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CMS Physics Analysis Summaries

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2023-09-26
22:38
Combination of measurements of the top quark mass from data collected by the ATLAS and CMS experiments at $\sqrt{s}=7$ and $8~\mathrm{TeV}$ /CMS Collaboration
A combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The data sets used correspond to an integrated luminosity of up to 5 and $20~\mathrm{fb}^{-1}$ of proton-proton collisions at center-of-mass energies of 7 and $8~\mathrm{TeV}$, respectively. [...]
CMS-PAS-TOP-22-001.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_A001-b: PDF; Figure_A002: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-19
09:38
Measurement of the Higgs boson mass and width using the four leptons final state /CMS Collaboration
A measurement of the Higgs boson mass and width using the decays to two Z bosons is presented, using the proton-proton data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$ at a center-of-mass energy of $13~\mathrm{TeV}$. The on-shell production of the Higgs boson with the decay $\mathrm{H} \to \mathrm{Z} \mathrm{Z}^* \to 4\ell$ is used to constrain its mass and width, which yields to the most precise single measurement of the mass to date $\mathrm{m}_\mathrm{H} = 125.08 \pm 0.12~\mathrm{GeV}$ and an upper limit on the width $\Gamma_\mathrm{H} < 60~\mathrm{MeV}$ at $68\%$ confidence level. [...]
CMS-PAS-HIG-21-019.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_001-e: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_005-e: PDF; Figure_005-f: PDF; Figure_005-g: PDF; Figure_005-h: PDF; Figure_005-i: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010: PDF; Figure_011: PDF; Figure_012: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-18
23:49
Constraints on anomalous Higgs boson couplings from its production and decay in the WW channel /CMS Collaboration
A study of the Higgs boson anomalous couplings from its production and decay in the $\mathrm{WW}$ channel is presented. The proton-proton collision data set was collected with the CMS detector at the CERN LHC during 2016-2018, and corresponds to an integrated luminosity of $138~\mathrm{fb}^{-1}$ at a center-of-mass energy of $13~\mathrm{TeV}$. [...]
CMS-PAS-HIG-22-008.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_002-e: PDF; Figure_002-f: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_010-d: PDF; Figure_011: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-18
17:50
Pseudorapidity distributions of charged hadrons in PbPb collisions at $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = 5.36$ TeV /CMS Collaboration
The pseudorapidity ($\eta$) distributions of charged hadrons are measured using data collected at a record nucleon-nucleon center-of-mass energy of $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}=5.36~\mathrm{TeV}$ for collisions of lead-lead (PbPb) ions. The data were recorded by the CMS experiment at the LHC in 2022 and correspond to an integrated luminosity of $0.3\pm0.03~\mu\mathrm{b}^{-1}$. [...]
CMS-PAS-HIN-23-007.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-18
11:02
Constraining beauty quark energy loss and hadronization with $\text{B}^{+}$ and $\text{B}^{0}_{\text{s}}$ nuclear modification factors in PbPb collisions at $5.02\,\text{TeV}$ with CMS /CMS Collaboration
The CMS Collaboration reports on the production yields of $\text{B}^{0}_{\text{s}}$ and $\text{B}^{+}$ mesons in proton-proton (pp) collisions recorded in 2017 at the CERN LHC with a center-of-mass energy of $5.02\,\text{TeV}$. Utilizing an integrated luminosity of 302.3$\,\text{pb}^{-1}$, the analysis focuses on the exclusive decay channels $\text{B}^{0}_{\text{s}} \to \text{J/}\psi (\mu^{+}\mu^{-})\,\phi (\text{K}^{+} \text{K}^{-})$ and $\text{B}^{+} \to \text{J/}\psi (\mu^{+}\mu^{-})\, \text{K}^{+}$ in a transverse momentum $(p_{\mathrm{T}})$ range of 7-50 $\text{GeV/c}$ and a rapidity interval $|y| < 2.4$. [...]
CMS-PAS-HIN-21-014.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-12
23:54
Measurement of the $\mathrm{B}^+$ differential cross section as a function of transverse momentum and multiplicity in pPb collisions at $\sqrt{s_\mathrm{NN}}=$ 8.16 TeV /CMS Collaboration
We present the measurement of the $\mathrm{B}^+$ meson production cross section with respect to the transverse momentum inclusively and, for the first time, in different charged particle multiplicities, in proton-lead collisions at a per nucleon center-of-mass energy of $8.16~\mathrm{TeV}$. The data were collected by the CMS detector during 2016 and correspond to an integrated luminosity of 175 nb$^{-1}$. [...]
CMS-PAS-HIN-22-001.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-12
16:56
Extracting the speed of sound in the strongly interacting matter created in relativistic nuclear collisions /CMS Collaboration
Ultrarelativistic nuclear collisions yield 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, we extracted the speed of sound in this medium utilizing data from $0.607~\mathrm{nb}^{-1}$ of lead-lead collisions at $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}=5.02~\mathrm{TeV}$, recorded by the CMS experiment in 2018 at the CERN-LHC. [...]
CMS-PAS-HIN-23-003.- Geneva : CERN, 2023 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-09-01
14:36
Elliptic anisotropy measurement of the $\rm{f}_0(980)$ hadron in proton-lead collisions and evidence of its quark-antiquark composition by CMS /CMS Collaboration
Despite its discovery half a century ago, the question about the quark content of the $\rm{f}_0(980)$ hadron has not been settled, whether its being an ordinary quark-antiquark meson, a tetraquark exotic state, a kaon-antikaon molecule, or a quark-antiquark-gluon hybrid. In this note, evidence that the $\rm{f}_0(980)$ hadron is an ordinary quark-antiquark meson is reported, by employing the number-of-constituent-quark (NCQ) scaling of elliptic flow anisotropies ($v_2$), empirically established by conventional hadrons up to transverse momentum ($p_{\rm {T}}$) of about 10~GeV/$c$ in relativistic heavy ion collisions. [...]
CMS-PAS-HIN-20-002.- Geneva : CERN, 2023 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Figure_009: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-08-31
23:25
Search for production of single vector-like quarks decaying to tH or tZ in the all-hadronic final state in pp collisions at sqrt(s) = 13 TeV /CMS Collaboration
A search for electroweak production of a single vector-like quark $\mathrm{T}$ in association with a bottom quark ($\mathrm{b}$) and decaying fully hadronically is presented. This search uses proton-proton collision data at $\sqrt{s} = 13~\mathrm{TeV}$ collected by the CMS experiment at the CERN LHC during 2016--2018, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-B2G-19-001.- Geneva : CERN, 2023 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_005-e: PDF; Figure_005-f: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_010-d: PDF; Figure_010-e: PDF; Figure_010-f: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_011-c: PDF; Figure_011-d: PDF; Figure_011-e: PDF; Figure_011-f: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Figure_012-d: PDF; Figure_012-e: PDF; Figure_012-f: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_013-c: PDF; Figure_013-d: PDF; Figure_013-e: PDF; Figure_013-f: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_014-d: PDF; Figure_014-e: PDF; Figure_014-f: PDF; Figure_015-a: PDF; Figure_015-b: PDF; Figure_015-c: PDF; Figure_015-d: PDF; Figure_015-e: PDF; Figure_015-f: PDF; Figure_016-a: PDF; Figure_016-b: PDF; Figure_016-c: PDF; Figure_016-d: PDF; Figure_016-e: PDF; Figure_016-f: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_017-c: PDF; Figure_017-d: PDF; Figure_017-e: PDF; Figure_017-f: PDF; Figure_018-a: PDF; Figure_018-b: PDF; Figure_018-c: PDF; Figure_018-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2023-08-31
07:53
Test of lepton flavor universality violation in semileptonic $B_c^+$ meson decays at CMS /CMS Collaboration
A measurement of the ratio of branching fractions $\mathrm{R}(\mathrm{J}/\psi) = \mathcal{B}(\mathrm{B}_{\mathrm{c}}^+\rightarrow\mathrm{J}/\psi\tau^+\nu_{\tau}) /$ $ \mathcal{B}(\mathrm{B}_{\mathrm{c}}^+\rightarrow\mathrm{J}/\psi\mu^+\nu_{\mu})$ in the $\mathrm{J}/\psi\rightarrow\mu^+\mu^-$, $\tau^+\rightarrow\mu^+\nu_{\mu}\nu_{\bar{\tau}}$ decay channel is presented. This measurement uses a sample of proton-proton collision data at a center of mass energy of 13 TeV collected by the CMS experiment in 2018 and corresponding to $59.7~\mathrm{fb}^{-1}$ of integrated luminosity. [...]
CMS-PAS-BPH-22-012.- Geneva : CERN, 2023 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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