Published 1975 | Version v1
Report Open

Search of metastable states with lifetimes more than 5 ms in Pb target irradiated by 60-70 GeV protons

Creators

  • 1. Joint Inst. for Nuclear Research, Dubna (USSR)
  • 2. Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Serpukhov. Inst. Fiziki Vysokikh Ehnergij
  • 3. Moskovskij Gosudarstvennyj Univ. (USSR). Nauchno-Issledovatel'skij Inst. Yadernoj Fiziki
  • 4. Irkutskij Gosudarstvennyj Nauchno-Issledovatel'skij Inst. Redkikh i Tsvetnykh Metallov (USSR)

Description

Search for delayed high energy radiation from Pb target irradiated by 61 and 70 GeV protons has been made. Such radiation can arise if hypothetical long-lived particles are produced in collisions of protons and target nuclei and are captured in nuclear matter. The life-time range from 5 ms to day has been investigated. Delayed radiation has not been observed. The upper limit of the process searched for is 10-34-10-35 cm2/Pb nucleus

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Additional titles

Original title (Russian)
Поиски метастабильных состояний с временами жизни более 5 мс в мишени из Pb, облученной протонами с энергией 60–70 GeV

Publishing Information

Imprint Pagination
12 p.
Report number
JINR-R--1-9158

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
8282538
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; GEV RANGE 10-100; LEAD; LIFETIME; METASTABLE STATES; NUCLEAR MATTER; PROTON BEAMS; TARGETS
Descriptors DEC
BEAMS; ELEMENTS; ENERGY LEVELS; ENERGY RANGE; EXCITED STATES; GEV RANGE; INFORMATION; MATTER; METALS; NUCLEON BEAMS; PARTICLE BEAMS

Optional Information

Notes
10 refs.; 2 tables; 2 figs.; submitted to the journal Sov. J. Nucl. Phys.