Nothing Special   »   [go: up one dir, main page]

CERN Accelerating science

Home > Search Results: recid:2806196
Search Tips
Advanced Search
Add to Search +
Search collections:
Sort by: Display results: Output format:
CERN Document Server 2,039 records found  1 - 10nextend  jump to record: Search took 1.40 seconds. 
1.
(100)
Investigation of $K^+K^-$ pairs in the effective mass region near $2m_K$ / DIRAC Collaboration
The DIRAC experiment at CERN investigated in the reaction $\rm{p}(24~\rm{GeV}/c) + Ni$ the particle pairs $K^+K^-, \pi^+ \pi^-$ and $p \bar{p}$ with relative momentum $Q$ in the pair system less than 100 MeV/c. Because of background influence studies, DIRAC explored three subsamples of $K^+K^-$ pairs, obtained by subtracting -- using time-of-flight (TOF) technique -- background from initial $Q$ distributions with $K^+K^-$ sample fractions more than 70%, 50% and 30%. [...]
arXiv:2204.01857; CERN-EP-2022-058.- 2022-08-01 - 18 p. - Published in : Phys. Rev. D 106 (2022) 032006 Fulltext: PhysRevD.106.032006 - PDF; 2204.01857 - PDF;
Detailed record - Similar records
2.
(91)
The $\pi^+\pi^-$ Coulomb interaction study and its use in the data processing / Adeva, B. (Santiago de Compostela U.) ; Afanasyev, L. (Dubna, JINR) ; Anania, A. (INFN, Messina) ; Aogaki, S. (Bucharest, IFIN-HH) ; Benelli, A. (Prague, Tech. U.) ; Brekhovskikh, V. (Serpukhov, IHEP) ; Cechak, T. (Prague, Tech. U.) ; Chiba, M. (Tokyo Metropolitan U.) ; Chliapnikov, P. (Serpukhov, IHEP) ; Drijard, D. (Prague, Tech. U. ; CERN) et al.
In this work the Coulomb effects (Coulomb correlations) were studied using experimental $\pi^+\pi^-$ pair distributions in $Q$, the relative momentum in the pair center of mass system (c.m.s), and its projections $Q_L$ (longitudinal component) and $Q_t$ (transverse component) relative to the pair direction in the laboratory system (l.s.). The major part of the pion pairs is produced by decay of $\rho, \omega$ and $\Delta$ and other short-lived sources (Coulomb pairs). [...]
arXiv:2409.12696; CERN-EP-2023-276.- Geneva : CERN, 2024-11-01 - 11 p. - Published in : Phys. Rev. D 110 (2024) 092005 Draft (restricted): PDF; Fulltext: DIRAC-Coulomb-correct - PDF; 2409.12696 - PDF;
Detailed record - Similar records
3.
(59)
Exotic meson $\pi_1(1600)$ with $J^{PC} = 1^{-+}$ and its decay into $\rho(770)\pi$ / COMPASS Collaboration
We study the spin-exotic $J^{PC} = 1^{-+}$ amplitude in single-diffractive dissociation of 190 GeV$/c$ pions into $\pi^-\pi^-\pi^+$ using a hydrogen target and confirm the $\pi_1(1600) \to \rho(770) \pi$ amplitude, which interferes with a nonresonant $1^{-+}$ amplitude. We demonstrate that conflicting conclusions from previous studies on these amplitudes can be attributed to different analysis models and different treatment of the dependence of the amplitudes on the squared four-momentum transfer and we thus reconcile their experimental findings. [...]
arXiv:2108.01744; CERN-EP-2021–162.- 2022-01-01 - 30 p. - Published in : Phys. Rev. D 105 (2022) 012005 Fulltext: 2108.01744 - PDF; PhysRevD.105.012005 - PDF;
Detailed record - Similar records
4.
(45)
A Triangle Singularity as the Origin of the $a_1(1420)$ / Alexeev, G.D. (Dubna, JINR) ; Alexeev, M.G. (Turin U. ; INFN, Turin) ; Amoroso, A. (Turin U. ; INFN, Turin) ; Andrieux, V. (CERN ; Illinois U., Urbana) ; Anosov, V. (Dubna, JINR) ; Antoshkin, A. (Dubna, JINR) ; Augsten, K. (Dubna, JINR ; CTU, Prague) ; Augustyniak, W. (NCBJ, Warsaw) ; Azevedo, C.D.R. (Aveiro U.) ; Badełek, B. (Warsaw U.) et al.
The COMPASS experiment recently discovered a new isovector resonance-like signal with axial-vector quantum numbers, the $a_1(1420)$, decaying to $f_0(980)\pi$. With a mass too close to and a width smaller than the axial-vector ground state $a_1(1260)$, it was immediately interpreted as a new light exotic meson, similar to the $X$, $Y$, $Z$ states in the hidden-charm sector. [...]
arXiv:2006.05342; CERN-EP-2020-104.- Geneva : CERN, 2021-08-18 - 21 p. - Published in : Phys. Rev. Lett. Draft (restricted): PDF; Fulltext: CERN-EP-2020-104 - PDF; 2006.05342 - PDF;
Detailed record - Similar records
5.
(39)
Search for a New $B$ - $L$ $Z'$ Gauge Boson with the NA64 Experiment at CERN / NA64 Collaboration
A search for a new $Z'$ gauge boson associated with (un)broken B-L symmetry in the keV-GeV mass range is carried out for the first time using the missing-energy technique in the NA64 experiment at the CERN SPS. From the analysis of the data with 3.22e11 electrons on target collected during 2016-2021 runs no signal events were found. [...]
arXiv:2207.09979; CERN-EP-2022-156.- 2022-10-12 - 6 p. - Published in : Phys. Rev. Lett. 129 (2022) 161801 Fulltext: PDF;
Detailed record - Similar records
6.
(38)
Measurements of $K^0_{\textrm{S}}$, $\Lambda$ and $\bar{\Lambda}$ production in 120 GeV/$c$ p + C interactions / NA61/SHINE Collaboration
This paper presents multiplicity measurements of $K^0_{\textrm{S}}$, $\Lambda$, and $\bar{\Lambda}$ produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different periods. [...]
arXiv:2211.00183.- 2023-04-01 - 22 p. - Published in : Phys. Rev. D 107 (2023) 072004 Fulltext: 8bb4c7143adbd6d9f98679ab90a79d38 - PDF; 2211.00183 - PDF; FERMILAB-PUB-22-797-AD - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
Detailed record - Similar records
7.
(36)
Measurement of hadron production in <math display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>-</mo></mrow></msup><mtext>-</mtext><mi mathvariant="normal">C</mi></mrow></math> interactions at 158 and <math display="inline"><mrow><mn>350</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi><mo>/</mo><mi>c</mi></mrow></math> with NA61/SHINE at the CERN SPS / NA61/SHINE Collaboration
We present a measurement of the momentum spectra of $\pi^\pm$, K$^\pm$, p$^\pm$, $\Lambda$, $\bar{\Lambda}$ and K$^{0}_{S}$ produced in interactions of negatively charged pions with carbon nuclei at beam momenta of 158 and 350 GeV/c. The total production cross sections are measured as well. [...]
arXiv:2209.10561.- 2023-03-10 - 39 p. - Published in : Phys. Rev. D 107 (2023) 062004 Fulltext: 2209.10561 - PDF; 46ae31e6285716054568284be0a39328 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
Detailed record - Similar records
8.
(36)
Comparison of $pp$ and $p \bar{p}$ differential elastic cross sections and observation of the exchange of a colorless $C$-odd gluonic compound / D0 Collaboration
We describe a quantitative analysis comparing the p anti-p elastic cross section as measured by the D0 Collaboration at a center-of-mass energy of 1.96 TeV to that in pp collisions as measured by the TOTEM Collaboration at 2.76, 7, 8, and 13 TeV using a mainly model-independent approach. The TOTEM cross sections extrapolated to a center-of-mass energy of sqrt(s) = 1.96 TeV are compared with the D0 measurement in the region of the diffractive minimum and the second maximum of the pp cross section. [...]
arXiv:2012.03981; FERMILAB-PUB-20-568-E; CERN-EP-2020-236.- Geneva : CERN, 2021-08-04 - 9 p. - Published in : Phys. Rev. Lett. 127 (2021) 062003 Draft (restricted): PDF; Fulltext: fermilab-pub-20-568-e - PDF; CERN-EP-2020-236 - PDF; 2012.03981 - PDF; Fulltext from Publisher: PDF; External links: CERN Courier article; Fermilab Library Server (fulltext available); Interactions.org article; Sci News article; CERN News article; Gizmodo article; Phys.org article; Fermilab News article; SciTechDaily article
Detailed record - Similar records
9.
(34)
Unveiling the effects of multiple soft partonic interactions in <math display="inline"><mi>p</mi><mi>p</mi></math> collisions at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13.6</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math> using a new event classifier / 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. The use of these tools became very instrumental since the observation of fluid-like behavior in high-multiplicity pp collisions. [...]
arXiv:2211.06093.- 2023-04-01 - 10 p. - Published in : Phys. Rev. D 107 (2023) 076012 Fulltext: 2211.06093 - PDF; Publication - PDF;
Detailed record - Similar records
10.
(34)
Search for a light Higgs boson in single-photon decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ tagging method / Belle Collaboration
We search for a light Higgs boson ($A^0$) decaying into a $\tau^+\tau^-$ or $\mu^+\mu^-$ pair in the radiative decays of $\Upsilon(1S)$. The production of $\Upsilon(1S)$ mesons is tagged by $\Upsilon(2S)\to \pi^+ \pi^- \Upsilon(1S)$ transitions, using 158 million $\Upsilon(2S)$ events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. [...]
arXiv:2112.11852; Belle Preprint 2021-30; KEK Preprint 2021-35.- 2022-02-23 - 9 p. - Published in : Phys. Rev. Lett. 128 (2022) 081804 Fulltext: PDF;
Detailed record - Similar records

Haven't found what you were looking for? Try your search on other servers:
recid:2806196 in Amazon
recid:2806196 in CERN EDMS
recid:2806196 in CERN Intranet
recid:2806196 in CiteSeer
recid:2806196 in Google Books
recid:2806196 in Google Scholar
recid:2806196 in Google Web
recid:2806196 in IEC		recid:2806196 in IHS
recid:2806196 in INSPIRE
recid:2806196 in ISO
recid:2806196 in KISS Books/Journals
recid:2806196 in KISS Preprints
recid:2806196 in NEBIS
recid:2806196 in SLAC Library Catalog