Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV

Name: Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV
Author: Khachatryan, V., Işıldak, Bora

İsim	Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV
Yazar	Khachatryan, V., Işıldak, Bora
Basım Tarihi:	2014-11
Basım Yeri	- Springer International Publishing
Konu	Hadron-hadron scattering, Top physics
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1029-8479
Kayıt Numarası	1d2f9d77-30f2-4b96-9c84-04b4462fa239
Lokasyon	Natural and Mathematical Sciences
Tarih	2014-11
Notlar	BMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MES ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MESTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; STAR ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; DOE ; NSF.
Örnek Metin	A search is presented for standard model (SM) production of four top quarks (tt¯tt¯)(tt¯tt¯) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb−1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM tt¯tt¯tt¯tt¯ production is σSMtt¯tt¯≈1fbσtt¯tt¯SM≈1fb . A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.
DOI	10.1007/JHEP11(2014)154

Kaynağa git Özyeğin Üniversitesi

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Özyeğin Üniversitesi

Kaynağa git

Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV

Yazar Khachatryan, V., Işıldak, Bora

Basım Tarihi 2014-11

Basım Yeri - Springer International Publishing

Konu Hadron-hadron scattering, Top physics

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1029-8479

Kayıt Numarası 1d2f9d77-30f2-4b96-9c84-04b4462fa239

Lokasyon Natural and Mathematical Sciences

Tarih 2014-11

Notlar BMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MES ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MESTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; STAR ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; DOE ; NSF.

Örnek Metin A search is presented for standard model (SM) production of four top quarks (tt¯tt¯)(tt¯tt¯) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb−1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM tt¯tt¯tt¯tt¯ production is σSMtt¯tt¯≈1fbσtt¯tt¯SM≈1fb . A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.

DOI 10.1007/JHEP11(2014)154