CERN Accelerating science

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新增:
2022-12-05
17:06
Measurement of the dependence of the hadron production fraction ratio $ f_\mathrm{s}/f_\mathrm{u} $ on B meson kinematic variables in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
The dependence of the ratio between the $ \mathrm{B}_{\mathrm{s}}^{0} $ and $ {\mathrm{B}^{+}} $ hadron production fractions, $ f_\mathrm{s}/f_\mathrm{u} $, on the transverse momentum ($ p_{\mathrm{T}} $) and rapidity of the B mesons is studied using the decay channels $ \mathrm{B}_{\mathrm{s}}^{0} \! \to \! \mathrm{J}/\psi \, \phi $ and $ {\mathrm{B}^{+}} \! \to \! \mathrm{J}/\psi \, \mathrm{K}^{+} $. [...]
CERN-EP-2022-248 ; CMS-BPH-21-001-003.
- 2022.
Additional information for the analysis - CMS AuthorList - Fulltext

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2022-12-03
20:51
Measurements of azimuthal anisotropy of nonprompt D$^{0} $ mesons in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV
Measurements of the elliptic ($ v_{2} $) and triangular ($ v_{3} $) azimuthal anisotropy coefficients are presented for D$^{0} $ mesons produced in b hadron decays (nonprompt D$^{0} $ mesons) in lead-lead collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV. [...]
CERN-EP-2022-219 ; CMS-HIN-21-003-003.
- 2022.
Additional information for the analysis - CMS AuthorList - Fulltext

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2022-12-02
12:39
Measurement of exclusive pion pair production in proton-proton collisions at $\sqrt{s}=$7 TeV with the ATLAS detector
The exclusive production of pion pairs in the process $pp\to pp\pi^+\pi^-$ has been measured at $\sqrt{s}$ = 7 TeV with the ATLAS detector at the LHC, using 80 $\mu$b$^{-1}$ of low-luminosity data. [...]
CERN-EP-2022-140.
- 2022.
Fulltext - Previous draft version

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2022-12-02
06:13
New results from the technological prototype of the CALICE highly-granular silicon tungsten electromagnetic calorimeter / Boudry, Vincent (LLR, Palaiseau)
An extended version of the CALICE silicon-tungsten ECAL was tested in November 2021 at the DESY beam test facility. [...]
arXiv:2211.05614.
- 2022. - 5 p.
Fulltext

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2022-12-02
04:19
Optimal transport for a global event description at high-intensity hadron colliders / Gouskos, Loukas (CERN) ; Iemmi, Fabio (Beijing, Inst. High Energy Phys.) ; Liechti, Sascha (Zurich U.) ; Maier, Benedikt (CERN) ; Mikuni, Vinicius (LBL, Berkeley) ; Qu, Huilin (CERN)
The CERN Large Hadron Collider was built to uncover fundamental particles and their interactions at the energy frontier. [...]
arXiv:2211.02029.
- 11 p.
Fulltext

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2022-12-02
04:19
Measurement of exclusive pion pair production in proton-proton collisions at $\sqrt{s}=$7 TeV with the ATLAS detector
The exclusive production of pion pairs in the process $pp\to pp\pi^+\pi^-$ has been measured at $\sqrt{s}$ = 7 TeV with the ATLAS detector at the LHC, using 80 $\mu$b$^{-1}$ of low-luminosity data. [...]
CERN-EP-2022-140 ; arXiv:2212.00664.
- 21 p.
Fulltext

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2022-12-02
04:18
Unveiling the effects of multiple soft partonic interactions in pp collisions at $\sqrt{{\textit s}}=13.6$ TeV using charged-particle flattenicity / Ortiz, Antonio (CERN ; Mexico U., ICN) ; Khuntia, Arvind (CTU, Prague) ; Vázquez-Rueda, Omar (Houston U.) ; Tripathy, Sushanta (INFN, Bologna) ; Bencedi, Gyula (Wigner RCP, Budapest) ; Prasad, Suraj (Indian Inst. Tech., Indore) ; Fan, Feng (Hua-Zhong Normal U.)
Event classifiers based either on the charged-particle multiplicity or the event shape have been extensively used in proton-proton (pp) collisions by the ALICE collaboration at the LHC. [...]
arXiv:2211.06093.
- 10 p.
Fulltext

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2022-12-02
04:18
HIKE, High Intensity Kaon Experiments at the CERN SPS / Cortina Gil, E. ; Jerhot, J. ; Lurkin, N. ; Numao, T. ; Velghe, B. ; Wong, V.W.S. ; Bryman, D. ; Bician, L. ; Hives, Z. ; Husek, T. et al.
A timely and long-term programme of kaon decay measurements at a new level of precision is presented, leveraging the capabilities of the CERN Super Proton Synchrotron (SPS). [...]
CERN-SPSC-2022-031/SPSC-I-257 ; arXiv:2211.16586.
-
Fulltext

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2022-12-02
04:18
Conditional Generative Modelling of Reconstructed Particles at Collider Experiments / Di Bello, Francesco Armando (Genoa U. ; INFN, Genoa) ; Dreyer, Etienne (Weizmann Inst.) ; Ganguly, Sanmay (Tokyo U., ICEPP) ; Gross, Eilam (Weizmann Inst.) ; Heinrich, Lukas (Munich, Tech. U.) ; Kado, Marumi (Munich, Tech. U. ; CERN ; U. Rome La Sapienza (main) ; INFN, Rome) ; Kakati, Nilotpal (Weizmann Inst.) ; Shlomi, Jonathan (Weizmann Inst.) ; Soybelman, Nathalie (Weizmann Inst.)
The simulation of particle physics data is a fundamental but computationally intensive ingredient for physics analysis at the Large Hadron Collider, where observational set-valued data is generated conditional on a set of incoming particles. [...]
arXiv:2211.06406.
- 10 p.
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2022-12-02
04:18
Prospects for Exotic $h\rightarrow 4 \tau$ Decays in Single and Di-Higgs Production at the LHC and Future Hadron Colliders / Adhikary, Amit (Warsaw U. ; Bangalore, Indian Inst. Sci.) ; Banerjee, Shankha (CERN) ; Barman, Rahool Kumar (Oklahoma State U.) ; Batell, Brian (Pittsburgh U.) ; Bhattacherjee, Biplob (Bangalore, Indian Inst. Sci.) ; Bose, Camellia (Bangalore, Indian Inst. Sci.) ; Qian, Zhuoni (Hangzhou Normal U.) ; Spannowsky, Michael (Durham U., IPPP)
We study the prospects for observing exotic decays of the Standard Model (SM) Higgs boson $h$ into light beyond the Standard Model (BSM) scalars $a$ with mass $m_{a} \lesssim m_{h}/2$ in the single Higgs and Higgs pair production channels at the High Luminosity run of the Large Hadron Collider (HL-LHC). [...]
arXiv:2211.07674.
- 56 p.
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