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Author |
AGATA and PRISMA Collaborations (Gadea, A. et al) |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Conceptual design and infrastructure for the installation of the first AGATA sub-array at LNL |
Type |
Journal Article |
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Year |
2011 |
Publication |
Nuclear Instruments & Methods in Physics Research A |
Abbreviated Journal |
Nucl. Instrum. Methods Phys. Res. A |
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Volume |
654 |
Issue |
1 |
Pages |
88-96 |
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Keywords |
AGATA; PRISMA spectrometer; DANTE heavy-ion detector; HELENA multiplicity filter; Cologne plunger; TRACE Si detector |
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Abstract |
The first implementation of the AGATA spectrometer consisting of five triple germanium detector clusters has been installed at Laboratori Nazionali di Legnaro, INFN. This setup has two major goals, the first one is to validate the gamma-tracking concept and the second is to perform an experimental physics program using the stable beams delivered by the Tandem-PIAVE-ALPI accelerator complex. A large variety of physics topics will be addressed during this campaign, aiming to investigate both neutron and proton-rich nuclei. The setup has been designed to be coupled with the large-acceptance magnetic-spectrometer PRISMA. Therefore, the in-beam prompt gamma rays detected with AGATA will be measured in coincidence with the products of multinucleon-transfer and deep-inelastic reactions measured by PRISMA. Moreover, the setup is versatile enough to host ancillary detectors, including the heavy-ion detector DANTE, the gamma-ray detector array HELENA, the Cologne plunger for lifetime measurements and the Si-pad telescope TRACE. In this paper the design; characteristics and performance figures of the setup will be described. |
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Address |
[Gadea, A] Univ Valencia, CSIC, IFIC, Inst Fis Corpuscular IFIC, E-46003 Valencia, Spain, Email: gadea@ific.uv.es |
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Elsevier Science Bv |
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English |
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ISSN |
0168-9002 |
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Conference |
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Notes |
WOS:000295765100014 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
791 |
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Permanent link to this record |
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Author |
Steer, S.J. et al; Estevez, M.E. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Isomeric states observed in heavy neutron-rich nuclei populated in the fragmentation of a (208)Pb beam |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
84 |
Issue |
4 |
Pages |
044313 - 22pp |
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Abstract |
Heavy neutron-rich nuclei were populated via the fragmentation of a E/A = 1 GeV (208)(82)Pb beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed gamma rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. The newly discovered isomers are in (204,205)(80)Hg, (201,202,204,205)(79)Au, (197,203,204)(78)Pt, (195,199-203)(77)Ir, (193,197-199)(76)Os, (196)(75)Re, (190,191)(74)W, and (189)(73)Ta. Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed. |
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Address |
[Steer, SJ; Podolyak, Z; Pietri, S; Regan, PH; Garnsworthy, AB; Bowry, M; Brandau, C; Brown, A; Catford, WN; Cullen, IJ; Gelletly, W; Jones, GA; Liu, Z; Shizuma, T; Walker, PM; Wieland, O] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England, Email: z.podolyak@surrey.ac.uk |
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Amer Physical Soc |
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English |
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0556-2813 |
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Notes |
WOS:000296517700002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
792 |
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Author |
Borexino Collaboration (Bellini, G. et al); Pena-Garay, C. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Precision Measurement of the (7)Be Solar Neutrino Interaction Rate in Borexino |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
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Volume |
107 |
Issue |
14 |
Pages |
141302 - 5pp |
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Abstract |
The rate of neutrino-electron elastic scattering interactions from 862 keV (7)Be solar neutrinos in Borexino is determined to be 46.0 +/- 1.5(stat)(-1.6)(+1.5)(syst)counts/(day . 100 ton). This corresponds to a nu(e)-equivalent (7)Be solar neutrino flux of (3.10 +/- 0.15) x 10(9) cm(-2) s(-1) and, under the assumption of nu(e) transition to other active neutrino flavours, yields an electron neutrino survival probability of 0.51 +/- 0.07 at 862 keV. The no flavor change hypothesis is ruled out at 5.0 sigma. A global solar neutrino analysis with free fluxes determines Phi(pp) = 6.06(-0.66)(+0.02) x 10(10) cm(-2) s(-1) and Phi(CNO) < 1.3 x 10(9) cm(-2) s(-1) (95% C.L.). These results significantly improve the precision with which the Mikheyev-Smirnov-Wolfenstein large mixing angle neutrino oscillation model is experimentally tested at low energy. |
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Address |
[Bellini, G; Bonetti, S; Avanzini, MB; Caccianiga, B; D'Angelo, D; Giammarchi, M; Ludhova, L; Meroni, E; Miramonti, L; Perasso, L; Ranucci, G; Re, A] Univ Studi & INFN, Dipartimento Fis, I-20133 Milan, Italy |
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Amer Physical Soc |
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English |
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ISSN |
0031-9007 |
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Notes |
WOS:000296285800007 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
793 |
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Permanent link to this record |
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Author |
BABAR Collaboration (Lees, J.P. et al); Lopez-March, N.; Martinez-Vidal, F.; Oyanguren, A. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Study of radiative bottomonium transitions using converted photons |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
84 |
Issue |
7 |
Pages |
072002 - 17pp |
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Keywords |
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Abstract |
We use (111 +/- 1) million Gamma(3S) and (89 +/- 1) million Gamma(2S) events recorded by the BABAR detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions between bottomonium states using photons that have been converted to e(+)e(-) pairs by the detector material. We observe Gamma(3S) -> gamma chi b(0,2)(1P) decay, make precise measurements of the branching fractions for chi b(1,2)(1P, 2P) -> gamma Gamma(1S) and chi b(1,2)(2P) -> gamma Gamma(2S) decays, and search for radiative decay to the eta(b)(1S) and eta(b)(2S) states. |
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Address |
[Lees, JP; Poireau, V; Prencipe, E; Tisserand, V] Univ Savoie, Lab Annecy Le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France |
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Publisher |
Amer Physical Soc |
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English |
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ISSN |
1550-7998 |
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Conference |
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Notes |
WOS:000296527100002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
795 |
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Permanent link to this record |
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Author |
n_TOF Collaboration (Belloni, F. et al); Domingo-Pardo, C.; Tain, J.L. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Measurement of the neutron-induced fission cross-section of Am-243 relative to U-235 from 0.5 to 20 MeV |
Type |
Journal Article |
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Year |
2011 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
47 |
Issue |
12 |
Pages |
160 - 8pp |
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Keywords |
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Abstract |
The ratio of the neutron-induced fission cross-sections of Am-243 and U-235 was measured in the energy range from 0.5 to 20 MeV with uncertainties of approximate to 4%. The experiment was performed at the CERN n_TOF facility using a fast ionization chamber. With the good counting statistics that could be achieved thanks to the high instantaneous flux and the low backgrounds, the present results are useful for resolving discrepancies in previous data sets and are important for future reactors with improved fuel burn-up. |
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Address |
[Belloni, F.; Calviani, M.; Mastinu, P.; Milazzo, P. M.; Abbondanno, U.; Fujii, K.; Gramegna, F.; Moreau, C.] Ist Nazl Fis Nucl INFN, Lab Nazl Legnaro, Trieste, Italy, Email: paolo.milazzo@ts.infn.it |
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Publisher |
Springer |
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English |
Summary Language |
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Edition |
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ISSN |
1434-6001 |
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Conference |
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Notes |
WOS:000300285100005 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
904 |
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Permanent link to this record |
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Author |
Langer, C.; Algora, A.; Couture, A.; Csatlos, M.; Gulyas, J.; Heil, M.; Krasznahorkay, A.; O'Donnell, J.M.; Plag, R.; Reifarth, R.; Stuhl, L.; Sonnabend, K.; Tornyi, T.; Tovesson, F. |
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Title |
Simulations and developments of the Low Energy Neutron detector Array LENA |
Type |
Journal Article |
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Year |
2011 |
Publication |
Nuclear Instruments & Methods in Physics Research A |
Abbreviated Journal |
Nucl. Instrum. Methods Phys. Res. A |
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Volume |
659 |
Issue |
1 |
Pages |
411-418 |
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Keywords |
Monte Carlo simulations; Charge-exchange reactions; Scintillation detectors; Neutron detector |
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Abstract |
Prototypes of the Low Energy Neutron detector Array (LENA) have been tested and compared with detailed GEANT simulations. LENA will consist of plastic scintillation bars with the dimensions 1000 x 45 x 10 mm(3). The tests have been performed with gamma-ray sources and neutrons originating from the neutron-induced fission of (235)U. The simulations agreed very well with the measured response and were therefore used to simulate the response to mono-energetic neutrons with different detection thresholds. LENA will be used to detect low-energy neutrons from (p,n)-type reactions with low momentum transfer foreseen at the R(3)B and EXL setups at FAIR, Darmstadt. |
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Address |
[Langer, C.; Heil, M.; Plag, R.; Reifarth, R.] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany, Email: c.langer@gsi.de |
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Publisher |
Elsevier Science Bv |
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English |
Summary Language |
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ISSN |
0168-9002 |
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Conference |
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Notes |
WOS:000297826100057 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
833 |
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Permanent link to this record |
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Author |
Botella, F.J.; Branco, G.C.; Nebot, M.; Rebelo, M.N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Two-Higgs leptonic minimal flavour violation |
Type |
Journal Article |
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Year |
2011 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
10 |
Issue |
10 |
Pages |
037 - 21pp |
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Keywords |
Higgs Physics; Beyond Standard Model; Neutrino Physics |
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Abstract |
We construct extensions of the Standard Model with two Higgs doublets, where there are flavour changing neutral currents both in the quark and leptonic sectors, with their strength fixed by the fermion mixing matrices V(CKM) and V(PMNS). These models are an extension to the leptonic sector of the class of models previously considered by Branco, Grimus and Lavoura, for the quark sector. We consider both the cases of Dirac and Majorana neutrinos and identify the minimal discrete symmetry required in order to implement the models in a natural way. |
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Address |
[Botella, F. J.; Nebot, M.] Univ Valencia, Dept Fis Teor, CSIC, E-46100 Burjassot, Spain, Email: fbotella@uv.es |
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Publisher |
Springer |
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English |
Summary Language |
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Edition |
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ISSN |
1126-6708 |
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Conference |
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Notes |
WOS:000296917100037 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
830 |
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Permanent link to this record |
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Author |
Fidalgo, J.; Lopez-Fogliani, D.E.; Muñoz, C.; Ruiz de Austri, R. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
The Higgs sector of the μnu SSM and collider physics |
Type |
Journal Article |
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Year |
2011 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
10 |
Issue |
10 |
Pages |
020 - 33pp |
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Keywords |
Higgs Physics; Supersymmetric Effective Theories; Beyond Standard Model |
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Abstract |
The μnu SSM is a supersymmetric standard model that accounts for light neutrino masses and solves the μproblem of the MSSM by simply using right-handed neutrino superfields. Since this mechanism breaks R-parity, a peculiar structure for the mass matrices is generated. The neutral Higgses are mixed with the right- and left-handed sneutrinos producing 8x8 neutral scalar mass matrices. We analyse the Higgs sector of the μnu SSM in detail, with special emphasis in possible signals at colliders. After studying in general the decays of the Higges, we focus on those processes that are genuine of the μnu SSM, and could serve to distinguish it form other supersymmetric models. In particular, we present viable benchmark points for LHC searches. For example, we find decays of a MSSM-like Higgs into two lightest neutralinos, with the latter decaying inside the detector leading to displaced vertices, and producing final states with 4 and 8 b-jets plus missing energy. Final states with leptons and missing energy are also found. |
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Address |
[Fidalgo, Javier; Munoz, Carlos] Univ Autonoma Madrid, Dept Fis Teor UAM, E-28049 Madrid, Spain, Email: javier.fidalgo@uam.es |
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Springer |
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English |
Summary Language |
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ISSN |
1126-6708 |
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Area |
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Conference |
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Notes |
WOS:000296917100020 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
831 |
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Permanent link to this record |
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Author |
T2K Collaboration (Abe, K. et al); Cervera-Villanueva, A.; Escudero, L.; Gomez-Cadenas, J.J.; Hansen, C.; Monfregola, L.; Sorel, M.; Stamoulis, P. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
The T2K experiment |
Type |
Journal Article |
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Year |
2011 |
Publication |
Nuclear Instruments & Methods in Physics Research A |
Abbreviated Journal |
Nucl. Instrum. Methods Phys. Res. A |
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Volume |
659 |
Issue |
1 |
Pages |
106-135 |
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Keywords |
Neutrinos; Neutrino oscillation; Long baseline; T2K; J-PARC; Super-Kamiokande |
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Abstract |
The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle theta(13) by observing nu(e) appearance in a nu(mu) beam. It also aims to make a precision measurement of the known oscillation parameters, Delta m(23)(2) and sin(2)2 theta(23), via nu(mu) disappearance studies. Other goals of the experiment include various neutrino cross-section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem. |
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Address |
[Beznosko, D.; Gilje, K.; Hignight, J.; Imber, J.; Jung, C. K.; Le, P. T.; Lopez, G. D.; Malafis, C. J.; McGrew, C.; Nagashima, G.; Nelson, B.; Paul, P.; Ramos, K.; Schmidt, J.; Steffens, J.; Tadepalli, A. S.; Taylor, I. J.; Toki, W.; Yanagisawa, C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA, Email: chang.jung@stonybrook.edu |
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Publisher |
Elsevier Science Bv |
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Language |
English |
Summary Language |
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ISSN |
0168-9002 |
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Conference |
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Notes |
WOS:000297826100016 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
832 |
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Permanent link to this record |
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Author |
Pavon Valderrama, M. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Perturbative renormalizability of chiral two-pion exchange in nucleon-nucleon scattering: P and D waves |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
84 |
Issue |
6 |
Pages |
064002 - 23pp |
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Keywords |
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Abstract |
We study the perturbative renormalizability of chiral two-pion exchange in nucleon-nucleon scattering for p and d waves within the effective field theory approach. The one-pion exchange potential is fully iterated at the leading order in the expansion, a choice generating a consistent and well-defined power counting that we explore in detail. The results show that perturbative chiral two-pion exchange reproduces the data up to a center-of-mass momentum of k(cm) similar to 300 MeV at next-to-next-to-leading order and that the effective field theory expansion converges up to k(cm) similar to 350 MeV. |
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Address |
Ctr Mixto CSIC Univ Valencia, Inst Fis Corpuscular IFIC, Inst Invest Paterna, ES-46071 Valencia, Spain, Email: m.pavon.valderrama@ific.uv.es |
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Amer Physical Soc |
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English |
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Edition |
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ISSN |
0556-2813 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000297936200001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
IFIC @ pastor @ |
Serial |
829 |
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Permanent link to this record |