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1.
Investigation of the Drell-Yan process and precise electroweak measurements in the CMS experiment / Mukherjee, Maitreyee (Panjab U.) /CMS Collaboration
Electroweak (EW) processes emerge with the interaction of EW bosons in the Standard model (SM) described by diagrams of production or exchange of EW gauge bosons. They are an important part of physics studied at the Large Hadron Collider (LHC) since EW processes can be well predicted in theory using NLO (next-toleading) order for electroweak processes and up to NNLO (next-to-next-to-leading) order for quantum chromodynamics (QCD), also constraining Parton distribution functions (PDF), which are important to make predictions for the higher energies. [...]
2024 - 2 p. - Published in : DAE Symp. Nucl. Phys.: 67 (2024) , pp. 2 Fulltext: PDF; External link: Fulltext
In : 67th DAE Symposium on Nuclear Physics (DAE NPSYMP 2023), Indore, Madhya Pradesh, India, 9 - 23 Dec 2023
2.
First measurement of the $C\!P$-violating phase in ${{B} ^0_{s}} \!\rightarrow {{J /\psi }} (\rightarrow e ^+e ^-$)$\phi $ decays / LHCb Collaboration
A flavour-tagged time-dependent angular analysis of $B^0_s\to J/\psi\phi$ decays is presented where the $J/\psi$ meson is reconstructed through its decay to an $e^+e^-$ pair. The analysis uses a sample of $pp$ collision data recorded with the LHCb experiment at centre-of-mass energies of $7$ and $8$ TeV, corresponding to an integrated luminosity of $3$ fb$^{-1}$. [...]
arXiv:2105.14738; LHCb-PAPER-2020-042; CERN-EP-2021-064; LHCB-PAPER-2020-042.- Geneva : CERN, 2021-11-24 - 28 p. - Published in : Eur. Phys. J. C 81 (2021) 1026 Fulltext: document - PDF; LHCb-PAPER-2020-042 - PDF; 2105.14738 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
3.
Search for time-dependent $CP$ violation in $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$ decays / LHCb Collaboration
A search for time-dependent violation of the charge-parity symmetry in $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$ decays is performed at the LHCb experiment using proton-proton collision data recorded from 2015 to 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. The $D^0$ meson is required to originate from a $D^*(2010)^+ \to D^0 \pi^+$ decay, such that its flavour at production is identified by the charge of the accompanying pion. [...]
arXiv:2105.09889; LHCb-PAPER-2020-045; CERN-EP-2021-060; LHCB-PAPER-2020-045.- Geneva : CERN, 2021-10-01 - 39 p. - Published in : Phys. Rev. D 104 (2021) 072010 Fulltext: 2105.09889 - PDF; LHCb-PAPER-2020-045 - PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
4.
Charged-particle multiplicity fluctuations in Pb–Pb collisions at $\sqrt{s_{\mathrm {NN}}}$  = 2.76 TeV / ALICE Collaboration
Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range $|\eta|<0.8$ and transverse momentum $0.2 < p_{\rm T} < 2.0$ GeV/$c$. The amplitude of the fluctuations is expressed in terms of the variance normalized by the mean of the multiplicity distribution. [...]
arXiv:2105.05745; CERN-EP-2021-089.- Geneva : CERN, 2021-11-17 - 17 p. - Published in : Eur. Phys. J. C 81 (2021) 1012 Draft (restricted): PDF; Fulltext: 2105.05745 - PDF; document - PDF;
5.
Measurement of $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays / LHCb Collaboration
A measurement of the $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb$^{-1}$. The flavor of the $D^0$ candidate is determined using the charge of the $D^{*\pm}$ meson, from which the decay is required to originate. [...]
arXiv:2105.01565; LHCb-PAPER-2020-047; CERN-EP-2021-058; LHCB-PAPER-2020-047.- Geneva : CERN, 2021-08-01 - 11 p. - Published in : Phys. Rev. D 104 (2021) L031102 Fulltext: LHCb-PAPER-2020-047 - PDF; 2105.01565 - PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Search for the doubly heavy baryons $\Omega^0_{bc}$ and $\Xi^0_{bc}$ decaying to $\Lambda^+_c \pi^-$ and $\Xi^+_c \pi^-$ / LHCb Collaboration
The first search for the doubly heavy $\it{\Omega}_{bc}^{\rm0}$ baryon and a search for $\it{\Xi}_{bc}^{\rm0}$ baryon are performed using $pp$ collision data collected with the LHCb experiment from 2016 to 2018 at a centre-of-mass energy of $13TeV$, corresponding to an integrated luminosity of 5.2$fb^{-1}$. The baryons are reconstructed via their decays to $\it{\Lambda_{c}^{+}\pi^{-}}$ and $\it{\Xi_{c}^{+}\pi^{-}}$. [...]
arXiv:2104.04759; LHCb-PAPER-2021-002; CERN-EP-2021-046; LHCB-PAPER-2021-002.- Geneva : CERN, 2021-08-31 - 13 p. - Published in : Chin. Phys. C 45 (2021) 093002 Fulltext: document - PDF; 2104.04759 - PDF; Related data file(s): ZIP;
7.
Search for $CP$ violation in $D_{(s)}^{+}\rightarrow h^{+}\pi^{0}$ and $D_{(s)}^{+}\rightarrow h^{+}\eta$ decays / LHCb Collaboration
Searches for $CP$ violation in the two-body decays $D_{(s)}^{+}\rightarrow h^{+}\pi^{0}$ and $D_{(s)}^{+} \rightarrow h^{+}\eta$ (where $h^{+}$ denotes a $\pi^{+}$ or $K^{+}$ meson) are performed using $pp$ collision data collected by the LHCb experiment corresponding to either 9 fb$^{-1}$ or 6 fb$^{-1}$ of integrated luminosity. The $\pi^{0}$ and $\eta$ mesons are reconstructed using the $e^{+}e^{-}\gamma$ final state, which can proceed as three-body decays $\pi^{0}\rightarrow e^{+}e^{-}\gamma$ and $\eta \rightarrow e^{+}e^{-}\gamma$, or via the two-body decays $\pi^{0}\rightarrow \gamma\gamma$ and $\eta\rightarrow\gamma\gamma$ followed by a photon conversion. [...]
arXiv:2103.11058; LHCb-PAPER-2021-001; CERN-EP-2021-036; LHCB-PAPER-2021-001.- Geneva : CERN, 2021-06-03 - 25 p. - Published in : JHEP 2106 (2021) 019 Article from SCOAP3: PDF; Fulltext: PDF; Preprint: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
8.
Measurement of prompt-production cross-section ratio $\sigma(\chi_{c2})/\sigma(\chi_{c1})$ in $p$Pb collisions at $\sqrt{s_{NN}}$ = 8.16 TeV / LHCb Collaboration
This Letter reports the first measurement of prompt $\chi_{c1}$ and $\chi_{c2}$ charmonium production in nuclear collisions at LHC energies. The cross-section ratio $\sigma(\chi_{c2}) / \sigma(\chi_{c1})$ is measured in $p$Pb collisions at $\sqrt{s_{NN}}$~=~8.16~TeV, collected with the LHCb experiment. [...]
arXiv:2103.07349; LHCb-PAPER-2020-048; CERN-EP-2021-024F; CERN-EP-2021-024; LHCB-PAPER-2020-048.- 2021-06-09 - 18 p. - Published in : Phys. Rev. C 103 (2021) 064905 Article from SCOAP3: PDF; Fulltext: 2103.07349 - PDF; LHCb-PAPER-2020-048 - PDF; Related data file(s): ZIP;
9.
Precise measurement of the $f_s/f_d$ ratio of fragmentation fractions and of $B^0_s$ decay branching fractions / LHCb Collaboration
The ratio of the $B^0_s$ and $B^0$ fragmentation fractions, $f_s/f_d$, in proton-proton collisions at the LHC, is obtained as a function of $B$-meson transverse momentum and collision centre-of-mass energy from the combined analysis of different $B$-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum, or with a function inspired by Tsallis statistics. [...]
arXiv:2103.06810; LHCb-PAPER-2020-046; CERN-EP-2021-027; LHCB-PAPER-2020-046.- 2021-08-01 - 33 p. - Published in : Phys. Rev. D 104 (2021) 032005 Fulltext: PDF; Related data file(s): ZIP;
10.
Spectroscopy in Beauty Decays at the LHCb Experiment / LHCb Collaboration
The beauty hadron decays is unique laboratory to study charmonium and charmonium-like states, such as the $\chi_{c1}(3872)$ meson, other exotic states and the tensor $D$-wave $\Psi_2(3823)$ states. However the nature of many exotic charmonium-like candidates are still unknown. [...]
arXiv:2103.04453; LHCb-PROC-2021-006; CERN-LHCb-PROC-2021-006; CERN-LHCb-PROC-2021-006.- Geneva : CERN, 2021 - 7 p. - Published in : Acta Phys. Pol. B 52 (2021) 1047 Fulltext: document - PDF; 2103.04453 - PDF; LHCb-PROC-2021-006 - PDF;
In : XXVII Cracow Epiphany Conference on Future of particle physics (Epiphany2021), Online, Poland, 7 - 10 Jan 2021, pp.1047

CERN Document Server : Encontrados 335 registros   1 - 10siguientefinal  ir al registro:
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