Abstract

The production of mesons containing strange quarks (K-S(0), phi) and both singly and doubly strange baryons (Lambda, (Lambda) over bar, and Xi(-) + (Xi) over bar (+)) are measured at mid-rapidity in pp collisions at root s = 0.9 TeV with the ALICE experiment at the LHC. The results are obtained from the analysis of about 250 k minimum bias events recorded in 2009. Measurements of yields (dN/dy) and transverse momentum spectra at mid-rapidity for inelastic pp collisions are presented. For mesons, we report yields (< dN/dy >) of 0.184 +/- 0.002(stat.) +/- 0.006(syst.) for K-S(0) and 0.021 +/- 0.004(stat.) +/- 0.003(syst.) for phi. For baryons, we find < dN/dy > = 0.048 +/- 0.001(stat.) +/- 0.004(syst.) for Lambda, 0.047 +/- 0.002(stat.) +/- 0.005(syst.) for (Lambda) over bar and 0.0101 +/- 0.0020(stat.) +/- 0.0009(syst.) for Xi(-) + (Xi) over bar (+). The results are also compared with predictions for identified particle spectra from QCD-inspired models and provide a baseline for comparisons with both future pp measurements at higher energies and heavy-ion collisions.

Autore Pugliese

• Mastroserio Annalisa

Tutti gli autori

• Aamodt K , Quintana AA , Adamova D , Adare AM , Aggarwal MM , Rinella GA , Agocs AG , Salazar SA , Ahammed Z , Ahmad N , Masoodi AA , Ahn SU , Akindinov A , Aleksandrov D , Alessandro B , Molina RA , Alici A , Alkin A , Avina EA , Alt T , Altini V , Altinpinar S , Altsybeev I , Andrei C , Andronic A , Anguelov V , Anson C , Anticic T , Antinori F , Antonioli P , Aphecetche L , Appelshauser H , Arbor N , Arcelli S , Arend A , Armesto N , Arnaldi R , Aronsson T , Arsene IC , Asryan A , Augustinus A , Averbeck R , Awes TC , Aysto J , Azmi MD , Bach M , Badala A , Baek YW , Bagnasco S , Bailhache R , Bala R , Ferroli RB , Baldisseri A , Baldit A , Ban J , Barbera R , Barile F , Barnafoldi GG , Barnby LS , Barret V , Bartke J , Basile M , Bastid N , Bathen B , Batigne G , Batyunya B , Baumann C , Bearden IG , Beck H , Belikov I , Bellini F , Bellwied R , Belmont-Moreno E , Beole S , Berceanu I , Bercuci A , Berdermann E , Berdnikov Y , Betev L , Bhasin A , Bhati AK , Bianchi L , Bianchi N , Bianchin C , Bielcik J , Bielcikova J , Bilandzic A , Biolcati E , Blanc A , Blanco F , Blanco F , Blau D , Blume C , Boccioli M , Bock N , Bogdanov A , Boggild H , Bogolyubsky M , Boldizsar L , Bombara M , Bombonati C , Book J , Borel H , Bortolin C , Bose S , Bossu F , Botje M , Bottger S , Boyer B , Braun-Munzinger P , Bravina L , Bregant M , Breitner T , Broz M , Brun R , Bruna E , Bruno GE , Budnikov D , Buesching H , Busch O , Buthelezi Z , Caffarri D , Cai X , Caines H , Villar EC , Camerini P , Roman VC , Romeo GC , Carena F , Carena W , Carminati F , Diaz AC , Caselle M , Castellanos JC , Catanescu V , Cavicchioli C , Cerello P , Chang B , Chapeland S , Charvet JL , Chattopadhyay S , Chattopadhyay S , Cherney M , Cheshkov C , Cheynis B , Chiavassa E , Barroso VC , Chinellato DD , Chochula P , Chojnacki M , Christakoglou P , Christensen CH , Christiansen P , Chujo T , Cicalo C , Cifarelli L , Cindolo F , Cleymans J , Coccetti F , Coffin JP , Coli S , Balbastre GC , del Valle ZC , Constantin P , Contin G , Contreras JG , Cormier TM , Morales YC , Maldonado IC , Cortese P , Cosentino MR , Costa F , Cotallo ME , Crescio E , Crochet P , Cuautle E , Cunqueiro L , Erasmo GD , Dainese A , Dalsgaard HH , Danu A , Das D , Das I , Dash A , Dash S , De S , Moregula AD , de Barros GOV , De Caro A , de Cataldo G , de Cuveland J , De Falco A , De Gruttola D , De Marco N , De Pasquale S , De Remigis R , de Rooij R , Delagrange H , Mercado YD , Dellacasa G , Deloff A , Demanov V , Denes E , Deppman A , Di Bari D , Di Giglio C , Di Liberto S , Di Mauro A , Di Nezza P , Dietel T , Divia R , Djuvsland O , Dobrin A , Dobrowolski T , Dominguez I , Donigus B , Dordic O , Driga O , Dubey AK , Dubuisson J , Ducroux L , Dupieux P , Majumdar AKD , Majumdar MRD , Elia D , Emschermann D , Engel H , Erdal HA , Espagnon B , Estienne M , Esumi S , Evans D , Evrard S , Eyyubova G , Fabjan CW , Fabris D , Faivre J , Falchieri D , Fantoni A , Fasel M , Fearick R , Fedunov A , Fehlker D , Fekete V , Felea D , Feofilov G , Tellez AF , Ferretti A , Ferretti R , Figueredo MAS , Filchagin S , Fini R , Finogeev D , Fionda FM , Fiore EM , Floris M , Foertsch S , Foka P , Fokin S , Fragiacomo E , Fragkiadakis M , Frankenfeld U , Fuchs U , Furano F , Furget C , Girard MF , Gaardhoje JJ , Gadrat S , Gagliardi M , Gago A , Gallio M , Ganoti P , Garabatos C , Gemme R , Gerhard J , Germain M , Geuna C , Gheata A , Gheata M , Ghidini B , Ghosh P , Girard MR , Giraudo G , Giubellino P , Gladysz-Dziadus E , Glassel P , Gomez R , Gonzalez-Trueba LH , Gonzalez-Zamora P , Santos HG , Gorbunov S , Gotovac S , Grabski V , Grajcarek R , Grelli A , Grigoras A , Grigoras C , Grigoriev V , Grigoryan A , Grigoryan S , Grinyov B , Grion N , Gros P , Grosse-Oetringhaus JF , Grossiord JY , Grosso R , Guber F , Guernane R , Gutierrez CG , Guerzoni B , Gulbrandsen K , Gunji T , Gupta A , Gupta R , Gutbrod H , Haaland O , Hadjidakis C , Haiduc M , Hamagaki H , Hamar G , Harris JW , Hartig M , Hasch D , Hasegan D , Hatzifotiadou D , Hayrapetyan A , Heide M , Heinz M , Helstrup H , Herghelegiu A , Hernandez C , Corral GH , Herrmann N , Hetland KF , Hicks B , Hille PT , Hippolyte B , Horaguchi T , Hori Y , Hristov P , Hrivnacova I , Huang M , Huber S , Humanic TJ , Hwang DS , Ichou R , Ilkaev R , Ilkiv I , Inaba M , Incani E , Innocenti GM , Innocen

Titolo volume/Rivista

THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS

Anno di pubblicazione

2011

ISSN

1434-6044

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

29

Ultimo Aggiornamento Citazioni

2017-04-23 03:20:56

Settori ERC

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Codici ASJC

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