Lecture 03. The Standard Model of Particle Physics. Part III Extensions of the Standard Model

Size: px
Start display at page:

Download "Lecture 03. The Standard Model of Particle Physics. Part III Extensions of the Standard Model"

Transcription

1 Lecture 03 The Standard Model of Particle Physics Part III Extensions of the Standard Model

2 Where the SM Works Excellent description of 3 of the 4 fundamental forces Explains nuclear structure, quark confinement, quark gluon plasma Explains weak interactions, radioactive decay Explains EM interactions Unifies EM and Weak Describes all known constituents of matter Agrees with empirical constraints Lepton and lepton flavor number conservation Electric / color charge conservation Left-handed weak interactions Precisely predicted Z mass Predicted existence of Higgs boson Describes mass generation of W/Z and fermions 2

3 What it Doesn't Include Empirical problems Neutrino masses Handedness of Weak Interactions and neutrinos Lepton generation number violation Theoretical problems Naturalness of Higgs mass (Hierarchy Problem) Grand Unification Theory (GUT) Couplings don't meet at one point Strong CP problem No symmetry protecting it Missing physics Dark Matter Dark Energy Extensions to the SM Satisfy the tight experimental constraints of the SM QCD, Electroweak symmetry breaking (Higgs), etc Leave known SM physics unchanged 3

4 Neutrinos Neutrino oscillations (2015 Nobel Prize) Neutrinos change flavor Violation of lepton flavor number Only possible for finite neutrino mass If m 0, helicity not good quantum number Can boost to frame moving faster than neutrino Neutrino properties Can the neutrino be its own antiparticle? Dirac vs Majorana Which neutrino is heaviest? Mass hierarchy Why are neutrinos so much lighter than other fermions? e.g. Seasaw mechanism Are there other kinds of neutrinos? Sterile neutrinos Right handed neutrinos So far, neutrinos are the only particles whose measured properties cannot be explained by the SM! 4

5 The Dark Universe The SM only explains ~ 5% of the stuff that makes up the universe The remaining 95% is Dark, e.g. we don't see it This description comes from many, many measurements! But no model of how the Dark sector behaves Dark Matter is likely a new particle Not included in the SM Need to add something to describe it and its interactions Dark Energy is even more bizarre Explains expansion of the universe We know it's there, but don't know much more about it 5

6 Axions The Strong CP problem CP mirror reflection and charge conjugation Look at experiment in a mirror and change sign of electric charge Are experimental results unchanged? Recall Noether's theorem: Relationship between symmetry and conserved charge For CP to be conserved, there must be a symmetry protecting it CP is conserved in strong interactions All experiments tell us this No symmetry protecting it in SM The Axion Add a new symmetry to strong interaction Special type of field This would give CP as conserved charge Satisfy Noether's theorem Explain the strong CP problem The axion is the particle associated with this field So far not observed 6

7 Supersymmetry (SUSY) Symmetry between bosons and fermions Every SM boson has a SUSY fermion partner Every SM fermion has a SUSY boson partner SUSY particles are called sparticles Doubles number of elementary particles SUSY fermions are append -ino to particle name Wino, gluino, etc SUSY bosons prepend s to particle name Selectron, squark, etc 7

8 SUSY Breaking SUSY predicts particles and sparticles with same mass But we don't see 511 kev selectrons SUSY must be broken (like Higgs does to electroweak gauge symmetry) Same mechanism breaks SUSY and Electroweak symmetry Particles and sparticles no longer have same mass Naturally gives sparticle masses at TeV scale Peculiarity of SUSY Requires more than one Higgs doublet Maybe we see signs of this at the LHC? Time will tell 8

9 R-Parity SUSY allows for exotic processes like proton decay Proton decay has never been observed t 1/2 > years R-Parity requires even number of sparticles in interactions Sparticles produced in pairs Keeps proton stable Consequence: Lightest SUSY particle would be stable Possible DM candidate 9

10 The Hierarchy Problem Radiative Corrections to Mass Virtual interaction with own field Example: Lamb shift Electron emits and absorbs a photon Shows up as shift in electron mass Radiative corrections to the Higgs mass Includes diagrams with e.g. top loops These loops give contributions This extreme cancelation of 34 orders of magnitude requires a lot of fine tuning 10

11 SUSY and the Hierarchy Problem SUSY adds a boson loop for every fermion loop Bosons give + sign, fermions give sign These cancel one another If SUSY were unbroken, they would cancel perfectly Since SUSY is broken, the cancelation isn't perfect Naturally gives ~100 GeV Higgs mass 11

12 SUSY and GUT Without SUSY, running of couplings do not meet With SUSY, they meet at one point This implies that SUSY allow for unification of strong, weak, and EM forces in single force 12

13 Characteristics of SUSY Full SUSY contains 105 free parameters I can fit an elephant with 105 parameters! Usually work in minimal versions of SUSY Minimal Supersymmetric Standard Model (MSSM) Only 4 ½ free parameters 4 parameters and one sign Still TONS of freedom Countless models for new physics Next to MSSM (NMSSM) Relax conditions and add another free parameter And so on... 13

Lecture 01. Elementary Particle Physics

Lecture 01. Elementary Particle Physics Elementary Particle Physics Particle Astrophysics Particle physics Fundamental constituents of nature Most basic building blocks Describe all particles and interactions Shortest length scales available

More information

Lecture 18 - Beyond the Standard Model

Lecture 18 - Beyond the Standard Model Lecture 18 - Beyond the Standard Model Why is the Standard Model incomplete? Grand Unification Baryon and Lepton Number Violation More Higgs Bosons? Supersymmetry (SUSY) Experimental signatures for SUSY

More information

Lecture 03. The Standard Model of Particle Physics. Part II The Higgs Boson Properties of the SM

Lecture 03. The Standard Model of Particle Physics. Part II The Higgs Boson Properties of the SM Lecture 03 The Standard Model of Particle Physics Part II The Higgs Boson Properties of the SM The Standard Model So far we talked about all the particles except the Higgs If we know what the particles

More information

Physics 662. Particle Physics Phenomenology. February 21, Physics 662, lecture 13 1

Physics 662. Particle Physics Phenomenology. February 21, Physics 662, lecture 13 1 Physics 662 Particle Physics Phenomenology February 21, 2002 Physics 662, lecture 13 1 Physics Beyond the Standard Model Supersymmetry Grand Unified Theories: the SU(5) GUT Unification energy and weak

More information

Physics Beyond the Standard Model. Marina Cobal Fisica Sperimentale Nucleare e Sub-Nucleare

Physics Beyond the Standard Model. Marina Cobal Fisica Sperimentale Nucleare e Sub-Nucleare Physics Beyond the Standard Model Marina Cobal Fisica Sperimentale Nucleare e Sub-Nucleare Increasingly General Theories Grand Unified Theories of electroweak and strong interactions Supersymmetry

More information

SUSY Phenomenology & Experimental searches

SUSY Phenomenology & Experimental searches SUSY Phenomenology & Experimental searches Slides available at: Alex Tapper http://www.hep.ph.ic.ac.uk/~tapper/lecture.html Objectives - Know what Supersymmetry (SUSY) is - Understand qualitatively the

More information

SUPERSYMETRY FOR ASTROPHYSICISTS

SUPERSYMETRY FOR ASTROPHYSICISTS Dark Matter: From the Cosmos to the Laboratory SUPERSYMETRY FOR ASTROPHYSICISTS Jonathan Feng University of California, Irvine 29 Jul 1 Aug 2007 SLAC Summer Institute 30 Jul 1 Aug 07 Feng 1 Graphic: N.

More information

Introduction to Supersymmetry

Introduction to Supersymmetry Introduction to Supersymmetry I. Antoniadis Albert Einstein Center - ITP Lecture 5 Grand Unification I. Antoniadis (Supersymmetry) 1 / 22 Grand Unification Standard Model: remnant of a larger gauge symmetry

More information

Kaluza-Klein Theories - basic idea. Fig. from B. Greene, 00

Kaluza-Klein Theories - basic idea. Fig. from B. Greene, 00 Kaluza-Klein Theories - basic idea Fig. from B. Greene, 00 Kaluza-Klein Theories - basic idea mued mass spectrum Figure 3.2: (Taken from [46]). The full spectrum of the UED model at the first KK level,

More information

The Standard Model of particle physics and beyond

The Standard Model of particle physics and beyond The Standard Model of particle physics and beyond - Lecture 3: Beyond the Standard Model Avelino Vicente IFIC CSIC / U. Valencia Physics and astrophysics of cosmic rays in space Milano September 2016 1

More information

Supersymmetry and other theories of Dark Matter Candidates

Supersymmetry and other theories of Dark Matter Candidates Supersymmetry and other theories of Dark Matter Candidates Ellie Lockner 798G Presentation 3/1/07 798G 3/1/07 1 Overview Why bother with a new theory? Why is Supersymmetry a good solution? Basics of Supersymmetry

More information

Lecture 4 - Beyond the Standard Model (SUSY)

Lecture 4 - Beyond the Standard Model (SUSY) Lecture 4 - Beyond the Standard Model (SUSY) Christopher S. Hill University of Bristol Warwick Flavour ++ Week April 11-15, 2008 Recall the Hierarchy Problem In order to avoid the significant finetuning

More information

Electroweak and Higgs Physics

Electroweak and Higgs Physics Electroweak and Higgs Physics Lecture 2 : Higgs Mechanism in the Standard and Supersymmetric Models Alexei Raspereza DESY Summer Student Program Hamburg August 2017 Standard Model (Summary) Building blocks

More information

The Standard Model and Beyond

The Standard Model and Beyond The Standard Model and Beyond Nobuchika Okada Department of Physics and Astronomy The University of Alabama 2011 BCVSPIN ADVANCED STUDY INSTITUTE IN PARTICLE PHYSICS AND COSMOLOGY Huê, Vietnam, 25-30,

More information

Beyond the SM: SUSY. Marina Cobal University of Udine

Beyond the SM: SUSY. Marina Cobal University of Udine Beyond the SM: SUSY Marina Cobal University of Udine Why the SM is not enough The gauge hierarchy problem Characteristic energy of the SM: M W ~100 GeV Characteristic energy scale of gravity: M P ~ 10

More information

Higgs Signals and Implications for MSSM

Higgs Signals and Implications for MSSM Higgs Signals and Implications for MSSM Shaaban Khalil Center for Theoretical Physics Zewail City of Science and Technology SM Higgs at the LHC In the SM there is a single neutral Higgs boson, a weak isospin

More information

Supersymmetry and a Candidate for Dark Matter

Supersymmetry and a Candidate for Dark Matter Supersymmetry and a Candidate for Dark Matter Elizabeth Lockner Department of Physics, University of Maryland College Park, MD 20742 April 20, 2007. The Standard Model has been a powerful tool in understanding

More information

Pseudo-Dirac Bino as Dark Matter and Signatures of D-Type G

Pseudo-Dirac Bino as Dark Matter and Signatures of D-Type G and Signatures of D-Type Gauge Mediation Ken Hsieh Michigan State Univeristy KH, Ph. D. Thesis (2007) ArXiv:0708.3970 [hep-ph] Other works with M. Luty and Y. Cai (to appear) MSU HEP Seminar November 6,

More information

SUSY and Exotics. UK HEP Forum"From the Tevatron to the LHC, Cosener s House, May /05/2009 Steve King, UK HEP Forum '09, Abingdon 1

SUSY and Exotics. UK HEP ForumFrom the Tevatron to the LHC, Cosener s House, May /05/2009 Steve King, UK HEP Forum '09, Abingdon 1 SUSY and Exotics Standard Model and the Origin of Mass Puzzles of Standard Model and Cosmology Bottom-up and top-down motivation Extra dimensions Supersymmetry - MSSM -NMSSM -E 6 SSM and its exotics UK

More information

November 24, Scalar Dark Matter from Grand Unified Theories. T. Daniel Brennan. Standard Model. Dark Matter. GUTs. Babu- Mohapatra Model

November 24, Scalar Dark Matter from Grand Unified Theories. T. Daniel Brennan. Standard Model. Dark Matter. GUTs. Babu- Mohapatra Model Scalar from November 24, 2014 1 2 3 4 5 What is the? Gauge theory that explains strong weak, and electromagnetic forces SU(3) C SU(2) W U(1) Y Each generation (3) has 2 quark flavors (each comes in one

More information

Search for SUperSYmmetry SUSY

Search for SUperSYmmetry SUSY PART 3 Search for SUperSYmmetry SUSY SUPERSYMMETRY Symmetry between fermions (matter) and bosons (forces) for each particle p with spin s, there exists a SUSY partner p~ with spin s-1/2. q ~ g (s=1)

More information

Little Higgs Models Theory & Phenomenology

Little Higgs Models Theory & Phenomenology Little Higgs Models Theory Phenomenology Wolfgang Kilian (Karlsruhe) Karlsruhe January 2003 How to make a light Higgs (without SUSY) Minimal models The Littlest Higgs and the Minimal Moose Phenomenology

More information

String Theory in the LHC Era

String Theory in the LHC Era String Theory in the LHC Era J Marsano (marsano@uchicago.edu) 1 String Theory in the LHC Era 1. Electromagnetism and Special Relativity 2. The Quantum World 3. Why do we need the Higgs? 4. The Standard

More information

Speculations on extensions of symmetry and interctions to GUT energies Lecture 16

Speculations on extensions of symmetry and interctions to GUT energies Lecture 16 Speculations on extensions of symmetry and interctions to GUT energies Lecture 16 1 Introduction The use of symmetry, as has previously shown, provides insight to extensions of present physics into physics

More information

Week 3 - Part 2 Recombination and Dark Matter. Joel Primack

Week 3 - Part 2 Recombination and Dark Matter. Joel Primack Astro/Phys 224 Spring 2012 Origin and Evolution of the Universe Week 3 - Part 2 Recombination and Dark Matter Joel Primack University of California, Santa Cruz http://pdg.lbl.gov/ In addition to the textbooks

More information

Beyond the Standard Model

Beyond the Standard Model Beyond the Standard Model The Standard Model Problems with the Standard Model New Physics Supersymmetry Extended Electroweak Symmetry Grand Unification References: 2008 TASI lectures: arxiv:0901.0241 [hep-ph]

More information

Origin of the Universe - 2 ASTR 2120 Sarazin. What does it all mean?

Origin of the Universe - 2 ASTR 2120 Sarazin. What does it all mean? Origin of the Universe - 2 ASTR 2120 Sarazin What does it all mean? Fundamental Questions in Cosmology 1. Why did the Big Bang occur? 2. Why is the Universe old? 3. Why is the Universe made of matter?

More information

Properties of the Higgs Boson, and its interpretation in Supersymmetry

Properties of the Higgs Boson, and its interpretation in Supersymmetry Properties of the Higgs Boson, and its interpretation in Supersymmetry U. Ellwanger, LPT Orsay The quartic Higgs self coupling and Supersymmetry The Next-to-Minimal Supersymmetric Standard Model Higgs

More information

Lecture 12. Dark Matter. Part II What it could be and what it could do

Lecture 12. Dark Matter. Part II What it could be and what it could do Dark Matter Part II What it could be and what it could do Theories of Dark Matter What makes a good dark matter candidate? Charge/color neutral (doesn't have to be though) Heavy We know KE ~ kev CDM ~

More information

12 Mar 2004, KTH, Stockholm. Peter Skands Dept. of Theoretical High Energy Physics, Lund University LHC

12 Mar 2004, KTH, Stockholm. Peter Skands Dept. of Theoretical High Energy Physics, Lund University LHC 12 Mar 2004, KTH, Stockholm Peter Skands Dept. of Theoretical High Energy Physics, Lund University RPV-SUSY @ LHC Including how to: Save the proton from a Supersymmetric Death. Measure a Neutrino Angle

More information

Is SUSY still alive? Dmitri Kazakov JINR

Is SUSY still alive? Dmitri Kazakov JINR 2 1 0 2 The l o o h c S n a e p o r Eu y g r e n E h g i of H s c i s y PAnhjou, France 2 1 0 2 e n 6 19 Ju Is SUSY still alive? Dmitri Kazakov JINR 1 1 Why do we love SUSY? Unifying various spins SUSY

More information

Minimal Supersymmetric Standard Model (MSSM). Nausheen R. Shah

Minimal Supersymmetric Standard Model (MSSM). Nausheen R. Shah Minimal Supersymmetric Standard Model (MSSM). Nausheen R. Shah June 8, 2003 1 Introduction Even though the Standard Model has had years of experimental success, it has been known for a long time that it

More information

Supersymmetry, Dark Matter, and Neutrinos

Supersymmetry, Dark Matter, and Neutrinos Supersymmetry, Dark Matter, and Neutrinos The Standard Model and Supersymmetry Dark Matter Neutrino Physics and Astrophysics The Physics of Supersymmetry Gauge Theories Gauge symmetry requires existence

More information

SFB 676 selected theory issues (with a broad brush)

SFB 676 selected theory issues (with a broad brush) SFB 676 selected theory issues (with a broad brush) Leszek Motyka Hamburg University, Hamburg & Jagellonian University, Krakow Physics of HERA and goals of the Large Hadron Collider The Higgs boson Supersymmetry

More information

Unification without Doublet-Triplet Splitting SUSY Exotics at the LHC

Unification without Doublet-Triplet Splitting SUSY Exotics at the LHC Unification without Doublet-Triplet Splitting SUSY Exotics at the LHC Jürgen Reuter Carleton University, Ottawa University of Freiburg W. Kilian, J. Reuter, PLB B642 (2006), 81, and work in progress (with

More information

Lecture 39, 40 Supplement: Particle physics in the LHC era

Lecture 39, 40 Supplement: Particle physics in the LHC era Lecture 39, 40 Supplement: Particle physics in the LHC era The Matter Particles (Fermions) plus their antiparticles... What is measured? quarks confined into hadrons A zoo of strongly interacting particles...

More information

E 6 Spectra at the TeV Scale

E 6 Spectra at the TeV Scale E 6 Spectra at the TeV Scale Instituts-Seminar Kerne und Teilchen, TU Dresden Alexander Knochel Uni Freiburg 24.06.2010 Based on: F. Braam, AK, J. Reuter, arxiv:1001.4074 [hep-ph], JHEP06(2010)013 Outline

More information

Unification without Doublet-Triplet Splitting SUSY Exotics at the LHC

Unification without Doublet-Triplet Splitting SUSY Exotics at the LHC Unification without Doublet-Triplet Splitting SUSY Exotics at the LHC Jürgen Reuter Albert-Ludwigs-Universität Freiburg W. Kilian, JR, PLB B642 (2006), 81; and work in progress (with F. Deppisch, W. Kilian)

More information

Physics 214 Experimental Particle Physics. Lecture 1 What to expect.

Physics 214 Experimental Particle Physics. Lecture 1 What to expect. Physics 214 Experimental Particle Physics Lecture 1 What to expect. We ll start with a grand tour. I do not expect you to understand this tour in detail. Instead, think of it as an orientation to which

More information

Lecture PowerPoint. Chapter 32 Physics: Principles with Applications, 6 th edition Giancoli

Lecture PowerPoint. Chapter 32 Physics: Principles with Applications, 6 th edition Giancoli Lecture PowerPoint Chapter 32 Physics: Principles with Applications, 6 th edition Giancoli 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the

More information

Where are we heading?

Where are we heading? Where are we heading? PiTP 2013 Nathan Seiberg IAS Purpose of this talk A brief, broad brush status report of particle physics Where we are How we got here (some historical perspective) What are the problems

More information

Physics at e + e - Linear Colliders. 4. Supersymmetric particles. M. E. Peskin March, 2002

Physics at e + e - Linear Colliders. 4. Supersymmetric particles. M. E. Peskin March, 2002 Physics at e + e - Linear Colliders 4. Supersymmetric particles M. E. Peskin March, 2002 In this final lecture, I would like to discuss supersymmetry at the LC. Supersymmetry is not a part of the Standard

More information

Physics 214 Experimental Particle Physics. Lecture 1 What to expect.

Physics 214 Experimental Particle Physics. Lecture 1 What to expect. Physics 214 Experimental Particle Physics Lecture 1 What to expect. 1 We ll start with a grand tour. I do not expect you to understand this tour in detail. Instead, think of it as an orientation to which

More information

Composite gluino at the LHC

Composite gluino at the LHC Composite gluino at the LHC Thomas Grégoire University of Edinburgh work in progress with Ami Katz What will we see at the LHC? Natural theory of EWSB? Supersymmetry? Higgs as PGSB (LH, RS-like)? Extra-

More information

Physics 214 Experimental Particle Physics. Lecture 1 What to expect.

Physics 214 Experimental Particle Physics. Lecture 1 What to expect. Physics 214 Experimental Particle Physics Lecture 1 What to expect. We ll start with a grand tour. I do not expect you to understand this tour in detail. Instead, think of it as an orientation to which

More information

EW Naturalness in Light of the LHC Data. Maxim Perelstein, Cornell U. ACP Winter Conference, March

EW Naturalness in Light of the LHC Data. Maxim Perelstein, Cornell U. ACP Winter Conference, March EW Naturalness in Light of the LHC Data Maxim Perelstein, Cornell U. ACP Winter Conference, March 3 SM Higgs: Lagrangian and Physical Parameters The SM Higgs potential has two terms two parameters: Higgs

More information

Split SUSY and the LHC

Split SUSY and the LHC Split SUSY and the LHC Pietro Slavich LAPTH Annecy IFAE 2006, Pavia, April 19-21 Why Split Supersymmetry SUSY with light (scalar and fermionic) superpartners provides a technical solution to the electroweak

More information

Supersymmetry Basics. J. Hewett SSI J. Hewett

Supersymmetry Basics. J. Hewett SSI J. Hewett Supersymmetry Basics J. Hewett SSI 2012 J. Hewett Basic SUSY References A Supersymmetry Primer, Steve Martin hep-ph/9709356 Theory and Phenomenology of Sparticles, Manual Drees, Rohini Godbole, Probir

More information

Discovery Physics at the Large Hadron Collider

Discovery Physics at the Large Hadron Collider + / 2 GeV N evt 4 10 3 10 2 10 CMS 2010 Preliminary s=7 TeV -1 L dt = 35 pb R > 0.15 R > 0.20 R > 0.25 R > 0.30 R > 0.35 R > 0.40 R > 0.45 R > 0.50 10 1 100 150 200 250 300 350 400 [GeV] M R Discovery

More information

Searches for Beyond SM Physics with ATLAS and CMS

Searches for Beyond SM Physics with ATLAS and CMS Searches for Beyond SM Physics with ATLAS and CMS (University of Liverpool) on behalf of the ATLAS and CMS collaborations 1 Why beyond SM? In 2012 the Standard Model of Particle Physics (SM) particle content

More information

Kaluza-Klein Dark Matter

Kaluza-Klein Dark Matter Kaluza-Klein Dark Matter Hsin-Chia Cheng UC Davis Pre-SUSY06 Workshop Complementary between Dark Matter Searches and Collider Experiments Introduction Dark matter is the best evidence for physics beyond

More information

A first trip to the world of particle physics

A first trip to the world of particle physics A first trip to the world of particle physics Itinerary Massimo Passera Padova - 13/03/2013 1 Massimo Passera Padova - 13/03/2013 2 The 4 fundamental interactions! Electromagnetic! Weak! Strong! Gravitational

More information

Astronomy 182: Origin and Evolution of the Universe

Astronomy 182: Origin and Evolution of the Universe Astronomy 182: Origin and Evolution of the Universe Prof. Josh Frieman Lecture 12 Nov. 18, 2015 Today Big Bang Nucleosynthesis and Neutrinos Particle Physics & the Early Universe Standard Model of Particle

More information

Supersymmetry. Physics Colloquium University of Virginia January 28, Stephen P. Martin Northern Illinois University

Supersymmetry. Physics Colloquium University of Virginia January 28, Stephen P. Martin Northern Illinois University Supersymmetry Physics Colloquium University of Virginia January 28, 2011 Stephen P. Martin Northern Illinois University 1 The Standard Model of particle physics The Hierarchy Problem : why is the Higgs

More information

How high could SUSY go?

How high could SUSY go? How high could SUSY go? Luc Darmé LPTHE (Paris), UPMC November 24, 2015 Based on works realised in collaboration with K. Benakli, M. Goodsell and P. Slavich (1312.5220, 1508.02534 and 1511.02044) Introduction

More information

Exceptional Supersymmetry. at the Large Hadron Collider

Exceptional Supersymmetry. at the Large Hadron Collider Exceptional Supersymmetry at the Large Hadron Collider E 6 SSM model and motivation Contents Why go beyond the Standard Model? Why consider non-minimal SUSY? Exceptional SUSY Structure, particle content

More information

The Scale-Symmetric Theory as the Origin of the Standard Model

The Scale-Symmetric Theory as the Origin of the Standard Model Copyright 2017 by Sylwester Kornowski All rights reserved The Scale-Symmetric Theory as the Origin of the Standard Model Sylwester Kornowski Abstract: Here we showed that the Scale-Symmetric Theory (SST)

More information

Open Questions in Particle Physics. Carlos Wagner Physics Department, EFI and KICP, Univ. of Chicago HEP Division, Argonne National Laboratory

Open Questions in Particle Physics. Carlos Wagner Physics Department, EFI and KICP, Univ. of Chicago HEP Division, Argonne National Laboratory Open Questions in Particle Physics Carlos Wagner Physics Department, EFI and KICP, Univ. of Chicago HEP Division, Argonne National Laboratory Society of Physics Students, Univ. of Chicago, Nov. 21, 2016

More information

Discovery potential for SUGRA/SUSY at CMS

Discovery potential for SUGRA/SUSY at CMS Discovery potential for SUGRA/SUSY at CMS Stefano Villa, Université de Lausanne, April 14, 2003 (Based on talk given at SUGRA20, Boston, March 17-21, 2003) Many thanks to: Massimiliano Chiorboli, Filip

More information

Low Energy Precision Tests of Supersymmetry

Low Energy Precision Tests of Supersymmetry Low Energy Precision Tests of Supersymmetry M.J. Ramsey-Musolf Caltech Wisconsin-Madison M.R-M & S. Su, hep-ph/0612057 J. Erler & M.R-M, PPNP 54, 351 (2005) Outline I. Motivation: Why New Symmetries? Why

More information

Kiwoon Choi (KAIST) 3 rd GCOE Symposium Feb (Tohoku Univ.)

Kiwoon Choi (KAIST) 3 rd GCOE Symposium Feb (Tohoku Univ.) Exploring New Physics beyond the Standard Model of Particle Physics Kiwoon Choi (KAIST) 3 rd GCOE Symposium Feb. 2011 (Tohoku Univ.) We are confronting a critical moment of particle physics with the CERN

More information

Particle Physics Lecture 1 : Introduction Fall 2015 Seon-Hee Seo

Particle Physics Lecture 1 : Introduction Fall 2015 Seon-Hee Seo Particle Physics Lecture 1 : Introduction Fall 2015 Seon-Hee Seo Particle Physics Fall 2015 1 Course Overview Lecture 1: Introduction, Decay Rates and Cross Sections Lecture 2: The Dirac Equation and Spin

More information

The Yang and Yin of Neutrinos

The Yang and Yin of Neutrinos The Yang and Yin of Neutrinos Ernest Ma Physics and Astronomy Department University of California Riverside, CA 92521, USA The Yang and Yin of Neutrinos (2018) back to start 1 Contents Introduction The

More information

The Dark Matter Puzzle and a Supersymmetric Solution. Andrew Box UH Physics

The Dark Matter Puzzle and a Supersymmetric Solution. Andrew Box UH Physics The Dark Matter Puzzle and a Supersymmetric Solution Andrew Box UH Physics Outline What is the Dark Matter (DM) problem? How can we solve it? What is Supersymmetry (SUSY)? One possible SUSY solution How

More information

First some Introductory Stuff => On The Web.

First some Introductory Stuff => On The Web. First some Introductory Stuff => On The Web http://hep.physics.utoronto.ca/~orr/wwwroot/phy357/phy357s.htm PHY357 = What is the Universe Made Of? Is the Universe Made of These? Proton = (u u d) held

More information

THE NEUTRINOS. Boris Kayser & Stephen Parke Fermi National Accelerator Laboratory

THE NEUTRINOS. Boris Kayser & Stephen Parke Fermi National Accelerator Laboratory June 9, 2009 THE NEUTRINOS Boris Kayser & Stephen Parke Fermi National Accelerator Laboratory Recent, irrefutable evidence establishes that the ubiquitous neutrinos have tiny masses. Neutrino mass is physics

More information

LHC Phenomenology of SUSY multi-step GUTs

LHC Phenomenology of SUSY multi-step GUTs 0/14 J. Reuter LHC Phenomenology of SUSY multi-step GUTs PHENO 09, Madison, 1.5.009 LHC Phenomenology of SUSY multi-step GUTs Jürgen Reuter Albert-Ludwigs-Universität Freiburg W. Kilian, JR, PL B64 (006),

More information

Twin Higgs Theories. Z. Chacko, University of Arizona. H.S Goh & R. Harnik; Y. Nomura, M. Papucci & G. Perez

Twin Higgs Theories. Z. Chacko, University of Arizona. H.S Goh & R. Harnik; Y. Nomura, M. Papucci & G. Perez Twin Higgs Theories Z. Chacko, University of Arizona H.S Goh & R. Harnik; Y. Nomura, M. Papucci & G. Perez Precision electroweak data are in excellent agreement with the Standard Model with a Higgs mass

More information

Chapter 4 Supersymmetry

Chapter 4 Supersymmetry Chapter 4 Supersymmetry Contents 4.1 Introduction... 68 4. Difficulties in the standard model... 68 4.3 Minimal Supersymmetric Standard Model... 69 4.3.1 SUSY... 69 4.3. Reasons to introduce SUSY... 69

More information

Probing Supersymmetric Connection with Dark Matter

Probing Supersymmetric Connection with Dark Matter From サイエンス 82 Probing Supersymmetric Connection with Dark Matter Taken from Science, 1982 Teruki Kamon Department of Physics Texas A&M University November 3, 2005 Physics Colloquium, Texas Tech University

More information

The Future of Supersymmetry

The Future of Supersymmetry The Future of Supersymmetry Sreerup Raychaudhuri TIFR HEP Seminar Institute of Physics, Bhubaneswar ...in recent times, supersymmetry has been getting a lot of bad press Supersymmetry Bites the Dust Where

More information

The Standard Model, Supersymmetry and ZooFinder at CDF. Matthew C. Cervantes Department of Physics Texas A&M University Master defense: 7/21/2006

The Standard Model, Supersymmetry and ZooFinder at CDF. Matthew C. Cervantes Department of Physics Texas A&M University Master defense: 7/21/2006 The Standard Model, Supersymmetry and ZooFinder at CDF Matthew C. Cervantes Department of Physics Texas A&M University Master defense: 7/21/2006 1 Outline The Standard Model of Particle Physics Supersymmetry

More information

kev sterile Neutrino Dark Matter in Extensions of the Standard Model

kev sterile Neutrino Dark Matter in Extensions of the Standard Model kev sterile Neutrino Dark Matter in Extensions of the Standard Model Manfred Lindner Max-Planck-Institut für Kernphysik, Heidelberg F. Bezrukov, H. Hettmannsperger, ML, arxiv:0912.4415, PRD81,085032 The

More information

Overview. The quest of Particle Physics research is to understand the fundamental particles of nature and their interactions.

Overview. The quest of Particle Physics research is to understand the fundamental particles of nature and their interactions. Overview The quest of Particle Physics research is to understand the fundamental particles of nature and their interactions. Our understanding is about to take a giant leap.. the Large Hadron Collider

More information

PHYSICS BEYOND SM AND LHC. (Corfu 2010)

PHYSICS BEYOND SM AND LHC. (Corfu 2010) PHYSICS BEYOND SM AND LHC (Corfu 2010) We all expect physics beyond SM Fantastic success of SM (LEP!) But it has its limits reflected by the following questions: What is the origin of electroweak symmetry

More information

BACKGROUND LHC Physics Program Summary LHC PHYSICS. Andrés G. Delannoy 1. 1 Vanderbilt University. 2014/07/21 1

BACKGROUND LHC Physics Program Summary LHC PHYSICS. Andrés G. Delannoy 1. 1 Vanderbilt University. 2014/07/21 1 2014/07/21 delannoy@cern.ch 1 LHC PHYSICS Andrés G. Delannoy 1 1 Vanderbilt University 2014/07/21 delannoy@cern.ch 2 1 BACKGROUND The Large Hadron Collider The Standard Model The Higgs Mechanism SuperSymmetry

More information

Supersymmetry in Cosmology

Supersymmetry in Cosmology Supersymmetry in Cosmology Raghavan Rangarajan Ahmedabad University raghavan@ahduni.edu.in OUTLINE THE GRAVITINO PROBLEM SUSY FLAT DIRECTIONS AND THEIR COSMOLOGIAL IMPLICATIONS SUSY DARK MATTER SUMMARY

More information

An Introduction to Particle Physics

An Introduction to Particle Physics An Introduction to Particle Physics The Universe started with a Big Bang The Universe started with a Big Bang What is our Universe made of? Particle physics aims to understand Elementary (fundamental)

More information

Dark matter and IceCube neutrinos

Dark matter and IceCube neutrinos IL NUOVO CIMENTO 38 C (2015) 31 DOI 10.1393/ncc/i2015-15031-4 Colloquia: IFAE 2014 Dark matter and IceCube neutrinos R. Biondi Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi di L Aquila,

More information

SUSY Searches at the TEVATRON

SUSY Searches at the TEVATRON SUSY Searches at the TEVATRON Why Supersymmetry? Why Colliders? Example 1: jets + MET search for squarks and gluinos Example 2: tri lepton searches for charginos and neutralinos Example 3: rare Bs decays

More information

Grand Unification. Strong, weak, electromagnetic unified at Q M X M Z Simple group SU(3) SU(2) U(1) Gravity not included

Grand Unification. Strong, weak, electromagnetic unified at Q M X M Z Simple group SU(3) SU(2) U(1) Gravity not included Pati-Salam, 73; Georgi-Glashow, 74 Grand Unification Strong, weak, electromagnetic unified at Q M X M Z Simple group G M X SU(3) SU() U(1) Gravity not included (perhaps not ambitious enough) α(q ) α 3

More information

Elementary Particles, Flavour Physics and all that...

Elementary Particles, Flavour Physics and all that... Elementary Particles, Flavour Physics and all that... 1 Flavour Physics The term Flavour physics was coined in 1971 by Murray Gell-Mann and his student at the time, Harald Fritzsch, at a Baskin-Robbins

More information

Searches for Physics Beyond the Standard Model. Jay Wacker. APS April Meeting SLAC. A Theoretical Perspective. May 4, 2009

Searches for Physics Beyond the Standard Model. Jay Wacker. APS April Meeting SLAC. A Theoretical Perspective. May 4, 2009 Searches for Physics Beyond the Standard Model A Theoretical Perspective Jay Wacker SLAC APS April Meeting May 4, 2009 1 The Plan Motivations for Physics Beyond the Standard Model New Hints from Dark Matter

More information

LECTURE 2: Super theories

LECTURE 2: Super theories LECTURE 2: Super theories Carlos Muñoz Universidad Autónoma de Madrid & Instituto de Física Teórica UAM/CSIC ISAPP09-Como, July 8-16 Carlos Muñoz Super theories 2 ~0.00000001 Carlos Muñoz Super theories

More information

F. Börkeroth, F. J. de Anda, I. de Medeiros Varzielas, S. F. King. arxiv:

F. Börkeroth, F. J. de Anda, I. de Medeiros Varzielas, S. F. King. arxiv: F. Börkeroth, F. J. de Anda, I. de Medeiros Varzielas, S. F. King S FLASY 2015 arxiv:1503.03306 Standard Model Gauge theory SU(3)C X SU(2)L X U(1)Y Standard Model Gauge theory SU(3)C X SU(2)L X U(1)Y SM:

More information

The Higgs Boson and Electroweak Symmetry Breaking

The Higgs Boson and Electroweak Symmetry Breaking The Higgs Boson and Electroweak Symmetry Breaking 1. Minimal Standard Model M. E. Peskin Chiemsee School September 2014 The Higgs boson has an odd position in the Standard Model of particle physics. On

More information

Discovery of the Higgs Boson

Discovery of the Higgs Boson Discovery of the Higgs Boson Seminar: Key Experiments in Particle Physics Martin Vogrin Munich, 22. July 2016 Outline Theoretical part Experiments Results Open problems Motivation The SM is really two

More information

The Early Universe. Overview: The Early Universe. Accelerators recreate the early universe. Simple Friedmann equation for the radiation era:

The Early Universe. Overview: The Early Universe. Accelerators recreate the early universe. Simple Friedmann equation for the radiation era: The Early Universe Notes based on Teaching Company lectures, and associated undergraduate text with some additional material added. ) From µs to s: quark confinement; particle freezout. 2) From s to 3

More information

Non-Minimal SUSY Computation of observables and fit to exp

Non-Minimal SUSY Computation of observables and fit to exp Non-Minimal SUSY Computation of observables and fit to experimental data + Peter Athron, Alexander Voigt Dresden Fittino Workshop, 24th November 2010, DESY Outline 1 Introduction 2 Motivation 3 Outline

More information

A model of the basic interactions between elementary particles is defined by the following three ingredients:

A model of the basic interactions between elementary particles is defined by the following three ingredients: I. THE STANDARD MODEL A model of the basic interactions between elementary particles is defined by the following three ingredients:. The symmetries of the Lagrangian; 2. The representations of fermions

More information

Lecture 13 Beyond SM. Particles and Universe. I. Standard Model - problems. II. Beyond SM. Maria Krawczyk, Aleksander F. Żarnecki

Lecture 13 Beyond SM. Particles and Universe. I. Standard Model - problems. II. Beyond SM. Maria Krawczyk, Aleksander F. Żarnecki M.Krawczyk, AF.Zarnecki Particles and Universe 13 1 Particles and Universe Lecture 13 Beyond SM Maria Krawczyk, Aleksander F. Żarnecki Faculty of Physics UW I. Standard Model - problems II. Beyond SM M.Krawczyk,

More information

Unified Dark Matter. SUSY2014 Stephen J. Lonsdale. The University of Melbourne. In collaboration with R.R. Volkas. arxiv:

Unified Dark Matter. SUSY2014 Stephen J. Lonsdale. The University of Melbourne. In collaboration with R.R. Volkas. arxiv: arxiv:1407.4192 Unified Dark Matter SUSY2014 Stephen J. Lonsdale The University of Melbourne In collaboration with R.R. Volkas Unified Dark Matter Motivation: Asymmetric dark matter models Asymmetric symmetry

More information

Introduction to Elementary Particles

Introduction to Elementary Particles David Criffiths Introduction to Elementary Particles Second, Revised Edition WILEY- VCH WILEY-VCH Verlag GmbH & Co. KGaA Preface to the First Edition IX Preface to the Second Edition XI Formulas and Constants

More information

Physics at the Tevatron. Lecture IV

Physics at the Tevatron. Lecture IV Physics at the Tevatron Lecture IV Beate Heinemann University of California, Berkeley Lawrence Berkeley National Laboratory CERN, Academic Training Lectures, November 2007 1 Outline Lecture I: The Tevatron,

More information

Early SUSY Searches in Events with Leptons with the ATLAS-Detector

Early SUSY Searches in Events with Leptons with the ATLAS-Detector Early SUSY Searches in Events with Leptons with the ATLAS-Detector Timo Müller Johannes Gutenberg-Universität Mainz 2010-29-09 EMG Annual Retreat 2010 Timo Müller (Universität Mainz) Early SUSY Searches

More information

Supersymmetry Breaking

Supersymmetry Breaking Supersymmetry Breaking LHC Search of SUSY: Part II Kai Wang Phenomenology Institute Department of Physics University of Wisconsin Madison Collider Phemonology Gauge Hierarchy and Low Energy SUSY Gauge

More information

Non-Abelian SU(2) H and Two-Higgs Doublets

Non-Abelian SU(2) H and Two-Higgs Doublets Non-Abelian SU(2) H and Two-Higgs Doublets Technische Universität Dortmund Wei- Chih Huang 25 Sept 2015 Kavli IPMU arxiv:1510.xxxx(?) with Yue-Lin Sming Tsai, Tzu-Chiang Yuan Plea Please do not take any

More information

The God particle at last? Astronomy Ireland, Oct 8 th, 2012

The God particle at last? Astronomy Ireland, Oct 8 th, 2012 The God particle at last? Astronomy Ireland, Oct 8 th, 2012 Cormac O Raifeartaigh Waterford Institute of Technology CERN July 4 th 2012 (ATLAS and CMS ) A new particle of mass 125 GeV I The Higgs boson

More information

U(1) Gauge Extensions of the Standard Model

U(1) Gauge Extensions of the Standard Model U(1) Gauge Extensions of the Standard Model Ernest Ma Physics and Astronomy Department University of California Riverside, CA 92521, USA U(1) Gauge Extensions of the Standard Model (int08) back to start

More information

Searching for sneutrinos at the bottom of the MSSM spectrum

Searching for sneutrinos at the bottom of the MSSM spectrum Searching for sneutrinos at the bottom of the MSSM spectrum Arindam Chatterjee Harish-Chandra Research Insitute, Allahabad In collaboration with Narendra Sahu; Nabarun Chakraborty, Biswarup Mukhopadhyay

More information