Measurement of the radiative decay of polarized muons in the MEG experiment
We studied the radiative muon decay μ + → e + ν ν ¯ γ by using for the first time an almost fully polarized muon source. We identified a large sample ( ∼ 13,000) of these decays in a total sample of 1.8 × 10 14 positive muon decays collected in the MEG experiment in the years 2009–2010 and measured...
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2016-02, Vol.76 (3), p.1-8, Article 108 |
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| creator | Baldini, A. M. Bao, Y. Baracchini, E. Bemporad, C. Berg, F. Biasotti, M. Boca, G. Cattaneo, P. W. Cavoto, G. Cei, F. Chiarello, G. Chiri, C. de Bari, A. De Gerone, M. D’Onofrio, A. Dussoni, S. Fujii, Y. Galli, L. Gatti, F. Grancagnolo, F. Grassi, M. Graziosi, A. Grigoriev, D. N. Haruyama, T. Hildebrandt, M. Hodge, Z. Ieki, K. Ignatov, F. Iwamoto, T. Kaneko, D. Kang, Tae Im Kettle, P.-R. Khazin, B. I. Khomutov, N. Korenchenko, A. Kravchuk, N. Lim, G. M. A. Mihara, S. Molzon, W. Mori, Toshinori Mtchedlishvili, A. Nakaura, S. Nicolò, D. Nishiguchi, H. Nishimura, M. Ogawa, S. Ootani, W. Panareo, M. Papa, A. Pepino, A. Piredda, G. Pizzigoni, G. Popov, A. Renga, F. Ripiccini, E. Ritt, S. Rossella, M. Rutar, G. Sawada, R. Sergiampietri, F. Signorelli, G. Tassielli, G. F. Tenchini, F. Uchiyama, Y. Venturini, M. Voena, C. Yamamoto, A. Yoshida, K. You, Z. Yudin, Yu. V. |
| description | We studied the radiative muon decay
μ
+
→
e
+
ν
ν
¯
γ
by using for the first time an almost fully polarized muon source. We identified a large sample (
∼
13,000) of these decays in a total sample of
1.8
×
10
14
positive muon decays collected in the MEG experiment in the years 2009–2010 and measured the branching ratio
B
(
μ
→
e
ν
ν
¯
γ
)
=
(
6.03
±
0.14
(
stat
.
)
±
0.53
(
sys
.
)
)
×
10
-
8
for
E
e
>
45
MeV
and
E
γ
>
40
MeV
, consistent with the Standard Model prediction. The precise measurement of this decay mode provides a basic tool for the timing calibration, a normalization channel, and a strong quality check of the complete MEG experiment in the search for
μ
+
→
e
+
γ
process. |
| doi_str_mv | 10.1140/epjc/s10052-016-3947-6 |
| format | Article |
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μ
+
→
e
+
ν
ν
¯
γ
by using for the first time an almost fully polarized muon source. We identified a large sample (
∼
13,000) of these decays in a total sample of
1.8
×
10
14
positive muon decays collected in the MEG experiment in the years 2009–2010 and measured the branching ratio
B
(
μ
→
e
ν
ν
¯
γ
)
=
(
6.03
±
0.14
(
stat
.
)
±
0.53
(
sys
.
)
)
×
10
-
8
for
E
e
>
45
MeV
and
E
γ
>
40
MeV
, consistent with the Standard Model prediction. The precise measurement of this decay mode provides a basic tool for the timing calibration, a normalization channel, and a strong quality check of the complete MEG experiment in the search for
μ
+
→
e
+
γ
process.</description><identifier>ISSN: 1434-6044</identifier><identifier>EISSN: 1434-6052</identifier><identifier>DOI: 10.1140/epjc/s10052-016-3947-6</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Astronomy ; Astrophysics and Cosmology ; Calibration ; Channels ; Decomposition ; Elementary Particles ; Hadrons ; Heavy Ions ; Mathematical models ; Measurement Science and Instrumentation ; Muons ; Nuclear Energy ; Nuclear Physics ; Physics ; Physics and Astronomy ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; Quantum Field Theories ; Quantum Field Theory ; Regular Article - Experimental Physics ; Searching ; String Theory ; Texts ; Time measurements</subject><ispartof>The European physical journal. C, Particles and fields, 2016-02, Vol.76 (3), p.1-8, Article 108</ispartof><rights>The Author(s) 2016</rights><rights>COPYRIGHT 2016 Springer</rights><rights>SIF and Springer-Verlag Berlin Heidelberg 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c578t-7e6db08f9e1b3bfe41fb63539a3066491c656813eaff932dda8bf854cb7a08ac3</citedby><cites>FETCH-LOGICAL-c578t-7e6db08f9e1b3bfe41fb63539a3066491c656813eaff932dda8bf854cb7a08ac3</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/epjc/s10052-016-3947-6$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1140/epjc/s10052-016-3947-6$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>230,314,776,780,860,881,27901,27902,41096,41464,42165,42533,51294,51551</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1361412$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Baldini, A. M.</creatorcontrib><creatorcontrib>Bao, Y.</creatorcontrib><creatorcontrib>Baracchini, E.</creatorcontrib><creatorcontrib>Bemporad, C.</creatorcontrib><creatorcontrib>Berg, F.</creatorcontrib><creatorcontrib>Biasotti, M.</creatorcontrib><creatorcontrib>Boca, G.</creatorcontrib><creatorcontrib>Cattaneo, P. W.</creatorcontrib><creatorcontrib>Cavoto, G.</creatorcontrib><creatorcontrib>Cei, F.</creatorcontrib><creatorcontrib>Chiarello, G.</creatorcontrib><creatorcontrib>Chiri, C.</creatorcontrib><creatorcontrib>de Bari, A.</creatorcontrib><creatorcontrib>De Gerone, M.</creatorcontrib><creatorcontrib>D’Onofrio, A.</creatorcontrib><creatorcontrib>Dussoni, S.</creatorcontrib><creatorcontrib>Fujii, Y.</creatorcontrib><creatorcontrib>Galli, L.</creatorcontrib><creatorcontrib>Gatti, F.</creatorcontrib><creatorcontrib>Grancagnolo, F.</creatorcontrib><creatorcontrib>Grassi, M.</creatorcontrib><creatorcontrib>Graziosi, A.</creatorcontrib><creatorcontrib>Grigoriev, D. N.</creatorcontrib><creatorcontrib>Haruyama, T.</creatorcontrib><creatorcontrib>Hildebrandt, M.</creatorcontrib><creatorcontrib>Hodge, Z.</creatorcontrib><creatorcontrib>Ieki, K.</creatorcontrib><creatorcontrib>Ignatov, F.</creatorcontrib><creatorcontrib>Iwamoto, T.</creatorcontrib><creatorcontrib>Kaneko, D.</creatorcontrib><creatorcontrib>Kang, Tae Im</creatorcontrib><creatorcontrib>Kettle, P.-R.</creatorcontrib><creatorcontrib>Khazin, B. I.</creatorcontrib><creatorcontrib>Khomutov, N.</creatorcontrib><creatorcontrib>Korenchenko, A.</creatorcontrib><creatorcontrib>Kravchuk, N.</creatorcontrib><creatorcontrib>Lim, G. M. A.</creatorcontrib><creatorcontrib>Mihara, S.</creatorcontrib><creatorcontrib>Molzon, W.</creatorcontrib><creatorcontrib>Mori, Toshinori</creatorcontrib><creatorcontrib>Mtchedlishvili, A.</creatorcontrib><creatorcontrib>Nakaura, S.</creatorcontrib><creatorcontrib>Nicolò, D.</creatorcontrib><creatorcontrib>Nishiguchi, H.</creatorcontrib><creatorcontrib>Nishimura, M.</creatorcontrib><creatorcontrib>Ogawa, S.</creatorcontrib><creatorcontrib>Ootani, W.</creatorcontrib><creatorcontrib>Panareo, M.</creatorcontrib><creatorcontrib>Papa, A.</creatorcontrib><creatorcontrib>Pepino, A.</creatorcontrib><creatorcontrib>Piredda, G.</creatorcontrib><creatorcontrib>Pizzigoni, G.</creatorcontrib><creatorcontrib>Popov, A.</creatorcontrib><creatorcontrib>Renga, F.</creatorcontrib><creatorcontrib>Ripiccini, E.</creatorcontrib><creatorcontrib>Ritt, S.</creatorcontrib><creatorcontrib>Rossella, M.</creatorcontrib><creatorcontrib>Rutar, G.</creatorcontrib><creatorcontrib>Sawada, R.</creatorcontrib><creatorcontrib>Sergiampietri, F.</creatorcontrib><creatorcontrib>Signorelli, G.</creatorcontrib><creatorcontrib>Tassielli, G. F.</creatorcontrib><creatorcontrib>Tenchini, F.</creatorcontrib><creatorcontrib>Uchiyama, Y.</creatorcontrib><creatorcontrib>Venturini, M.</creatorcontrib><creatorcontrib>Voena, C.</creatorcontrib><creatorcontrib>Yamamoto, A.</creatorcontrib><creatorcontrib>Yoshida, K.</creatorcontrib><creatorcontrib>You, Z.</creatorcontrib><creatorcontrib>Yudin, Yu. V.</creatorcontrib><creatorcontrib>The MEG Collaboration</creatorcontrib><creatorcontrib>Univ. of California, Irvine, CA (United States)</creatorcontrib><title>Measurement of the radiative decay of polarized muons in the MEG experiment</title><title>The European physical journal. C, Particles and fields</title><addtitle>Eur. Phys. J. C</addtitle><description>We studied the radiative muon decay
μ
+
→
e
+
ν
ν
¯
γ
by using for the first time an almost fully polarized muon source. We identified a large sample (
∼
13,000) of these decays in a total sample of
1.8
×
10
14
positive muon decays collected in the MEG experiment in the years 2009–2010 and measured the branching ratio
B
(
μ
→
e
ν
ν
¯
γ
)
=
(
6.03
±
0.14
(
stat
.
)
±
0.53
(
sys
.
)
)
×
10
-
8
for
E
e
>
45
MeV
and
E
γ
>
40
MeV
, consistent with the Standard Model prediction. The precise measurement of this decay mode provides a basic tool for the timing calibration, a normalization channel, and a strong quality check of the complete MEG experiment in the search for
μ
+
→
e
+
γ
process.</description><subject>Astronomy</subject><subject>Astrophysics and Cosmology</subject><subject>Calibration</subject><subject>Channels</subject><subject>Decomposition</subject><subject>Elementary Particles</subject><subject>Hadrons</subject><subject>Heavy Ions</subject><subject>Mathematical models</subject><subject>Measurement Science and Instrumentation</subject><subject>Muons</subject><subject>Nuclear Energy</subject><subject>Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Regular Article - Experimental Physics</subject><subject>Searching</subject><subject>String Theory</subject><subject>Texts</subject><subject>Time measurements</subject><issn>1434-6044</issn><issn>1434-6052</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kd1r1jAUh4soOKf_ghS90Ytu5zRp2l6OMedwQ_DjOqTpybu89E1qksrmX29qRZwXkkDC4XlOPn5F8RLhBJHDKc17fRoRoKkrQFGxnreVeFQcIWe8Ern8-M-e86fFsxj3AFBz6I6KDzek4hLoQC6V3pTplsqgRquS_U7lSFrdr-XZTyrYHzSWh8W7WFr3i7y5uCzpbqZgV_958cSoKdKL3-tx8fXdxZfz99X1x8ur87PrSjdtl6qWxDhAZ3rCgQ2GOJpBsIb1ioEQvEctGtEhI2VMz-pxVN1guobroVXQKc2Oi1dbXx-TlVHbRPpWe-dIJ4lMIMc6Q282aA7-20IxyYONmqZJOfJLlNjlD4MaGp7R1_-ge78El58gsW0RWmQcMnWyUTs1kbTO-BSUzmOkg82nk7G5fpZ7MpGnyMLbB0JmEt2lnVpilFefPz1kxcbq4GMMZOSc_1SFe4kg15TlmrLcUpY5ZbmmLFex3cSYBbej8Nfd_2_-BCdqqz8</recordid><startdate>20160229</startdate><enddate>20160229</enddate><creator>Baldini, A. M.</creator><creator>Bao, Y.</creator><creator>Baracchini, E.</creator><creator>Bemporad, C.</creator><creator>Berg, F.</creator><creator>Biasotti, M.</creator><creator>Boca, G.</creator><creator>Cattaneo, P. W.</creator><creator>Cavoto, G.</creator><creator>Cei, F.</creator><creator>Chiarello, G.</creator><creator>Chiri, C.</creator><creator>de Bari, A.</creator><creator>De Gerone, M.</creator><creator>D’Onofrio, A.</creator><creator>Dussoni, S.</creator><creator>Fujii, Y.</creator><creator>Galli, L.</creator><creator>Gatti, F.</creator><creator>Grancagnolo, F.</creator><creator>Grassi, M.</creator><creator>Graziosi, A.</creator><creator>Grigoriev, D. N.</creator><creator>Haruyama, T.</creator><creator>Hildebrandt, M.</creator><creator>Hodge, Z.</creator><creator>Ieki, K.</creator><creator>Ignatov, F.</creator><creator>Iwamoto, T.</creator><creator>Kaneko, D.</creator><creator>Kang, Tae Im</creator><creator>Kettle, P.-R.</creator><creator>Khazin, B. I.</creator><creator>Khomutov, N.</creator><creator>Korenchenko, A.</creator><creator>Kravchuk, N.</creator><creator>Lim, G. M. A.</creator><creator>Mihara, S.</creator><creator>Molzon, W.</creator><creator>Mori, Toshinori</creator><creator>Mtchedlishvili, A.</creator><creator>Nakaura, S.</creator><creator>Nicolò, D.</creator><creator>Nishiguchi, H.</creator><creator>Nishimura, M.</creator><creator>Ogawa, S.</creator><creator>Ootani, W.</creator><creator>Panareo, M.</creator><creator>Papa, A.</creator><creator>Pepino, A.</creator><creator>Piredda, G.</creator><creator>Pizzigoni, G.</creator><creator>Popov, A.</creator><creator>Renga, F.</creator><creator>Ripiccini, E.</creator><creator>Ritt, S.</creator><creator>Rossella, M.</creator><creator>Rutar, G.</creator><creator>Sawada, R.</creator><creator>Sergiampietri, F.</creator><creator>Signorelli, G.</creator><creator>Tassielli, G. 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V.</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>7U5</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PIMPY</scope><scope>PKEHL</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>OIOZB</scope><scope>OTOTI</scope></search><sort><creationdate>20160229</creationdate><title>Measurement of the radiative decay of polarized muons in the MEG experiment</title><author>Baldini, A. M. ; Bao, Y. ; Baracchini, E. ; Bemporad, C. ; Berg, F. ; Biasotti, M. ; Boca, G. ; Cattaneo, P. W. ; Cavoto, G. ; Cei, F. ; Chiarello, G. ; Chiri, C. ; de Bari, A. ; De Gerone, M. ; D’Onofrio, A. ; Dussoni, S. ; Fujii, Y. ; Galli, L. ; Gatti, F. ; Grancagnolo, F. ; Grassi, M. ; Graziosi, A. ; Grigoriev, D. N. ; Haruyama, T. ; Hildebrandt, M. ; Hodge, Z. ; Ieki, K. ; Ignatov, F. ; Iwamoto, T. ; Kaneko, D. ; Kang, Tae Im ; Kettle, P.-R. ; Khazin, B. I. ; Khomutov, N. ; Korenchenko, A. ; Kravchuk, N. ; Lim, G. M. A. ; Mihara, S. ; Molzon, W. ; Mori, Toshinori ; Mtchedlishvili, A. ; Nakaura, S. ; Nicolò, D. ; Nishiguchi, H. ; Nishimura, M. ; Ogawa, S. ; Ootani, W. ; Panareo, M. ; Papa, A. ; Pepino, A. ; Piredda, G. ; Pizzigoni, G. ; Popov, A. ; Renga, F. ; Ripiccini, E. ; Ritt, S. ; Rossella, M. ; Rutar, G. ; Sawada, R. ; Sergiampietri, F. ; Signorelli, G. ; Tassielli, G. F. ; Tenchini, F. ; Uchiyama, Y. ; Venturini, M. ; Voena, C. ; Yamamoto, A. ; Yoshida, K. ; You, Z. ; Yudin, Yu. V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c578t-7e6db08f9e1b3bfe41fb63539a3066491c656813eaff932dda8bf854cb7a08ac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Astronomy</topic><topic>Astrophysics and Cosmology</topic><topic>Calibration</topic><topic>Channels</topic><topic>Decomposition</topic><topic>Elementary Particles</topic><topic>Hadrons</topic><topic>Heavy Ions</topic><topic>Mathematical models</topic><topic>Measurement Science and Instrumentation</topic><topic>Muons</topic><topic>Nuclear Energy</topic><topic>Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Regular Article - Experimental Physics</topic><topic>Searching</topic><topic>String Theory</topic><topic>Texts</topic><topic>Time measurements</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baldini, A. M.</creatorcontrib><creatorcontrib>Bao, Y.</creatorcontrib><creatorcontrib>Baracchini, E.</creatorcontrib><creatorcontrib>Bemporad, C.</creatorcontrib><creatorcontrib>Berg, F.</creatorcontrib><creatorcontrib>Biasotti, M.</creatorcontrib><creatorcontrib>Boca, G.</creatorcontrib><creatorcontrib>Cattaneo, P. W.</creatorcontrib><creatorcontrib>Cavoto, G.</creatorcontrib><creatorcontrib>Cei, F.</creatorcontrib><creatorcontrib>Chiarello, G.</creatorcontrib><creatorcontrib>Chiri, C.</creatorcontrib><creatorcontrib>de Bari, A.</creatorcontrib><creatorcontrib>De Gerone, M.</creatorcontrib><creatorcontrib>D’Onofrio, A.</creatorcontrib><creatorcontrib>Dussoni, S.</creatorcontrib><creatorcontrib>Fujii, Y.</creatorcontrib><creatorcontrib>Galli, L.</creatorcontrib><creatorcontrib>Gatti, F.</creatorcontrib><creatorcontrib>Grancagnolo, F.</creatorcontrib><creatorcontrib>Grassi, M.</creatorcontrib><creatorcontrib>Graziosi, A.</creatorcontrib><creatorcontrib>Grigoriev, D. N.</creatorcontrib><creatorcontrib>Haruyama, T.</creatorcontrib><creatorcontrib>Hildebrandt, M.</creatorcontrib><creatorcontrib>Hodge, Z.</creatorcontrib><creatorcontrib>Ieki, K.</creatorcontrib><creatorcontrib>Ignatov, F.</creatorcontrib><creatorcontrib>Iwamoto, T.</creatorcontrib><creatorcontrib>Kaneko, D.</creatorcontrib><creatorcontrib>Kang, Tae Im</creatorcontrib><creatorcontrib>Kettle, P.-R.</creatorcontrib><creatorcontrib>Khazin, B. I.</creatorcontrib><creatorcontrib>Khomutov, N.</creatorcontrib><creatorcontrib>Korenchenko, A.</creatorcontrib><creatorcontrib>Kravchuk, N.</creatorcontrib><creatorcontrib>Lim, G. M. A.</creatorcontrib><creatorcontrib>Mihara, S.</creatorcontrib><creatorcontrib>Molzon, W.</creatorcontrib><creatorcontrib>Mori, Toshinori</creatorcontrib><creatorcontrib>Mtchedlishvili, A.</creatorcontrib><creatorcontrib>Nakaura, S.</creatorcontrib><creatorcontrib>Nicolò, D.</creatorcontrib><creatorcontrib>Nishiguchi, H.</creatorcontrib><creatorcontrib>Nishimura, M.</creatorcontrib><creatorcontrib>Ogawa, S.</creatorcontrib><creatorcontrib>Ootani, W.</creatorcontrib><creatorcontrib>Panareo, M.</creatorcontrib><creatorcontrib>Papa, A.</creatorcontrib><creatorcontrib>Pepino, A.</creatorcontrib><creatorcontrib>Piredda, G.</creatorcontrib><creatorcontrib>Pizzigoni, G.</creatorcontrib><creatorcontrib>Popov, A.</creatorcontrib><creatorcontrib>Renga, F.</creatorcontrib><creatorcontrib>Ripiccini, E.</creatorcontrib><creatorcontrib>Ritt, S.</creatorcontrib><creatorcontrib>Rossella, M.</creatorcontrib><creatorcontrib>Rutar, G.</creatorcontrib><creatorcontrib>Sawada, R.</creatorcontrib><creatorcontrib>Sergiampietri, F.</creatorcontrib><creatorcontrib>Signorelli, G.</creatorcontrib><creatorcontrib>Tassielli, G. F.</creatorcontrib><creatorcontrib>Tenchini, F.</creatorcontrib><creatorcontrib>Uchiyama, Y.</creatorcontrib><creatorcontrib>Venturini, M.</creatorcontrib><creatorcontrib>Voena, C.</creatorcontrib><creatorcontrib>Yamamoto, A.</creatorcontrib><creatorcontrib>Yoshida, K.</creatorcontrib><creatorcontrib>You, Z.</creatorcontrib><creatorcontrib>Yudin, Yu. V.</creatorcontrib><creatorcontrib>The MEG Collaboration</creatorcontrib><creatorcontrib>Univ. of California, Irvine, CA (United States)</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Applied & Life Sciences</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>The European physical journal. C, Particles and fields</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Baldini, A. M.</au><au>Bao, Y.</au><au>Baracchini, E.</au><au>Bemporad, C.</au><au>Berg, F.</au><au>Biasotti, M.</au><au>Boca, G.</au><au>Cattaneo, P. W.</au><au>Cavoto, G.</au><au>Cei, F.</au><au>Chiarello, G.</au><au>Chiri, C.</au><au>de Bari, A.</au><au>De Gerone, M.</au><au>D’Onofrio, A.</au><au>Dussoni, S.</au><au>Fujii, Y.</au><au>Galli, L.</au><au>Gatti, F.</au><au>Grancagnolo, F.</au><au>Grassi, M.</au><au>Graziosi, A.</au><au>Grigoriev, D. N.</au><au>Haruyama, T.</au><au>Hildebrandt, M.</au><au>Hodge, Z.</au><au>Ieki, K.</au><au>Ignatov, F.</au><au>Iwamoto, T.</au><au>Kaneko, D.</au><au>Kang, Tae Im</au><au>Kettle, P.-R.</au><au>Khazin, B. I.</au><au>Khomutov, N.</au><au>Korenchenko, A.</au><au>Kravchuk, N.</au><au>Lim, G. M. A.</au><au>Mihara, S.</au><au>Molzon, W.</au><au>Mori, Toshinori</au><au>Mtchedlishvili, A.</au><au>Nakaura, S.</au><au>Nicolò, D.</au><au>Nishiguchi, H.</au><au>Nishimura, M.</au><au>Ogawa, S.</au><au>Ootani, W.</au><au>Panareo, M.</au><au>Papa, A.</au><au>Pepino, A.</au><au>Piredda, G.</au><au>Pizzigoni, G.</au><au>Popov, A.</au><au>Renga, F.</au><au>Ripiccini, E.</au><au>Ritt, S.</au><au>Rossella, M.</au><au>Rutar, G.</au><au>Sawada, R.</au><au>Sergiampietri, F.</au><au>Signorelli, G.</au><au>Tassielli, G. F.</au><au>Tenchini, F.</au><au>Uchiyama, Y.</au><au>Venturini, M.</au><au>Voena, C.</au><au>Yamamoto, A.</au><au>Yoshida, K.</au><au>You, Z.</au><au>Yudin, Yu. V.</au><aucorp>The MEG Collaboration</aucorp><aucorp>Univ. of California, Irvine, CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of the radiative decay of polarized muons in the MEG experiment</atitle><jtitle>The European physical journal. C, Particles and fields</jtitle><stitle>Eur. Phys. J. C</stitle><date>2016-02-29</date><risdate>2016</risdate><volume>76</volume><issue>3</issue><spage>1</spage><epage>8</epage><pages>1-8</pages><artnum>108</artnum><issn>1434-6044</issn><eissn>1434-6052</eissn><abstract>We studied the radiative muon decay
μ
+
→
e
+
ν
ν
¯
γ
by using for the first time an almost fully polarized muon source. We identified a large sample (
∼
13,000) of these decays in a total sample of
1.8
×
10
14
positive muon decays collected in the MEG experiment in the years 2009–2010 and measured the branching ratio
B
(
μ
→
e
ν
ν
¯
γ
)
=
(
6.03
±
0.14
(
stat
.
)
±
0.53
(
sys
.
)
)
×
10
-
8
for
E
e
>
45
MeV
and
E
γ
>
40
MeV
, consistent with the Standard Model prediction. The precise measurement of this decay mode provides a basic tool for the timing calibration, a normalization channel, and a strong quality check of the complete MEG experiment in the search for
μ
+
→
e
+
γ
process.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1140/epjc/s10052-016-3947-6</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1434-6044 |
| ispartof | The European physical journal. C, Particles and fields, 2016-02, Vol.76 (3), p.1-8, Article 108 |
| issn | 1434-6044 1434-6052 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1361412 |
| source | DOAJ Directory of Open Access Journals; SpringerLink Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Springer Nature OA Free Journals |
| subjects | Astronomy Astrophysics and Cosmology Calibration Channels Decomposition Elementary Particles Hadrons Heavy Ions Mathematical models Measurement Science and Instrumentation Muons Nuclear Energy Nuclear Physics Physics Physics and Astronomy PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Quantum Field Theories Quantum Field Theory Regular Article - Experimental Physics Searching String Theory Texts Time measurements |
| title | Measurement of the radiative decay of polarized muons in the MEG experiment |
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