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

CERN Accelerating science

Начало > Резултати от търсенето: Hektor, Andi
Съвети за търсене
Разширено търсене
Add to Search +
Търсене колекции:
Сортиране по: Покажи: Изходен формат:
CERN Document Server Намерени са 124 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.63 секунди. 
1.
Constraining Primordial Black Holes with the EDGES 21-cm Absorption Signal / Hektor, Andi (NICPB, Tallinn) ; Hütsi, Gert (Tartu U. ; NICPB, Tallinn) ; Marzola, Luca (NICPB, Tallinn) ; Raidal, Martti (CERN ; NICPB, Tallinn) ; Vaskonen, Ville (NICPB, Tallinn) ; Veermäe, Hardi (CERN ; NICPB, Tallinn)
The EDGES experiment has recently measured an anomalous global 21-cm spectrum due to hydrogen absorptions at redshifts of about $z\sim 17$. Model independently, the unusually low temperature of baryons probed by this observable sets strong constraints on any physical process that transfers energy into the baryonic environment at such redshifts. [...]
arXiv:1803.09697; CERN-TH-2018-073.- 2018-07-04 - 7 p. - Published in : Phys. Rev. D 98 (2018) 023503 Fulltext: PDF; Fulltext from Publisher: PDF;
Подробен запис - Подобни записи
2.
The EDGES 21 cm Anomaly and Properties of Dark Matter / Fraser, Sean (NICPB, Tallinn) ; Hektor, Andi (NICPB, Tallinn) ; Hütsi, Gert (NICPB, Tallinn) ; Kannike, Kristjan (NICPB, Tallinn) ; Marzo, Carlo (NICPB, Tallinn) ; Marzola, Luca (NICPB, Tallinn) ; Spethmann, Christian (NICPB, Tallinn) ; Racioppi, Antonio (NICPB, Tallinn) ; Raidal, Martti (CERN ; NICPB, Tallinn) ; Vaskonen, Ville (NICPB, Tallinn) et al.
The recently claimed anomaly in the measurement of the 21 cm hydrogen absorption signal by EDGES at $z\sim 17$, if cosmological, requires the existence of new physics. The possible attempts to resolve the anomaly rely on either (i) cooling the hydrogen gas via new dark matter-hydrogen interactions or (ii) modifying the soft photon background beyond the standard CMB one, as possibly suggested also by the ARCADE~2 excess. [...]
arXiv:1803.03245; CERN-TH-2018-053.- 2018-10-10 - 6 p. - Published in : Phys. Lett. B 785 (2018) 159-164 Article from SCOAP3: PDF; Fulltext: PDF;
Подробен запис - Подобни записи
3.
Search for Dark Matter Effects on Gravitational Signals from Neutron Star Mergers / Ellis, John (NICPB, Tallinn ; CERN ; King's Coll. London) ; Hektor, Andi (NICPB, Tallinn) ; Hütsi, Gert (NICPB, Tallinn ; Tartu Observ.) ; Kannike, Kristjan (NICPB, Tallinn) ; Marzola, Luca (NICPB, Tallinn) ; Raidal, Martti (NICPB, Tallinn) ; Vaskonen, Ville (NICPB, Tallinn)
Motivated by the recent detection of the gravitational wave signal emitted by a binary neutron star merger, we analyse the possible impact of dark matter on such signals. We show that dark matter cores in merging neutron stars may yield an observable supplementary peak in the gravitational wave power spectral density following the merger, which could be distinguished from the features produced by the neutron components..
arXiv:1710.05540; CERN-TH-2017-208; KCL-PH-TH-2017-50.- 2018-06-10 - 4 p. - Published in : Phys. Lett. B 781 (2018) 607-610 Article from SCOAP3: PDF; Fulltext: PDF;
Подробен запис - Подобни записи
4.
A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider / CMS Collaboration
The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force—the W+, W–, and Z0 bosons—as well as to the fundamental quarks and leptons. [...]
Geneva : CERN, 2012 - 16 p. - Published in : Science 338 (2012) 1569-1575 Preprint: PDF; External link: Supplementary material
In : Breakthrough of the year
Подробен запис - Подобни записи
5.
Double gamma-ray lines from unassociated Fermi-LAT sources revisited / Hektor, Andi (NICPB, Tallinn) ; Raidal, Martti (CERN ; NICPB, Tallinn ; Tartu U. ; Tartu, Inst. Phys.) ; Tempel, Elmo (NICPB, Tallinn ; Tartu Observ.)
We search for the presence of double gamma-ray line from unassociated Fermi-LAT sources including detailed Monte Carlo simulations to study its global statistical significance. [...]
arXiv:1208.1996 ; CERN-PH-TH-2012-221. - 2012.
Preprint
Подробен запис - Подобни записи
6.
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC / CMS Collaboration
Results are presented from searches for the standard model Higgs boson in proton-proton collisions at $\sqrt{s}$=7 and 8 TeV in the CMS experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1 inverse femtobarns at 7 TeV and 5.3 inverse femtobarns at 8 TeV. The search is performed in five decay modes: $\gamma\gamma$, ZZ, WW, $\tau^+ \tau^-$, and $b\bar{b}$. [...]
arXiv:1207.7235; CMS-HIG-12-028; CERN-PH-EP-2012-220; CMS-HIG-12-028; CERN-PH-EP-2012-220.- Geneva : CERN, 2012-08-17 - 32 p. - Published in : Phys. Lett. B 716 (2012) 30-61 Elsevier Open Access article: PDF; Fulltext: PDF; External links: Press Release; Interactions.org article; DOE Science Highlight
In : Higgs booklet, pp.30
Подробен запис - Подобни записи
7.
Evidence for indirect detection of dark matter from galaxy clusters in Fermi $\gamma$-Ray data / Hektor, Andi (NICPB, Tallinn ; Helsinki Inst. of Phys.) ; Raidal, Martti (NICPB, Tallinn ; CERN ; Tartu, Inst. Phys.) ; Tempel, Elmo (NICPB, Tallinn ; Tartu Observ.)
We search for spectral features in Fermi-LAT gamma-rays coming from regions corresponding to eighteen brightest nearby galaxy clusters determined by the magnitude of their signal line-of-site integrals. We observe a double peak-like excess over the diffuse power-law background at photon energies 110 GeV and 130 GeV with the global statistical significance up to 3.6\sigma, confirming independently earlier claims of the same excess from Galactic centre. [...]
CERN-PH-TH-2012-203; arXiv:1207.4466; CERN-PH-TH-2012-203.- 2013 - 4 p. - Published in : Astrophys. J. 762 (2013) L22 Preprint: PDF; External link: Preprint
Подробен запис - Подобни записи
8.
Performance of CMS muon reconstruction in pp collision events at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at $\sqrt{s}$ = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. [...]
arXiv:1206.4071; CMS-MUO-10-004; CERN-PH-EP-2012-173; CMS-MUO-10-004; CERN-PH-EP-2012-173.- Geneva : CERN, 2012 - 81 p. - Published in : JINST 7 (2012) P10002 Fulltext: PDF; IOP Open Access article: PDF; External link: Preprint
Подробен запис - Подобни записи
9.
Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre / Tempel, Elmo (NICPB, Tallinn ; Tartu Observ.) ; Hektor, Andi (NICPB, Tallinn) ; Raidal, Martti (NICPB, Tallinn ; Tartu, Inst. Phys. ; CERN)
We analyze publicly available Fermi-LAT high-energy gamma-ray data and confirm the existence of clear spectral feature peaked at E=130GeV. Scanning over the Galaxy we identify several disconnected regions where the observed excess originates from. [...]
arXiv:1205.1045; CERN-PH-TH-2012-114.- 2012 - 15 p. - Published in : JCAP 09 (2012) 032
- Published in : JCAP 11 (2012) A01 (Addendum) Fulltext: PDF; IOP Open Access article: PDF; IOP Open Access article (Addendum): PDF; External link: Preprint
Подробен запис - Подобни записи
10.
Shape, transverse size, and charged hadron multiplicity of jets in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
Measurements of jet characteristics from inclusive jet production in proton-proton collisions at a centre-of-mass energy of 7 TeV are presented. The data sample was collected with the CMS detector at the LHC during 2010 and corresponds to an integrated luminosity of 36 inverse picobarns. [...]
arXiv:1204.3170; CMS-QCD-10-029; CERN-PH-EP-2012-079; CMS-QCD-10-029; CERN-PH-EP-2012-079.- Geneva : CERN, 2012 - 37 p. - Published in : JHEP 06 (2012) 160 Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
Подробен запис - Подобни записи

CERN Document Server : Намерени са 124 записа   1 - 10следващкрай  отиване на запис:
Виж също: автори с подобни имена
32 Hektor, A
2 Hektor, A.
Интересувате ли се от уведомяване за нови резултати по тази заявка?
Set up a personal email alert or subscribe to the RSS feed.
Не намерихте, каквото търсите? Опитайте търсене в други сървъри:
Hektor, Andi в Amazon
Hektor, Andi в CERN EDMS
Hektor, Andi в CERN Intranet
Hektor, Andi в CiteSeer
Hektor, Andi в Google Books
Hektor, Andi в Google Scholar
Hektor, Andi в Google Web
Hektor, Andi в IEC		Hektor, Andi в IHS
Hektor, Andi в INSPIRE
Hektor, Andi в ISO
Hektor, Andi в KISS Books/Journals
Hektor, Andi в KISS Preprints
Hektor, Andi в NEBIS
Hektor, Andi в SLAC Library Catalog
Hektor, Andi в Scirus