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Preprints

Darreres entrades:
2020-06-01
12:18
Two-particle correlations in azimuthal angle and pseudorapidity in central $^7$Be+$^9$Be collisions at the CERN Super Proton Synchrotron / Aduszkiewicz, A (NA61/SHINE Collaboration) /NA61
A measurement of charged hadron pair correlations in two-dimensional $\Delta\eta \Delta\phi$ space is presented. The analysis is based on total 30 million central Be+Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19$A$, 30$A$, 40$A$, 75$A$, and 150$A$ GeV/$c$. [...]
CERN-EP-2020-103.- Geneva : CERN, 2020 - 26. Draft (restricted): PDF; Fulltext: PDF;

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2020-05-29
17:34
Measurements of $\Xi^-$ and $\overline{\Xi}^+$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment / Aduszkiewicz, A (NA61/SHINE Collaboration)
The production of $\Xi(1321)^{-}$ and $\overline{\Xi}(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/$c$. Double differential distributions in rapidity and transverse momentum are obtained from a sample of 33M inelastic events. [...]
CERN-EP-2020-102.- Geneva : CERN, 2020 - 21. Draft (restricted): PDF; Fulltext: PDF;

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2020-05-28
21:37
Measurement of b jet shapes in proton-proton collisions at $\sqrt{s} = $ 5.02 TeV
We present the first study of charged-hadron production associated with jets originating from b quarks in proton-proton collisions at a center-of-mass energy of 5.02 TeV. [...]
CERN-EP-2020-060 ; CMS-HIN-18-020-003.
- 2020.
Additional information for the analysis - CMS AuthorList - Fulltext

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2020-05-28
16:30
Study of the $\psi_2(3823)$ and $\chi_{c1}(3872)$ states in $B^+\to (J/\psi \pi^+\pi^-)K^+$ decays
The decays $B^+\rightarrow J/\psi \pi^+ \pi^- K^+$ are studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1}$ collected with the LHCb detector in proton-proton collisions between 2011 and 2018. [...]
CERN-EP-2020-071 ; arXiv:2005.13422 ; LHCB-PAPER-2020-009.
- 2020.
Fulltext - Related data files - Supplementary information

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2020-05-28
16:15
Study of the lineshape of the $\chi_{c1}(3872)$ state
A study of the lineshape of the $\chi_{c1}(3872)$ state is made using a data sample corresponding to an integrated luminosity of 3fb$^{-1}$ collected in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV with the LHCb detector. [...]
CERN-EP-2020-086 ; arXiv:2005.13419 ; LHCB-PAPER-2020-008.
- 2020.
Fulltext - Related data file(s) - Supplementary information

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2020-05-27
13:15
Elliptic and triangular flow of (anti)deuterons in Pb-Pb collisions at $\sqrt{s_{NN}}$= 5.02 TeV / ALICE Collaboration, CERN /ALICE
The measurements of the (anti)deuterons elliptic flow ($v_2$) and the first measurements of triangular flow ($v_3$) in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon collisions $\sqrt{s_{NN}}$ = 5.02 TeV are presented. A mass ordering at low transverse momentum ($p_{\rm T}$) is observed when comparing these measurements with those of other identified hadrons, as expected from relativistic hydrodynamics. [...]
CERN-EP-2020-099.- Geneva : CERN, 2020 Draft (restricted): PDF;

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2020-05-27
10:06
Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at $\sqrt{\it{s}_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV / ALICE Collaboration, CERN /ALICE
Systematic studies of charge-dependent two- and three-particle correlations in Pb--Pb collisions at $\sqrt{\it{s}_\mathrm{{NN}}} = $ 2.76~and 5.02~TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity ($\eta$) and transverse momentum ($p_{\rm{T}}$) ranges $\left|\eta \right| < 0.8$ and $0.2 < p_{\mathrm{T}} < 5$~GeV/$c$. [...]
CERN-EP-2020-098.- Geneva : CERN, 2020 Draft (restricted): PDF;

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2020-05-26
09:05
Search for Higgs boson decays into two new low-mass spin-0 particles in the 4$b$ channel with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV
This paper describes a search for beyond the Standard Model decays of the Higgs boson into a pair of new spin-0 particles subsequently decaying into $b$-quark pairs, $H \rightarrow aa \rightarrow (b\bar{b})(b\bar{b})$, using proton-proton collision data collected by the ATLAS detector at the Large Hadron Collider at center-of-mass energy $\sqrt{s}=13$ TeV. [...]
CERN-EP-2020-067.
- 2020.
Fulltext - Previous draft version

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2020-05-26
06:40
Instrumentation for high-resolution laser spectroscopy at the ALTO radioactive-beam facility / Yordanov, D.T. (Orsay, IPN) ; Atanasov, D. (CERN) ; Bissell, M.L. (Manchester U.) ; Franchoo, S. (Orsay, IPN) ; Georgiev, G. (CSNSM, Orsay) ; Kanellakopoulos, A. (Leuven U.) ; Lechner, S. (CERN ; TU Vienna) ; Ramirez, E. Minaya (Orsay, IPN) ; Nichita, D. (Bucharest, IFIN-HH ; Bucharest, Polytechnic Inst.) ; Rodríguez, L.V. (Heidelberg, Max Planck Inst.) et al.
Collinear laser spectroscopy is one of the essential tools for nuclear-structure studies. [...]
arXiv:2005.03007.
- 4 p.
Fulltext

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2020-05-26
02:36
Measurement of isolated photon-hadron correlations in 5 TeV pp and pPb data / ALICE Collaboration, CERN /ALICE
This paper presents isolated photon-hadron correlations using pp and p-Pb data collected by the ALICE detector at the LHC. For photons with |$\eta$| < 0.67 and 12 < $p_{\rm{T}}$ < 40 GeV/$c$, the associated yield of charged particles in the range |$\eta$| < 0.80 and 0.5 < $p_{\rm{T}}$ < 10 GeV/$c$ is presented. [...]
CERN-EP-2020-097.- Geneva : CERN, 2020 - 19. Draft (restricted): PDF;

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