CERN Accelerating science

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1.
Muon Collider Physics Summary / Aime, Chiara (Pavia U. ; INFN, Pavia) ; Apyan, Aram (Brandeis U.) ; Mahmoud Mohammed, Mohammed Attia (Fayoum U.) ; Bartosik, Nazar (INFN, Turin) ; Batsch, Fabian (CERN) ; Bertolin, Alessandro (INFN, Padua) ; Bonesini, Maurizio (INFN, Italy ; Milan Bicocca U.) ; Bottaro, Salvatore (Pisa, Scuola Normale Superiore) ; Buttazzo, Dario (INFN, Pisa) ; Capdevilla Roldan, Rodolfo Mario (Toronto U.) et al.
The perspective of designing muon colliders with high energy and luminosity, which is being investigated by the International Muon Collider Collaboration, has triggered a growing interest in their physics reach. [...]
arXiv:2203.07256 ; FERMILAB-PUB-22-377-PPD.
- 21.
Fermilab Library Server - eConf - Fulltext - Fulltext
2.
The physics case of a 3 TeV muon collider stage / Muon Collider Collaboration
In the path towards a muon collider with center of mass energy of 10 TeV or more, a stage at 3 TeV emerges as an appealing option. [...]
arXiv:2203.07261 ; FERMILAB-CONF-22-317-AD-ND-PPD-SCD-TD.
- 73.
Fermilab Library Server - eConf - Fulltext - Fulltext
3.
Report from Working Group 2 : Higgs Physics at the HL-LHC and HE-LHC / Cepeda, M. (CERN ; Madrid, CIEMAT) ; Gori, S. (UC, Santa Cruz, Inst. Part. Phys.) ; Ilten, P. (Birmingham U.) ; Kado, M. (Orsay, LAL ; INFN, Rome ; Rome U.) ; Riva, F. (Geneva U., Dept. Theor. Phys.) ; Abdul Khalek, R. (Vrije U., Amsterdam ; Nikhef, Amsterdam) ; Aboubrahim, A. (Northeastern U. (main)) ; Alimena, J. (Ohio State U., Columbus (main)) ; Alioli, S. (Milan Bicocca U.) ; Alves, A. (U. Sao Paulo (main)) et al.
The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a landscape of possibilities in the study of Higgs boson properties, Electroweak Symmetry breaking and the Standard Model in general, as well as new avenues in probing new physics beyond the Standard Model. [...]
arXiv:1902.00134; CERN-LPCC-2018-04.- Geneva : CERN, 2019-12-02 - 364 p. - Published in : CERN Yellow Rep. Monogr. 7 (2019) 221-584 Fulltext: PDF; Preprint: PDF; final document: PDF; External link: Published fulltext
In : HL/HE-LHC Workshop : Workshop on the Physics of HL-LHC, and Perspectives at HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018
Report on the Physics at the HL-LHC, and Perspectives for the HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018, pp.221-584
4.
Proton reconstruction with the CMS-TOTEM Precision Proton Spectrometer / CMS and TOTEM Collaboration
The Precision Proton Spectrometer (PPS) of the CMS and TOTEM experiments collected 107.7 fb$ ^{-1} $ in proton-proton (pp) collisions at the LHC at 13 TeV (Run 2). This paper describes the key features of the PPS alignment and optics calibrations, the proton reconstruction procedure, as well as the detector efficiency and the performance of the PPS simulation. [...]
arXiv:2210.05854; CMS-PRO-21-001; TOTEM-2022-001; CERN-EP-2022-139; CMS-PRO-21-001-003.- Geneva : CERN, 2023-09-06 - 60 p. - Published in : JINST 18 (2023) P09009 Fulltext: PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
5.
Probing the nature of the $\chi_{c1}(3872)$ state using radiative decays / LHCb Collaboration
The radiative decays $\chi_{c1}(3872)\rightarrow \psi(2S)\gamma$ and $\chi_{c1}(3872)\rightarrow J/\psi\gamma$ are used to probe the nature of the $\chi_{c1}(3872)$ state using proton-proton collision data collected with the LHCb detector, corresponding to an integrated luminosity of 9fb$^{-1}$. Using the $B^+ \rightarrow \chi_{c1}(3872)K^+$ decay, the $\chi_{c1}(3872)\rightarrow \psi(2S)\gamma$ process is observed for the~first time and the ratio of its partial width to that of the $\chi_{c1}(3872)\rightarrow J/\psi\gamma$ decay is measured to be $$ \frac{\Gamma_{\chi_{c1}(3872)\rightarrow \psi(2S)\gamma}} {\Gamma_{\chi_{c1}(3872)\rightarrow J\psi\gamma}} = 1.67 \pm 0.21 \pm 0.12 \pm0.04, $$ where the first uncertainty is statistical, the second systematic and the third is due to the uncertainties on the branching fractions of the $\psi(2S)$ and $J/\psi$ mesons. [...]
arXiv:2406.17006; LHCb-PAPER-2024-015; CERN-EP-2025-157; LHCB-PAPER-2024-015.- Geneva : CERN, 2024-11-21 - 33 p. - Published in : JHEP 2411 (2024) 121 Fulltext: 2406.17006 - PDF; document - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Amplitude analysis of $B^+\to \psi(2S) K^+ \pi^+\pi^-$ decays / Aaij, Roel (Nikhef, Amsterdam) ; Abdelmotteleb, Ahmed Sameh Wagih (Warwick U.) ; Abellan Beteta, Carlos (Zurich U.) ; Abudinén, Fernando Jesus (Warwick U.) ; Ackernley, Thomas (Liverpool U.) ; Adefisoye, Ayomide Matthew (Syracuse U.) ; Adeva, Bernardo (U. Santiago de Compostela (main)) ; Adinolfi, Marco (Bristol U.) ; Adlarson, Patrik Harri ; Agapopoulou, Christina (IJCLab, Orsay) et al.
The first full amplitude analysis of $B^+ \to \psi(2S) K^+ \pi^+ \pi^-$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$ recorded with the LHCb detector. [...]
arXiv:2407.12475 ; LHCb-PAPER-2024-014 ; CERN-EP-2024-177 ; LHCB-PAPER-2024-014.
- 2024 - 69.
Fulltext - Related data file(s) - Fulltext
7.
Observation of exotic ${J\mskip -3mu/\mskip -2mu\psi}\phi$ resonances in diffractive processes in proton-proton collisions / LHCb Collaboration
The first study of $J\mskip -3mu/\mskip -2mu\psi\phi$ production in diffractive processes in proton-proton collisions is presented. [...]
arXiv:2407.14301 ; LHCb-PAPER-2023-043 ; CERN-EP-2024-149 ; LHCB-PAPER-2023-043.
- 2024 - 21.
Fulltext - Related data file(s) - Fulltext
8.
Measurement of the branching fraction ratios $R(D^+)$ and $R(D^{*+})$ using muonic $\tau$ decays / LHCb Collaboration
The branching fraction ratios of $\kern 0.18em \overline{\kern -0.18em B}{}^0\to D^+\tau^-\overline{\nu}_{\tau}$ and $\kern 0.18em \overline{\kern -0.18em B}{}^0\to D^{*+}\tau^-\overline{\nu}_{\tau}$ decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of 2.0 fb$^{-1}$ collected by the LHCb experiment in proton-proton collisions at $\sqrt{s} = 13\,\text{TeV}$. [...]
arXiv:2406.03387 ; LHCb-PAPER-2024-007 ; CERN-EP-2024-125 ; LHCB-PAPER-2024-007.
- 2024 - 22.
Fulltext - Related data file(s) - Supplementary information - Fulltext
9.
Improved measurement of $CP$ violation parameters in $B_s^0\to J/\psi K^+K^-$ decays in the vicinity of the $\phi(1020)$ resonance / LHCb Collaboration
The decay-time-dependent $CP$ asymmetry in $B_s^0\to J/\psi(\to \mu^+\mu^-) K^+ K^-$ decays is measured using proton-proton collision data, corresponding to an integrated luminosity of $6 {\rm fb}^{-1}$, collected with the LHCb detector at a center-of-mass energy of 13 TeV. Using a sample of approximately 349 000 $B_s^0$ signal decays with an invariant $K^+ K^-$ mass in the vicinity of the $\phi(1020)$ resonance, the $CP$-violating phase $\phi_s$ is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the $B_s^0$-$\overline{B}_s^0$ system, $\Delta\Gamma_s$, and the difference of the average $B_s^0$ and $B^0$ meson decay widths, $\Gamma_s-\Gamma_d$. [...]
arXiv:2308.01468; LHCb-PAPER-2023-016; CERN-EP-2023-145; CERN-EP-2023-145 CERN-EP-2023-145; LHCb-PAPER-2023-016.- Geneva : CERN, 2024-02-02 - 12 p. - Published in : Phys. Rev. Lett. 132 (2024) 051802 Fulltext: 2308.01468 - PDF; LHCb-PAPER-2023-016 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
10.
Observation of enhanced double parton scattering in proton-lead collisions at $\sqrt{s_\mathrm{NN}}=8.16$ TeV / LHCb Collaboration
A study of prompt charm-hadron pair production in proton-lead collisions at $\sqrt{s_\mathrm{NN}}= 8.16$ TeV is performed using data corresponding to an integrated luminosity of about 30 nb${}^{-1}$, collected with the LHCb experiment. Production cross-sections for different pairs of charm hadrons are measured and kinematic correlations between the two charm hadrons are investigated. [...]
arXiv:2007.06945; LHCb-PAPER-2020-010; CERN-EP-2020-119; LHCB-PAPER-2020-010.- Geneva : CERN, 2020-11-20 - 13 p. - Published in : Phys. Rev. Lett. 125 (2020) 212001 Article from SCOAP3: PDF; Fulltext: 2007.06945 - PDF; Paper-2020-010 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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