The (Q7, Q1,2) contribution to B¯→Xsγ at Oαs2
A bstract Interference between the photonic dipole operator Q 7 and the current-current operators Q 1,2 gives one of the most important QCD corrections to the ( B ¯ → X s γ decay rate. So far, the O α s 2 ) part of this correction has been known in the heavy charm quark limit only ( m c ≫ m b / 2)....
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| Veröffentlicht in: | The journal of high energy physics 2015-04, Vol.2015 (4) |
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| container_title | The journal of high energy physics |
| container_volume | 2015 |
| creator | Czakon, Michał Fiedler, Paul Huber, Tobias Misiak, Mikołaj Schutzmeier, Thomas Steinhauser, Matthias |
| description | A
bstract
Interference between the photonic dipole operator
Q
7
and the current-current operators
Q
1,2
gives one of the most important QCD corrections to the (
B
¯
→
X
s
γ
decay rate. So far, the
O
α
s
2
) part of this correction has been known in the heavy charm quark limit only (
m
c
≫
m
b
/
2). Here, we evaluate this part at
m
c
= 0, and use both limits in an updated phenomenological study. Our prediction for the CP- and isospin-averaged branching ratio in the Standard Model reads
ℬ
s
γ
S
M
=
3.36
±
0.23
×
1
0
−
4
for
E
γ
>
1
.
6 GeV. |
| doi_str_mv | 10.1007/JHEP04(2015)168 |
| format | Article |
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bstract
Interference between the photonic dipole operator
Q
7
and the current-current operators
Q
1,2
gives one of the most important QCD corrections to the (
B
¯
→
X
s
γ
decay rate. So far, the
O
α
s
2
) part of this correction has been known in the heavy charm quark limit only (
m
c
≫
m
b
/
2). Here, we evaluate this part at
m
c
= 0, and use both limits in an updated phenomenological study. Our prediction for the CP- and isospin-averaged branching ratio in the Standard Model reads
ℬ
s
γ
S
M
=
3.36
±
0.23
×
1
0
−
4
for
E
γ
>
1
.
6 GeV.</description><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP04(2015)168</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Classical and Quantum Gravitation ; Elementary Particles ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Regular Article - Theoretical Physics ; Relativity Theory ; String Theory</subject><ispartof>The journal of high energy physics, 2015-04, Vol.2015 (4)</ispartof><rights>The Author(s) 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-springer_journals_10_1007_JHEP04_2015_1683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/JHEP04(2015)168$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1007/JHEP04(2015)168$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,778,782,862,27911,27912,41107,42176,51563</link.rule.ids></links><search><creatorcontrib>Czakon, Michał</creatorcontrib><creatorcontrib>Fiedler, Paul</creatorcontrib><creatorcontrib>Huber, Tobias</creatorcontrib><creatorcontrib>Misiak, Mikołaj</creatorcontrib><creatorcontrib>Schutzmeier, Thomas</creatorcontrib><creatorcontrib>Steinhauser, Matthias</creatorcontrib><title>The (Q7, Q1,2) contribution to B¯→Xsγ at Oαs2</title><title>The journal of high energy physics</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
Interference between the photonic dipole operator
Q
7
and the current-current operators
Q
1,2
gives one of the most important QCD corrections to the (
B
¯
→
X
s
γ
decay rate. So far, the
O
α
s
2
) part of this correction has been known in the heavy charm quark limit only (
m
c
≫
m
b
/
2). Here, we evaluate this part at
m
c
= 0, and use both limits in an updated phenomenological study. Our prediction for the CP- and isospin-averaged branching ratio in the Standard Model reads
ℬ
s
γ
S
M
=
3.36
±
0.23
×
1
0
−
4
for
E
γ
>
1
.
6 GeV.</description><subject>Classical and Quantum Gravitation</subject><subject>Elementary Particles</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Quantum Physics</subject><subject>Regular Article - Theoretical Physics</subject><subject>Relativity Theory</subject><subject>String Theory</subject><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><recordid>eNpjYBA3NNAzNDAw1_fycA0wMNEwMjA01TQ0s2Bi4DQ0MLLUtTAxt-Rg4CouzjIAyhhaGnAyGIVkpCpoBJrrKAQa6hhpKiTn55UUZSaVlmTm5ymU5Cs4HVr_qG1SRPG5zQqJJQr-5zYWG_EwsKYl5hSn8kJpbgYDN9cQZw_d4oKizLz01KL4rPzSojygVLyhQTzIPfEQ98SD3BMPdI8xGVoA-KA_hQ</recordid><startdate>20150429</startdate><enddate>20150429</enddate><creator>Czakon, Michał</creator><creator>Fiedler, Paul</creator><creator>Huber, Tobias</creator><creator>Misiak, Mikołaj</creator><creator>Schutzmeier, Thomas</creator><creator>Steinhauser, Matthias</creator><general>Springer Berlin Heidelberg</general><scope>C6C</scope></search><sort><creationdate>20150429</creationdate><title>The (Q7, Q1,2) contribution to B¯→Xsγ at Oαs2</title><author>Czakon, Michał ; Fiedler, Paul ; Huber, Tobias ; Misiak, Mikołaj ; Schutzmeier, Thomas ; Steinhauser, Matthias</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-springer_journals_10_1007_JHEP04_2015_1683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Classical and Quantum Gravitation</topic><topic>Elementary Particles</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quantum Physics</topic><topic>Regular Article - Theoretical Physics</topic><topic>Relativity Theory</topic><topic>String Theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Czakon, Michał</creatorcontrib><creatorcontrib>Fiedler, Paul</creatorcontrib><creatorcontrib>Huber, Tobias</creatorcontrib><creatorcontrib>Misiak, Mikołaj</creatorcontrib><creatorcontrib>Schutzmeier, Thomas</creatorcontrib><creatorcontrib>Steinhauser, Matthias</creatorcontrib><collection>Springer Nature OA Free Journals</collection><jtitle>The journal of high energy physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Czakon, Michał</au><au>Fiedler, Paul</au><au>Huber, Tobias</au><au>Misiak, Mikołaj</au><au>Schutzmeier, Thomas</au><au>Steinhauser, Matthias</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The (Q7, Q1,2) contribution to B¯→Xsγ at Oαs2</atitle><jtitle>The journal of high energy physics</jtitle><stitle>J. High Energ. Phys</stitle><date>2015-04-29</date><risdate>2015</risdate><volume>2015</volume><issue>4</issue><eissn>1029-8479</eissn><abstract>A
bstract
Interference between the photonic dipole operator
Q
7
and the current-current operators
Q
1,2
gives one of the most important QCD corrections to the (
B
¯
→
X
s
γ
decay rate. So far, the
O
α
s
2
) part of this correction has been known in the heavy charm quark limit only (
m
c
≫
m
b
/
2). Here, we evaluate this part at
m
c
= 0, and use both limits in an updated phenomenological study. Our prediction for the CP- and isospin-averaged branching ratio in the Standard Model reads
ℬ
s
γ
S
M
=
3.36
±
0.23
×
1
0
−
4
for
E
γ
>
1
.
6 GeV.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/JHEP04(2015)168</doi><oa>free_for_read</oa></addata></record> |
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| identifier | EISSN: 1029-8479 |
| ispartof | The journal of high energy physics, 2015-04, Vol.2015 (4) |
| issn | 1029-8479 |
| language | eng |
| recordid | cdi_springer_journals_10_1007_JHEP04_2015_168 |
| source | DOAJ Directory of Open Access Journals; Springer Nature OA Free Journals; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Classical and Quantum Gravitation Elementary Particles Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory String Theory |
| title | The (Q7, Q1,2) contribution to B¯→Xsγ at Oαs2 |
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