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The '''TOTEM experiment''' ('''TOTal Elastic and diffractive cross section Measurement''') is one of the nine detector experiments at [[CERN]]'s [[Large Hadron Collider]]. The other eight are: [[ATLAS experiment|ATLAS]], [[ALICE experiment|ALICE]], [[Compact Muon Solenoid|CMS]], [[LHCb experiment|LHCb]], [[LHCf experiment|LHCf]], [[MoEDAL experiment|MoEDAL]], [[FASER experiment|FASER]] and [[SND|SND@LHC]]. It shares an [[LHC collision points|interaction point]] with CMS. The detector aims at measurement of total cross section, elastic scattering, and diffraction processes. The primary instrument of the detector is referred to as a Roman pot. In December 2020, the D0 and TOTEM Collaborations made public the odderon discovery based on a purely data driven approach in a CERN and Fermilab approved preprint that was later published in Physical Review Letters.<ref name="Abazov Abbott Acharya et al 2021">{{cite journal |last1=Abazov |first1=V. 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D. |last444=Wang |first444=C. |last445=Wang |first445=M. H. L. S. |last446=Warchol |first446=J. |last447=Watts |first447=G. |last448=Wayne |first448=M. |last449=Weichert |first449=J. |last450=Welti |first450=J. |last451=Welty-Rieger |first451=L. |last452=Williams |first452=J. |last453=Williams |first453=M. R. J. |last454=Wilson |first454=G. W. |last455=Wobisch |first455=M. |last456=Wood |first456=D. R. |last457=Wyatt |first457=T. R. |last458=Xie |first458=Y. |last459=Yamada |first459=R. |last460=Yang |first460=S. |last461=Yasuda |first461=T. |last462=Yatsunenko |first462=Y. A. |last463=Ye |first463=W. |last464=Ye |first464=Z. |last465=Yin |first465=H. |last466=Yip |first466=K. |last467=Youn |first467=S. W. |last468=Yu |first468=J. M. |last469=Zennamo |first469=J. |last470=Zhao |first470=T. G. |last471=Zhou |first471=B. |last472=Zhu |first472=J. |last473=Zich |first473=J. |last474=Zielinski |first474=K. |last475=Zielinski |first475=M. |last476=Zieminska |first476=D. |last477=Zivkovic |first477=L. |title=Odderon Exchange from Elastic Scattering Differences between pp and ppbar Data at 1.96 TeV and from pp Forward Scattering Measurements |journal=Physical Review Letters |date=4 August 2021 |volume=127 |issue=6 |article-number=062003 |doi=10.1103/PhysRevLett.127.062003 |pmid=34420329 |arxiv=2012.03981 |bibcode=2021PhRvL.127f2003A |s2cid=227737845 }}</ref> In this experimental observation, the TOTEM proton-proton data in the region of the diffractive minimum and maximum was extrapolated from 13, 8, 7 and 2.76 TeV to 1.96 TeV and compared this to D0 data at 1.96 TeV in the same t-range giving an odderon significance of 3.4 σ. When combined with TOTEM experimental data at 13 TeV at small scattering angles providing an odderon significance of 3.4–4.6 σ, the combination resulted in an odderon significance of at least 5.2 σ.<ref>{{Cite web |date=2021-03-09 |title=Odderon discovered|url=https://cerncourier.com/a/odderon-discovered/ |access-date=2022-02-11 |website=CERN Courier |language=en-GB}}</ref> | |||
The '''TOTEM experiment''' ('''TOTal Elastic and diffractive cross section Measurement''') is one of the nine | |||
For more information, see [[wikipedia:TOTEM experiment|Wikipedia]]. | |||
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==References== | ==References== | ||
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|year=2008 | |year=2008 | ||
|title=The TOTEM Experiment at the CERN Large Hadron Collider | |title=The TOTEM Experiment at the CERN Large Hadron Collider | ||
|journal= | |journal=Journal of Instrumentation | ||
|volume=3 |issue=8 |article-number=S08007 | |volume=3 |issue=8 |article-number=S08007 | ||
|bibcode = 2008JInst...3S8007T | |bibcode = 2008JInst...3S8007T | ||
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==External links== | ==External links== | ||
*[http://totem.web.cern.ch/Totem TOTEM Public Webpage] | *[http://totem.web.cern.ch/Totem TOTEM Public Webpage] | ||
*[ | *[https://web.archive.org/web/20091107174922/http://www.uslhc.us/What_is_the_LHC/Experiments/TOTEM] | ||
*[https://inspirehep.net/experiments/1110567 TOTEM experiment] record on | *[https://inspirehep.net/experiments/1110567 TOTEM experiment] record on INSPIRE-HEP | ||
[[Category:LHC experiments]] | |||
[[Category:Pages linking to Wikipedia]] | |||
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Revision as of 21:38, 31 March 2026
The TOTEM experiment (TOTal Elastic and diffractive cross section Measurement) is one of the nine detector experiments at CERN's Large Hadron Collider. The other eight are: ATLAS, ALICE, CMS, LHCb, LHCf, MoEDAL, FASER and SND@LHC. It shares an interaction point with CMS. The detector aims at measurement of total cross section, elastic scattering, and diffraction processes. The primary instrument of the detector is referred to as a Roman pot. In December 2020, the D0 and TOTEM Collaborations made public the odderon discovery based on a purely data driven approach in a CERN and Fermilab approved preprint that was later published in Physical Review Letters.[1] In this experimental observation, the TOTEM proton-proton data in the region of the diffractive minimum and maximum was extrapolated from 13, 8, 7 and 2.76 TeV to 1.96 TeV and compared this to D0 data at 1.96 TeV in the same t-range giving an odderon significance of 3.4 σ. When combined with TOTEM experimental data at 13 TeV at small scattering angles providing an odderon significance of 3.4–4.6 σ, the combination resulted in an odderon significance of at least 5.2 σ.[2]
For more information, see Wikipedia.
References
- ↑ "Odderon Exchange from Elastic Scattering Differences between pp and ppbar Data at 1.96 TeV and from pp Forward Scattering Measurements" (4 August 2021). Physical Review Letters 127 (6). doi:. Template:PMID. w:Bibcode: 2021PhRvL.127f2003A.
- ↑ "Odderon discovered". CERN Courier. 2021-03-09. Retrieved 2022-02-11.
Further reading
- G. Anelli et al. (TOTEM Collaboration) (2008). "The TOTEM Experiment at the CERN Large Hadron Collider". Journal of Instrumentation 3 (8). doi:. w:Bibcode: 2008JInst...3S8007T. (Full design documentation)
External links
- TOTEM Public Webpage
- [1]
- TOTEM experiment record on INSPIRE-HEP