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Search for the rare decay of the W boson into a pion and a photon in proton-proton collisions at √s = 13 TeV

Tumasyan, Armen Giljanović, Duje Godinović, Nikola Lelas, Damir Puljak, Ivica Antunović, Željko Kovač, Marko Šćulac, Toni Brigljević, Vuko Ferenček, Dinko Majumder, Devdatta Roguljić, Matej Starodumov, Andrey Šuša, Tatjana Bargassa, Pedrame Đurić, Senka Makarenko, Vladimir

2021-06-10

A search is performed for the rare decay W-+/--> pi(+/-)gamma in proton-proton collisions at root s = 13 TeV. Data corresponding to an integrated luminosity of 137 fb(-1) were collected during 2016 to 2018 with the CMS detector. This analysis exploit…

INSTITUT RUĐER BOŠKOVIĆ

Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Physics letters. B Vol. 819, str. 1–24

DOI10.1016/j.physletb.2021.136409 eISSN1873-2445 pISSN0370-2693

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

CMS Standard model EWK

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Observation of a pseudoscalar excess at the top quark pair production threshold

Hayrapetyan, Aram Godinović, Nikola Lelas, Damir Šćulac, Ana Kovač, Marko Petković, Andro Šćulac, Toni Bargassa, Pedrame Brigljević, Vuko Chitroda, Bhakti Kanulal Ferenček, Dinko Jakovčić, Krešimir Starodumov, Andrey Šuša, Tatjana Mishra, Saswat Roguljić, Matej Sosnov, Dmitry

2025-08-22

A search for resonances in top quark pair ($\text{t}\bar{\text{t}}$) production in final states with two charged leptons and multiple jets is presented, based on proton-proton collision data collected by the CMS experiment at the CERN LHC at $\sqrt{s…

INSTITUT RUĐER BOŠKOVIĆ

Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Reports on progress in physics Vol. 88, Br. 8, str. 1–25

DOI10.1088/1361-6633/adf7d3 eISSN1361-6633 pISSN0034-4885

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS top pseudoscalar scalar toponium

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Observation of quantum entanglement in top quark pair production in proton-proton collisions at √s = 13 TeV

Hayrapetyan, Aram Giljanović, Duje Godinović, Nikola Lelas, Damir Šćulac, Ana Kovač, Marko Petković, Andro Šćulac, Toni Bargassa, Pedrame Brigljević, Vuko Chitroda, Bhakti Kanulal Ferenček, Dinko Jakovčić, Krešimir Mishra, Saswat Starodumov, Andrey Šuša, Tatjana Roguljić, Matej Zhokin, Alexander

2024-10-23

Entanglement is an intrinsic property of quantum mechanics and is predicted to be exhibited in the particles produced at the Large Hadron Collider. A measurement of the extent of entanglement in top quark-antiquark ($\mathrm{t\bar{t}}$) events produc…

INSTITUT RUĐER BOŠKOVIĆ

Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

Sveučilište u Splitu Sveučilište u Splitu, Prirodoslovno-matematički fakultet Odjel za fiziku

Reports on progress in physics Vol. 87, Br. 11, str. 1–33

DOI10.1088/1361-6633/ad7e4d eISSN1361-6633 pISSN0034-4885

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS top quark entanglement p p: colliding beams top: pair production p p: scattering spin: dependence quantum mechanics: entanglement threshold: production entanglement: quantum Bell inequality lepton: transverse momentum transverse momentum: high CERN LHC Coll CERN Lab density matrix lepton: pair production final state: ((n)jet dilepton) parton quark antiquark phase space experimental results

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Observation of γγ → ττ in proton-proton collisions and limits on the anomalous electromagnetic moments of the τ lepton

2024-09-02

The production of a pair of $\tau$ leptons via photon-photon fusion, $\gamma\gamma$$\to$$\tau\tau$, is observed for the first time in proton-proton collisions, with a significance of 5.3 standard deviations. This observation is based on a data set re…

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Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Reports on progress in physics Vol. 87, Br. 10, str. 1–33

DOI10.1088/1361-6633/ad6fcb eISSN1361-6633 pISSN0034-4885

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS exclusive production taus p p: colliding beams photon photon: fusion p p: scattering tau: pair production dipole: electric tau: decay modes new physics: search for tau: hadronic decay tau: leptonic decay tau: magnetic moment magnetic moment: anomaly channel cross section: measured experimental results 13000 GeV-cms

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Test of lepton flavor universality in B± → K±μ⁺μ⁻ and B± → K±e⁺e⁻ decays in proton-proton collisions at √s = 13 TeV

Hayrapetyan, Aram Giljanović, Duje Godinović, Nikola Lelas, Damir Šćulac, Ana Kovač, Marko Šćulac, Toni Bargassa, Pedrame Brigljević, Vuko Chitroda, Bhakti Kanulal Ferenček, Dinko Mishra, Saswat Starodumov, Andrey Šuša, Tatjana Roguljić, Matej Zhokin, Alexander

2024-07-03

A test of lepton flavor universality in B$^{\pm}$$\to$ K$^{\pm}\mu^+\mu^-$ and B$^{\pm}$$\to$ K$^{\pm}$e$^+$e$^-$ decays, as well as a measurement of differential and integrated branching fractions of a nonresonant B$^{\pm}$$\to$ K$^{\pm}\mu^+\mu^-$ …

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Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Reports on progress in physics Vol. 87, Br. 7, str. 1–36

DOI10.1088/1361-6633/ad4e65 eISSN1361-6633 pISSN0034-4885

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS B physics lepton flavor universality B meson b to sll transitions p p: colliding beams lepton: flavor: universality p p: scattering B: semileptonic decay muon: pair production K B: branching ratio flavor: universality lepton: mass lepton: flavor branching ratio: ratio branching ratio: ratio: measured hadron: decay electron: pair production mass spectrum: (muon+ muon-)

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Extracting the speed of sound in quark-gluon plasma with ultrarelativistic lead-lead collisions at the LHC

2024-06-20

Ultrarelativistic nuclear collisions create a strongly interacting state of hot and dense quark-gluon matter that exhibits a remarkable collective flow behavior with minimal viscous dissipation. To gain deeper insights into its intrinsic nature and f…

INSTITUT RUĐER BOŠKOVIĆ

Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

Sveučilište u Splitu Sveučilište u Splitu, Prirodoslovno-matematički fakultet Odjel za fiziku

Reports on progress in physics Vol. 87, Br. 7, str. 1–20

DOI10.1088/1361-6633/ad4b9b eISSN1361-6633 pISSN0034-4885

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS quark-gluon plasma speed of sound ultra-central QCD equation of state velocity: acoustic matter: interaction particle flow: collective phenomena photon: velocity multiplicity: dependence charged particle: transverse momentum nucleon: pair quark gluon: matter quantum chromodynamics CERN LHC Coll nucleus temperature flow collective viscosity deconfinement equation of state lattice CERN Lab

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Probing small Bjorken-x nuclear gluonic structure via coherent J/ψ photoproduction in ultraperipheral PbPb collisions at √sNN = 5.02 TeV

Tumasyan, Armen Antunović, Željko Bargassa, Pedrame Brigljević, Vuko Chitroda, Bhakti Kanulal Đurić, Senka Ferenček, Dinko Giljanović, Duje Godinović, Nikola Kovač, Marko Lelas, Damir Mishra, Saswat Puljak, Ivica Roguljić, Matej Starodumov, Andrey Šćulac, Toni Šuša, Tatjana Zhokin, Alexander

2023-12-28

Quasireal photons exchanged in relativistic heavy ion interactions are powerful probes of the gluonic structure of nuclei. The coherent J/$\psi$ photoproduction cross section in ultraperipheral lead-lead collisions is measured as a function of photon…

INSTITUT RUĐER BOŠKOVIĆ

Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Physical review letters Vol. 131, Br. 26, str. 1–22

DOI10.1103/physrevlett.131.262301 eISSN1079-7114 pISSN0031-9007

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS nucleus: heavy GeV peripheral coherence TeV photoproduction structure nucleon CERN Lab photon heavy ion nucleon nucleon interpretation of experiments: CERN LHC Coll gluon photon nucleus energy dependence interpretation of experiments: CMS

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Observation of τ lepton pair production in ultraperipheral lead-lead collisions at √sNN = 5.02 TeV

Tumasyan, Armen Antunović, Željko Bargassa, Pedrame Brigljević, Vuko Chitroda, Bhakti Kanulal Đurić, Senka Ferenček, Dinko Giljanović, Duje Godinović, Nikola Kovač, Marko Lelas, Damir Majumder, Devdatta Puljak, Ivica Roguljić, Matej Starodumov, Andrey Šćulac, Toni Šuša, Tatjana Zhokin, Alexander

2023-10-12

We present an observation of photon-photon production of $\tau$ lepton pairs in ultraperipheral lead-lead collisions. The measurement is based on a data sample with an integrated luminosity of 404 $\mu$b$^{-1}$ collected by the CMS experiment at a nu…

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Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Physical review letters Vol. 131, Br. 15, str. 1–18

DOI10.1103/physrevlett.131.151803 eISSN1079-7114 pISSN0031-9007

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

high energy physics experimental particle physics LHC CMS higher-order: 0 lepton: pair production peripheral muon quantum electrodynamics magnetic moment experimental results photon photon --> tau+ tau- 5020 GeV-cms/nucleon

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Azimuthal correlations within exclusive dijets with large momentum transfer in photon-lead collisions

Tumasyan, Armen Antunović, Željko Bargassa, Pedrame Brigljević, Vuko Đurić, Senka Ferenček, Dinko Giljanović, Duje Godinović, Nikola Kovač, Marko Lelas, Damir Majumder, Devdatta Puljak, Ivica Roguljić, Matej Starodumov, Andrey Šćulac, Toni Šuša, Tatjana Zhokin, Alexander

2023-08-01

The structure of nucleons is multidimensional and depends on the transverse momenta, spatial geometry, and polarization of the constituent partons. Such a structure can be studied using high-energy photons produced in ultraperipheral heavy-ion collis…

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Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Physical review letters Vol. 131, Br. 5, str. 1–18

DOI10.1103/physrevlett.131.051901 eISSN1079-7114 pISSN0031-9007

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS gluon: polarization dijet: momentum jet: momentum p nucleus: scattering angular correlation correlation momentum transfer electromagnetic interaction transverse momentum final-state interaction experimental results 5020 GeV-cms/nucleon

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Observation of double J/ψ meson production in pPb collisions at √sNN = 8.16 TeV

2024-11-05

The first observation of the concurrent production of two J/$\psi$ mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (pPb) data sample recorded at a nucleon-nucleon center-of-mass energy of 8.16 TeV by the CMS e…

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Sveučilište u Splitu Sveučilište u Splitu, Fakultet elektrotehnike, strojarstva i brodogradnje Zavod za matematiku i fiziku

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Physical review. D Vol. 110, Br. 9, str. 1–25

DOI10.1103/physrevd.110.092002 eISSN2470-0029 pISSN2470-0010

Digitalni repozitorij Prirodoslovno-matematičkog fakulteta u Splitu

High energy physics Experimental particle physics LHC CMS

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