CERN Accelerating science

Preprints

Ostatnio dodane:
2021-09-19
15:48
On the chiral anomaly and the Yang-Mills gradient flow / Lüscher, Martin (CERN ; Bern U. ; U. Bern, AEC)
There are currently two singularity-free universal expressions for the topological susceptibility in QCD, one based on the Yang-Mills gradient flow and the other on density-chain correlation functions. [...]
arXiv:2109.07965 ; CERN-TH-2021-132.
- 9 p.

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2021-09-19
15:48
Measurement of $\mathrm{D}$-meson production as a function of charged-particle multiplicity in proton--proton collisions at $\sqrt{s} = 13$ TeV with ALICE at the LHC / Bailung, Yoshini (Indian Inst. Tech., Indore)
Heavy quarks (charm and beauty) are produced in hard-scattering processes and the study of their production in proton--proton (pp) collisions is an important test for calculations based on perturbative Quantum Chromodynamics (pQCD). [...]
arXiv:2109.07992.
- 5 p.

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2021-09-19
15:38
Charmonium suppression in ultra-relativistic Proton-Proton collisions at LHC energies: A hint for QGP in small systems / Singh, Captain R. (Indian Inst. Tech., Indore) ; Deb, Suman (Indian Inst. Tech., Indore) ; Sahoo, Raghunath (Indian Inst. Tech., Indore ; CERN) ; Alam, Jan-e (Calcutta, VECC)
Proton-proton ($pp$) collision has been considered as a baseline to study the system produced in relativistic heavy-ion (AA) collisions with the basic assumption that no thermal medium is formed in $pp$ collisions. [...]
arXiv:2109.07967.
- 14 p.

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2021-09-17
13:44
Observation of the suppressed $\Lambda^0_b\to D p K^-$ decay with $D\to K^+ \pi^-$ and measurement of its CP asymmetry / LHCb Collaboration
A study of $\Lambda^0_b$ baryon decays to the $DpK^-$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9fb$^{-1}$ collected with the LHCb detector. [...]
arXiv:2109.02621 ; LHCb-PAPER-2021-027 ; CERN-EP-2021-179 ; LHCB-PAPER-2021-027.
- 2021.
Fulltext - Related data file(s)

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2021-09-17
09:37
Study of $Z$ bosons produced in association with charm in the forward region / LHCb Collaboration
The fraction of $Z+$jet events that contain a charm jet is measured for the first time in the forward region of proton-proton collisions. [...]
arXiv:2109.08084 ; LHCb-PAPER-2021-029 ; CERN-EP-2021-176 ; LHCB-PAPER-2021-029.
- 2021.
Fulltext - Related data file(s) - Supplementary information

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2021-09-17
08:16
Search for heavy resonances decaying to Z($ \nu\bar{\nu} $)V($ \mathrm{q}\mathrm{\bar{q}}' $) in proton-proton collisions at $\sqrt{s} = $ 13 TeV
A search is presented for heavy bosons decaying to Z($ \nu\bar{\nu} $)V($ \mathrm{q}\mathrm{\bar{q}}' $), where V can be a W or a Z boson. [...]
CERN-EP-2021-158 ; CMS-B2G-20-008-003.
- 2021.
Additional information for the analysis - CMS AuthorList - Fulltext

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2021-09-17
04:42
Theory Closing Talk / Giudice, Gian F.
In this talk I make some remarks about the search for the origin of the electroweak scale..
arXiv:2109.07176 ; CERN-TH-2021-134.
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2021-09-16
11:03
Search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ in the $\it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ final state / LHCb Collaboration
A search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ is performed in the $\it{\Xi}_{cc}^{+} \rightarrow \it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ decay mode, where the $\it{\Xi}_{c}^{+}$ baryon is reconstructed in the $p K^{-} \pi^{+}$ final state. [...]
arXiv:2109.07292 ; LHCb-PAPER-2021-019 ; CERN-EP-2021-155 ; LHCB-PAPER-2021-019.
- 2021.
Fulltext - Related data file(s) - Supplementary information

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2021-09-16
08:46
Measurement of $\chi_{c1}(3872)$ production in proton-proton collisions at $\sqrt{s}=8$ and 13 TeV / LHCb Collaboration
The production cross-section of the $\chi_{c1}(3872)$ state relative to the $\psi(2S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of $\sqrt{s}=8$ and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb$^{-1}$, respectively. [...]
arXiv:2109.07360 ; LHCb-PAPER-2021-026 ; CERN-EP-2021-182 ; LHCB-PAPER-2021-026.
- 2021.
Fulltext - Related data file(s)

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2021-09-16
04:32
Comparison of $pp$ and $p\bar{p}$ differential elastic cross sections and observation of colourless C-odd gluonic exchanges / Österberg, Kenneth
The TOTEM 2.76, 7, 8, and 13 TeV pp elastic differential cross sections are extrapolated using a data-driven approach to obtain the 1.96 TeV pp elastic cross section. [...]
arXiv:2109.06271.
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