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The heavy quark expansion for inclusive semileptonic charm decays revisited
A bstract The Heavy Quark Expansion (HQE) has become an extremely powerful tool in flavor physics. For charm decays, where the expansion parameters α s ( m c ) and Λ QCD /m c are bigger than for bottom decays, it remains to be seen if the HQE can be applied with similar success. Nevertheless, to mak...
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| Published in: | The journal of high energy physics 2019-12, Vol.2019 (12), p.1-28, Article 67 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c444t-974d826e643bb635d28d23bbc4243a7a85053e09d44f76811339e821ec1de19a3 |
| container_end_page | 28 |
| container_issue | 12 |
| container_start_page | 1 |
| container_title | The journal of high energy physics |
| container_volume | 2019 |
| creator | Fael, Matteo Mannel, Thomas Vos, K. Keri |
| description | A
bstract
The Heavy Quark Expansion (HQE) has become an extremely powerful tool in flavor physics. For charm decays, where the expansion parameters
α
s
(
m
c
) and Λ
QCD
/m
c
are bigger than for bottom decays, it remains to be seen if the HQE can be applied with similar success. Nevertheless, to make optimal use of the plethora of data already available and coming in the near future, a better understanding of HQE for charm decays is crucial. This paper discusses in detail how the HQE for charm decays is set up, what is the role of four-quark (weak annihilation) operators and how this compares to the well understood bottom decays. Subtleties concerning radiative corrections and the charm mass scheme are briefly discussed. An experimental study of the relevant HQE hadronic matrix elements will then show if the HQE expansion for charm converges well enough. Besides serving as an important cross check for inclusive
B
decays, in the end, this study might open the road for inclusive
|V
cs
|
and
|V
cd
|
extractions. |
| doi_str_mv | 10.1007/JHEP12(2019)067 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_doaj_</sourceid><recordid>TN_cdi_doaj_primary_oai_doaj_org_article_af178d38183747a9af50710dfe38e229</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><doaj_id>oai_doaj_org_article_af178d38183747a9af50710dfe38e229</doaj_id><sourcerecordid>2324793811</sourcerecordid><originalsourceid>FETCH-LOGICAL-c444t-974d826e643bb635d28d23bbc4243a7a85053e09d44f76811339e821ec1de19a3</originalsourceid><addsrcrecordid>eNp1UcFOGzEUtFCRoIEzV6u9tIcUP9u7to8ookCJBAc4W8Z-SxySdbB3o-bv2XSr0gunN3qaGb15Q8gZsB_AmDr_dX15D_wbZ2C-s1odkGNg3Ey1VObTf_iIfC5lyRhUYNgxuX1YIF2g2-7oa-_yC8XfG9eWmFrapExj61d9iVukBddxhZsutdFTv3B5TQN6tys04zaW2GE4IYeNWxU8_Tsn5PHn5cPsejq_u7qZXcynXkrZTY2SQfMaaymenmpRBa4DH6CXXAqnnK5YJZCZIGWjag0ghEHNAT0EBOPEhNyMviG5pd3kuHZ5Z5OL9s8i5Wfrchf9Cq1rQOkgNGihpHLGNRVTwEKDQiPnZvD6Mnql0kVb_JDDL3xqW_SdBWWMqfekryNpk9Nrj6Wzy9TndshoueDDU8X-ygk5H1k-p1IyNv9OA2b3FdmxIruvyA4VDQo2KsrAbJ8xv_t-JHkDBFaRUQ</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2324793811</pqid></control><display><type>article</type><title>The heavy quark expansion for inclusive semileptonic charm decays revisited</title><source>Access via ProQuest (Open Access)</source><source>Springer Nature - SpringerLink Journals - Fully Open Access</source><creator>Fael, Matteo ; Mannel, Thomas ; Vos, K. Keri</creator><creatorcontrib>Fael, Matteo ; Mannel, Thomas ; Vos, K. Keri ; Univ. of Washington, Seattle, WA (United States)</creatorcontrib><description>A
bstract
The Heavy Quark Expansion (HQE) has become an extremely powerful tool in flavor physics. For charm decays, where the expansion parameters
α
s
(
m
c
) and Λ
QCD
/m
c
are bigger than for bottom decays, it remains to be seen if the HQE can be applied with similar success. Nevertheless, to make optimal use of the plethora of data already available and coming in the near future, a better understanding of HQE for charm decays is crucial. This paper discusses in detail how the HQE for charm decays is set up, what is the role of four-quark (weak annihilation) operators and how this compares to the well understood bottom decays. Subtleties concerning radiative corrections and the charm mass scheme are briefly discussed. An experimental study of the relevant HQE hadronic matrix elements will then show if the HQE expansion for charm converges well enough. Besides serving as an important cross check for inclusive
B
decays, in the end, this study might open the road for inclusive
|V
cs
|
and
|V
cd
|
extractions.</description><identifier>ISSN: 1029-8479</identifier><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP12(2019)067</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>ASTRONOMY AND ASTROPHYSICS ; Charm (particle physics) ; Classical and Quantum Gravitation ; Elementary Particles ; Heavy Quark Physics ; High energy physics ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Quark Masses and SM Parameters ; Regular Article - Theoretical Physics ; Relativity Theory ; String Theory</subject><ispartof>The journal of high energy physics, 2019-12, Vol.2019 (12), p.1-28, Article 67</ispartof><rights>The Author(s) 2019</rights><rights>Journal of High Energy Physics is a copyright of Springer, (2019). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c444t-974d826e643bb635d28d23bbc4243a7a85053e09d44f76811339e821ec1de19a3</citedby><cites>FETCH-LOGICAL-c444t-974d826e643bb635d28d23bbc4243a7a85053e09d44f76811339e821ec1de19a3</cites><orcidid>0000-0002-4541-9636 ; 0000000245419636</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2324793811/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2324793811?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,780,784,885,25753,27924,27925,37012,44590,75126</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1799969$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Fael, Matteo</creatorcontrib><creatorcontrib>Mannel, Thomas</creatorcontrib><creatorcontrib>Vos, K. Keri</creatorcontrib><creatorcontrib>Univ. of Washington, Seattle, WA (United States)</creatorcontrib><title>The heavy quark expansion for inclusive semileptonic charm decays revisited</title><title>The journal of high energy physics</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
The Heavy Quark Expansion (HQE) has become an extremely powerful tool in flavor physics. For charm decays, where the expansion parameters
α
s
(
m
c
) and Λ
QCD
/m
c
are bigger than for bottom decays, it remains to be seen if the HQE can be applied with similar success. Nevertheless, to make optimal use of the plethora of data already available and coming in the near future, a better understanding of HQE for charm decays is crucial. This paper discusses in detail how the HQE for charm decays is set up, what is the role of four-quark (weak annihilation) operators and how this compares to the well understood bottom decays. Subtleties concerning radiative corrections and the charm mass scheme are briefly discussed. An experimental study of the relevant HQE hadronic matrix elements will then show if the HQE expansion for charm converges well enough. Besides serving as an important cross check for inclusive
B
decays, in the end, this study might open the road for inclusive
|V
cs
|
and
|V
cd
|
extractions.</description><subject>ASTRONOMY AND ASTROPHYSICS</subject><subject>Charm (particle physics)</subject><subject>Classical and Quantum Gravitation</subject><subject>Elementary Particles</subject><subject>Heavy Quark Physics</subject><subject>High energy physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Quantum Physics</subject><subject>Quark Masses and SM Parameters</subject><subject>Regular Article - Theoretical Physics</subject><subject>Relativity Theory</subject><subject>String Theory</subject><issn>1029-8479</issn><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNp1UcFOGzEUtFCRoIEzV6u9tIcUP9u7to8ookCJBAc4W8Z-SxySdbB3o-bv2XSr0gunN3qaGb15Q8gZsB_AmDr_dX15D_wbZ2C-s1odkGNg3Ey1VObTf_iIfC5lyRhUYNgxuX1YIF2g2-7oa-_yC8XfG9eWmFrapExj61d9iVukBddxhZsutdFTv3B5TQN6tys04zaW2GE4IYeNWxU8_Tsn5PHn5cPsejq_u7qZXcynXkrZTY2SQfMaaymenmpRBa4DH6CXXAqnnK5YJZCZIGWjag0ghEHNAT0EBOPEhNyMviG5pd3kuHZ5Z5OL9s8i5Wfrchf9Cq1rQOkgNGihpHLGNRVTwEKDQiPnZvD6Mnql0kVb_JDDL3xqW_SdBWWMqfekryNpk9Nrj6Wzy9TndshoueDDU8X-ygk5H1k-p1IyNv9OA2b3FdmxIruvyA4VDQo2KsrAbJ8xv_t-JHkDBFaRUQ</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Fael, Matteo</creator><creator>Mannel, Thomas</creator><creator>Vos, K. Keri</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><general>Springer Berlin</general><general>SpringerOpen</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</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>HCIFZ</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>OIOZB</scope><scope>OTOTI</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-4541-9636</orcidid><orcidid>https://orcid.org/0000000245419636</orcidid></search><sort><creationdate>20191201</creationdate><title>The heavy quark expansion for inclusive semileptonic charm decays revisited</title><author>Fael, Matteo ; Mannel, Thomas ; Vos, K. Keri</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c444t-974d826e643bb635d28d23bbc4243a7a85053e09d44f76811339e821ec1de19a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>ASTRONOMY AND ASTROPHYSICS</topic><topic>Charm (particle physics)</topic><topic>Classical and Quantum Gravitation</topic><topic>Elementary Particles</topic><topic>Heavy Quark Physics</topic><topic>High energy physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quantum Physics</topic><topic>Quark Masses and SM Parameters</topic><topic>Regular Article - Theoretical Physics</topic><topic>Relativity Theory</topic><topic>String Theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fael, Matteo</creatorcontrib><creatorcontrib>Mannel, Thomas</creatorcontrib><creatorcontrib>Vos, K. Keri</creatorcontrib><creatorcontrib>Univ. of Washington, Seattle, WA (United States)</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</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>SciTech Premium Collection</collection><collection>ProQuest advanced technologies & aerospace journals</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</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><collection>Directory of Open Access Journals</collection><jtitle>The journal of high energy physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fael, Matteo</au><au>Mannel, Thomas</au><au>Vos, K. Keri</au><aucorp>Univ. of Washington, Seattle, WA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The heavy quark expansion for inclusive semileptonic charm decays revisited</atitle><jtitle>The journal of high energy physics</jtitle><stitle>J. High Energ. Phys</stitle><date>2019-12-01</date><risdate>2019</risdate><volume>2019</volume><issue>12</issue><spage>1</spage><epage>28</epage><pages>1-28</pages><artnum>67</artnum><issn>1029-8479</issn><eissn>1029-8479</eissn><abstract>A
bstract
The Heavy Quark Expansion (HQE) has become an extremely powerful tool in flavor physics. For charm decays, where the expansion parameters
α
s
(
m
c
) and Λ
QCD
/m
c
are bigger than for bottom decays, it remains to be seen if the HQE can be applied with similar success. Nevertheless, to make optimal use of the plethora of data already available and coming in the near future, a better understanding of HQE for charm decays is crucial. This paper discusses in detail how the HQE for charm decays is set up, what is the role of four-quark (weak annihilation) operators and how this compares to the well understood bottom decays. Subtleties concerning radiative corrections and the charm mass scheme are briefly discussed. An experimental study of the relevant HQE hadronic matrix elements will then show if the HQE expansion for charm converges well enough. Besides serving as an important cross check for inclusive
B
decays, in the end, this study might open the road for inclusive
|V
cs
|
and
|V
cd
|
extractions.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/JHEP12(2019)067</doi><tpages>28</tpages><orcidid>https://orcid.org/0000-0002-4541-9636</orcidid><orcidid>https://orcid.org/0000000245419636</orcidid><oa>free_for_read</oa></addata></record> |
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| issn | 1029-8479 1029-8479 |
| language | eng |
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| source | Access via ProQuest (Open Access); Springer Nature - SpringerLink Journals - Fully Open Access |
| subjects | ASTRONOMY AND ASTROPHYSICS Charm (particle physics) Classical and Quantum Gravitation Elementary Particles Heavy Quark Physics High energy physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Quark Masses and SM Parameters Regular Article - Theoretical Physics Relativity Theory String Theory |
| title | The heavy quark expansion for inclusive semileptonic charm decays revisited |
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