2,240 research outputs found
Role of a decrease in body heat content in the thermoregulatory reaction of the concha auriculae vessels
At the constant ambient temperature 28-30 C the rabbit ear vessels were dilated and their temperature was 34.8/0.1 C. Administration of the 23-29 C water into the stomach entailed thermoregulatory construction of the ear vessels within 15-25 min. The response occurred at various combinations of temperature changes in different parts of the body. The heat content of the rabbit body, as calculated by the blood temperature in the aorta arc, reduced by 266.3 + or - 26.2 cal/kg at the beginning of the response. The decrease in the organism heat content seems to serve as a signal for occurrence of a corresponding thermoregulatory response
ΠΠΠΠΠ ΠΠ ΠΠ ΠΠΠΠ¨ΠΠΠ Π―ΠΠ Π ΠΠΠΠΠ Π ΠΠΠ Π ΠΠΠ¬ Π ΠΠΠ£ΠΠΠΠΠΠΜ ΠΠΠΠΠΠΠΠΠΠΠ
The content of hydrogen in the outer core of the Earth is roughly quantified from the dependence of the density of iron (viewed as the main component of the core) on the amount of hydrogen dissolved in the core, with account of the most likely presence of iron hydrogen in the outer core, and the matterβs density jumps at the boundaries between the outer liquid core and the internal solid core (that is devoid of hydrogen) and the mantle. Estimations for the outer liquid core show that the hydrogen content varies from 0.67 wt. % at the boundary with the solid inner core to 3.04 wt. % at the boundary with the mantle.Iron occlusion is viewed as the most likely mechanism for the ironβnickel core to capture such a significant amount of hydrogen. Iron occlusion took place at the stage of the young sun when the metallic core emerged in the cooling protoplanetary cloud containing hydrogen in high amounts, and non-volatile hydrogen was accumulated. Absorption (occlusion) of molecular hydrogen was preceded by dissociation of molecules into atoms and ionization of the atoms, as proved by results of studies focused on FeβH2 system, and hydrogen dissipation was thus prevented. The core matter was subject to gravitational compression at high pressures that contributed to the forced rapprochement of protons and electrons which interaction resulted by the formation of hydrogen atoms. Highly active hydrogen atoms reacted with metals and produced hydrides of iron and nickel, FeH and NiH. While the metallic core and then the silicate mantle were growing and consolidating, the stability of FeH and NiH was maintained due to pressures that were steadily increasing. Later on, due to the impacts of external forces on the Earth, marginal layers at the mantleβcore boundary were detached and displaced, pressures decreased in the system, and iron and nickel hydrides were decomposed to produce molecular hydrogen. Consequences of the hydrides transformation into molecular hydrogen are important in terms of petrology, mineralogy and geodynamics. At high temperatures, molecular hydrogen can be involved in redox reactions with iron silicates and carbonaceous gases (CO and CO2), and the synthesis of water becomes possible throughout the entire mantle. It is known that water can significantly reduce the temperature of rock melting, which leads to partial melting of the rocks and pluming in the asthenosphere (in the Dβ layer) at the bottom of the mantle, and causes the hydrolysis of magnesium silicates, which results in the chemically bound state (hydroxyl ions). Highly ductile hydroxyl-containing magnesium silicates can alter rheological properties of the rocks. A combination of rheologically weak areas in the mantle rocks and the external cosmic effects can cause significant impacts on the tectonic activity and facilitate its manifestation throughout the entire mantle.ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΠΆΠ΅Π»Π΅Π·Π° (ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠ° ΡΠ΄ΡΠ°) ΠΎΡ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° ΡΠ°ΡΡΠ²ΠΎΡΠ΅Π½Π½ΠΎΠ³ΠΎ Π² Π½Π΅ΠΌ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΈ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π²Π΅ΡΠΎΡΡΠ½ΠΎΠ³ΠΎ Π½Π°Ρ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π΅Π³ΠΎ Π²ΠΎ Π²Π½Π΅ΡΠ½Π΅ΠΌ ΡΠ΄ΡΠ΅ ΠΠ΅ΠΌΠ»ΠΈ Π² ΡΠΎΡΠΌΠ΅ Π³ΠΈΠ΄ΡΠΈΠ΄Π° ΠΆΠ΅Π»Π΅Π·Π°, Π° ΡΠ°ΠΊΠΆΠ΅ Π½Π°Π»ΠΈΡΠΈΡ ΡΠ΅Π·ΠΊΠΈΡ
ΡΠΊΠ°ΡΠΊΠΎΠ² ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ Π²Π΅ΡΠ΅ΡΡΠ²Π° Π½Π° Π³ΡΠ°Π½ΠΈΡΠ°Ρ
Π²Π½Π΅ΡΠ½Π΅Π³ΠΎ ΠΆΠΈΠ΄ΠΊΠΎΠ³ΠΎ ΡΠ΄ΡΠ° Ρ Π²Π½ΡΡΡΠ΅Π½Π½ΠΈΠΌ ΡΠ²Π΅ΡΠ΄ΡΠΌ (Π»ΠΈΡΠ΅Π½Π½ΡΠΌ ΠΏΡΠΈΠΌΠ΅ΡΠΈ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π°) ΡΠ΄ΡΠΎΠΌ ΠΈ Ρ ΠΌΠ°Π½ΡΠΈΠ΅ΠΈΜ ΠΏΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Π° ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½Π½Π°Ρ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½Π°Ρ ΠΎΡΠ΅Π½ΠΊΠ° ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° Π² Π½Π°Π·Π²Π°Π½Π½ΠΎΠΈΜ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠ΅. Π‘ΠΎΠ³Π»Π°ΡΠ½ΠΎ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΠΎΠΌΡ ΡΠ°ΡΡΠ΅ΡΡ, ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° Π²ΠΎ Π²Π½Π΅ΡΠ½Π΅ΠΌ ΠΆΠΈΠ΄ΠΊΠΎΠΌ ΡΠ΄ΡΠ΅ ΠΌΠ΅Π½ΡΠ΅ΡΡΡ ΠΎΡ 0.67 ΠΌΠ°Ρ. % Π½Π° Π³ΡΠ°Π½ΠΈΡΠ΅ Ρ Π²Π½ΡΡΡΠ΅Π½Π½ΠΈΠΌ ΡΠ²Π΅ΡΠ΄ΡΠΌ ΡΠ΄ΡΠΎΠΌ Π΄ΠΎ 3.04 ΠΌΠ°Ρ. % Π½Π° Π³ΡΠ°Π½ΠΈΡΠ΅ Ρ ΠΌΠ°Π½ΡΠΈΠ΅ΠΈΜ.Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π²Π΅ΡΠΎΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° Π·Π°Ρ
Π²Π°ΡΠ° ΡΠ°ΠΊΠΎΠ³ΠΎ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΆΠ΅Π»Π΅Π·ΠΎΠ½ΠΈΠΊΠ΅Π»Π΅Π²ΡΠΌ ΡΠ΄ΡΠΎΠΌ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ ΠΎΠΊΠΊΠ»ΡΠ·ΠΈΡ, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΠ»Π° Π½Π΅ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²Π΅Π½Π½ΠΎ ΠΏΡΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΄ΡΠ° Π² ΠΎΡ
Π»Π°ΠΆΠ΄Π°ΡΡΠ΅ΠΌΡΡ ΠΏΡΠΎΡΠΎΠΏΠ»Π°Π½Π΅ΡΠ½ΠΎΠΌ ΠΎΠ±Π»Π°ΠΊΠ΅, ΠΎΠ±ΠΎΠ³Π°ΡΠ΅Π½Π½ΠΎΠΌ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠΌ, Π½Π° ΡΡΠ°Π΄ΠΈΠΈ ΠΌΠΎΠ»ΠΎΠ΄ΠΎΠ³ΠΎ Π‘ΠΎΠ»Π½ΡΠ°. ΠΡΠΈ ΡΡΠΎΠΌ Π°ΠΊΠΊΡΠΌΡΠ»ΡΡΠΈΡ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΠ»Π° Π² Π½Π΅Π»Π΅ΡΡΡΠ΅ΠΈΜ ΡΠΎΡΠΌΠ΅, ΠΏΠΎΡΠΊΠΎΠ»ΡΠΊΡ ΠΎΠΊΠΊΠ»ΡΠ·ΠΈΠΎΠ½Π½ΠΎΠΌΡ ΠΏΠΎΠ³Π»ΠΎΡΠ΅Π½ΠΈΡ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π°, ΠΊΠ°ΠΊ ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎ ΠΈΠ· ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠΈΡΡΠ΅ΠΌΡ Fe-H2, ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²ΠΎΠ²Π°Π»Π° Π΄ΠΈΡΡΠΎΡΠΈΠ°ΡΠΈΡ ΠΌΠΎΠ»Π΅ΠΊΡΠ» Π½Π° Π°ΡΠΎΠΌΡ ΠΈ ΠΈΠΎΠ½ΠΈΠ·Π°ΡΠΈΡ ΠΏΠΎΡΠ»Π΅Π΄Π½ΠΈΡ
. ΠΡΠΎ ΠΏΡΠ΅Π΄ΠΎΡΠ²ΡΠ°ΡΠ°Π»ΠΎ Π΄ΠΈΡΡΠΈΠΏΠ°ΡΠΈΡ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π°. ΠΡΡΠΎΠΊΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ, ΡΠ°Π·Π²ΠΈΠ²Π°ΡΡΠΈΠ΅ΡΡ Π² ΡΠΏΠ»ΠΎΡΠ½ΡΡΡΠ΅ΠΌΡΡ ΠΏΠΎΠ΄ Π΄Π΅ΠΈΜΡΡΠ²ΠΈΠ΅ΠΌ Π³ΡΠ°Π²ΠΈΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΠΆΠ°ΡΠΈΡ Π²Π΅ΡΠ΅ΡΡΠ²Π° ΡΠ΄ΡΠ΅, ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΠΎΠ²Π°Π»ΠΈ ΠΏΡΠΈΠ½ΡΠ΄ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌΡ ΡΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΡ ΡΠ°Π·Π½ΠΎΠ·Π°ΡΡΠΆΠ΅Π½Π½ΡΡ
ΡΠ°ΡΡΠΈΡ (ΠΏΡΠΎΡΠΎΠ½ΠΎΠ² ΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ½ΠΎΠ²) ΠΈ ΠΈΡ
Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΈΜΡΡΠ²ΠΈΡ Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π°ΡΠΎΠΌΠΎΠ² Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π°. ΠΠΎΡΠ»Π΅Π΄Π½ΠΈΠ΅, ΠΎΠ±Π»Π°Π΄Π°Ρ Π²ΡΡΠΎΠΊΠΎΠΈΜ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΈΜ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΡ, Π²ΡΡΡΠΏΠ°Π»ΠΈ Π² ΡΠ΅Π°ΠΊΡΠΈΡ Ρ ΠΌΠ΅ΡΠ°Π»Π»Π°ΠΌΠΈ, ΠΎΠ±ΡΠ°Π·ΡΡ Π³ΠΈΠ΄ΡΠΈΠ΄Ρ ΠΆΠ΅Π»Π΅Π·Π° FeH ΠΈ Π½ΠΈΠΊΠ΅Π»Ρ NiH. ΠΠ΅ΠΏΡΠ΅ΡΡΠ²Π½ΠΎΠ΅ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠΎ ΠΌΠ΅ΡΠ΅ ΡΠΎΡΡΠ° ΠΈ ΡΠΏΠ»ΠΎΡΠ½Π΅Π½ΠΈΡ ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΄ΡΠ°, Π° Π·Π°ΡΠ΅ΠΌ ΠΈ ΡΠΈΠ»ΠΈΠΊΠ°ΡΠ½ΠΎΠΈΜ ΠΌΠ°Π½ΡΠΈΠΈ ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΠΎΠ²Π°Π»ΠΎ ΠΈΡ
ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ. Π Π°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΠ΅ Π³ΠΈΠ΄ΡΠΈΠ΄ΠΎΠ² ΠΆΠ΅Π»Π΅Π·Π° ΠΈ Π½ΠΈΠΊΠ΅Π»Ρ Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΎΠΊΠ°Π·Π°Π»ΠΎΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΡΠΌ, ΠΊΠΎΠ³Π΄Π° Π½Π° Π³ΡΠ°Π½ΠΈΡΠ΅ ΡΠ°Π·Π΄Π΅Π»Π° ΠΌΠ°Π½ΡΠΈΡ β ΡΠ΄ΡΠΎ, Π²ΡΠ»Π΅Π΄ΡΡΠ²ΠΈΠ΅ Π²Π½Π΅ΡΠ½ΠΈΡ
ΡΠΈΠ»ΠΎΠ²ΡΡ
Π²ΠΎΠ·Π΄Π΅ΠΈΜΡΡΠ²ΠΈΠΈΜ Π½Π° ΠΠ΅ΠΌΠ»Ρ ΡΡΠ°Π»ΠΈ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΡΡ ΡΡΡΠ²Ρ ΠΈ ΡΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π³ΡΠ°Π½ΠΈΡΠ½ΡΡ
ΡΠ»ΠΎΠ΅Π², ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡΠΈΠ΅ ΠΊ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΡ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Π² ΡΠΈΡΡΠ΅ΠΌΠ΅. Π’ΡΠ°Π½ΡΡΠΎΡΠΌΠ°ΡΠΈΡ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΈΠ· Π³ΠΈΠ΄ΡΠΈΠ΄Π½ΠΎΠΈΜ ΡΠΎΡΠΌΡ Π² ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ΅ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ ΠΈΠΌΠ΅Π΅Ρ Π²Π°ΠΆΠ½ΡΠ΅ ΠΏΠ΅ΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅, ΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ Π³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΠ²ΠΈΡ. ΠΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΠΈΜ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ ΠΏΡΠΈ Π²ΡΡΠΎΠΊΠΈΡ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°Ρ
ΠΏΡΠΈΠ½ΠΈΠΌΠ°Π΅Ρ ΡΡΠ°ΡΡΠΈΠ΅ Π² ΠΎΠΊΠΈΡΠ»ΠΈΡΠ΅Π»ΡΠ½ΠΎ-Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΡΠ΅Π°ΠΊΡΠΈΡΡ
Ρ ΠΆΠ΅Π»Π΅Π·ΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠΌΠΈ ΡΠΈΠ»ΠΈΠΊΠ°ΡΠ°ΠΌΠΈ ΠΈ ΡΠ³Π»Π΅ΡΠΎΠ΄ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠΌΠΈ Π³Π°Π·Π°ΠΌΠΈ (CO, CO2), ΡΡΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΈΠ½ΡΠ΅Π·Π° Π²ΠΎΠ΄Ρ Π²ΠΎ Π²ΡΠ΅ΠΌ ΠΎΠ±ΡΠ΅ΠΌΠ΅ ΠΌΠ°Π½ΡΠΈΠΈ. ΠΠΎΠ΄Π°, ΠΊΠ°ΠΊ ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎ, ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ ΡΠ½ΠΈΠΆΠ°Π΅Ρ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠΎΡΠΎΠ΄, ΠΏΡΠΈΠ²ΠΎΠ΄Ρ ΠΊ ΠΈΡ
ΡΠ°ΡΡΠΈΡΠ½ΠΎΠΌΡ ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ (Π°ΡΡΠ΅Π½ΠΎΡΡΠ΅ΡΠ°, ΡΠ»ΠΎΠΈΜ Dβ Π² ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΠΌΠ°Π½ΡΠΈΠΈ, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ Π·Π°ΡΠΎΠΆΠ΄Π°ΡΡΡΡ ΠΏΠ»ΡΠΌΡ), ΠΈ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ΅Ρ Π³ΠΈΠ΄ΡΠΎΠ»ΠΈΠ· ΡΠΈΠ»ΠΈΠΊΠ°ΡΠΎΠ² ΠΌΠ°Π³Π½ΠΈΡ, ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Ρ ΠΏΡΠΈ ΡΡΠΎΠΌ Π² Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈ ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠ΅ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ (Π² Π²ΠΈΠ΄Π΅ Π³ΠΈΠ΄ΡΠΎΠΊΡΠΈΠ»-ΠΈΠΎΠ½ΠΎΠ²). ΠΠΈΠ΄ΡΠΎΠΊΡΠΈΠ»ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅ ΡΠΈΠ»ΠΈΠΊΠ°ΡΡ ΠΌΠ°Π³Π½ΠΈΡ ΠΎΠ±Π»Π°Π΄Π°ΡΡ Π²ΡΡΠΎΠΊΠΎΠΈΜ ΠΏΠ»Π°ΡΡΠΈΡΠ½ΠΎΡΡΡΡ ΠΈ ΡΠ°ΠΊΠΆΠ΅ ΠΈΠ·ΠΌΠ΅Π½ΡΡΡ ΡΠ΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΈΜΡΡΠ²Π° ΠΏΠΎΡΠΎΠ΄. ΠΠΎΡΠ²Π»Π΅Π½ΠΈΠ΅ ΡΠ΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ ΠΎΡΠ»Π°Π±Π»Π΅Π½Π½ΡΡ
ΡΡΠ°ΡΡΠΊΠΎΠ² ΠΏΠΎΡΠΎΠ΄ Π² ΠΌΠ°Π½ΡΠΈΠΈ Π² ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΠΈ Ρ Π²Π½Π΅ΡΠ½ΠΈΠΌΠΈ ΠΊΠΎΡΠΌΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ Π²ΠΎΠ·Π΄Π΅ΠΈΜΡΡΠ²ΠΈΡΠΌΠΈ ΠΎΠΊΠ°Π·ΡΠ²Π°Π΅Ρ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ΅ Π²Π»ΠΈΡΠ½ΠΈΠ΅ Π½Π° ΡΠ΅ΠΊΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ Π΅Π΅ ΠΏΡΠΎΡΠ²Π»Π΅Π½ΠΈΡ Π²ΠΎ Π²ΡΠ΅ΠΌ ΠΎΠ±ΡΠ΅ΠΌΠ΅ ΠΌΠ°Π½ΡΠΈΠΈ
Lepton pair production by high-energy neutrino in an external electromagnetic field
The process of the lepton pair production by a neutrino propagating in an
external electromagnetic field is investigated in the framework of the Standard
Model. Relatively simple exact expression for the probability as the single
integral is obtained, which is suitable for a quantitative analysis.Comment: 9 pages, LATEX, 2 PS figures, submitted to Modern Physics Letters
New Limit for the Half-Life of 2K(2neutrino)-Capture Decay Mode of 78Kr
Features of data accumulated at 1817 hours in the experimental search for
2K(2 \nu)-capture decay mode of Kr-78 are discussed. The new limit for this
decay half-life is found to be T_{1/2} > 2.3 *10^{20} yr. (90% C.L.).Comment: 7 pages, 4 figures, submitted to Phys. of Atom. Nuc
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