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Evidence of medium response to hard probes using correlations of Z bosons with hadrons in heavy ion collisions / CMS Collaboration
The first measurement of pseudorapidity and azimuthal angle distributions relative to the momentum vector of a Z boson for low transverse momentum ($ p_{\mathrm{T}} $) charged hadrons in lead-lead (PbPb) collisions is presented. [...]
arXiv:2507.09307 ; CMS-HIN-23-006 ; CERN-EP-2025-046 ; CMS-HIN-23-006-004. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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Observation of coherent $\phi(1020)$ meson photoproduction in ultraperipheral PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.36 TeV / CMS Collaboration
The first observation of coherent $\phi(1020)$ meson photoproduction off heavy nuclei is presented using ultraperipheral lead-lead collisions at a center-of-mass energy per nucleon pair of 5.36 TeV. [...]
arXiv:2504.05193 ; CMS-HIN-24-009 ; CERN-EP-2025-051 ; CMS-HIN-24-009-003. - 2025 - 33.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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Observation of nuclear modification of energy-energy correlators inside jets in heavy ion collisions / CMS Collaboration
Energy-energy correlators are constructed by averaging the number of charged particle pairs within jets, weighted by the product of their transverse momenta, as a function of the angular separation of the particles within a pair. They are sensitive to a multitude of perturbative and nonperturbative quantum chromodynamics phenomena in high-energy particle collisions. [...]
arXiv:2503.19993; CMS-HIN-23-004; CERN-EP-2025-014; CMS-HIN-23-004-003.- Geneva : CERN, 2025-05-13 - 32 p. - Published in : Phys. Lett. B 866 (2025) 139556 Fulltext: CMS-HIN-23-004-arXiv - PDF; 2503.19993 - PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList

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Small-$ x $ evolution of gluon fields from incoherent $ \mathrm{J}/\psi $ photoproduction in ultraperipheral PbPb collisions / CMS Collaboration
Incoherent $ \mathrm{J}/\psi $ photoproduction in heavy ion ultraperipheral collisions (UPCs), in which the photon interacts with localized, fluctuating gluonic hotspots rather than the entire nucleus, provides a unique probe of those fluctuations. This study presents the first measurement of the dependence of this photoproduction yield on the photon-nucleon center-of-mass energy ($ W_{\gamma\mathrm{N}} $), using PbPb UPCs at a nucleon-nucleon center-of-mass energy of 5.02 TeV. [...]
arXiv:2503.08903; CMS-HIN-23-009; CERN-EP-2025-030; CMS-HIN-23-009-003.- Geneva : CERN, 2025-09-09 - 22 p. - Published in : Phys. Rev. Lett. 135 (2025) 112301 Fulltext: CMS-HIN-23-009-arXiv - PDF; 2503.08903 - PDF; External links: Additional information for the analysis; CMS AuthorList

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Luminosity measurement for lead-lead collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV in 2015 and 2018 at CMS / CMS Collaboration
Measurements of the luminosity delivered to the CMS experiment during the lead-lead data-taking periods in 2015 and 2018 are presented for the first time. [...]
arXiv:2503.03946 ; CMS-LUM-20-002 ; CERN-EP-2025-018 ; CMS-LUM-20-002-003. - 2025 - 47.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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Observation of the charged-particle multiplicity dependence of $ \sigma_{\psi(2\text{S})} /\sigma_{\mathrm{J}/\psi} $ in $p$-Pb collisions at 8.16 TeV / CMS Collaboration
Bound states of charm and anticharm quarks, known as charmonia, have a rich spectroscopic structure that can be used to probe the dynamics of hadron production in high-energy hadron collisions. Here, the cross section ratio of excited $ (\psi(2\text{S})) $ and ground state $ (\mathrm{J}/\psi ) $ vector mesons is measured as a function of the charged-particle multiplicity in proton-lead (pPb ) collisions at a center-of-mass (CM) energy per nucleon pair of 8.16 TeV. [...]
arXiv:2503.02139; CMS-HIN-24-001; CERN-EP-2025-006; CMS-HIN-24-001-003.- Geneva : CERN, 2025-08-25 - 37 p. - Published in : Phys. Rev. Lett. 135 (2025) 092301 Fulltext: CMS-HIN-24-001-arXiv - PDF; 2503.02139 - PDF; document - PDF; External links: Additional information for the analysis; CMS AuthorList

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Search for medium effects using jet axis decorrelation in inclusive jets from PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV / CMS Collaboration
The jet axis decorrelation in inclusive jets is studied using lead-lead (PbPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The jet axis decorrelation is defined as the angular difference between two definitions of the jet axis. [...]
arXiv:2502.13020; CMS-HIN-24-010; CERN-EP-2024-345; CMS-HIN-24-010-003.- Geneva : CERN, 2025-06-12 - 39 p. - Published in : JHEP 2506 (2025) 120 Fulltext: CMS-HIN-24-010-arXiv - PDF; 2502.13020 - PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList

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Observation of $ \Lambda $ hyperon local polarization in pPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 8.16 TeV / CMS Collaboration
The polarization of the $ \Lambda $ and $ \overline{\Lambda} $ hyperons along the beam direction has been measured in proton-lead (pPb) collisions at a center-of-mass energy per nucleon pair of 8.16 TeV. [...]
arXiv:2502.07898 ; CMS-HIN-24-002 ; CERN-EP-2024-328 ; CMS-HIN-24-002-003. - 2025 - 37.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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Evidence for similar collectivity of high transverse momentum particles in pPb and PbPb collisions / CMS Collaboration
Charged hadron elliptic anisotropies ($ v_2 $) are presented over a wide transverse momentum ($ p_{\mathrm{T}} $) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The data were recorded by the CMS experiment and correspond to integrated luminosities of 186 nb$^{-1}$ and 0.607 nb$^{-1}$ for the pPb and PbPb systems, respectively. [...]
arXiv:2502.07525; CMS-HIN-23-002; CERN-EP-2024-332; CMS-HIN-23-002-003.- Geneva : CERN, 2025-08-13 - 35 p. - Published in : Phys. Rev. Lett. 135 (2025) 071903 Fulltext: CMS-HIN-23-002-arXiv - PDF; 2502.07525 - PDF; document - PDF; External links: Additional information for the analysis; CMS AuthorList

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Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV / CMS Collaboration
Measurements of light-by-light scattering (LbL, $ \gamma\gamma\to\gamma\gamma $) and the Breit-Wheeler process (BW, $ \gamma\gamma\to\mathrm{e}^+\mathrm{e}^- $) are reported in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV. The data sample, corresponding to an integrated luminosity of 1.7 nb$^{-1}$, was collected by the CMS experiment at the CERN LHC in 2018. [...]
arXiv:2412.15413; CMS-HIN-21-015; CERN-EP-2024-284; CMS-HIN-21-015-003.- Geneva : CERN, 2025-08-01 - 56 p. - Published in : JHEP 2508 (2025) 006 Fulltext: CMS-HIN-21-015-arXiv - PDF; 2412.15413 - PDF; document - PDF; External links: Additional information for the analysis; CMS AuthorList

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See also: similar author names
28	Vardanyan, I
1	Vardanyan, I.N.
176	Vardanyan, Irina

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