Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC
Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (ϕ). Short-range correlatio...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2012
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| Online Access: | http://hdl.handle.net/1721.1/75756 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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| author | Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Sung, Kevin Kai Hong Wenger, Edward Allen Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Gunther M Wyslouch, Boleslaw Yang, Mingming Harris, Philip Coleman Luckey Jr, P David Roland, Christof E Rudolph, Matthew Scott Sumorok, Konstanty C Xie, Si |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Sung, Kevin Kai Hong Wenger, Edward Allen Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Gunther M Wyslouch, Boleslaw Yang, Mingming Harris, Philip Coleman Luckey Jr, P David Roland, Christof E Rudolph, Matthew Scott Sumorok, Konstanty C Xie, Si |
| author_sort | Alver, Burak Han |
| collection | MIT |
| description | Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (ϕ). Short-range correlations in Δη, which are studied in minimum bias events, are characterized using a simple “independent cluster” parametrization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 nb[superscript −1] data set at 7 TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particle pairs with intermediate p [subscript T] of 1–3 GeV/c, 2.0 < |Δη| < 4.8 and Δϕ ≈ 0. This is the first observation of such a long-range, near-side feature in two-particle correlation functions in pp or p[−over]p collisions. |
| first_indexed | 2024-09-23T17:02:22Z |
| format | Article |
| id | mit-1721.1/75756 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:02:22Z |
| publishDate | 2012 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/757562023-02-26T05:43:20Z Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Sung, Kevin Kai Hong Wenger, Edward Allen Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Gunther M Wyslouch, Boleslaw Yang, Mingming Harris, Philip Coleman Luckey Jr, P David Roland, Christof E Rudolph, Matthew Scott Sumorok, Konstanty C Xie, Si Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Alver, Burak Han Bauer, Gerry P. Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Harris, P. Kim, Y. Klute, Markus Lee, Y. J. Li, W. Loizides, Constantin Luckey, P. David, Jr. Ma, Teng Nahn, Steven Paus, Christoph M. E. Roland, Christof E. Roland, Gunther M. Rudolph, M. Stephans, George S. F. Sumorok, Konstanty C. Sung, Kevin Kai Hong Wenger, Edward Allen Wyslouch, B. Xie, S. Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (ϕ). Short-range correlations in Δη, which are studied in minimum bias events, are characterized using a simple “independent cluster” parametrization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 nb[superscript −1] data set at 7 TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particle pairs with intermediate p [subscript T] of 1–3 GeV/c, 2.0 < |Δη| < 4.8 and Δϕ ≈ 0. This is the first observation of such a long-range, near-side feature in two-particle correlation functions in pp or p[−over]p collisions. 2012-12-18T14:46:26Z 2012-12-18T14:46:26Z 2010-09 2010-09 Article http://purl.org/eprint/type/JournalArticle 1126-6708 1029-8479 http://hdl.handle.net/1721.1/75756 The CMS collaboration et al. “Observation of Long-range, Near-side Angular Correlations in Proton-proton Collisions at the LHC.” Journal of High Energy Physics 2010.9 (2010). https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 en_US http://dx.doi.org/10.1007/JHEP09(2010)091 Journal of High Energy Physics Creative Commons Attribution Non-Commercial http://creativecommons.org/licenses/by-nc/3.0/ application/pdf Springer-Verlag Springer |
| spellingShingle | Alver, Burak Han Bendavid, Joshua L. Busza, Wit Butz, Erik M. Cali, Ivan Amos Chan, M. Dutta, Valentina Everaerts, Pieter Bruno Bart Gomez-Ceballos, Guillelmo Goncharov, Maxim Hahn, Kristian Allan Kim, Y. Klute, Markus Li, W. Ma, Teng Nahn, Steven Paus, Christoph M. E. Stephans, George S. F. Sung, Kevin Kai Hong Wenger, Edward Allen Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Bauer, Gerry P Lee, Yen-Jie Loizides, Constantinos Roland, Gunther M Wyslouch, Boleslaw Yang, Mingming Harris, Philip Coleman Luckey Jr, P David Roland, Christof E Rudolph, Matthew Scott Sumorok, Konstanty C Xie, Si Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC |
| title | Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC |
| title_full | Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC |
| title_fullStr | Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC |
| title_full_unstemmed | Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC |
| title_short | Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC |
| title_sort | observation of long range near side angular correlations in proton proton collisions at the lhc |
| url | http://hdl.handle.net/1721.1/75756 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-6332-5839 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-0869-5631 |
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