First search for α decays of naturally occurring Hf nuclides with emission of γ quanta
The first ever search for α decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf sample of natural isotopic abundance with a mass of 179.8 g. For 179 Hf, also α decay to the ground state of 175 Yb was searched for tha...
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| Veröffentlicht in: | The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2020, Vol.56 (1), Article 5 |
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| creator | Danevich, F. A. Hult, M. Kasperovych, D. V. Kovtun, G. P. Kovtun, K. V. Lutter, G. Marissens, G. Polischuk, O. G. Stetsenko, S. P. Tretyak, V. I. |
| description | The first ever search for
α
decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf sample of natural isotopic abundance with a mass of 179.8 g. For
179
Hf, also
α
decay to the ground state of
175
Yb was searched for thanks to the
β
-instability of the daughter nuclide
175
Yb. The measurements were conducted using an ultra-low-background HPGe-detector system located 225 m underground. After 75 days of data taking no decays were detected but lower bounds for the half-lives of the decays were derived on the level of
lim
T
1
/
2
∼
10
15
-
10
18
a. The decay with the shortest half-life based on theoretical calculation is the decay of
174
Hf to the first
2
+
84.3 keV excited level of
170
Yb. The experimental lower bound was found to be
T
1
/
2
≥
3.3
×
10
15
a. |
| doi_str_mv | 10.1140/epja/s10050-019-00005-x |
| format | Article |
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α
decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf sample of natural isotopic abundance with a mass of 179.8 g. For
179
Hf, also
α
decay to the ground state of
175
Yb was searched for thanks to the
β
-instability of the daughter nuclide
175
Yb. The measurements were conducted using an ultra-low-background HPGe-detector system located 225 m underground. After 75 days of data taking no decays were detected but lower bounds for the half-lives of the decays were derived on the level of
lim
T
1
/
2
∼
10
15
-
10
18
a. The decay with the shortest half-life based on theoretical calculation is the decay of
174
Hf to the first
2
+
84.3 keV excited level of
170
Yb. The experimental lower bound was found to be
T
1
/
2
≥
3.3
×
10
15
a.</description><identifier>ISSN: 1434-6001</identifier><identifier>EISSN: 1434-601X</identifier><identifier>DOI: 10.1140/epja/s10050-019-00005-x</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Alpha decay ; Hadrons ; Hafnium isotopes ; Half-life ; Heavy Ions ; Lower bounds ; Nuclear Fusion ; Nuclear Physics ; Nuclides ; Particle and Nuclear Physics ; Physics ; Physics and Astronomy ; Regular Article - Experimental Physics</subject><ispartof>The European physical journal. A, Hadrons and nuclei, 2020, Vol.56 (1), Article 5</ispartof><rights>Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature 2020</rights><rights>2020© Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-75821e2ceb0c10a3768df53656b98a1d10258fe4f751df293a3b8cde22ae58c73</citedby><cites>FETCH-LOGICAL-c334t-75821e2ceb0c10a3768df53656b98a1d10258fe4f751df293a3b8cde22ae58c73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1140/epja/s10050-019-00005-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1140/epja/s10050-019-00005-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Danevich, F. A.</creatorcontrib><creatorcontrib>Hult, M.</creatorcontrib><creatorcontrib>Kasperovych, D. V.</creatorcontrib><creatorcontrib>Kovtun, G. P.</creatorcontrib><creatorcontrib>Kovtun, K. V.</creatorcontrib><creatorcontrib>Lutter, G.</creatorcontrib><creatorcontrib>Marissens, G.</creatorcontrib><creatorcontrib>Polischuk, O. G.</creatorcontrib><creatorcontrib>Stetsenko, S. P.</creatorcontrib><creatorcontrib>Tretyak, V. I.</creatorcontrib><title>First search for α decays of naturally occurring Hf nuclides with emission of γ quanta</title><title>The European physical journal. A, Hadrons and nuclei</title><addtitle>Eur. Phys. J. A</addtitle><description>The first ever search for
α
decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf sample of natural isotopic abundance with a mass of 179.8 g. For
179
Hf, also
α
decay to the ground state of
175
Yb was searched for thanks to the
β
-instability of the daughter nuclide
175
Yb. The measurements were conducted using an ultra-low-background HPGe-detector system located 225 m underground. After 75 days of data taking no decays were detected but lower bounds for the half-lives of the decays were derived on the level of
lim
T
1
/
2
∼
10
15
-
10
18
a. The decay with the shortest half-life based on theoretical calculation is the decay of
174
Hf to the first
2
+
84.3 keV excited level of
170
Yb. The experimental lower bound was found to be
T
1
/
2
≥
3.3
×
10
15
a.</description><subject>Alpha decay</subject><subject>Hadrons</subject><subject>Hafnium isotopes</subject><subject>Half-life</subject><subject>Heavy Ions</subject><subject>Lower bounds</subject><subject>Nuclear Fusion</subject><subject>Nuclear Physics</subject><subject>Nuclides</subject><subject>Particle and Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Regular Article - Experimental Physics</subject><issn>1434-6001</issn><issn>1434-601X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkE1OwzAQhS0EEqVwBiyxDvX4Jz9LVFGKVIkNSN1ZrmNTV2mS2oloj4V6j56JhCBYMpsZjd6b0fsQugVyD8DJxNQbNQlAiCARgSwiXYlof4ZGwBmPYgLL89-ZwCW6CmHTaTjN4hFazpwPDQ5Geb3GtvL49Ilzo9Uh4MriUjWtV0VxwJXWrfeufMfzbt3qwuUm4A_XrLHZuhBcVfaG0xHvWlU26hpdWFUEc_PTx-ht9vg6nUeLl6fn6cMi0ozxJkpESsFQbVZEA1EsidPcChaLeJWlCnIgVKTWcJsIyC3NmGKrVOeGUmVEqhM2RnfD3dpXu9aERm6q1pfdS0kZZzSBuMs-Rsmg0r4KwRsra--2yh8kENljlD1GOWCUHUb5jVHuO2c6OEPdpzf-7_5_1i-xU3tl</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Danevich, F. A.</creator><creator>Hult, M.</creator><creator>Kasperovych, D. V.</creator><creator>Kovtun, G. P.</creator><creator>Kovtun, K. V.</creator><creator>Lutter, G.</creator><creator>Marissens, G.</creator><creator>Polischuk, O. G.</creator><creator>Stetsenko, S. P.</creator><creator>Tretyak, V. I.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2020</creationdate><title>First search for α decays of naturally occurring Hf nuclides with emission of γ quanta</title><author>Danevich, F. A. ; Hult, M. ; Kasperovych, D. V. ; Kovtun, G. P. ; Kovtun, K. V. ; Lutter, G. ; Marissens, G. ; Polischuk, O. G. ; Stetsenko, S. P. ; Tretyak, V. I.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-75821e2ceb0c10a3768df53656b98a1d10258fe4f751df293a3b8cde22ae58c73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Alpha decay</topic><topic>Hadrons</topic><topic>Hafnium isotopes</topic><topic>Half-life</topic><topic>Heavy Ions</topic><topic>Lower bounds</topic><topic>Nuclear Fusion</topic><topic>Nuclear Physics</topic><topic>Nuclides</topic><topic>Particle and Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Regular Article - Experimental Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Danevich, F. A.</creatorcontrib><creatorcontrib>Hult, M.</creatorcontrib><creatorcontrib>Kasperovych, D. V.</creatorcontrib><creatorcontrib>Kovtun, G. P.</creatorcontrib><creatorcontrib>Kovtun, K. V.</creatorcontrib><creatorcontrib>Lutter, G.</creatorcontrib><creatorcontrib>Marissens, G.</creatorcontrib><creatorcontrib>Polischuk, O. G.</creatorcontrib><creatorcontrib>Stetsenko, S. P.</creatorcontrib><creatorcontrib>Tretyak, V. I.</creatorcontrib><collection>CrossRef</collection><jtitle>The European physical journal. A, Hadrons and nuclei</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Danevich, F. A.</au><au>Hult, M.</au><au>Kasperovych, D. V.</au><au>Kovtun, G. P.</au><au>Kovtun, K. V.</au><au>Lutter, G.</au><au>Marissens, G.</au><au>Polischuk, O. G.</au><au>Stetsenko, S. P.</au><au>Tretyak, V. I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>First search for α decays of naturally occurring Hf nuclides with emission of γ quanta</atitle><jtitle>The European physical journal. A, Hadrons and nuclei</jtitle><stitle>Eur. Phys. J. A</stitle><date>2020</date><risdate>2020</risdate><volume>56</volume><issue>1</issue><artnum>5</artnum><issn>1434-6001</issn><eissn>1434-601X</eissn><abstract>The first ever search for
α
decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf sample of natural isotopic abundance with a mass of 179.8 g. For
179
Hf, also
α
decay to the ground state of
175
Yb was searched for thanks to the
β
-instability of the daughter nuclide
175
Yb. The measurements were conducted using an ultra-low-background HPGe-detector system located 225 m underground. After 75 days of data taking no decays were detected but lower bounds for the half-lives of the decays were derived on the level of
lim
T
1
/
2
∼
10
15
-
10
18
a. The decay with the shortest half-life based on theoretical calculation is the decay of
174
Hf to the first
2
+
84.3 keV excited level of
170
Yb. The experimental lower bound was found to be
T
1
/
2
≥
3.3
×
10
15
a.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1140/epja/s10050-019-00005-x</doi></addata></record> |
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| subjects | Alpha decay Hadrons Hafnium isotopes Half-life Heavy Ions Lower bounds Nuclear Fusion Nuclear Physics Nuclides Particle and Nuclear Physics Physics Physics and Astronomy Regular Article - Experimental Physics |
| title | First search for α decays of naturally occurring Hf nuclides with emission of γ quanta |
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