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Charmed particles production in pA -interactions at $\surd s = 11.8$ √ s = 11 . 8 GeVстатья
- Авторы: Basiladze S., Bogdanova G., Grishin N., Grishkevich Ya, Ermolov P., Karmanov D., Kozlov V., Kramarenko V., Kubarovsky A., Leflat A., Lyutov S., Merkin M., Orfanitsky S., Popov V., Tikhonova L., Vischnevskaya A., Volkov V., Voronin A., Zotkin S., Zotkin D., Zverev E., SVD Collaboration
- Журнал: European Physical Journal A
- Том: 53
- Номер: 3
- Год издания: 2017
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- DOI: 10.1140/epja/i2017-12230-9
- Аннотация: The results of the SERP-E-184 experiment at the U-70 accelerator (IHEP, Protvino) are presented. Interactions of the 70GeV proton beam with carbon, silicon and lead targets were studied to detect decays of charmed D0D0 , D¯0D¯0 , D+D+ , D−D− mesons and Λ+cΛc+ baryon near their production threshold. Measurements of lifetimes and masses have shown a good agreement with PDG data. The inclusive cross-sections of charm production and their A-dependences have been obtained. The yields of these particles are compared with the theoretical predictions and the data of other experiments. The measured cross-section of the total open charm production ( σtot(cc¯)=7.1±2.3(stat)±1.4(syst)σtot(cc¯)=7.1±2.3(stat)±1.4(syst) μb/nucleon) at the collision c.m. energy √s=11.8√s=11.8 GeV is well above the QCD model predictions. The contributions of different kinds of charmed particles to the total cross-section of the open charm production in proton-nucleus interactions vary with energy.
- Добавил в систему: Меркин Михаил Моисеевич