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RESEARCH PRODUCT

Measurement of the Lifetime of Neutral Charmed Mesons

Y. A. AlexandrovB. Monteleoni-confortoG. VanderhaegheChu TsaiJ. MartinezE. HigonJ. LoryG. Diambrini-palazziA. MarchionniA. M. CartacciM. I. AdamovichM. DameriA. ContiE. VillarS. TentidoR. GessaroliBianca OsculatiL. N. ShtarkovB. WillotN. A. SalmanovaA. Quareni-vignudelliM. A. SanchisV. G. LarionivaF. ViaggiV. CastilloR. LlosaM. G. DaglianaF. SenentS. G. GerassimovN. G. ManjeleyG. TomasiniA. RuizA. ForinoG. I. OrlovaR. NiembroS. P. KharlamovM. M. ChernyavskiG. Di CaporiaccoM. I. TretyakovaD. SchuneL. BravoG. ParriniK. M. Romanovskaya

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsMeson010308 nuclear & particles physics0103 physical sciencesEmulsionFísica010306 general physics01 natural sciencesSample (graphics)Particle Physics - Experiment

description

Abstract The lifetime of neutral charmed particles photoproduced in emulsion has been measured. The lifetime value presented here was obtained from a sample of 22D 0 mesons, 18 of which have their charmed partner seen in emulsion. The sample is essentially background-free. The result obtained is τ D 0 =(2.11 +1.21 -0.63 )×10 13 s The D 0 mass derived from 8 3C events is m D 0 = 1856 ± 36 MeV/ c 2 .

yearjournalcountryeditionlanguage
1984-01-01
10.1016/0370-2693(84)91061-xhttp://hdl.handle.net/10550/43902