750 GeV diphoton excess - Revision history

Vigen at 13:23, 5 February 2026

2026-02-05T13:23:27Z

← Older revision		Revision as of 13:23, 5 February 2026
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	\|collaboration=CMS Collaboration		\|collaboration=CMS Collaboration
	\|year=2016		\|year=2016
	}}</ref> In the interval between the December 2015 and August 2016 results, the anomaly generated considerable interest in the scientific community, including about 500 theoretical studies.<ref>{{Cite journal\|last=Garisto\|first=Robert\|date=2016-04-12\|title=Editorial: Theorists React to the CERN 750 GeV Diphoton Data\|journal=Physical Review Letters\|language=en\|volume=116\|issue=15\|article-number=150001\|doi=10.1103/PhysRevLett.116.150001~~\|bibcode=2016PhRvL.116o0001G \|issn=0031-9007~~\|doi-access=free}}</ref><ref>{{Cite journal\|last1=Cao\|first1=Junjie\|last2=Shang\|first2=Liangliang\|last3=Su\|first3=Wei\|last4=Zhang\|first4=Yang\|last5=Zhu\|first5=Jinya\|year=2016\|title=Interpreting the 750 GeV diphoton excess in the minimal dilaton model\|journal=The European Physical Journal C\|language=en\|volume=76\|issue=5\|page=239\|doi=10.1140/epjc/s10052-016-4098-5\|arxiv=1601.02570 ~~\|bibcode=2016EPJC...76..239C \|issn=1434-6044~~\|doi-access=free}}</ref><ref name=":0">		}}</ref> In the interval between the December 2015 and August 2016 results, the anomaly generated considerable interest in the scientific community, including about 500 theoretical studies.<ref>{{Cite journal\|last=Garisto\|first=Robert\|date=2016-04-12\|title=Editorial: Theorists React to the CERN 750 GeV Diphoton Data\|journal=Physical Review Letters\|language=en\|volume=116\|issue=15\|article-number=150001\|doi=10.1103/PhysRevLett.116.150001\|doi-access=free}}</ref><ref>{{Cite journal\|last1=Cao\|first1=Junjie\|last2=Shang\|first2=Liangliang\|last3=Su\|first3=Wei\|last4=Zhang\|first4=Yang\|last5=Zhu\|first5=Jinya\|year=2016\|title=Interpreting the 750 GeV diphoton excess in the minimal dilaton model\|journal=The European Physical Journal C\|language=en\|volume=76\|issue=5\|page=239\|doi=10.1140/epjc/s10052-016-4098-5\|arxiv=1601.02570\|doi-access=free}}</ref><ref name=":0">
	{{cite web		{{cite web
	\|title=#Run2Seminar and subsequent γγ-related arXiv submissions		\|title=#Run2Seminar and subsequent γγ-related arXiv submissions
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	\|website=jsfiddle.net		\|website=jsfiddle.net
	\|access-date=2016-08-11		\|access-date=2016-08-11
	}}</ref><ref>{{Cite web\|date=2021-01-14\|title=A decade in LHC publications\|url=https://cerncourier.com/a/a-decade-in-lhc-publications/\|access-date=2021-01-15\|website=CERN Courier\|language=en-GB}}</ref> The hypothetical particle was denoted by the Greek letter [[wikipedia:Digamma\|Ϝ]] (pronounced digamma) in the scientific literature, owing to the decay channel in which the anomaly occurred.<ref name='1605.09401'>		}}</ref><ref>{{Cite web\|date=2021-01-14\|title=A decade in LHC publications\|url=https://cerncourier.com/a/a-decade-in-lhc-publications/\|access-date=2021-01-15\|website=CERN Courier\|language=en-GB}}</ref> The hypothetical particle was denoted by the Greek letter [[wikipedia:Digamma\|Ϝ]] (pronounced digamma) in the scientific literature, owing to the decay channel in which the anomaly occurred.<ref name="1605.09401">
	~~{{cite arXiv~~		Strumia, Alessandro (5 Aug 2016). "Interpreting the 750 GeV digamma excess: A review". [https://arxiv.org/abs/1605.09401 arXiv:1605.09401].</ref> The data, however, were always less than five standard deviations (sigma) different from that expected if there was no new particle, and, as such, the anomaly never reached the accepted level of statistical significance required to announce a discovery in particle physics.<ref>
	~~\|last1=~~Strumia ~~\|first1=~~Alessandro		Lyons, Louis (4 Oct 2013). "Discovering the Significance of 5 sigma". [https://arxiv.org/abs/1310.1284 <nowiki>arXiv:1310.1284 [physics.data-an]</nowiki>].</ref> After the August 2016 results, interest in the anomaly sank as it was considered a statistical fluctuation.<ref>
	~~\|date=~~5 Aug 2016
	~~\|title=~~Interpreting the 750 GeV digamma excess: A review
	~~\|eprint=~~1605.09401
	~~\|class=hep-ph~~
	}}</ref> The data, however, were always less than five standard deviations (sigma) different from that expected if there was no new particle, and, as such, the anomaly never reached the accepted level of statistical significance required to announce a discovery in particle physics.<ref>
	~~{{cite arXiv~~
	~~\|last1=~~Lyons ~~\|first1=~~Louis
	~~\|date=~~4 Oct 2013
	~~\|title=~~Discovering the Significance of 5 sigma
	~~\|eprint=~~1310.1284
	~~\|class=~~physics.data-an
	}}</ref> After the August 2016 results, interest in the anomaly sank as it was considered a statistical fluctuation.<ref>
	{{cite journal		{{cite journal
	\|last1=Coldham \|first1=K.		\|last1=Coldham \|first1=K.
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	\|website=CERN Document Server		\|website=CERN Document Server
	\|access-date=26 January 2017		\|access-date=26 January 2017
	}}</ref>		}}</ref> Indeed, a Bayesian analysis of the anomaly found that whilst data collected in 2015 constituted "''substantial''" evidence for the digamma on the Jeffreys scale, data collected in 2016 combined with that collected in 2015 was evidence against the digamma.<ref>{{cite journal\|last1=Fowlie\|first1=Andrew\|title=Bayes-factor of the ATLAS diphoton excess\|journal=The European Physical Journal Plus\|date=2016\|volume=132\|issue=1\|page=46\|doi=10.1140/epjp/i2017-11340-1\|arxiv=1607.06608}}</ref>
	Indeed, a ~~[[Bayesian statistics\|~~Bayesian analysis]] of the anomaly found that whilst data collected in 2015 constituted "''substantial''" evidence for the digamma on the Jeffreys scale, data collected in 2016 combined with that collected in 2015 was evidence against the digamma.<ref>{{cite journal\|last1=Fowlie\|first1=Andrew\|title=Bayes-factor of the ATLAS diphoton excess\|journal=The European Physical Journal Plus\|date=2016\|volume=132\|issue=1\|page=46\|doi=10.1140/epjp/i2017-11340-1\|arxiv=1607.06608~~\|issn=2190-5444\|bibcode = 2017EPJP..132...46F \|s2cid=119305800~~ }}</ref>

	For more information, see [[wikipedia:750 GeV diphoton excess\|Wikipedia]].		For more information, see [[wikipedia:750 GeV diphoton excess\|Wikipedia]].
	~~<references />~~
			==References==
			{{reflist}}

	[[Category:Fun facts and anecdotes]]		[[Category:Fun facts and anecdotes]]
			[[Category:Pages linking to Wikipedia]]

Vigen: Created page with "The '''750 GeV diphoton excess''' in particle physics was an anomaly in data collected at the Large Hadron Collider (LHC) in 2015, which could have been an indication of a new particle or resonance. {{cite journal|last1=Aaboud |first1=M. |collaboration=ATLAS Collaboration |display-authors=etal |date=September 2016 |title=Search for resonances in diphoton events at √s = 13 TeV with the ATLAS detector |journal=Journal of High Energy P..."

2026-02-05T13:11:22Z

Created page with "The '''750 GeV diphoton excess''' in particle physics was an anomaly in data collected at the Large Hadron Collider (LHC) in 2015, which could have been an indication of a new particle or resonance.<ref name='1606.03833'> {{cite journal|last1=Aaboud |first1=M. |collaboration=ATLAS Collaboration |display-authors=etal |date=September 2016 |title=Search for resonances in diphoton events at √s = 13 TeV with the ATLAS detector |journal=Journal of High Energy P..."

New page

The '''750 GeV diphoton excess''' in particle physics was an anomaly in data collected at the [[Large Hadron Collider]] (LHC) in 2015, which could have been an indication of a new particle or resonance.<ref name='1606.03833'>
{{cite journal|last1=Aaboud |first1=M.
|collaboration=ATLAS Collaboration
|display-authors=etal
|date=September 2016
|title=Search for resonances in diphoton events at √s = 13 TeV with the ATLAS detector
|journal=Journal of High Energy Physics
|volume=2016 |issue=9 |page=001
|arxiv=1606.03833
|bibcode=2016JHEP...09..001A
|doi=10.1007/JHEP09(2016)001
|doi-access=free
}}</ref><ref name="1606.04093">
{{cite journal|last1=Khachatryan|first1=V.|last2=Sirunyan|first2=A. M.|last3=Tumasyan|first3=A.|last4=Adam|first4=W.|last5=Asilar|first5=E.|last6=Bergauer|first6=T.|last7=Brandstetter|first7=J.|last8=Brondolin|first8=E.|last9=Dragicevic|first9=M.|collaboration=CMS Collaboration|date=28 July 2016|title=Search for resonant production of high-mass photon pairs in proton-proton collisions at √s = 8 and 13 TeV|journal=[[Physical Review Letters]]|volume=117|issue=5|article-number=051802|arxiv=1606.04093|bibcode=|doi=10.1103/PhysRevLett.117.051802|pmid=|s2cid=207852166}}</ref> The anomaly was absent in data collected in 2016, suggesting that the diphoton excess was a statistical fluctuation.<ref name='CMS-PAS-EXO-16-027'>
{{cite web
|title=Search for resonant production of high mass photon pairs using 12.9 fb<sup>−1</sup> of proton-proton collisions at √s = 13 TeV and combined interpretation of searches at 8 and 13 TeV
|date=2016
|url=https://cds.cern.ch/record/2205245
|via=CERN Document Server
|collaboration=CMS Collaboration
}}</ref><ref name='ATLAS-CONF-2016-059'>
{{cite book
|title=Search for scalar diphoton resonances with 15.4 fb<sup>−1</sup> of data collected at √s = 13 TeV in 2015 and 2016 with the ATLAS detector
|url=https://cds.cern.ch/record/2206154
|via=CERN Document Server
|collaboration=CMS Collaboration
|year=2016
}}</ref> In the interval between the December 2015 and August 2016 results, the anomaly generated considerable interest in the scientific community, including about 500 theoretical studies.<ref>{{Cite journal|last=Garisto|first=Robert|date=2016-04-12|title=Editorial: Theorists React to the CERN 750 GeV Diphoton Data|journal=Physical Review Letters|language=en|volume=116|issue=15|article-number=150001|doi=10.1103/PhysRevLett.116.150001|bibcode=2016PhRvL.116o0001G |issn=0031-9007|doi-access=free}}</ref><ref>{{Cite journal|last1=Cao|first1=Junjie|last2=Shang|first2=Liangliang|last3=Su|first3=Wei|last4=Zhang|first4=Yang|last5=Zhu|first5=Jinya|year=2016|title=Interpreting the 750 GeV diphoton excess in the minimal dilaton model|journal=The European Physical Journal C|language=en|volume=76|issue=5|page=239|doi=10.1140/epjc/s10052-016-4098-5|arxiv=1601.02570 |bibcode=2016EPJC...76..239C |issn=1434-6044|doi-access=free}}</ref><ref name=":0">
{{cite web
|title=#Run2Seminar and subsequent γγ-related arXiv submissions
|url=http://jsfiddle.net/adavid/bk2tmc2m/show/
|website=jsfiddle.net
|access-date=2016-08-11
}}</ref><ref>{{Cite web|date=2021-01-14|title=A decade in LHC publications|url=https://cerncourier.com/a/a-decade-in-lhc-publications/|access-date=2021-01-15|website=CERN Courier|language=en-GB}}</ref> The hypothetical particle was denoted by the Greek letter [[wikipedia:Digamma|Ϝ]] (pronounced digamma) in the scientific literature, owing to the decay channel in which the anomaly occurred.<ref name='1605.09401'>
{{cite arXiv
|last1=Strumia |first1=Alessandro
|date=5 Aug 2016
|title=Interpreting the 750 GeV digamma excess: A review
|eprint=1605.09401
|class=hep-ph
}}</ref> The data, however, were always less than five standard deviations (sigma) different from that expected if there was no new particle, and, as such, the anomaly never reached the accepted level of statistical significance required to announce a discovery in particle physics.<ref>
{{cite arXiv
|last1=Lyons |first1=Louis
|date=4 Oct 2013
|title=Discovering the Significance of 5 sigma
|eprint=1310.1284
|class=physics.data-an
}}</ref> After the August 2016 results, interest in the anomaly sank as it was considered a statistical fluctuation.<ref>
{{cite journal
|last1=Coldham |first1=K.
|date=2016-08-05
|title=Chicago sees floods of LHC data and new results at ICHEP
|url=https://cds.cern.ch/record/2212324
|website=CERN Document Server
|access-date=26 January 2017
}}</ref>
Indeed, a [[Bayesian statistics|Bayesian analysis]] of the anomaly found that whilst data collected in 2015 constituted "''substantial''" evidence for the digamma on the Jeffreys scale, data collected in 2016 combined with that collected in 2015 was evidence against the digamma.<ref>{{cite journal|last1=Fowlie|first1=Andrew|title=Bayes-factor of the ATLAS diphoton excess|journal=The European Physical Journal Plus|date=2016|volume=132|issue=1|page=46|doi=10.1140/epjp/i2017-11340-1|arxiv=1607.06608|issn=2190-5444|bibcode = 2017EPJP..132...46F |s2cid=119305800 }}</ref>

For more information, see [[wikipedia:750 GeV diphoton excess|Wikipedia]].
<references />
[[Category:Fun facts and anecdotes]]