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An even lighter QCD axion
A bstract We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The Z N symmetry proposed by Hook, with N mirror and degenerate worlds coexisting in Nature and linked by the axion field, is considered in terms of generic effective...
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| Published in: | The journal of high energy physics 2021-05, Vol.2021 (5), p.1-36, Article 184 |
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| Main Authors: | , , , |
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| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c529t-d3ec579659f33be4ed59994c0a1e4d707384fce91be197789be8dc22501f43433 |
| container_end_page | 36 |
| container_issue | 5 |
| container_start_page | 1 |
| container_title | The journal of high energy physics |
| container_volume | 2021 |
| creator | Di Luzio, Luca Gavela, Belen Quilez, Pablo Ringwald, Andreas |
| description | A
bstract
We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The
Z
N
symmetry proposed by Hook, with
N
mirror and degenerate worlds coexisting in Nature and linked by the axion field, is considered in terms of generic effective axion couplings. We show that the total potential is safely approximated by a single cosine in the large
N
limit, and we determine the analytical formula for the exponentially suppressed axion mass. The resulting universal enhancement of all axion interactions relative to those of the canonical QCD axion has a strong impact on the prospects of axion-like particle experiments such as ALPS II, IAXO and many others: experiments searching for generic axion-like particles have in fact discovery potential to solve the strong CP problem. The finite density axion potential is also analyzed and we show that the
Z
N
asymmetric background of high-density stellar environments sets already significant model-independent constraints: 3 ≤
N
≲ 47 for an axion scale
f
a
≲ 2
.
4 × 10
15
GeV, with tantalizing discovery prospects for any value of
f
a
and down to
N
∼ 9 with future neutron star and gravitational wave data, down to the ultra-light mass region. In addition, two specific ultraviolet
Z
N
completions are developed: a composite axion one and a KSVZ-like model with improved Peccei-Quinn quality. |
| doi_str_mv | 10.1007/JHEP05(2021)184 |
| format | article |
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bstract
We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The
Z
N
symmetry proposed by Hook, with
N
mirror and degenerate worlds coexisting in Nature and linked by the axion field, is considered in terms of generic effective axion couplings. We show that the total potential is safely approximated by a single cosine in the large
N
limit, and we determine the analytical formula for the exponentially suppressed axion mass. The resulting universal enhancement of all axion interactions relative to those of the canonical QCD axion has a strong impact on the prospects of axion-like particle experiments such as ALPS II, IAXO and many others: experiments searching for generic axion-like particles have in fact discovery potential to solve the strong CP problem. The finite density axion potential is also analyzed and we show that the
Z
N
asymmetric background of high-density stellar environments sets already significant model-independent constraints: 3 ≤
N
≲ 47 for an axion scale
f
a
≲ 2
.
4 × 10
15
GeV, with tantalizing discovery prospects for any value of
f
a
and down to
N
∼ 9 with future neutron star and gravitational wave data, down to the ultra-light mass region. In addition, two specific ultraviolet
Z
N
completions are developed: a composite axion one and a KSVZ-like model with improved Peccei-Quinn quality.</description><identifier>ISSN: 1029-8479</identifier><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP05(2021)184</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Beyond Standard Model ; Chiral Lagrangians ; Classical and Quantum Gravitation ; Constraint modelling ; Couplings ; CP violation ; Density ; Discrete Symmetries ; Elementary Particles ; Gravitational waves ; High energy physics ; Neutron stars ; Physics ; Physics and Astronomy ; Quantum chromodynamics ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Regular Article - Theoretical Physics ; Relativity Theory ; String Theory</subject><ispartof>The journal of high energy physics, 2021-05, Vol.2021 (5), p.1-36, Article 184</ispartof><rights>The Author(s) 2021</rights><rights>The Author(s) 2021. This work is published under CC-BY 4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c529t-d3ec579659f33be4ed59994c0a1e4d707384fce91be197789be8dc22501f43433</citedby><cites>FETCH-LOGICAL-c529t-d3ec579659f33be4ed59994c0a1e4d707384fce91be197789be8dc22501f43433</cites><orcidid>0000-0002-4327-2706</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2530262808/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2530262808?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,25753,27924,27925,37012,44590,75126</link.rule.ids></links><search><creatorcontrib>Di Luzio, Luca</creatorcontrib><creatorcontrib>Gavela, Belen</creatorcontrib><creatorcontrib>Quilez, Pablo</creatorcontrib><creatorcontrib>Ringwald, Andreas</creatorcontrib><title>An even lighter QCD axion</title><title>The journal of high energy physics</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The
Z
N
symmetry proposed by Hook, with
N
mirror and degenerate worlds coexisting in Nature and linked by the axion field, is considered in terms of generic effective axion couplings. We show that the total potential is safely approximated by a single cosine in the large
N
limit, and we determine the analytical formula for the exponentially suppressed axion mass. The resulting universal enhancement of all axion interactions relative to those of the canonical QCD axion has a strong impact on the prospects of axion-like particle experiments such as ALPS II, IAXO and many others: experiments searching for generic axion-like particles have in fact discovery potential to solve the strong CP problem. The finite density axion potential is also analyzed and we show that the
Z
N
asymmetric background of high-density stellar environments sets already significant model-independent constraints: 3 ≤
N
≲ 47 for an axion scale
f
a
≲ 2
.
4 × 10
15
GeV, with tantalizing discovery prospects for any value of
f
a
and down to
N
∼ 9 with future neutron star and gravitational wave data, down to the ultra-light mass region. In addition, two specific ultraviolet
Z
N
completions are developed: a composite axion one and a KSVZ-like model with improved Peccei-Quinn quality.</description><subject>Beyond Standard Model</subject><subject>Chiral Lagrangians</subject><subject>Classical and Quantum Gravitation</subject><subject>Constraint modelling</subject><subject>Couplings</subject><subject>CP violation</subject><subject>Density</subject><subject>Discrete Symmetries</subject><subject>Elementary Particles</subject><subject>Gravitational waves</subject><subject>High energy physics</subject><subject>Neutron stars</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum chromodynamics</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><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNp1kM1Lw0AQxRdRsFbP4i3gRQ-xs1_Z3WNpq60UVNDzst1MakpN6iYV_e_dGlEvXmaG4b3fDI-QUwpXFEANbqeTe5AXDBi9pFrskR4FZlItlNn_Mx-So6ZZAVBJDfTI2bBK8A2rZF0un1sMycNonLj3sq6OyUHh1g2efPc-ebqePI6m6fzuZjYazlMvmWnTnKOXymTSFJwvUGAujTHCg6MocgWKa1F4NHSB1CilzQJ17hmTQAvBBed9Muu4ee1WdhPKFxc-bO1K-7Wow9K60JZ-jVbnudPcCIOx0EzEQ1CAUdrpzCnuI-u8Y21C_brFprWrehuq-L5lkgPLmAYdVYNO5UPdNAGLn6sU7C5L22Vpd1namGV0QOdoorJaYvjl_mf5BIYHcXo</recordid><startdate>20210501</startdate><enddate>20210501</enddate><creator>Di Luzio, Luca</creator><creator>Gavela, Belen</creator><creator>Quilez, Pablo</creator><creator>Ringwald, Andreas</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</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>DOA</scope><orcidid>https://orcid.org/0000-0002-4327-2706</orcidid></search><sort><creationdate>20210501</creationdate><title>An even lighter QCD axion</title><author>Di Luzio, Luca ; Gavela, Belen ; Quilez, Pablo ; Ringwald, Andreas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c529t-d3ec579659f33be4ed59994c0a1e4d707384fce91be197789be8dc22501f43433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Beyond Standard Model</topic><topic>Chiral Lagrangians</topic><topic>Classical and Quantum Gravitation</topic><topic>Constraint modelling</topic><topic>Couplings</topic><topic>CP violation</topic><topic>Density</topic><topic>Discrete Symmetries</topic><topic>Elementary Particles</topic><topic>Gravitational waves</topic><topic>High energy physics</topic><topic>Neutron stars</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum chromodynamics</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>Di Luzio, Luca</creatorcontrib><creatorcontrib>Gavela, Belen</creatorcontrib><creatorcontrib>Quilez, Pablo</creatorcontrib><creatorcontrib>Ringwald, Andreas</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>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</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>DOAJ 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>Di Luzio, Luca</au><au>Gavela, Belen</au><au>Quilez, Pablo</au><au>Ringwald, Andreas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An even lighter QCD axion</atitle><jtitle>The journal of high energy physics</jtitle><stitle>J. High Energ. Phys</stitle><date>2021-05-01</date><risdate>2021</risdate><volume>2021</volume><issue>5</issue><spage>1</spage><epage>36</epage><pages>1-36</pages><artnum>184</artnum><issn>1029-8479</issn><eissn>1029-8479</eissn><abstract>A
bstract
We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The
Z
N
symmetry proposed by Hook, with
N
mirror and degenerate worlds coexisting in Nature and linked by the axion field, is considered in terms of generic effective axion couplings. We show that the total potential is safely approximated by a single cosine in the large
N
limit, and we determine the analytical formula for the exponentially suppressed axion mass. The resulting universal enhancement of all axion interactions relative to those of the canonical QCD axion has a strong impact on the prospects of axion-like particle experiments such as ALPS II, IAXO and many others: experiments searching for generic axion-like particles have in fact discovery potential to solve the strong CP problem. The finite density axion potential is also analyzed and we show that the
Z
N
asymmetric background of high-density stellar environments sets already significant model-independent constraints: 3 ≤
N
≲ 47 for an axion scale
f
a
≲ 2
.
4 × 10
15
GeV, with tantalizing discovery prospects for any value of
f
a
and down to
N
∼ 9 with future neutron star and gravitational wave data, down to the ultra-light mass region. In addition, two specific ultraviolet
Z
N
completions are developed: a composite axion one and a KSVZ-like model with improved Peccei-Quinn quality.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/JHEP05(2021)184</doi><tpages>36</tpages><orcidid>https://orcid.org/0000-0002-4327-2706</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | The journal of high energy physics, 2021-05, Vol.2021 (5), p.1-36, Article 184 |
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| subjects | Beyond Standard Model Chiral Lagrangians Classical and Quantum Gravitation Constraint modelling Couplings CP violation Density Discrete Symmetries Elementary Particles Gravitational waves High energy physics Neutron stars Physics Physics and Astronomy Quantum chromodynamics Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory String Theory |
| title | An even lighter QCD axion |
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