Measurement of the ratio of the production cross sections times branching fractions of Bc ±→ J/ψπ± and B± → J/ψK± and (Formula presented.) in pp collisions at (Formula presented.) TeV

The CMS Collaboration

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

21 اقتباسات (Scopus)

ملخص

The ratio of the production cross sections times branching fractions (Formula presented.)(Formula presented.) is studied in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires Bc ± and B± mesons with transverse momentum pT > 15 GeV and rapidity |y| < 1.6. The data sample corresponds to an integrated luminosity of 5.1 fb−1. The ratio is determined to be (Formula presented.)(Formula presented.). The Bc ± → J/ψπ±π±π decay is also observed in the same data sample. Using a model-independent method developed to measure the efficiency given the presence of resonant behaviour in the three-pion system, the ratio of the branching fractions (Formula presented.)(Formula presented.) is measured to be (Formula presented.)(Formula presented.), consistent with the previous LHCb result.[Figure not available: see fulltext.].

اللغة الأصليةEnglish
رقم المقال63
دوريةJournal of High Energy Physics
مستوى الصوت2015
رقم الإصدار1
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2015

ASJC Scopus subject areas

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بصمة

أدرس بدقة موضوعات البحث “Measurement of the ratio of the production cross sections times branching fractions of Bc ±→ J/ψπ± and B± → J/ψK± and (Formula presented.) in pp collisions at (Formula presented.) TeV'. فهما يشكلان معًا بصمة فريدة.

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