabled People Living at Home : Part 1

J市とY町に居住する在宅要介護者とその介護者を対象に、看護ニードと介護状況の実態、さらに社会的サポートが要介護者と家族のQOLに与える効果を明らかにすることを目的として調査を実施し、在宅要介護者本人のアンケートと、介護者から回答してもらったサービスの利用状況を中心に分析をおこなった。それにより、Y町ではJ市に比べて公的サービスが活用され、在宅要介護者、介護者にこれらのサービスが評価されていたこと、さらにY町ではADLがいい状態で保たれており、J市においてももっと社会的サポートを受けることでADLが改善し、寝たきりにならずにすむ人も増えるのではないかということが推測された。We studied the disabled people at home and their families living in J-city and Y-town to clarify the actual condition of care needs and quality of life (QOL) of patient and their families. In this study we analyzed a questionnaire for the disabled people and a result their families answered about the use of public services. It was speculated as follows: 1) Public services are used in Y-town morethan J-city. 2) These services are appreciated in Y-town. 3) Activities of daily living (ADL) are kept in a right condition in Y-town more than J-city. 4) ADL are improved and the bed-bound peoples diminish by appropriate use of the social supports in J-city.departmental bulletin pape

Acupuncture improved lipid metabolism by regulating intestinal absorption in mice

金沢医科大学博士（医学）2020thesi

Secure communication protocol design for buffer-aided relaying systems

公立はこだて未来大学博士（システム情報科学）指導教員：姜　暁鴻doctoral thesi

Studies on wild bees visiting alfalfa flowers in the Tokachi district

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