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  1. Article ; Online: The Compressed Baryonic Matter Experiment at FAIR

    Heuser J.M.

    EPJ Web of Conferences, Vol 13, p

    2011  Volume 03001

    Abstract: The Compressed Baryonic Matter (CBM) experiment is being planned at the international research centre FAIR, under realization next to the GSI laboratory in Darmstadt, Germany. Its physics programme addresses the QCD phase diagram in the region of highest ...

    Abstract The Compressed Baryonic Matter (CBM) experiment is being planned at the international research centre FAIR, under realization next to the GSI laboratory in Darmstadt, Germany. Its physics programme addresses the QCD phase diagram in the region of highest net baryon densities. Of particular interest are the expected first order phase transition from partonic to hadronic matter, ending in a critical point, and modifications of hadron properties in the dense medium as a signal of chiral symmetry restoration. Laid out as a fixed-target experiment at the synchrotrons SIS-100/SIS-300, providing magnetic bending power of 100 and 300 T/m, the CBM detector will record both proton-nucleus and nucleus-nucleus collisions at beam energies up to 45A GeV. Hadronic, leptonic and photonic observables have to be measured with large acceptance. The nuclear interaction rates will reach up to 10 MHz to measure extremely rare probes like charm near threshold. Two versions of the experiment are being studied, optimized for either electron-hadron or muon identification, combined with silicon detector based charged-particle tracking and micro-vertex detection. The research programme will start at SIS-100 with ion beams between 2 and 11A GeV, and protons up to energies of 29 GeV using the HADES detector and an initial configuration of the CBM experiment. The CBM physics requires the development of novel detector systems, trigger and data acquisition concepts as well as innovative real-time reconstruction techniques. Progress with feasibility studies of the experiment and the development of its detector systems are discussed.
    Keywords Physics ; QC1-999 ; Science ; Q ; DOAJ:Physics (General) ; DOAJ:Physics and Astronomy
    Subject code 530
    Language English
    Publishing date 2011-04-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Book ; Online: Optical Inspection of the Silicon Micro-strip Sensors for the CBM Experiment employing Artificial Intelligence

    Lavrik, E. / Shiroya, M. / Schmidt, H. R. / Toia, A. / Heuser, J. M.

    2021  

    Abstract: Optical inspection of 1191 silicon micro-strip sensors was performed using a custom made optical inspection setup, employing a machine-learning based approach for the defect analysis and subsequent quality assurance. Furthermore, metrological control of ... ...

    Abstract Optical inspection of 1191 silicon micro-strip sensors was performed using a custom made optical inspection setup, employing a machine-learning based approach for the defect analysis and subsequent quality assurance. Furthermore, metrological control of the sensor's surface was performed. In this manuscript, we present the analysis of various sensor surface defects. Among these are implant breaks, p-stop breaks, aluminium strip opens, aluminium strip shorts, surface scratches, double metallization layer defects, passivation layer defects, bias resistor defects as well as dust particle identification. The defect detection was done using the application of Convolutional Deep Neural Networks (CDNNs). From this, defective strips and defect clusters were identified, as well as a 2D map of the defects using their geometrical positions on the sensor was performed. Based on the total number of defects found on the sensor's surface, a method for the estimation of sensor's overall quality grade and quality score was proposed.
    Keywords Physics - Instrumentation and Detectors ; Computer Science - Computer Vision and Pattern Recognition ; High Energy Physics - Experiment
    Subject code 620
    Publishing date 2021-07-16
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Book ; Online: From 3D to 5D tracking

    Teklishyn, M. / Rodríguez, A. Rodríguez / Agarwal, K. / Bajdel, M. / Sánchez, L. M. Collazo / Frankenfeld, U. / Heuser, J. M. / Lehnert, J. / Mehta, S. / Garcés, D. Rodríguez / Zaldívar, D. A. Ramírez / Schmidt, C. J. / Schmidt, H. R. / Toia, A.

    SMX ASIC-based Double-Sided Micro-Strip detectors for comprehensive space, time, and energy measurements

    2023  

    Abstract: We present the recent development of a lightweight detector capable of accurate spatial, timing, and amplitude resolution of charged particles. The technology is based on double-sided double-metal p+\,--\,n\,--\,n+ micro-strip silicon sensors, ultra- ... ...

    Abstract We present the recent development of a lightweight detector capable of accurate spatial, timing, and amplitude resolution of charged particles. The technology is based on double-sided double-metal p+\,--\,n\,--\,n+ micro-strip silicon sensors, ultra-light long aluminum-polyimide micro-cables for the analogue signal transfer, and a custom-developed SMX read-out ASIC capable of measurement of the time ($\Delta t \lesssim 5 \,\mathrm{ns}$) and amplitude. Dense detector integration enables a material budget $>0.3\,\% X_0$. A sophisticated powering and grounding scheme keeps the noise under control. In addition to its primary application in Silicon Tracking System of the future CBM experiment in Darmstadt, our detector will be utilized in other research applications.

    Comment: 9 pages, 7 figures, TWEPP 2023 proceedings
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2023-11-03
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Book ; Online: Optimization of various isolation techniques to develop low noise, radiation hard double-sided silicon strip detectors for the CBM Silicon Tracking System

    Chatterji, S. / Singla, M. / Mueller, W. F. J. / Heuser, J. M.

    2012  

    Abstract: This paper reports on the design optimization done for Double Sided silicon microStrip Detectors(DSSDs) to reduce the Equivalent Noise Charge (ENC) and to maximize the breakdown voltage and Charge Collection Efficiency. Various isolation techniques have ... ...

    Abstract This paper reports on the design optimization done for Double Sided silicon microStrip Detectors(DSSDs) to reduce the Equivalent Noise Charge (ENC) and to maximize the breakdown voltage and Charge Collection Efficiency. Various isolation techniques have been explored and a detailed comparison has been studied to optimize the detector performance. For the evaluation of the performance of the silicon detectors, a radiation damage model has been included. The neutron fluence is expected to be 2x10^{13}n_{eq} cm$^{-2}$ per year for five years of expected CBM run with intermediate periods of warm maintenance, cold maintenance and shutdown. Transient simulations have been performed to estimate the charge collection performance of the irradiated detectors and simulations have been verified with experimental data.
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2012-11-27
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: First results on angular distributions of thermal dileptons in nuclear collisions.

    Arnaldi, R / Banicz, K / Castor, J / Chaurand, B / Cicalò, C / Colla, A / Cortese, P / Damjanovic, S / David, A / de Falco, A / Devaux, A / Ducroux, L / En'yo, H / Fargeix, J / Ferretti, A / Floris, M / Förster, A / Force, P / Guettet, N /
    Guichard, A / Gulkanian, H / Heuser, J M / Keil, M / Kluberg, L / Lourenço, C / Lozano, J / Manso, F / Martins, P / Masoni, A / Neves, A / Ohnishi, H / Oppedisano, C / Parracho, P / Pillot, P / Poghosyan, T / Puddu, G / Radermacher, E / Ramalhete, P / Rosinsky, P / Scomparin, E / Seixas, J / Serci, S / Shahoyan, R / Sonderegger, P / Specht, H J / Tieulent, R / Usai, G / Veenhof, R / Wöhri, H K

    Physical review letters

    2009  Volume 102, Issue 22, Page(s) 222301

    Abstract: The NA60 experiment at the CERN Super Proton Synchrotron has studied dimuon production in 158A GeV In-In collisions. The strong excess of pairs above the known sources found in the complete mass region 0.2

    Abstract The NA60 experiment at the CERN Super Proton Synchrotron has studied dimuon production in 158A GeV In-In collisions. The strong excess of pairs above the known sources found in the complete mass region 0.2<M<2.6 GeV has previously been interpreted as thermal radiation. We now present first results on the associated angular distributions. Using the Collins-Soper reference frame, the structure function parameters lambda, mu, and nu are measured to be zero, and the projected distributions in polar and azimuth angles are found to be uniform. The absence of any polarization is consistent with the interpretation of the excess dimuons as thermal radiation from a randomized system.<br />
    Language English
    Publishing date 2009-06-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.102.222301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Evidence for radial flow of thermal dileptons in high-energy nuclear collisions.

    Arnaldi, R / Banicz, K / Castor, J / Chaurand, B / Cicalò, C / Colla, A / Cortese, P / Damjanovic, S / David, A / de Falco, A / Devaux, A / Ducroux, L / En'yo, H / Fargeix, J / Ferretti, A / Floris, M / Förster, A / Force, P / Guettet, N /
    Guichard, A / Gulkanian, H / Heuser, J M / Keil, M / Kluberg, L / Lourenço, C / Lozano, J / Manso, F / Martins, P / Masoni, A / Neves, A / Ohnishi, H / Oppedisano, C / Parracho, P / Pillot, P / Poghosyan, T / Puddu, G / Radermacher, E / Ramalhete, P / Rosinsky, P / Scomparin, E / Seixas, J / Serci, S / Shahoyan, R / Sonderegger, P / Specht, H J / Tieulent, R / Usai, G / Veenhof, R / Wöhri, H K

    Physical review letters

    2008  Volume 100, Issue 2, Page(s) 22302

    Abstract: The NA60 experiment at the CERN SPS has studied low-mass dimuon production in 158A GeV In-In collisions. An excess of pairs above the known meson decays has been reported before. We now present precision results on the associated transverse momentum ... ...

    Abstract The NA60 experiment at the CERN SPS has studied low-mass dimuon production in 158A GeV In-In collisions. An excess of pairs above the known meson decays has been reported before. We now present precision results on the associated transverse momentum spectra. The slope parameter Teff extracted from the spectra rises with dimuon mass up to the rho, followed by a sudden decline above. While the initial rise is consistent with the expectations for radial flow of a hadronic decay source, the decline signals a transition to an emission source with much smaller flow. This may well represent the first direct evidence for thermal radiation of partonic origin in nuclear collisions.
    Language English
    Publishing date 2008-01-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.100.022302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: J/psi production in Indium-Indium collisions at 158 GeV/nucleon.

    Arnaldi, R / Banicz, K / Castor, J / Chaurand, B / Cicalò, C / Colla, A / Cortese, P / Damjanovic, S / David, A / de Falco, A / Devaux, A / Ducroux, L / En'yo, H / Fargeix, J / Ferretti, A / Floris, M / Förster, A / Force, P / Guettet, N /
    Guichard, A / Gulkanian, H / Heuser, J M / Keil, M / Kluberg, L / Lourenço, C / Lozano, J / Manso, F / Martins, P / Masoni, A / Neves, A / Ohnishi, H / Oppedisano, C / Parracho, P / Pillot, P / Poghosyan, T / Puddu, G / Radermacher, E / Ramalhete, P / Rosinsky, P / Scomparin, E / Seixas, J / Serci, S / Shahoyan, R / Sonderegger, P / Specht, H J / Tieulent, R / Usai, G / Veenhof, R / Wöhri, H K

    Physical review letters

    2007  Volume 99, Issue 13, Page(s) 132302

    Abstract: The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/psi in In-In collisions. We have studied the J/psi centrality distribution, and we have compared it with the ... ...

    Abstract The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/psi in In-In collisions. We have studied the J/psi centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than approximately 80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.
    Language English
    Publishing date 2007-09-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.99.132302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: First measurement of the rho spectral function in high-energy nuclear collisions.

    Arnaldi, R / Averbeck, R / Banicz, K / Castor, J / Chaurand, B / Cicalò, C / Colla, A / Cortese, P / Damjanovic, S / David, A / De Falco, A / Devaux, A / Drees, A / Ducroux, L / En'yo, H / Fargeix, J / Ferretti, A / Floris, M / Förster, A /
    Force, P / Guettet, N / Guichard, A / Gulkanian, H / Heuser, J M / Keil, M / Kluberg, L / Lourenço, C / Lozano, J / Manso, F / Masoni, A / Martins, P / Neves, A / Ohnishi, H / Oppedisano, C / Parracho, P / Pillot, Ph / Puddu, G / Radermacher, E / Ramalhete, P / Rosinsky, P / Scomparin, E / Seixas, J / Serci, S / Shahoyan, R / Sonderegger, P / Specht, H J / Tieulent, R / Usai, G / Veenhof, R / Wöhri, H K

    Physical review letters

    2006  Volume 96, Issue 16, Page(s) 162302

    Abstract: We report on a precision measurement of low-mass muon pairs in 158 AGeV indium-indium collisions at the CERN SPS. A significant excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size of 360,000 ... ...

    Abstract We report on a precision measurement of low-mass muon pairs in 158 AGeV indium-indium collisions at the CERN SPS. A significant excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size of 360,000 dimuons and the good mass resolution of about 2% allow us to isolate the excess by subtraction of the decay sources. The shape of the resulting mass spectrum is consistent with a dominant contribution from pi+pi- -->rho -->mu+mu- annihilation. The associated space-time averaged spectral function shows a strong broadening, but essentially no shift in mass. This may rule out theoretical models linking hadron masses directly to the chiral condensate.
    Language English
    Publishing date 2006-04-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.96.162302
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  9. Article ; Online: Measurement of direct photons in Au+Au collisions at √(s(NN))=200 GeV.

    Afanasiev, S / Aidala, C / Ajitanand, N N / Akiba, Y / Al-Jamel, A / Alexander, J / Aoki, K / Aphecetche, L / Armendariz, R / Aronson, S H / Averbeck, R / Awes, T C / Azmoun, B / Babintsev, V / Baldisseri, A / Barish, K N / Barnes, P D / Bassalleck, B / Bathe, S /
    Batsouli, S / Baublis, V / Bauer, F / Bazilevsky, A / Belikov, S / Bennett, R / Berdnikov, Y / Bjorndal, M T / Boissevain, J G / Borel, H / Boyle, K / Brooks, M L / Brown, D S / Bucher, D / Buesching, H / Bumazhnov, V / Bunce, G / Burward-Hoy, J M / Butsyk, S / Campbell, S / Chai, J-S / Chernichenko, S / Chi, C Y / Chiba, J / Chiu, M / Choi, I J / Chujo, T / Cianciolo, V / Cleven, C R / Cobigo, Y / Cole, B A / Comets, M P / Connors, M / Constantin, P / Csanád, M / Csörgő, T / Dahms, T / Das, K / David, G / Delagrange, H / Denisov, A / d'Enterria, D / Deshpande, A / Desmond, E J / Dietzsch, O / Dion, A / Drachenberg, J L / Drapier, O / Drees, A / Dubey, A K / Durum, A / Dzhordzhadze, V / Efremenko, Y V / Egdemir, J / Enokizono, A / En'yo, H / Espagnon, B / Esumi, S / Fields, D E / Fleuret, F / Fokin, S L / Forestier, B / Fraenkel, Z / Frantz, J E / Franz, A / Frawley, A D / Fukao, Y / Fung, S-Y / Gadrat, S / Gastineau, F / Germain, M / Glenn, A / Gonin, M / Gosset, J / Goto, Y / Granier de Cassagnac, R / Grau, N / Greene, S V / Grosse Perdekamp, M / Gunji, T / Gustafsson, H-Å / Hachiya, T / Hadj Henni, A / Haggerty, J S / Hagiwara, M N / Hamagaki, H / Harada, H / Hartouni, E P / Haruna, K / Harvey, M / Haslum, E / Hasuko, K / Hayano, R / He, X / Heffner, M / Hemmick, T K / Heuser, J M / Hiejima, H / Hill, J C / Hobbs, R / Holmes, M / Holzmann, W / Homma, K / Hong, B / Horaguchi, T / Hur, M G / Ichihara, T / Iinuma, H / Imai, K / Imrek, J / Inaba, M / Isenhower, D / Isenhower, L / Ishihara, M / Isobe, T / Issah, M / Isupov, A / Jacak, B V / Jia, J / Jin, J / Jinnouchi, O / Johnson, B M / Joo, K S / Jouan, D / Kajihara, F / Kametani, S / Kamihara, N / Kaneta, M / Kang, J H / Kawagishi, T / Kazantsev, A V / Kelly, S / Khanzadeev, A / Kim, D J / Kim, E / Kim, Y-S / Kinney, E / Kiss, A / Kistenev, E / Kiyomichi, A / Klein-Boesing, C / Kochenda, L / Kochetkov, V / Komkov, B / Konno, M / Kotchetkov, D / Kozlov, A / Kroon, P J / Kunde, G J / Kurihara, N / Kurita, K / Kweon, M J / Kwon, Y / Kyle, G S / Lacey, R / Lajoie, J G / Lebedev, A / Le Bornec, Y / Leckey, S / Lee, D M / Lee, M K / Leitch, M J / Leite, M A L / Li, X H / Lim, H / Litvinenko, A / Liu, M X / Maguire, C F / Makdisi, Y I / Malakhov, A / Malik, M D / Manko, V I / Masui, H / Matathias, F / McCain, M C / McGaughey, P L / Miake, Y / Miller, T E / Milov, A / Mioduszewski, S / Mishra, G C / Mitchell, J T / Morrison, D P / Moss, J M / Moukhanova, T V / Mukhopadhyay, D / Murata, J / Nagamiya, S / Nagata, Y / Nagle, J L / Naglis, M / Nakamura, T / Newby, J / Nguyen, M / Norman, B E / Nyanin, A S / Nystrand, J / O'Brien, E / Ogilvie, C A / Ohnishi, H / Ojha, I D / Okada, K / Omiwade, O O / Oskarsson, A / Otterlund, I / Ozawa, K / Pak, R / Pal, D / Palounek, A P T / Pantuev, V / Papavassiliou, V / Park, J / Park, W J / Pate, S F / Pei, H / Peng, J-C / Pereira, H / Peresedov, V / Peressounko, D Yu / Pinkenburg, C / Pisani, R P / Purschke, M L / Purwar, A K / Qu, H / Rak, J / Ravinovich, I / Read, K F / Reuter, M / Reygers, K / Riabov, V / Riabov, Y / Roche, G / Romana, A / Rosati, M / Rosendahl, S S E / Rosnet, P / Rukoyatkin, P / Rykov, V L / Ryu, S S / Sahlmueller, B / Saito, N / Sakaguchi, T / Sakai, S / Samsonov, V / Sato, H D / Sato, S / Sawada, S / Semenov, V / Seto, R / Sharma, D / Shea, T K / Shein, I / Shibata, T-A / Shigaki, K / Shimomura, M / Shohjoh, T / Shoji, K / Sickles, A / Silva, C L / Silvermyr, D / Sim, K S / Singh, C P / Singh, V / Skutnik, S / Smith, W C / Soldatov, A / Soltz, R A / Sondheim, W E / Sorensen, S P / Sourikova, I V / Staley, F / Stankus, P W / Stenlund, E / Stepanov, M / Ster, A / Stoll, S P / Sugitate, T / Suire, C / Sullivan, J P / Sziklai, J / Tabaru, T / Takagi, S / Takagui, E M / Taketani, A / Tanaka, K H / Tanaka, Y / Tanida, K / Tannenbaum, M J / Taranenko, A / Tarján, P / Thomas, T L / Togawa, M / Tojo, J / Torii, H / Towell, R S / Tram, V-N / Tserruya, I / Tsuchimoto, Y / Tuli, S K / Tydesjö, H / Tyurin, N / Vale, C / Valle, H / van Hecke, H W / Velkovska, J / Vértesi, R / Vinogradov, A A / Vznuzdaev, E / Wagner, M / Wang, X R / Watanabe, Y / Wessels, J / White, S N / Willis, N / Winter, D / Woody, C L / Wysocki, M / Xie, W / Yanovich, A / Yokkaichi, S / Young, G R / Younus, I / Yushmanov, I E / Zajc, W A / Zaudtke, O / Zhang, C / Zimányi, J / Zolin, L

    Physical review letters

    2012  Volume 109, Issue 15, Page(s) 152302

    Abstract: We report the measurement of direct photons at midrapidity in Au+Au collisions at √(s(NN))=200 GeV. The direct photon signal was extracted for the transverse momentum range of 4 GeV/c

    Abstract We report the measurement of direct photons at midrapidity in Au+Au collisions at √(s(NN))=200 GeV. The direct photon signal was extracted for the transverse momentum range of 4 GeV/c<p(T)<22 GeV/c, using a statistical method to subtract decay photons from the inclusive photon sample. The direct photon nuclear modification factor R(AA) was calculated as a function of p(T) for different Au+Au collision centralities using the measured p+p direct photon spectrum and compared to theoretical predictions. R(AA) was found to be consistent with unity for all centralities over the entire measured p(T) range. Theoretical models that account for modifications of initial direct photon production due to modified parton distribution functions in Au and the different isospin composition of the nuclei predict a modest change of R(AA) from unity. They are consistent with the data. Models with compensating effects of the quark-gluon plasma on high-energy photons, such as suppression of jet-fragmentation photons and induced-photon bremsstrahlung from partons traversing the medium, are also consistent with this measurement.<br />
    Language English
    Publishing date 2012-10-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.109.152302
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  10. Article ; Online: Charged Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt[S(NN)]=200 GeV.

    Afanasiev, S / Aidala, C / Ajitanand, N N / Akiba, Y / Alexander, J / Al-Jamel, A / Aoki, K / Aphecetche, L / Armendariz, R / Aronson, S H / Averbeck, R / Awes, T C / Azmoun, B / Babintsev, V / Baldisseri, A / Barish, K N / Barnes, P D / Bassalleck, B / Bathe, S /
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    Physical review letters

    2009  Volume 103, Issue 14, Page(s) 142301

    Abstract: Bose-Einstein correlations of charged kaons are used to probe Au+Au collisions at sqrt[S(NN)]=200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three-dimensional Gaussian source radii are extracted, ... ...

    Abstract Bose-Einstein correlations of charged kaons are used to probe Au+Au collisions at sqrt[S(NN)]=200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three-dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function of N(part)1/3 with a zero intercept. Imaging analysis shows a deviation from a Gaussian tail at r greater than or approximately equal to 10 fm, although the bulk emission at lower radius is well described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy-ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
    Language English
    Publishing date 2009-10-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.103.142301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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