BibTex format
@article{Hayrapetyan:2026:10.1103/89sf-9t1x,
author = {Hayrapetyan, A and Makarenko, V and Tumasyan, A and Adam, W and Benato, L and Bergauer, T and Dragicevic, M and Giordano, C and Hussain, PS and Jeitler, M and Krammer, N and Li, A and Liko, D and Matthewman, M and Schieck, J and Sch枚fbeck, R and Shooshtari, M and Sonawane, M and Waltenberger, W and Wulz, C-E and Janssen, T and Kwon, H and Ocampo, Henao D and Van, Laer T and Van, Mechelen P and Bierkens, J and Breugelmans, N and D'Hondt, J and Dansana, S and De, Moor A and Delcourt, M and Heyen, F and Hong, Y and Kashko, P and Lowette, S and Makarenko, I and M眉ller, D and Song, J and Tavernier, S and Tytgat, M and Van, Onsem GP and Van, Putte S and Vannerom, D and Bilin, B and Clerbaux, B and Das, AK and De, Bruyn I and De, Lentdecker G and Evard, H and Favart, L and Gianneios, P and Khalilzadeh, A and Khan, FA and Malara, A and Shahzad, MA and Sharma, A and Thomas, L and Vanden, Bemden M and Vander, Velde C and Vanlaer, P and Zhang, F and De, Coen M and Dobur, D and Gokbulut, G and Mar},
doi = {10.1103/89sf-9t1x},
journal = {Phys Rev Lett},
title = {Observation of Suppressed Charged-Particle Production in Ultrarelativistic Oxygen-Oxygen Collisions.},
url = {http://dx.doi.org/10.1103/89sf-9t1x},
volume = {136},
year = {2026}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - A hot and dense state of nuclear matter, known as the quark-gluon plasma, is created in collisions of ultrarelativistic heavy nuclei. Highly energetic quarks and gluons, collectively referred to as partons, lose energy as they travel through this matter, leading to suppressed production of particles with large transverse momenta (p_{T}). Conversely, high-p_{T} particle suppression has not been seen in proton-lead collisions, raising questions regarding the minimum system size required to observe parton energy loss. Oxygen-oxygen (OO) collisions examine a region of effective system size that lies between these two extreme cases. The CMS detector at the CERN LHC has been used to quantify charged-particle production in inclusive OO collisions for the first time via measurements of the nuclear modification factor (R_{AA}). The R_{AA} is derived by comparing particle production to expectations based on proton-proton (pp) data and has a value of unity in the absence of nuclear effects. The data for OO and pp collisions at a nucleon-nucleon center-of-mass energy sqrt[s_{NN}]=5.36 TeV correspond to integrated luminosities of 6.1 nb^{-1} and 1.02 pb^{-1}, respectively. The R_{AA} is below unity with a minimum of 0.69±0.04 around p_{T}=6 GeV. The data exhibit better agreement with theoretical models incorporating parton energy loss as compared to baseline models without energy loss.
AU - Hayrapetyan,A
AU - Makarenko,V
AU - Tumasyan,A
AU - Adam,W
AU - Benato,L
AU - Bergauer,T
AU - Dragicevic,M
AU - Giordano,C
AU - Hussain,PS
AU - Jeitler,M
AU - Krammer,N
AU - Li,A
AU - Liko,D
AU - Matthewman,M
AU - Schieck,J
AU - Sch枚fbeck,R
AU - Shooshtari,M
AU - Sonawane,M
AU - Waltenberger,W
AU - Wulz,C-E
AU - Janssen,T
AU - Kwon,H
AU - Ocampo,Henao D
AU - Van,Laer T
AU - Van,Mechelen P
AU - Bierkens,J
AU - Breugelmans,N
AU - D'Hondt,J
AU - Dansana,S
AU - De,Moor A
AU - Delcourt,M
AU - Heyen,F
AU - Hong,Y
AU - Kashko,P
AU - Lowette,S
AU - Makarenko,I
AU - M眉ller,D
AU - Song,J
AU - Tavernier,S
AU - Tytgat,M
AU - Van,Onsem GP
AU - Van,Putte S
AU - Vannerom,D
AU - Bilin,B
AU - Clerbaux,B
AU - Das,AK
AU - De,Bruyn I
AU - De,Lentdecker G
AU - Evard,H
AU - Favart,L
AU - Gianneios,P
AU - Khalilzadeh,A
AU - Khan,FA
AU - Malara,A
AU - Shahzad,MA
AU - Sharma,A
AU - Thomas,L
AU - Vanden,Bemden M
AU - Vander,Velde C
AU - Vanlaer,P
AU - Zhang,F
AU - De,Coen M
AU - Dobur,D
AU - Gokbulut,G
AU - Marckx,D
AU - Skovpen,K
AU - Tomaru,AM
AU - Van,Den Bossche N
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AU - Vandenbroeck,J
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AU - Alves,GA
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AU - Menezes,De Oliveira T
AU - Mora,Herrera C
AU - Rebello,Teles P
AU - Soeiro,M
AU - Tonelli,Manganote EJ
AU - Vilela,Pereira A
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AU - Carvalho,W
AU - Chinellato,J
AU - Costa,Reis M
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AU - Fonseca,De Souza S
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AU - Mundim,L
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AU - Pinheiro,JP
AU - Santoro,A
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AU - Thiel,M
AU - Torres,Da Silva De Araujo F
AU - Bernardes,CA
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AU - Damas,F
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AU - Maietto,Silverio I
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AU - Novaes,SF
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AU - Dimitrov,A
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AU - Laroze,D
AU - Thakur,S
AU - Brooks,W
AU - Cheng,T
AU - Javaid,T
AU - Wang,L
AU - Yuan,L
AU - Hu,Z
AU - Liang,Z
AU - Liu,J
AU - Wang,X
AU - Yang,H
AU - Chen,GM
AU - Chen,HS
AU - Chen,M
AU - Chen,Y
AU - Hou,Q
AU - Hou,X
AU - Iemmi,F
AU - Jiang,CH
DO - 10.1103/89sf-9t1x
PY - 2026///
TI - Observation of Suppressed Charged-Particle Production in Ultrarelativistic Oxygen-Oxygen Collisions.
T2 - Phys Rev Lett
UR - http://dx.doi.org/10.1103/89sf-9t1x
UR - https://www.ncbi.nlm.nih.gov/pubmed/42113161
VL - 136
ER -