Literature DB >> 18232858

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

R Arnaldi1, K Banicz, J Castor, B Chaurand, C Cicalò, A Colla, P Cortese, S Damjanovic, A David, A de Falco, A Devaux, L Ducroux, H En'yo, J Fargeix, A Ferretti, M Floris, A Förster, P Force, N Guettet, A Guichard, H Gulkanian, J M Heuser, M Keil, L Kluberg, C Lourenço, J Lozano, F Manso, P Martins, A Masoni, A Neves, H Ohnishi, C Oppedisano, P Parracho, P Pillot, T Poghosyan, G Puddu, E Radermacher, P Ramalhete, P Rosinsky, E Scomparin, J Seixas, S Serci, R Shahoyan, P Sonderegger, H J Specht, R Tieulent, G Usai, R Veenhof, H K Wöhri.   

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.

Entities:  

Year:  2008        PMID： 18232858     DOI： 10.1103/PhysRevLett.100.022302

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  1 in total

1.  Production of K[Formula: see text](892)[Formula: see text] and [Formula: see text](1020) in p-Pb collisions at [Formula: see text] = 5.02 TeV.

Authors:  J Adam; D Adamová; M M Aggarwal; G Aglieri Rinella; M Agnello; N Agrawal; Z Ahammed; S Ahmad; S U Ahn; S Aiola; A Akindinov; S N Alam; D Aleksandrov; B Alessandro; D Alexandre; R Alfaro Molina; A Alici; A Alkin; J R M Almaraz; J Alme; T Alt; S Altinpinar; I Altsybeev; C Alves Garcia Prado; C Andrei; A Andronic; V Anguelov; T Antičić; F Antinori; P Antonioli; L Aphecetche; H Appelshäuser; S Arcelli; R Arnaldi; O W Arnold; I C Arsene; M Arslandok; B Audurier; A Augustinus; R Averbeck; M D Azmi; A Badalà; Y W Baek; S Bagnasco; R Bailhache; R Bala; S Balasubramanian; A Baldisseri; R C Baral; A M Barbano; R Barbera; F Barile; G G Barnaföldi; L S Barnby; V Barret; P Bartalini; K Barth; J Bartke; E Bartsch; M Basile; N Bastid; S Basu; B Bathen; G Batigne; A Batista Camejo; B Batyunya; P C Batzing; I G Bearden; H Beck; C Bedda; N K Behera; I Belikov; F Bellini; H Bello Martinez; R Bellwied; R Belmont; E Belmont-Moreno; V Belyaev; P Benacek; G Bencedi; S Beole; I Berceanu; A Bercuci; Y Berdnikov; D Berenyi; R A Bertens; D Berzano; L Betev; A Bhasin; I R Bhat; A K Bhati; B Bhattacharjee; J Bhom; L Bianchi; N Bianchi; C Bianchin; J Bielčík; J Bielčíková; A Bilandzic; G Biro; R Biswas; S Biswas; S Bjelogrlic; J T Blair; D Blau; C Blume; F Bock; A Bogdanov; H Bøggild; L Boldizsár; M Bombara; J Book; H Borel; A Borissov; M Borri; F Bossú; E Botta; C Bourjau; P Braun-Munzinger; M Bregant; T Breitner; T A Broker; T A Browning; M Broz; E J Brucken; E Bruna; G E Bruno; D Budnikov; H Buesching; S Bufalino; P Buncic; O Busch; Z Buthelezi; J B Butt; J T Buxton; D Caffarri; X Cai; H Caines; L Calero Diaz; A Caliva; E Calvo Villar; P Camerini; F Carena; W Carena; F Carnesecchi; J Castillo Castellanos; A J Castro; E A R Casula; C Ceballos Sanchez; P Cerello; J Cerkala; B Chang; S Chapeland; M Chartier; J L Charvet; S Chattopadhyay; S Chattopadhyay; A Chauvin; V Chelnokov; M Cherney; C Cheshkov; B Cheynis; V Chibante Barroso; D D Chinellato; S Cho; P Chochula; K Choi; M Chojnacki; S Choudhury; P Christakoglou; C H Christensen; P Christiansen; T Chujo; S U Chung; C Cicalo; L Cifarelli; F Cindolo; J Cleymans; F Colamaria; D Colella; A Collu; M Colocci; G Conesa Balbastre; Z Conesa Del Valle; M E Connors; J G Contreras; T M Cormier; Y Corrales Morales; I Cortés Maldonado; P Cortese; M R Cosentino; F Costa; P Crochet; R Cruz Albino; E Cuautle; L Cunqueiro; T Dahms; A Dainese; M C Danisch; A Danu; D Das; I Das; S Das; A Dash; S Dash; S De; A De Caro; G de Cataldo; C de Conti; J de Cuveland; A De Falco; D De Gruttola; N De Marco; S De Pasquale; A Deisting; A Deloff; E Dénes; C Deplano; P Dhankher; D Di Bari; A Di Mauro; P Di Nezza; M A Diaz Corchero; T Dietel; P Dillenseger; R Divià; Ø Djuvsland; A Dobrin; D Domenicis Gimenez; B Dönigus; O Dordic; T Drozhzhova; A K Dubey; A Dubla; L Ducroux; P Dupieux; R J Ehlers; D Elia; E Endress; H Engel; E Epple; B Erazmus; I Erdemir; F Erhardt; B Espagnon; M Estienne; S Esumi; J Eum; D Evans; S Evdokimov; G Eyyubova; L Fabbietti; 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F Scarlassara; C Schiaua; R Schicker; C Schmidt; H R Schmidt; S Schuchmann; J Schukraft; M Schulc; T Schuster; Y Schutz; K Schwarz; K Schweda; G Scioli; E Scomparin; R Scott; M Šefčík; J E Seger; Y Sekiguchi; D Sekihata; I Selyuzhenkov; K Senosi; S Senyukov; E Serradilla; A Sevcenco; A Shabanov; A Shabetai; O Shadura; R Shahoyan; A Shangaraev; A Sharma; M Sharma; M Sharma; N Sharma; K Shigaki; K Shtejer; Y Sibiriak; S Siddhanta; K M Sielewicz; T Siemiarczuk; D Silvermyr; C Silvestre; G Simatovic; G Simonetti; R Singaraju; R Singh; S Singha; V Singhal; B C Sinha; T Sinha; B Sitar; M Sitta; T B Skaali; M Slupecki; N Smirnov; R J M Snellings; T W Snellman; C Søgaard; J Song; M Song; Z Song; F Soramel; S Sorensen; R D de Souza; F Sozzi; M Spacek; E Spiriti; I Sputowska; M Spyropoulou-Stassinaki; J Stachel; I Stan; P Stankus; G Stefanek; E Stenlund; G Steyn; J H Stiller; D Stocco; P Strmen; A A P Suaide; T Sugitate; C Suire; M Suleymanov; M Suljic; R Sultanov; M Šumbera; A Szabo; A Szanto de Toledo; I Szarka; A Szczepankiewicz; M Szymanski; U Tabassam; J Takahashi; G J Tambave; N Tanaka; M A Tangaro; M Tarhini; M Tariq; M G Tarzila; A Tauro; G Tejeda Muñoz; A Telesca; K Terasaki; C Terrevoli; B Teyssier; J Thäder; D Thomas; R Tieulent; A R Timmins; A Toia; S Trogolo; G Trombetta; V Trubnikov; W H Trzaska; T Tsuji; A Tumkin; R Turrisi; T S Tveter; K Ullaland; A Uras; G L Usai; A Utrobicic; M Vajzer; M Vala; L Valencia Palomo; S Vallero; J Van Der Maarel; J W Van Hoorne; M van Leeuwen; T Vanat; P Vande Vyvre; D Varga; A Vargas; M Vargyas; R Varma; M Vasileiou; A Vasiliev; A Vauthier; V Vechernin; A M Veen; M Veldhoen; A Velure; M Venaruzzo; E Vercellin; S Vergara Limón; R Vernet; M Verweij; L Vickovic; G Viesti; J Viinikainen; Z Vilakazi; O Villalobos Baillie; A Villatoro Tello; A Vinogradov; L Vinogradov; Y Vinogradov; T Virgili; V Vislavicius; Y P Viyogi; A Vodopyanov; M A Völkl; K Voloshin; S A Voloshin; G Volpe; B von Haller; I Vorobyev; D Vranic; J Vrláková; B Vulpescu; B Wagner; 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Journal:  Eur Phys J C Part Fields       Date:  2016-04-30       Impact factor: 4.590
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