Measuring Higgs boson couplings at the LHC

نویسندگان

  • D. Zeppenfeld
  • R. Kinnunen
  • A. Nikitenko
  • E. Richter-Wa̧s
چکیده

For an intermediate mass Higgs boson with SM-like couplings the LHC allows observation of a variety of decay channels in production by gluon fusion and weak boson fusion. Cross section ratios provide measurements of various ratios of Higgs couplings, with accuracies of order 15% for 100 fb−1 of data in each of the two LHC experiments. For Higgs masses above 120 GeV, minimal assumptions on the Higgs sector allow for an indirect measurement of the total Higgs boson width with an accuracy of 10 to 20%, and of the H → WW partial width with an accuracy of about 10%.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ττ: toward a model independent determination of the Higgs boson couplings at the LHC

The possibility of detecting a Higgs boson through several production and decay channels is instrumental to the measurement of its couplings. In this paper we study the pp → tt̄H, H → τ+τ− channel at the LHC, for the case of a scalar Higgs boson, and use the obtained results to improve on existing strategies toward a model independent determination of the Higgs boson couplings. The case of a sca...

متن کامل

Measuring Higgs couplings from LHC data.

Following recent ATLAS and CMS publications we interpret the results of their Higgs searches in terms of standard model operators. For a Higgs boson mass of 125 GeV we determine several Higgs couplings from published 2011 data and extrapolate the results towards different scenarios of LHC running. Even though our analysis is limited by low statistics we already derive meaningful constraints on ...

متن کامل

Exploring Complex Phases of the MSSM at Future Colliders

The Minimal Supersymmetric Standard Model (cMSSM) may possess several complex phases. These phases can enter via loop corrections into the Higgs boson sector [1] and affect the Higgs boson masses end couplings [2, 3, 4, 5, 6, 7]. Most prominently the phase of the third generation trilinear couplings, φAt,b , have an effect, while the phases from the gaugino sector usually have a smaller impact....

متن کامل

Measuring Higgs Couplings at a Linear Collider

A new particle compatible with a Higgs boson [1] has been discovered by ATLAS [2] and CMS [3]. While the existence of a narrow light resonance has been established beyond reasonable doubt, the endeavor to study its properties has only begun [4]. Soon, the LHC energy will be increased to up to 14 TeV. Detector and machine upgrades can give us an integrated luminosity of up to 3000 fb−1 at this e...

متن کامل

Supersymmetric Electroweak Corrections to Charged Higgs Boson Production in Association with a Top Quark at Hadron Colliders

We calculate the O(αewm 2 t(b)/m 2 W ) and O(αewm 4 t(b)/m 4 W ) supersymmetric electroweak corrections to the cross section for the charged Higgs boson production in association with a top quark at the Tevatron and the LHC. These corrections arise from the quantum effects which are induced by potentially large Yukawa couplings from the Higgs sector and the chargino-top(bottom)-sbottom(stop) co...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000